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Qualitative clay mineralogy of the Middle and Upper Eocene in north-western Belgium
Provedor de dados: 27
Autores: Jacobs, P.; De Coninck, F.
Detailed chemical and X-ray analysis of representative clay fraction samples from the Maldegem and Zelzate Formations (Middle and Upper Eocene) in western Belgium reveal a rather constant clay mineralogy, consisting mainly of kaolinite, smectitic minerals (of the nontronite type) and illite. Glauconite occurs in two different forms, the coarser grained being better crystallized. Local climatic or landscape conditions as inferred from the qualitative clay mineralogical suite point towards a shallow marine sedimentary environment in transgressive phase. A low relief restricted drainage area delivered kaolinite to the basin under moderate weathering conditions, transforming volcanic ash layers into smectites.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2825

&lt;i&gt;Artemia&lt;/i&gt; in aquatic toxicology: a review
Provedor de dados: 27
Autores: Persoone, G.; Wells, P.G.
Due to commercial availability of dried cysts from which live test material can be hatched at will, &lt;i&gt;Artemia&lt;/i&gt; is used extensively in research and applied toxicology.Despite the extensive literature on dose-effect relationships of chemicals on brine shrimp, it was not until 1980 that an experimental protocol was developed for a simple acute toxicity test with &lt;i&gt;Artemia&lt;/i&gt; nauplii, meeting the prerequisites for standardization.The reliability and accuracy of this short-term test were determined during an intercalibration exercise involving 80 laboratories and were found to be quite satisfactory. Consequently, the so-called ARC-test, which is one of the very few standardized marine toxicity tests, is now used routinely at the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3200

The effect of different levels and sources of dietary phosphatidylcholine on the growth, survival, stress resistance, and fatty acid composition of postlarval &lt;i&gt;Penaeus vannamei&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Camara, M.R.; Sorgeloos, P.
The effect of dietary purified phosphatidylcholine (PC) was evaluated on growth, survival, resistance to osmotic shock, and fatty acid composition of early postlarval &lt;i&gt;Penaeus vannamei&lt;/i&gt; (0.3 mg initial dry weight) fed semi-purified diets. PC sources used were purified soybean PC (SPC, 95% purity), chicken-egg PC (ECP, 94% purity), and de-oiled soybean lecithin (DSL, 23% PC). The growth response of shrimp fed 1.5% of SPC or 6.5% of DSL was significantly greater than that of shrimp fed a PC-deficient diet, whereas no effect was observed either on survival or stress resistance. Further increasing the dietary level of soybean PC from 1.5% to 3.3% resulted in a significant decrease of the shrimp weight gain. Shrimp receiving 1.5% of PC,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus vannamei.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2932

&lt;i&gt;Calomicrolaimus compridus&lt;/i&gt; (Gerlach, 1956) n. comb., a marine nematode with a female producing a copulatory plug
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7044

Determination of protein-bound copper and zinc in some organs of the cuttlefish &lt;i&gt;Sepia officinalis&lt;/i&gt; L
Provedor de dados: 27
Autores: Decleir, W.; Vlaeminck, A.; Geladi, P.; Van Grieken, R.
1. The copper, zinc and iron content of blood and water soluble extracts from several organs of &lt;i&gt;Sepia officinalis&lt;/i&gt; L. have been determined with atomic absorption spectrometry. 2. The relatively high concentration of copper and zinc in the branchial gland points to its probable role in trace element metabolism. 3. After gel filtration a low molecular weight copper and zinc containing fraction can be isolated from the gland. 4. A possible role of this fraction in hemocyanin biosynthesis is postulated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Copper Proteins Zinc Sepia officinalis Linnaeus; 1758 [Common cuttlefish].
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3584

Accumulation mechanisms and geographical distribution of PCBs in the North Sea
Provedor de dados: 27
Autores: Delbeke, K.; Joiris, C.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6893

Contribution à l'étude du plankton dans le port d'Ostende
Provedor de dados: 27
Autores: De Pauw, N.
Resuming our proper observations and taking in account the collected data in the literature we can conclude that: (1) diatoms and copepods are the principal components of the Oostende plankton; (2) concentration of zoo- and phytoplankton is highest in summer and autumn; (3) there is a physico-chemical and biological gradient between the front and rear of the port. The gradation is decreasing for salinity, oxygen concentration, pH, number of marine species and the total biomass. The gradient is increasing for temperature and freshwater organisms; (4) several observed species are new to the Belgian coast: 4 copepods, 5 ciliophores, 1 cumacean and 2 diatoms; (5) although the number of species typical for a port is small, several species (observed in large...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition Ecology Plankton ANE; Belgium; Oostende Harbour ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1969
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3440

Deposition of atmospheric trace elements into the North Sea: coastal, ship, platform measurements and model predictions
Provedor de dados: 27
Autores: Injuk, J.; Van Grieken, R.; De Leeuw, G.
The atmospheric input of up to 16 trace and other elements into the North Sea is further assessed from aerosol concentrations measured at a coastal station in Belgium, on ships during two cruises, and on a platform, in the years 1992-1994. The Slinn and Slinn model is used to calculate the dry deposition from the measured aerosol concentrations. The total (dry and wet) deposition into the North Sea environment is estimated to be (in tonnes per year): 560 for V, 1300 for Cr, 650 for Ni, 690 for Cu, 3500 for Zn and 1970 for Pb. The 'giant' particles dominate the fluxes. The atmospheric contribution to the total input into the North Sea, including riverine inputs and direct discharges, are estimated to be 28% for Cu, 29% for Zn and 57% for Pb. The inputs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Experimental data Fallout Heavy metals Measurement Modelling ANE; North Sea.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=309

Influence of temperature on the reproductive potential of two brackish-water harpacticoids (Crustacea: Copepoda)
Provedor de dados: 27
Autores: Heip, C.H.R.; Smol, N.
The reproductive potential of two harpacticoid copepods, &lt;i&gt;Tachidius discipes&lt;/i&gt; and &lt;i&gt;Paronychocamptus nanus&lt;/i&gt;, as measured by the intrinsic rate of natural increase, r&lt;sub&gt;m&lt;/sub&gt;, has been studied. The influence of temperature on all factors used in the calculation of r&lt;sub&gt;m&lt;/sub&gt; has been taken into account. Generation time, which has also been detected in a third species, &lt;i&gt;Nitocra typica&lt;/i&gt;, is the single factor which is most affected by temperature and which has the most pronounced effect on r&lt;sub&gt;m&lt;/sub&gt;. Values of the reproductive potential differ considerably according to temperature, and thus to the time of the year; during the spring bloom more than half the...
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3528

Contributions à l'étude des bactéries marines du littoral belge: IV. Recherche quantitative de la richesse microbienne de l'eau du bassin de chasse d'Ostende par lecture directe sur membranes filtrantes
Provedor de dados: 27
Autores: Persoone, G.; De Pauw, N.
In a series of bi-mensual samplings in 1966, the method of direct counting on membrane filters has been used to determine the quantity of bacteria present in the water of the Sluice-dock in Ostend (Belgium) as a possible important food-stock for oysters which are reared there.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria Community composition Filters Membranes Oyster culture Quantitative distribution Shallow water ANE; Belgium; Belgian Coast ANE; Belgium; Oostende; Sluice Dock.
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/294746.pdf

The succession of benthic micrometazoans in a brackish water habitat
Provedor de dados: 27
Autores: Heip, C.H.R.
During the investigation of a shallow brackish water pond in northern Belgium, attention was paid to the quantitative occurrence of several micro-metazoan groups of the benthos: hydrozoa, oligochaeta, nematoda, copepoda and ostracoda. These groups show a succession in time, each group having a different moment of maximum abundance.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Brackishwater environment Ecological succession Belgium; Knokke-Heist; Dievengat.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3426

Etude des migrations nycthémérales du zooplankton dans un milieu marin peu profond
Provedor de dados: 27
Autores: Daro, M.H.
The Sluice-dock of Ostend, a shallow (1.5 m) marine biotope of 86 ha stays closed during some 6-7 months of the year and is not influenced by the tides. During 24 h cycles the nycthemeral migrations of the zooplankton at 5 depths in a watercolumn of 1 meter were studied in relation to several environmental factors: water temperature, dissolved oxygen, pH and chlorophyll content. The photosynthesis shows a minimum during the night and shows a maximum during the late afternoon, at which time the water-temperature is also maximal. Holo- and meroplanktonic organisms migrate towards the surface around 3-5 o'clock a.m., at which time the chlorophyll content is minimal, hence our hypothesis of nocturnal grazing, this phenomenon perhaps combined with a nocturnal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Migrations Nyctimeral rhythms Shallow water Zooplankton ANE; Belgium; Oostende; Sluice Dock.
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3483

The Sluice-dock at Ostend
Provedor de dados: 27
Autores: Polk, P.
The sluice-dock at Ostend is an artificial lagoon (1.5 m deep and with an area of 86 ha) connected to the harbour of Ostend and the North Sea by sluices (vannes). At low tides, during spring tide, the whole dock can be emptied, washing out the planktonic biomass. As an oyster culture exists in this biotope, applied and fundamental research is done. Planktonic larvae of oyster predators can be eliminated from the biotope by washing out the whole water volume during their bloom and replacing it by new sea-water. The oyster pest &lt;i&gt;Crepidula fornicata&lt;/i&gt; (introduced with oyster spatfall from the Netherlands and reproducing heavily in the sluice-dock, otherwise not occurring along the Belgian coast) is controlled in this way (before: 15,746...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3587

Het 'bijzondere' van de Schelde: de abiotiek van het Schelde-estuarium
Provedor de dados: 27
Autores: Van Damme, S.; De Winder, B.; Ysebaert, T.J.; Meire, P.
The Scheldt estuary is a vast ecosystem in which powerful natural forces prevail. Tidal action is a key element in the functioning of the estuary. The combination of tide and discharge results in a salinity gradient that is characterized by strong variations in the brackish part. The estuary is a highly turbidsystem. The load of suspended solids is determined by acomplex mix of factors. The dynamic interactions of the physicochemical and morphological parameters lead to a range of various habitats, with highly fluctuating conditions. This, together with the very heavy human impact, both morphological and chemical makes the estuary a very stressed environment in which the survival of plants and animals requires special adaptations.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic factors.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280694.pdf

&lt;i&gt;Comontocypris&lt;/i&gt; gen. nov., a marine interstitial new genus of the family Pontocyprididae (Crustacea: Ostracoda)
Provedor de dados: 27
Autores: Wouters, K.
&lt;i&gt;Comontocypris&lt;/i&gt; gen. nov., a new ostracod genus from the Comoros is described. It is the first fully described pontocypridid living in an interstitial environment. Its affinities with related genera and its systematical position are discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/254782.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt; : 17. Energy consumption in cysts and early larval stages of various geographical strains of &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Vanhaecke, P.; Lavens, P.; Sorgeloos, P.
Variations in dry weight, caloric content and ash content during cyst hatching and early larval development have been studied for various geographical strains of &lt;i&gt;Artemia&lt;/i&gt; . In general, decapsulated cysts contain 30 to 40% more energy than freshly hatched nauplii; for Chaplin Lake and Buenos Aires &lt;i&gt;Artemia&lt;/i&gt; this difference amounts to 57%. Ash contents increase as decapsulated cysts hatch into instar I and molt into instar II-III nauplii. Over a 24h larval developmental period individual dry weights and energy content of the nauplii decrease with 16-34% and 22-37% respectively.A small but significant correlation exists between the survival rate of starved nauplii and either the energy content of instar I and instar II-III...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Energy budget; Larval stages; Artemia.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/261926.pdf

Impact of starvation and of feeding algal and artificial diets on the lipid content and composition of juvenile oysters &lt;i&gt;(Crassostrea gigas)&lt;/i&gt; and clams &lt;i&gt;(Tapes philippinarum)&lt;/i&gt;
Provedor de dados: 27
Autores: Caers, M.; Coutteau, P.; Sorgeloos, P.
The present study evaluated the effect of starvation and of feeding various algal and lipid-supplemented diets on the lipid content and lipid class distribution in the polar and neutral lipids of early juvenile oysters (&lt;i&gt;Crassostrea gigas&lt;/i&gt; and clams (&lt;i&gt;Tapes philippinarum&lt;/i&gt;). &lt;i&gt;T. philippinarum&lt;/i&gt; was starved, fed a mixed algal diet (&lt;i&gt;Tetraselmis suecica&lt;/i&gt; and &lt;i&gt;Isochrysis galbana&lt;/i&gt; (clone T-iso) or solely &lt;i&gt;T. suecica&lt;/i&gt; at three different feeding rations, either supplemented or not supplemented with lipid emulsions. &lt;i&gt;C. gigas&lt;/i&gt; was fed &lt;i&gt;T. suecica&lt;/i&gt; with and without the supplementation of lipid emulsions or liposomes. When...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical analysis; Feeding experiments; Juveniles; Lipids; Starvation; Crassostrea gigas [Portuguese oyster]; Isochrysis galbana.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2679

&lt;i&gt;Psammonema&lt;/i&gt; gen. n. and &lt;i&gt;Pseudochromadora&lt;/i&gt; Daday, 1889 (Nematoda, Desmodoridae) from sandy sediments of Gazi, Kenya
Provedor de dados: 27
Autores: Verschelde, D.; Vincx, M.
Three new species (&lt;i&gt;Psammonema ovisetosum&lt;/i&gt; gen. et sp. n., &lt;i&gt;Pseudochromadora coomansi&lt;/i&gt; sp. n.and &lt;i&gt;Pseudochromadora buccobulbosa&lt;/i&gt; sp. n.; including all juvenile stages) belonging to a known and to a new genus of the family Desmodoridae (Nematoda, Desmodoroidea) were found in sandy sediments of the intertidal zone in front of the estuarine mangroves of Gazi, Kenya. &lt;i&gt;Psammonema&lt;/i&gt; gen. n. differs from &lt;i&gt;Pseudochromadora&lt;/i&gt; Daday, 1889 in shape and number of somatic setae in pharyngeal region, in position and shape of lateral alae, and in the anterior position of the amphids on the head capsule. Comments are given on the ecto-symbiotic organisms, feeding habits of the species and...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/217165.pdf

Improvements in the decapsulation of &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Bruggeman, E.; Baeza-Mesa, M.; Bossuyt, E.; Sorgeloos, P.
As described in our previous paper (Sorgeloos et al. , 1977) hypochlorite can be used as reactive agent to dissolve the lipoproteic chorion of &lt;i&gt;Artemia&lt;/i&gt; cysts. Two commercial products are available worldwide, i.e. bleaching powder, chloride of lime Ca(OCL)&lt;sub&gt;2&lt;/sub&gt; and bleaching water NaOCl solutions. In Western Europe the latter product is the cheapest, whereas in the USA and Southeast Asia bleaching powder should be considered. Because the decapsulation process is a much more critical operation with bleaching powder, especially with regard to the viability of the embryos (Bruggeman et al., in preparation; Manzi, personal communication), we studied the use of technical NaOCl solutions in detail.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Artemia.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3623

Nematode assemblages of deep-sea and shelf break sites in the North Atlantic and Mediterranean Sea
Provedor de dados: 27
Autores: Soetaert, K.; Heip, C.H.R.
The nematode community structure of several shelf break and deep-sea stations in the North Atlantic and the Mediterranean is compared using data from the literature. Samples from 2 Mediterranean deep-sea canyons have a unique fauna of predatory and scavenging nematodes (e.g. &lt;i&gt;Synonchiella, Halichoanolaimus, Gammanema&lt;/i&gt;) which comprise some 20 to 30% of the community, while some of the typical deep-sea genera (&lt;i&gt;Theristus, Acantholaimus&lt;/i&gt;) are only marginally present. The nematode generic composition of the other sites reveals a gentle transition from the shelf break (Bay of Biscay; Mediterranean) over the slope (Mediterranean) towards the continental rise, abyssal plain and hadal depths (Bay of Biscay, Puerto Rico Trench,...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8457

New developments in the mass culture and nutritional enrichment of the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; using artificial diets
Provedor de dados: 27
Autores: Komis, A.; Naessens, E.; Van Ballaer, E.; Van Sprang, P.; Léger, P.; Sorgeloos, P.
A research program was carried out to improve and facilitate rotifer (&lt;i&gt;Brachionus plicatilis&lt;/i&gt;) culturing as well as to assure their optimal nutritional quality as a prey, concentrating on the development of a dry and complete rotifer diet that does not require the use of algae and does result in a HUFA rich &lt;i&gt;Brachionus&lt;/i&gt;. The present poster provides results dealing with culture aspects and rotifer nutritional quality. Different diet compositions based on single cell proteins enriched with various nutritional additives were evaluated. Results obtained so far demonstrate that a selected formula of a combined culture and enrichment diet, that does not involve the use of microalgae at all, can be successfully used for growing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Diets; Food organisms; Mass culture; Nutritive value; Brachionus plicatilis.
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/262326.pdf

Faunal diversity of the benthic amphipods (Crustacea) of the Magellan region as compared to the Antarctic (preliminary results)
Provedor de dados: 27
Autores: De Broyer, C.; Rauschert, M.
To investigate the marine benthic ecosystems of the Magellan region and to compare them with the better known Antarctic systems, three campaigns were recently carried out in this area: the Joint Magellan 'Victor Hensen' Campaign 1994, the 'Polarstern' ANT XIII/4 cruise 1996, and the 'Vidal Gormaz' CIMAR FIORDO II cruise 1996. Numerous and diverse zoobenthos samples were collected mostly with an Agassiz trawl and with a small dredge, an ephibenthic sledge, with baited traps or by diving. All gears together gathered more than 132,000 specimens of gammaridean and caprellidean amphipods. 137 species of gammaridean amphipods have been identified from the material to date. About 20% of these species appear to be new for science. This taxonomic work takes place...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists New species Species diversity Straits Taxonomy Zoobenthos Amphipoda [amphipods] Caprellidae Crustacea [crustaceans] Gammaridea PSW; Antarctica PSW; Chile; Magellan Straits.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/256159.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt;: 55. Cyst membrane protein composition as a discriminant character in the genus &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Abatzopoulos, T.J.; Triantaphyllidis, G.; Beardmore, J.A.; Sorgeloos, P.
Isolated embryonic membranes (i.e. the outer cuticular membrane, the fibrous layer, the inner cuticular membrane and the hatching membrane) and homogenates of incubated, decapsulated cysts of 16 populations from five &lt;i&gt;Artemia&lt;/i&gt; species (Crustacea, Anostraca) were examined by sodium dodecyl-sulphate polyacrylamide gel electrophoresis. Characteristic differences in major polypeptides between 45 and 205 kD were seen. These differences might be used as markers for identification of different &lt;i&gt;Artemia&lt;/i&gt; species. The validity of this approach in characterizing &lt;i&gt;Artemia&lt;/i&gt; populations is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2920

Etudes hydrobiologiques sur les eaux saumâtres de Belgique: XI. Etude d'un bassin maritime dans le port d'Ostende. B Etude du plankton. C. Conclusions
Provedor de dados: 27
Autores: Van Meel, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydrobiology Plankton ANE; Belgium; Oostende Harbour.
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/291157.pdf

The effect of dietary n-3 HUFA and 22:6n-3/20:5n-3 ratio on white shrimp larvae and postlarvae
Provedor de dados: 27
Autores: Wouters, R.; Van Hauwaert, A.; Naessens, E.; Ramos, X.; Pedrazzoli, A.; Lavens, P.
The influence of varying dietary n-3 HUFA concentrations and ratios of 22:6n-3/20:5n-3 (DHA/EPA) on culture performance and fatty acid composition of white shrimp (&lt;i&gt;Penaeus vannamei&lt;/i&gt;) larvae and postlarvae was verified in two experiments. In a first experiment, shrimp (zoea 2-postlarvae 11) were fed rotifers (&lt;i&gt;Brachionus plicatilis&lt;/i&gt;) and &lt;i&gt;Artemia&lt;/i&gt; spp. nauplii that were enriched with different self-emulsifying concentrates: one HUFA-free coconut oil (T1), and three iso-HUFA concentrates with DHA/EPA ratios of 0.6 (T2), 2 (T3) and 4 (T4), respectively. In a second experiment, postlarvae were fed for 25 days (starting from postlarvae 10) on isolipidic semi-purified diets: one HUFA-free control (TA), and four...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2987

Monitoring Biolog patterns and &lt;i&gt;r/K&lt;/i&gt;-strategists in the intensive culture of &lt;i&gt;Artemia&lt;/i&gt; juveniles
Provedor de dados: 27
Autores: Verschuere, L.; Dhont, J.; Sorgeloos, P.; Verstraete, W.
&lt;i&gt;Artemia&lt;/i&gt; juveniles were cultured under intensive conditions in three series of six tanks at different times. Both plate counts and Biolog GN microtitre plates were used to monitor the microbial community. Repetitions of the &lt;i&gt;Artemia&lt;/i&gt; cultures in time revealed significant differences in Biolog patterns and bacterial counts, showing that normal culture practices, including chlorination of the sea water, does not allow control of the associated microbial community. However, the similarity among the Biolog fingerprints of all 18 tanks as determined by the Pearson correlation coefficient was always high. Both observations together indicate that the microbial community which colonizes the culture tanks seems to be determined by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2985

Behaviour of heavy metals in a mud flat of the Scheldt estuary, Belgium
Provedor de dados: 27
Autores: Panutrakul, S.; Baeyens, W.F.J.
The Ballasplaat intertidal mud flat in the Scheldt estuary has been polluted by Cd and Pb and also high amounts of organic matter as a result of suspended matter deposition. The degree of pollution is, however, not uniform over the mud flat due to varying physico-chemical conditions (essentially variable redox profiles). Measurements of the redox profile, and the metal concentrations in the pore water, the total sediment and the fraction &lt;63 µm combined with sequential extraction results and enrichment factors can explain the behaviour of Cd, Pb, Fe and Mn in the sediments. In a strong anoxic sediment, where sulphate reducing bacteria are active, the heavy metals are trapped as poorly soluble metal complexes while in an oxic or suboxic sediment metals...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cadmium Chemical reactions Estuaries Iron Lead Manganese Marine pollution Mud flats Physicochemical properties Sediment chemistry Sediment pollution Sediments ANE; Netherlands; Westerschelde; Ballastplaat.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3112

The effect of broodstock diet on reproductive activity and offspring quality in the marine crustacean &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (M.)
Provedor de dados: 27
Autores: Léger, P.; Ferraz de Queiroz, J.; Sorgeloos, P.
This paper describes the first results of a study on the effects of broodstock nutrition on reproduction in marine crustaceans. For this, a short-term test system has been developed with the estuarine mysid shrimp &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (M.) as experimental animal. Three different &lt;i&gt;Artemia&lt;/i&gt; preparations were evaluated for their possible effects on reproductive activity and offspring quality: a commercial maturation diet (Marila) incorporated in Great Salt Lake &lt;i&gt;Artemia&lt;/i&gt; metanauplii was compared to freshly-hatched nauplii and coconut-oil enriched metanauplii as food sources for the experimental broodstock animals. Within an experimental period of 14 days after reaching sexual maturity, 3.4 respectively 8.8...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reproduction; Mysidopsis bahia.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3183

Distribution of particulate trace elements in the Northeastern Atlantic
Provedor de dados: 27
Autores: Dauby, P.; Baeyens, W.F.J.; Biondo, R.; Bouquegneau, J.-M.; Chou, L.; Collette, O.; Dehairs, F.A.; Elskens, M.; Frankignoulle, M.; Loijens, M.; Paucot, H.; Wollast, R.
From 1989 to 1992, five cruises were conducted in an area covering the English Channel, the Celtic Sea and the Gulf of Biscay. During these campaigns, suspended matter was collected by different techniques in order to analyze the spatial and vertical distribution of several particulate trace elements in relation to the global biogeochemical cycle of carbon. It appears that horizontal distribution varies strongly from one element to another and is mainly influenced either by  anthropogenic and terrigenous inputs or by scavenging processes. On the other hand, the vertical distribution seems mainly linked to the primary production. In parallel to these trace element measurements, experiments were carried out to estimate the transfer rates of these elements...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2680

Diets of abundant fishes from beach seine catches in seagrass beds of a tropical bay (Gazi Bay, Kenya)
Provedor de dados: 27
Autores: De Troch, M.; Mees, J.; Wakwabi, E.O.
The composition of the diet of 14 fish species that were common in beach seine catches over the seagrass beds of Gazi Bay (Kenya) was investigated. Three trophic guilds could be distinguished based on dietary diversity and on the numerical and gravimetrical composition of the diet. &lt;i&gt;Herklotsichthys quadrimaculatus, Stolephorus indicus&lt;/i&gt; and &lt;i&gt;Atherinomorus duodecimalis&lt;/i&gt; were planktivores. Their stomach fullness index was low and the diet was not diverse. The main food items were harpacticoid and calanoid copepods and brachyuran zoea and megalopae. &lt;i&gt;Apogon thermalis, Fowleria aurita, Paramonacanthus barnardi, Mulloides flavolineatus, Lutjanus fulviflamma, L. argentimaculatus&lt;/i&gt; and &lt;i&gt;Gerres...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding behaviour Fish Sea grass Trophic structure Apogon thermalis Atherinomorus duodecimalis [tropical silverside] Bothus myriaster [oval flounder] Fistularia commersonii Fowleria aurita [Crosseyed cardinalfish] Gerres acinaces [Longtail silver biddy] Herklotsichthys quadrimaculatus Lutjanus argentimaculatus Lutjanus fulviflamma Mulloides flavolineatus [yellowstripe goatfish] Paramonacanthus barnardi [wedgetail filefish] Plotosus lineatus [striped eel catfish] Sphyraena barracuda [great barracuda] Stolephorus indicus [Indian anchovy] ISW; Kenya; Gazi Bay.
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/316159.pdf

Composition, transport and origin of sediments in the Schelde estuary
Provedor de dados: 27
Autores: Wartel, S.
The grain-size characteristics (grain-size distribution, comparison of one percent value (C) of a given grain-size distribution with the median value (M) in so-called CM-patterns, silt/clay ratio's) of the Schelde estuary are distributed in relation to the existence of a turbidity maximum. Fine sand, silt and clay are deposited, while fluid mud occurs. Towards the North Sea, as well as in an upstream direction, the sediments become much coarser. Silt, clay and part of the sand are derived from the river drainage basin. Sands are also brought into the estuary from the North Sea. Flocculation is important as a depositional agent. However, deflocculation in a seawards direction, favouring seawards transport of silt and clay particles, is assumed. Movement of...
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3574

Les cultures moulière et huîtrière dans les eaux belges
Provedor de dados: 27
Autores: Verschelde, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mussel culture Oyster culture ANE; Belgium.
Ano: 1936
URL: http://www.vliz.be/imisdocs/publications/333788.pdf

The macrozoobenthos of an important wintering area of the common scoter (&lt;i&gt;Melanitta nigra&lt;/i&gt;)
Provedor de dados: 27
Autores: Degraer, S.; Vincx, M.; Meire, P.; Offringa, H.
In October 1994, 39 macrobenthic samples, divided between two areas, were taken on the western Belgian Coastal Banks. The two areas could not be clearly divided, concerning their macrobenthic communities. Multivariate techniques revealed five coherent communities, linked with typical sedimentological factors: (1) the &lt;i&gt;Barnea candida&lt;/i&gt; community in a very compact muddy sediment (median 14 µm); (2) a second community characterized by the presence of spat of &lt;i&gt;Mytilus edulis&lt;/i&gt;, With a medium sandy sediment (median 456 µm); (3) the &lt;i&gt;Lanice conchilega&lt;/i&gt; community inhabiting a fine sandy sediment (median 211 µm); (4) the &lt;i&gt;Nephtys cirrosa-Echinocardium cordatum&lt;/i&gt; community in a coarser fine sandy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Melanitta nigra ANE; Belgium.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7324

The meiofauna: macrofauna ratio across the continental slope of the Goban Spur (north-east Atlantic)
Provedor de dados: 27
Autores: Flach, E.; Vanaverbeke, J.; Heip, C.H.R.
Meio- and macrofauna density and biomass were estimated at the OMEX-transect across the continental slope of the Goban Spur at water depths ranging from 208 to 4460 m in the north-east Atlantic. A linear increase in the ratio between meio- and macrofauna densities with increasing water depth was found. At the continental shelf meiofauna densities were similar to 50 times higher than macrofauna densities, whereas in the abyss meiofauna densities were more than 1000 times higher. This change in ratio was due to a significant decrease in macrofauna densities with increasing water depth, whereas the meiofauna densities staved more or less at the same level. The ratio in biomass between meio- and macrofauna showed a dip at similar to 1000 m. At this depth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Sediment; Sites; Spectra; Nematoda [Nematodes].
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7325

1&lt;sup&gt;e&lt;/sup&gt; Internationaal Congres van de Zee, Oostende 11, 12, 13 en 14 september 1936: verslagen = 1&lt;sup&gt;ier&lt;/sup&gt; Congrès International de la Mer, Ostende, 11, 12, 13 et 14 septembre 1936: rapports
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Ano: 1936
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7678

The Newman method, modified for the estimation of the total thallus length of filamentous algae
Provedor de dados: 27
Autores: Gillis, J.
Newman's (1966) method of total root length estimation is modified and adapted to measure total length of filamentous algae in culture (i.c. &lt;i&gt;Polysiphonia&lt;/i&gt;). This method makes possible a measurement and an estimation of the growth of the algae in culture without disturbing them. The petri dishes are placed on a 1x1 mm grid and the filament/grid intersections are counted. Total filament length (T) is given by T = Pi N (LxW)/4(LxW), with N = the number of intersections, L = the length and W = width of area in which the thallus is situated. Total filament length of &lt;i&gt;Polysiphonia&lt;/i&gt; in culture estimated by the Newman method is compared with camera lucida measurements. The correlation between the results obtained by the 2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae; Measurement; Thallus.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3254

North Sea aerosol characterization by single particle analysis techniques
Provedor de dados: 27
Autores: Van Malderen, H.; De Bock, L.A.; Injuk, J.; Xhoffer, C.; Van Grieken, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2794

Production of &lt;i&gt;Tachidius discipes&lt;/i&gt; (Copepoda: Harpacticoida)
Provedor de dados: 27
Autores: Herman, P.M.J.; Heip, C.H.R.; Guillemijn, B.
The secondary production of the harpacticoid copepod &lt;i&gt;Tachidius discipes&lt;/i&gt; Giesbrecht 1881 was estimated during spring 1979. The population was sampled every 3 d. Three generation peaks were observed. These were clearly distinct in the first copepodite stages, but gradually showed more overlap in older stages. Production of copepodites and adults was estimated in 2 ways: (1) Peaks were separated and the forward shifting of peaks in consecutive stages was used to estimate stage durations; (2) the size frequency method was applied. Both estimates of the production of copepodites and adults are in good agreement: 1.10 g dwt m&lt;sup&gt;-2&lt;/sup&gt; and 1.02 g dwt m&lt;sup&gt;-2&lt;/sup&gt;. Egg production amounts to 0.31 g dwt...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Secondary production Tachidius discipes Giesbrecht; 1881.
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/238548.pdf

Ecological approach of macro-fouling prevention and control in cooling systems
Provedor de dados: 27
Autores: Denayer, B.; De Ranter, K.; Van Poele, J.; Ollevier, F.P.
Biofouling is a very frequent and serious problem in the cooling systems of electrical power stations. An investigation is being carried out at the Doel nuclear power station to discover ways of combating micro-fouling. Micro-fouling is combated preventively and curatively using a combination of chlorine, biofilm wetting agent and dispersing agent. This treatment removes the slime layer, which can act as a primary attachment point for macro-organisms.In the study of the macro-fouling in the cooling circuits, a monitoring method was developed which uses artificial substrates to provide direct data on the colonization and growth of these organisms. On the basis of the data obtained, the treatment frequency for the prevention or combating of biofouling was...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2746

Wind en golven: onderzoek van een optimaliserings-benadering voor het schatten van parameters in de brontermen = Wind and waves: investigation of an optimization approach to parameter estimation
Provedor de dados: 27
Autores: Monbaliu, J.
The atmosphere sees the ocean, with sometimes huge waves, as a much smoother surface, compared to its passage over land where it is slowed down much more, even if obstacles are small compared to the size of ocean waves. A good observer notices right away that waves travel with the wind and consequently do not give much resistance. The details of how much resistance there actually is and its variation with wind speed and parameters defining the wave conditions has been a hot topic for the last 35 years. The correctness of the roughness formulation is a crucial question in the understanding of the air-sea interface. It has major implications in wave modelling, in storm surge modelling and also in modelling of the atmospheric boundary layer above the ocean....
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Wave dissipation; Whitecapping; Wind wave generation; Wind wave parameters; Wind waves.
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/226617.pdf

Mode of infection and spread of &lt;i&gt;Vibrio anguillarum&lt;/i&gt; in turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; larvae after oral challenge through life feed
Provedor de dados: 27
Autores: Grisez, L.; Chair, M.; Sorgeloos, P.; Ollevier, F.P.
The infection route of the marine fish pathogen &lt;i&gt;Vibrio anguillarum&lt;/i&gt; was studied after oral challenge of the juvenile turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; L. through a life feed. &lt;i&gt;Artemia&lt;/i&gt; nauplii were incubated in a suspension of &lt;i&gt;V. anguillarum&lt;/i&gt; cells, and subsequently fed twice to the fish. All challenged fish died within 4d after the first challenge, while no mortality occurred in the non-challenged controls. The results of an immunohistochemical examination of the sectioned fish samples clearly demonstrated that &lt;i&gt;V. anguillarum&lt;/i&gt; cells were ingested by the &lt;i&gt;Artemia&lt;/i&gt; and that the latter were ingested by the fish. Bacteria were released from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758) Vibrio anguillarum.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/299074.pdf

Aspects of the life-cycle of &lt;i&gt;Monhystera parelegantula&lt;/i&gt; (Nematoda; Monhysteridae)
Provedor de dados: 27
Autores: Vranken, G.; Thielemans, L.K.; Heip, C.H.R.; Vandycke, M.
&lt;i&gt;Monhystera parelegantula&lt;/i&gt; (De Coninck,1943) was collected from the sediment of the Sluice-dock, a euhaline-polyhaline lagoon near the harbour of Ostend (Belgium). The species was cultivated in large numbers on a bacto-agar medium with bacterial growth. Embryonic growth was studied at 30 °C and 30 promille S. Maximum embryonic length-growth occurs at the vermiform stage. Post-embryonic length-growth, studied at 25 °C and 30 promille S, is a linear function of time and may be expressed as l = 160.46 + 29.55(t-t&lt;sub&gt;o&lt;/sub&gt;), where t&lt;sub&gt;o&lt;/sub&gt; = time at the beginning of development; t and l = time (d) and length (µm). At 25 °C and 30 promille S, average embryonic development time and generation time are 4 and 9 d...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle Monhystrella parelegantula ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3410

Komt &lt;i&gt;Porphyra purpurea&lt;/i&gt; (Roth) (Bangiales) aan de Belgische kust in situ voor?
Provedor de dados: 27
Autores: Janssen, C.
Tipo: Info:eu-repo/semantics/article
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7431

Projekt Zee eindverslag: 6. Inventaris van de polluenten = Projet Mer rapport final: 6. Inventaire des polluants
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Elskens, I.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/140755.pdf

Essai de bilan annuel du transfer de l'azote dans le bassin de chasse d'Ostende: 1. Utilisation de l'azote par le phytoplankton et le phytobenthos
Provedor de dados: 27
Autores: Podamo, J.
As nutrients are withdrawn from the environment in the proportions required for the growth of primary producers, the C/N ratio known from the literature provides a stoechiometric basis for evaluating the uptake of nitrogen resulting from phytoplankton and phytobenthos activity. This activity has been measured respectively by &lt;sup&gt;14&lt;/sup&gt;CO&lt;sub&gt;2&lt;/sub&gt; incorporation and O&lt;sub&gt;2&lt;/sub&gt; production in &lt;i&gt;in situ&lt;/i&gt; and&lt;i&gt; in vitro&lt;/i&gt; experiments. The production of the phytoplankton community for the period considered (6 months) amounts to 112 g C/m². That of phytobenthos might well be one third of this amount (37 g C/m²). Therefore, nitrogen uptake would have been 14 g and 4 g C/m². As the yearly...
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3485

Long-term evolution of the meiofauna at a sandy station in lake Grevelingen, the Netherlands
Provedor de dados: 27
Autores: Willems, K.A.; Sharma, Y.; Heip, C.H.R.; Sandee, A.J.J.
Data on density, diversity and species number of harpacticoids and nematodes from a 3 m deep station in Lake Grevelingen are reported over the period 1975-1980. Vertical distribution of both copepod and nematodes densities are added. Over the 6 years period 95 species of nematodes and 26 species of harpacticoids have been identified. Neither diversity nor species number of harpacticoids changed significantly over the period. Nematode diversity and species number showed considerable changes, and especially the species composition evolved drastically over the years. The changes in feeding types among nematodes are discussed. Densities of both copepods and nematodes changed substantially over the 6 years period. Concurrent with a significant rise of the redox...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos Population density Population dynamics Species diversity Vertical distribution Copepoda [copepods] Harpacticoida Nematoda [Nematodes] ANE; Netherlands; Grevelingen L.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3278

Effect of organic complexation on the behaviour of dissolved Cd, Cu and Zn in the Scheldt estuary
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Goeyens, L.; Monteny, F.; Elskens, I.
Samples from the Scheldt estuary have been assayed for dissolved Cd, Cu and Zn using differential pulse anodic stripping voltammetry, either as total (after UV irradiation) or labile concentrations. Under these experimental conditions, labile concentrations ranged between 51-65% of total Cu, 16-66% of total Zn and 53-91 % of total Cd. The metal-organic interactions were assessed by evaluating (a) the distribution coefficient K&lt;sub&gt;d&lt;/sub&gt; for the distribution of the metals between the liquid phase (complexation) and their binding to particulate matter, and (b) the competitive effect exerted by inorganic complexing ligands using a multi-element interaction model. The proportion of organically bound metals (strong and labile) was estimated, in...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7051

North Sea spawning grounds of the sole (&lt;i&gt;Solea solea&lt;/i&gt;) located from the 1984 Belgian plankton survey
Provedor de dados: 27
Autores: Borremans, C.
During spring 1984 large ichthyoplankton surveys were performed to determine the spawning period and the spawning places of the sole in the Southern Bight of the North Sea. In March and April most eggs were found close to the Belgian coast and the coast of Brittany, which agrees with results of previous plankton surveys. In the second of the surveys, however, high densities were also found at stations about 50 km from the coast -in the open sea. An attempt is made to explain whether these early eggs were laid in the locality, contrary to what is normally accepted, or drifted there from the Belgian or the English coast.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plankton surveys Spawning grounds Solea solea [Sole] ANE; Belgium; Belgian Coast ANE; British Isles; England; English Coast ANE; North Sea; Southern Bight.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3229

Roles and potentials of &lt;i&gt;Artemia&lt;/i&gt; in coastal saltworks
Provedor de dados: 27
Autores: Sorgeloos, P.; Tackaert, W.
The recent developments in aquaculture production of fish and shrimp have resulted in increased demands for &lt;i&gt;Artemia&lt;/i&gt; cysts and biomass as valuable sources of life food. Solar salt works are suitable biotopes for the integrated exploitation of salt, &lt;i&gt;Artemia&lt;/i&gt; and eventually fish or shrimp. &lt;i&gt;Artemia&lt;/i&gt; may be present as a natural resource in local saltworks; however in some situations characteristics of the endemic strain might justify the introduction of another &lt;i&gt;Artemia&lt;/i&gt; species to increase productivity.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2861

Allocation of the Mantridae Leigh-Sharpe to the Cyclopoida (Crustacea: Copepoda) with notes on &lt;i&gt;Nearchinotodelphys&lt;/i&gt; Ummerkutty
Provedor de dados: 27
Autores: Huys, R.
&lt;i&gt;Mantra speciosa&lt;/i&gt; Leigh-Sharpe, 1934 (ex Poecilostomatoida) collected during the Siboga Expedition is redescribed on the basis of the holotype female. The 15-segmented antennule and the gnathostomous nature of the mouthparts exclude the Mantridae from the Poecilostomatoida and point to a relationship with the tunicate-infesting families Ascidicolidae, Notodelphyidae and Archinotodelphyidae (Cyclopoida). &lt;i&gt;Nearchinotodelphys indicus&lt;/i&gt; Ummerkutty, 1960 (ex Archinotodelphyidae) is transferred to the Mantridae. It is suggested that the bivalve-inhabiting mantrids have diverged from the ascidicolous lineage leading to the Notodelphyidae and Ascidicolidae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy Copepoda [copepods] Crustacea [crustaceans] Cyclopoida Nearchinotodelphys indicus Ummerkutty; 1960.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7171

Trend analysis of the published concentrations of heavy metals in aerosols above the North Sea and the English Channel for the period 1971-1994
Provedor de dados: 27
Autores: Hoornaert, S.; Treiger, B.; Van Grieken, R.; Laane, R.W.P.M.
A literature review is given of atmospheric trace metal concentrations in aerosols above the North Sea and the English Channel over the period 1971-1994. Literature data have been gathered and intercompared to look for possible trends in the reported concentrations. Six trace metals are considered: Cd, Cu, Pb, Zn, Ni, and Cr. A distinction is made between measurements in different regions of the North Sea, and between coastal and marine areas. The majority of the data deals with the Southern Bight, providing the most reliable trends. Strong decreasing trends are observed for the Pb and Zn concentrations above the North Sea during the years 1971-1994. For Cd, Cu, Ni, and Cr, much less data are available in the literature. Despite this, also for Cd and Cu a...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8158

Carbon flows through meiobenthic nematodes in the Westerschelde Estuary
Provedor de dados: 27
Autores: Li, J.; Vincx, M.; Herman, P.M.J.
A time dynamic model was used to estimate carbon flows through nematodes in an intertidal benthic ecosystem in the Westerschelde Estuary, The Netherlands. The model calibrated the nematode biomass observed from March 1991 to February 1992. The forcing functions of the model included meiobenthos biomass, macrobenthos biomass, bacterial density, chlorophyll-a concentration, and other abiotic data such as temperature and day length. We estimate that the nematode population had a low level of standing stock 249 mg C m(-2), but a high level of carbon flow. It consumed 98 mg C m(-2) d(-1) and produced 22 mg C m(-2) d(-1). Defecation was 73 mg C m(-2) d(-1). Losses in respiration, excretion and natural death were only 3 mg C m(-2) d(-1). The annual P/B was 32 for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Degradation; Ecology; Marine nematodes; Meiobenthos; Respiration.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7296

Wind wave modelling in shallow water: with application to the southern North Sea
Provedor de dados: 27
Autores: Luo, W.
Increased marine activities, particularly in areas of off-shore exploitation and coastal development, have created an urgent need for improved knowledge of wave conditions in the shallow near-shore regions. In this work, objectives have been made to investigate the effects of bottom friction, depth-induced wave breaking, and tidal motions on the wave evolution in shallow water, and to apply the wave model (WAM Cycle 4) to the Belgian coastal waters. Firstly, the effects of different bottom friction formulations on the energy balance equation were quantitatively investigated for fetch-limited shallow water conditions. It was found that the formulation of the bottom friction dissipation has a quite significant effect on the energy balance at shallower water...
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Bottom friction Modelling Numerical models Shallow water Wave breaking Wave predicting Wind waves ANE; Belgium; Belgian Coast.
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/226695.pdf

Energetic aspects of the metabolism of hydrated &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Benijts, F.; Vandeputte, G.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3558

Un nouveau genre de Peyssonneliaceae, &lt;i&gt;Metapeyssonnelia&lt;/i&gt; (Rhodophyta)
Provedor de dados: 27
Autores: Boudouresque, C.F.; Coppejans, E.; Marcot, J.
&lt;i&gt;Metapeyssonnelia&lt;/i&gt;, a new genus of the Peyssonneliaceae (Rhodophyta), is described. This encrusting orbicular alga is completely calcified by aragonite. Small unicellular rhizoids are present. The centre of the thallus shows a &lt;i&gt;Peyssonnelia&lt;/i&gt;-like structure that metamorphes towards the margins of older thalli: in these metamorphosed parts, an inferior perithallus is generated downwards. Each hypothallic cell gives rise to only one coxal cell, even in the metamorphosed parts: this characteristic distinguishes the structure of &lt;i&gt;Metapeyssonnelia&lt;/i&gt; from that of &lt;i&gt;Polystrata&lt;/i&gt;. The type species is &lt;i&gt;M. feldmannii&lt;/i&gt; nov. sp., collected at Port-Cros island (Mediterranean, France).
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3544

The influence of temperature and salinity on the sensitivity of &lt;i&gt;Artemia&lt;/i&gt; nauplii to chemical compounds
Provedor de dados: 27
Autores: Persoone, G.; Van Steertegem, M.
The toxicity of chemicals to aquatic organisms is mostly determined in a set of experimental conditions which are close to optimal for the test species. Because in nature organisms have to cope with fluctuating environmental conditions which can range during the course of the year from optimal to suboptimal, up to the limits of the tolerance range, the conditions under which routine bioassays are normally performed do, however, not reflect the large range of situations occurring in the field. Considering the scarcity of information on the effect of fluctuating environmental conditions on the sensitivity of test species to toxicants, a comparative laboratory study has been undertaken to determine the combined influence of environmental variables on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3746

Contributions à l'étude de la faune belge: VIII. Les dégâts causés par le ver polychète &lt;i&gt;Polydora ciliata&lt;/i&gt; (Johnston) dans les coquilles des bigorneaux et des huîtres
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parasites Polydora ciliata (Johnston; 1838) [Bristleworm] ANE; Belgium.
Ano: 1937
URL: http://www.vliz.be/imisdocs/publications/294327.pdf

Een geïntegreerd onderzoek van zandsuppleties als kustverdediging: toepassing voor de Belgische Oostkust
Provedor de dados: 27
Autores: Huygens, M.
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Beach nourishment Coast defences Modelling Sediment transport ANE; Belgium; East Coast.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/226821.pdf

Stygofauna of the Canary Islands: 11. &lt;i&gt;Boxshallia bulbantennulata&lt;/i&gt; gen. et spec. nov. (Copepoda: Misophrioida) from an anchihaline lava pool on Lanzarote, Canary Islands
Provedor de dados: 27
Autores: Huys, R.
A new genus and species of misophrioid copepod is described from an anchihaline lava pool on Lanzarote, Canary Islands. Boxshallia bulbantennulata gen. et spec. nov. lacks any trace of a carapace, possesses a genital double somite, and can be distinguished from other misophrioids by the presence of a bulb-shaped process on the first antennular segment, the loss of the inner coxal spine in leg 1 and the presence of 3 setae on the mandibular basis. The new genus also exhibits many plesiomorphic features such as the 27-segmented antenulla and the biramous leg 5 with a 2-segmented protopod and a well developed intercoxal sclerite in the female. On the basis of urosome segmentation and gonopore location, the holotype of Dimisophria cavernicola Boxshall &amp;...
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7048

Intensive marine fish farming in Europe: a state of the art
Provedor de dados: 27
Autores: Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3107

Literatuuronderzoek naar estuariene herstelmaatregelen
Provedor de dados: 27
Autores: van Oevelen, D.; Van den Bergh, E.; Ysebaert, T.; Meire, P.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Estuaries Habitats Recovery Rivers Water management Europe; Belgium.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7896

Population dynamics of brown shrimp (&lt;i&gt;Crangon crangon&lt;/i&gt;) in the Belgian coastal waters. 2. Predation mortality
Provedor de dados: 27
Autores: Redant, F.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Population dynamics Crangon crangon (Linnaeus; 1758) [Brown shrimp] ANE; Belgium; Belgian Coast.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/128841.pdf

Range extension and microhabitat of &lt;i&gt;Lightiella incisa&lt;/i&gt; (Cephalocarida)
Provedor de dados: 27
Autores: De Troch, M.; Fiers, F.; Vincx, M.
During an intensive meiofauna sampling campaign in intertidal seagrass beds along the Caribbean coast of the Yucatan Peninsula (Mexico), 131 specimens of &lt;i&gt;Lightiella incisa&lt;/i&gt; (Cephalocarida, Crustacea) were recovered from the sediment. Two-thirds of the specimens were adults, one-third were pre-adults. This collection is the first record of this minute primitive crustacean in the western part of the Caribbean Sea, and extends the known range 3000 km from the type locality of Hastings Bay, Barbados. A detailed sampling protocol and environmental data made it possible to study the microhabitat preferences of this species, and perhaps for cephalocarids in general for the first time. The vertical distribution of &lt;i&gt;L. incisa&lt;/i&gt; in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anoxic sediments Bioturbation Distribution records Ecological distribution Environmental factors Meiobenthos Microhabitats New records Vertical distribution Cephalocarida [horseshoe shrimp] ASW; Mexico; Yucatan Peninsula Mexico.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2097

Vulnerable concentrations of birds in the North Sea
Provedor de dados: 27
Autores: Tasker, M.L.; Pienkowski, M.W.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Birds; Counting; North sea; Water.
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/261572.pdf

Recruitment of meroplanktonic larvae in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Belgrano, A.; Vincx, M.; Dewarumez, J.-M.; Richard, A.; Craeymeersch, J.A.; Heip, C.H.R.
The density distribution of meroplanktonic larvae is compared with the density distribution of adults in the benthos, at five coastal stations in the Southern Bight of the North Sea (&lt;i&gt;Abra alba&lt;/i&gt; community). Plankton communities were sampled during one tidal cycle, along a buoy traject or at a fixed point; southern and northern locations, 250 m from each central sampling point, have been investigated too. Benthos samples were taken only at the central points of this traject. Meroplankton consisted of polychaete larvae (9 families) and bivalve and echinoderm larvae. The highest density values of these larvae (6,400 ind.10.25 m&lt;sup&gt;2&lt;/sup&gt;) are found on the southern sites of each traject (closest to the coastline). The highest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos Meroplankton Recruitment ANE; North Sea; Southern Bight.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7114

Comparative study of the hyperbenthos of three European estuaries
Provedor de dados: 27
Autores: Mees, J.; Fockedey, N.; Hamerlynck, O.
The hyperbenthic fauna of the subtidal channels of the Eems (N. Netherlands), Westerschelde (S.W. Netherlands), and Gironde (S.W. France) estuaries was sampled within a 15-day period in summer 1991. In each estuary, quantitative samples were taken at regularly spaced stations covering the entire salinity gradient from marine conditions at the mouth to nearly freshwater conditions upstream. The diversity of the samples and the distribution of the species along the main estuarine gradients were assessed. Hyperbenthic communities were identified using different multivariate statistical techniques. The species composition and the density and biomass of the dominant species of each community were compared among communities.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological sampling Biomass Community composition Comparative studies Ecological distribution Estuaries Population density Salinity gradients Zoobenthos Mysidacea ANE; Ems Estuary ANE; France; Gironde Estuary ANE; Netherlands; Westerschelde.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5647

Végétation marine de la Corse (Méditerranée): 6. Documents pour la flore des algues = Végétation marine de la Corse (Méditerranée): 6. Documents pour la flore des algues
Provedor de dados: 27
Autores: Coppejans, E.; Boudouresque, C.F.
Ten benthic marine algae are mentioned for the first time for Corsica: 1 Chrysophyceae, 1 Xanthophyceae and 8 Florideophyceae. Their geographical distribution and data on their morphology and anatomy are given. &lt;i&gt;Dasyopsis penicillata&lt;/i&gt; is studied in detail; its systematic position is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution New records Dasyopsis penicillata MED; France; Corsica.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3371

Host-parasite relationship in a brackish-water habitat
Provedor de dados: 27
Autores: Vaes, F.
A list is given of the trematode species which occur in a brackishwater habitat in the North of Belgium. The ecological implications of the different life-cycle-strategies are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater environment Hosts Parasitism Cerastoderma glaucum (Poiret; 1789) [Lagoon cockle] Hydrobia stagnorum (Gmelin; 1791) Littorina saxatilis (Olivi; 1792) [Rough periwinkle] ANE; Belgium.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3573

Low nutrient availability is not the single factor limiting &lt;i&gt;Artemia&lt;/i&gt; cyst productivity in salinas of NE-Brazil
Provedor de dados: 27
Autores: Camara, M.R.; Tackaert, W.
&lt;i&gt;Artemia&lt;/i&gt; production in NE-Brazil began in 1977 after a successful inoculation of &lt;i&gt;Artemia franciscana&lt;/i&gt; (San Fransisco Bay, California, USA) in solar salt ponds in Macau (RN state) and was followed by a rapid natural dispersion of this crustacean to all saltwork areas in the region. &lt;i&gt;Artemia&lt;/i&gt; is basically produced in extensive conditions as an opportunistic by-product collected from salt evaporation ponds. This type of approach has, however, brought about very unpredictable results, as is reflected in a drastic decline of cyst production occurring from 1982 onwards. Low nutrient concentrations and a drop in primary productivity have been suggested as possible causes for this decline. In order to provide a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Marine ecology; Artemia; Brazil.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2542

The arrest of ships in maritime zones beyond internal waters in Belgian maritime law
Provedor de dados: 27
Autores: Somers, E.
Opportunities may arise to arrest a ship in maritime zones beyond internal waters, e.g. in the territorial sea and the exclusive economic zone (EEZ). This paper examines the possibilities for arrest in those areas on the basis of jurisdiction &lt;i&gt;ratione loci&lt;/i&gt; and &lt;i&gt;ratione materiae&lt;/i&gt;. Under Belgian law the territorial sea is not part of the State's territory; accordingly, the Belgian Judicial Code does not provide for an attachment judge nor a bailiff to have jurisdiction in this area and &lt;i&gt;a fortiori&lt;/i&gt; in the EEZ. The law of April 22, 1999 solved the problem of territorial jurisdiction in this respect. As far as a ship's arrest in the EEZ is concerned, it is not clear whether the United Nations Law of the Sea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal states Exclusive economic zone Governments International law Jurisdiction Ocean policy Policies Surveillance and enforcement Territorial waters ANE; Belgium Belgium.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7386

The influence of a selected bacterial strain &lt;i&gt;Vibrio anguillarum&lt;/i&gt; TR 27 on the growth rate of rotifers in different culture conditions
Provedor de dados: 27
Autores: Shiri Harzevili, A.R.; Van Duffel, H.; Defoort, T.; Dhert, P.; Sorgeloos, P.; Swings, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2972

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichtyan fishes. Part A. Selachii. 2b: Order: Carcharhiniformes - Family: Scyliorhinidae
Provedor de dados: 27
Autores: Herman, J.; Hovestadt, D.C.; Hovestadt-Euler, M.
The tooth morphology of all the genera and subgenera of the Scyliorhinidae, with the unique exception of &lt;i&gt;Pentanchus&lt;/i&gt; (not available for examination), is described and illustrated. Several systematic considerations are given. The odontology of the genera &lt;i&gt;Centroscyllium&lt;/i&gt; and &lt;i&gt;Aculeola&lt;/i&gt;, which are rather aberrant among the Squaliforms, is compared with that of all the Scyliorhinidae taxa presently described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Centroscyllium; Teeth; Scyliorhinidae [cat sharks].
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/294442.pdf

First occurrence of the Pontocaspian invader &lt;i&gt;Hemimysis anomala&lt;/i&gt; (Sars, 1907) in Belgium (Crustacea: Mysidacea)
Provedor de dados: 27
Autores: Verslycke, T.; Janssen, C.R.; Lock, K.; Mees, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mysidacea Belgium; Zeeschelde; Galgenweel.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2678

Preliminary results on the nutritional evaluation of omega-3-HUFA-enriched &lt;i&gt;Artemia&lt;/i&gt; nauplii for larvae of the sea bass, &lt;i&gt;Dicentrarchus labrax&lt;/i&gt;
Provedor de dados: 27
Autores: Van Ballaer, E.; Amat, F.; Hontoria, F.; Léger, P.; Sorgeloos, P.
Freshly hatched San Pablo Bay and Great Salt Lake &lt;i&gt;Artemia&lt;/i&gt; nauplii (omega-3-HUFA-poor) and enriched meta-nauplii (omega-3-HUFA-enriched)were compared to reference &lt;i&gt;Artemia&lt;/i&gt; nauplii (omega-3-HUFA-rich) as a food source for the larvae of the sea bass, &lt;i&gt;Dicentrarchus labrax&lt;/i&gt;. Significant differences in survival and biomass production between the treatments could be attributed to the omega-3-HUFA content of the food. A delayed mortality in fish larvae fed the Great Salt Lake &lt;i&gt;Artemia&lt;/i&gt; is suspected to be caused by a high level of alpha-BHC in this &lt;i&gt;Artemia&lt;/i&gt; source. Growth was not significantly different between the treatments, most probably due to the large variation in growth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Fish culture; Fish larvae; Nutritive value; Artemia salina; Dicentrarchus labrax [Bass].
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/261899.pdf

Remote sensing and zonation of seagrasses and algae along the Kenyan coast
Provedor de dados: 27
Autores: Dahdouh-Guebas, F.; Coppejans, E.; Van Speybroeck, D.
Little information has been published on space-borne remote sensing of seagrasses, and no information is available about the distribution of seagrasses and algae in East Africa. Through satellite remote sensing this study investigates the distribution of these plants along a southern section of the Kenyan coast. The visible bands (red, green and blue) and the near infra-red band of a Landsat Thematic Mapper image acquired in 1992 were combined in order to detect seagrasses and algae in 10 sectors along the section of the coast. Ground trusting was done at three locations along the same section. Results indicate that two distinct zones of vegetation can be recognised, and ground trusting reveals their identity is rocky substrate with mostly algae and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coasts Distribution Ecological zonation Remote sensing Rocky shores Satellite sensing Sea grass Sea grasses Seaweeds Algae ISW; Kenyan Coast.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7748

Optimized feeding strategies in the larviculture of the Asian seabass &lt;i&gt;Lates calcarifer&lt;/i&gt;
Provedor de dados: 27
Autores: Dhert, P.; Duray, M.; Lavens, P.; Sorgeloos, P.
This paper reports on the progress made at the Tigbauan hatchery of SEAFDAC in the Philippines, with the larviculture of the Asian seabass &lt;i&gt;Lates calcarifer&lt;/i&gt; when using w3-HUFA enriched &lt;i&gt;Brachionus&lt;/i&gt; and &lt;i&gt;Artemia&lt;/i&gt; .In order to optimize the transitions of the different prey types, larval mouth size was analyzed as a function of larval development: San Francisco Bay (SFB) type &lt;i&gt;Artemia&lt;/i&gt; nauplii can be ingested from days 8 to 10 onwards, and Great Salt Lake (GSL) nauplii from days 10 to 15 (with some variations depending on growth differences between culture trials). In view of the high correlation between mouth size and total larval length, the feeding of different size classes of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets Fish larvae Food organisms Artemia Brachionus Lates calcarifer ISEW; Philippines.
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/262323.pdf

Correct taxonomic identification of &lt;i&gt;Artemia&lt;/i&gt; species
Provedor de dados: 27
Autores: Sorgeloos, P.; Beardmore, J.A.
In order to prevent any further confusion in the scientific literature, we would like to urge contributors to ensure that the citation of &lt;i&gt;Artemia&lt;/i&gt; in scientific articles in &lt;i&gt;Aquaculture Research&lt;/i&gt; is taxonomically correct. Too frequently, reference is made to &lt;i&gt;Artemia salina&lt;/i&gt;. This binomial refers to a European species which may be extinct. Most scientific studies are, however, based on the New World species &lt;i&gt;Artemia franciscana&lt;/i&gt;. We estimate that over 90% of the studies in which &lt;i&gt;Artemia&lt;/i&gt; is used as experimental test organism or as food source deal with this particular species, very often using material from the Great Salt Lake in Utah, USA. Today at least six bisexual...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2626

Progress in live food production and use in fish and shellfish hatcheries
Provedor de dados: 27
Autores: Sorgeloos, P.
Different species of microalgae, the rotifer, &lt;i&gt;Brachionus&lt;/i&gt; spp., and the brine shrimp, &lt;i&gt;Artemia&lt;/i&gt; spp., are essential live food in the farming of several species of molluscs (e.g. oyster, clam, scallop), crustaceans (e.g. marine shrimp, freshwater prawn, crabs) and fish (e.g. bass, bream, grouper, turbot, flounder, halibut, ayu). A brief overview is given of the latest developments in their production and use in industrial hatcheries.
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=318

International study on &lt;i&gt;Artemia&lt;/i&gt; : 48. The effect of temperature on cyst hatching larval survival and biomass production for different geographical strains of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; spp.
Provedor de dados: 27
Autores: Vanhaecke, P.; Sorgeloos, P.
The effect of temperature on different geographical strains of &lt;i&gt;Artemia&lt;/i&gt; has been studied for the following criteria: the hatchability of the cysts, the resistance of the larvae to high temperature (34°C) and the biomass production of larvae cultured under standard conditions. Experimental temperatures ranged from 25° to 37°C for the hatching criteria and from 20° to 32.5°C for the biomass production.Both the hatching percentage and growth performance are affected by temperature. However, the relative and quantitative impact of temperature varies widely among &lt;i&gt;Artemia&lt;/i&gt; strains. This is also the case for the temperature resistance of the larvae. The impact of increasing temperatures on cyst hatching as well as the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Biomass; Brine shrimp culture; Growth; Larvae; Survival; Temperature effects; Artemia.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3194

Meiofauna response to the &lt;i&gt;Agrip Abruzzo&lt;/i&gt; oil spill in subtidal sediments of the Ligurian Sea
Provedor de dados: 27
Autores: Danovaro, R.; Fabiano, M.; Vincx, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7275

International study on &lt;i&gt;Artemia&lt;/i&gt; : 24. Cold storage of live &lt;i&gt;Artemia&lt;/i&gt; nauplii from various geographical sources: potentials and limits in aquaculture
Provedor de dados: 27
Autores: Léger, P.; Vanhaecke, P.; Sorgeloos, P.
Freshly-hatched &lt;i&gt;Artemia&lt;/i&gt; nauplii from various geographical sources survived storage in a refrigerator (2-4°C) at densities of 2000 per ml and above. Except for &lt;i&gt;Artemia&lt;/i&gt; from Chaplin Lake and Buenos Aires, naupliar viability was very high even after 48 h storage, and did not decrease significantly after a 24 h post-storage transfer to 25°C. Neither the naupliar dry weight nor biochemical composition changed significantly during refrigeration for most strains tested. Comparative culture-tests with stored and freshly-hatched nauplii as food for juvenile marine mysids &lt;i&gt;Mysidopsis bahia&lt;/i&gt; M. and larval carp &lt;i&gt;Cyprinus carpio&lt;/i&gt; L. revealed similar production performances.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Cold storage; Nauplii; Artemia.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/261894.pdf

Annual variability in the seasonal cycles of chlorophyll, nutrients and zooplankton on the North-West European continental shelf
Provedor de dados: 27
Autores: Bot, P.V.M.; Van Raaphorst, W.; Batten, S.; Laane, R.W.P.M.; Philippart, K.; Radach, G.; Frohse, A.; Schultz, H.; Van den Eynde, D.; Colijn, F.
Seasonal cycles of salinity, nutrients, chlorophyll and zooplankton at 8 locations on the West-European shelf were analysed with respect to their timing and magnitude in the period 1980-1984. A late spring bloom with low chlorophyll values (2-4 mg.m-³) is observed in the Irish Sea, off the Scottish east coast and the Channel entrance. An early spring bloom and relatively high chlorophyll values (7-12 mg.m-³) are found in the southern Bight and the Skagerrak, whereas a late spring bloom with high chlorophyll concentrations (24 mg.m-³) is found along the Dutch and Belgian coast. In contrast to the other regions, the peak of the phytoplankton cycle in the German Bight (Helgoland) occurs in the summer period instead of the spring period. The peak in the yearly...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/256556.pdf

Polluants inorganiques dans les sédiments et les suspensions de la mer du Nord et de l'Escaut
Provedor de dados: 27
Autores: Hoenig, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266418.pdf

Sequence stratigraphy of the Belgian Eocene
Provedor de dados: 27
Autores: De Batist, M.; Jacobs, P.; Sevens, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2569

Etudes hydrobiologiques sur les eaux saumâtres de Belgique: VII. Le microplancton des eaux du Port d'Ostende. Période 1953-1954
Provedor de dados: 27
Autores: Van Meel, L.
In this work we studied some ecological factors and the floral composition of phytoplankton (micro plankton) during the 1953-1954 period. We measured successively: the temperature, the pH, the alkaline, the chlorine, the dissolved oxygen, the concentration of phosphates and nitrates. The water of the Ostend port passes the scale a-mesohaline to polyhaline. The sampling of the phytoplankton has been worked out one time or several times in a month. The Bacillariophyceae play an important role, the Dinophyceae are relatively rare, as the Chryosophyceae, and the Chlorophyceae are meeting during the whole year, with the exception of January, February and April, in little quantities, except for November. Dominant species are: &lt;i&gt;Coscinodiscus continues,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plankton ANE; Belgium; Oostende Harbour.
Ano: 1964
URL: http://www.vliz.be/imisdocs/publications/294269.pdf

Structural analysis of the meiobenthos communities of the shelf break area in two stations of the Gulf of Biscay (N.E. Atlantic)
Provedor de dados: 27
Autores: Vanreusel, A.; Vincx, M.; Van Gansbeke, D.; Gijselinck, W.
In a first attempt to obtain information in order to characterize the shelf break zone, the meiobenthos communities of two fine sandy stations of 190 m and 325 m depth in the Gulf of Biscay off the Spanish coast were investigated in relation to some environmental characteristics (sediment composition, chlorophyll &lt;i&gt;a&lt;/i&gt; content, redox values). The nematodes, which are the dominant taxon, were studied in detail. Their communities are relatively poor in densities (840 and 779 individuals per 10cm&lt;i&gt;2&lt;/i&gt; and biomass (0.137 and 0.334mg dwt/10cm&lt;sup&gt;2&lt;/sup&gt;) compared to those of shallow coastal areas. The dominance of small species (mean individual biomass: 0.169 and 0.423 µg dwt) and a low total biomass can be related to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance Biomass Deep sea Ecology Meiobenthos Nematoda [Nematodes] ASW; Puerto Rico Trench.
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/242558.pdf

A further note on wing-spreading of black storks
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6979

Seaweeds of the Snellius-II expedition: Chlorophyta: Dasycladales
Provedor de dados: 27
Autores: Coppejans, E.; Prud'homme van Reine, W.F.
A survey is given of algae collected during the Snellius-II Expedition (1984) in the Banda, Sawu and Flores Seas, in particular the genera &lt;i&gt;Acetabularia, Bornetella, Cymopolia, Neomeris&lt;/i&gt; and &lt;i&gt;Polyphysa&lt;/i&gt; (Dasycladales). Their morphology and anatomy are discussed, biogeographical data are added and a comparison is made with the material from the earlier Siboga Expedition (1899-1900).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Expedition reports; Seaweeds; Chlorophyta [green algae]; Dasycladales.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3166

The Hydrozoa: a new classification in the light of old knowledge
Provedor de dados: 27
Autores: Bouillon, J.; Boero, F.
The Hydrozoa, on the basis of embryological, developmental and morphological features, are considered as a superclass of the phylum Cnidaria comprising three classes: the Automedusa (with the subclasses: Actinulidae, Narcomedusae and Trachymedusae), characterised by direct development of the planula into a medusa; the Hydroidomedusa (with the subclasses: Anthomedusae, Laingiomedusae, Leptomedusae, Limnomedusae, and Siphonophorae), characterised by a polyp stage budding medusae through a medusary nodule; and the Polypodiozoa, with complex endocellular parasitic life cycles.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/303067.pdf

New and interesting copepods (Crustacea, Copepoda) from brackish waters of Laing Island (Northern Papua New Guinea)
Provedor de dados: 27
Autores: Fiers, F.
In the paper at hand, eight copepods are described from two small temporary brackish water pools at Laing Island (Papua New Guinea). Included are one cyclopoid: &lt;i&gt;Neocyclops papuensis&lt;/i&gt; n. sp. and seven harpacticoids: &lt;i&gt;Darcythompsonia inopinata&lt;/i&gt; Smirnov, &lt;i&gt;Leptocaris mucronatus&lt;/i&gt; n. sp.; &lt;i&gt;Schizopera brusinae&lt;/i&gt; Petkovski, &lt;i&gt;Nitocra lacrustris pacifica&lt;/i&gt; Yeatman, &lt;i&gt;Nitocra laingensis&lt;/i&gt; n. sp., &lt;i&gt;Phyllopodopsyllus alatus&lt;/i&gt; n. sp. and &lt;i&gt;Actinocletodes woutersi&lt;/i&gt; n. gen., n. sp.
Tipo: Info:eu-repo/semantics/article
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/303528.pdf

Interpretation of particle spectra of electronic counters by microscopical methods
Provedor de dados: 27
Autores: Bakker, C.; Prins, T.C.; Tackx, M.L.M.
1. Using monocultures or single species dominated natural phytoplankton, cell counts and volume estimations obtained by visual and electronic methods show reasonable agreement.Calibration seems possible (Figs.1-2).2. Further examples given (Fig. 3-4) show that microscopical identification of the volume peaks in electronic counter spectra of natural seston is not quite simple. Phytoplankton peaks may not be detected in the Counter spectrum. Shifts of Counter peaks to the left side of the visual spectrum may be found when cylindrical, elongated or needle- like phytoplankton dominate the sample.3. Both visual and electronic methods include potentially large errors. Possibly particle volume is either overestimated by the microscope and / or underestimated by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detritus; Grazing; Measuring devices; Particle counters; Particle size; Phytoplankton; Zooplankton.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3195

Boundary conditions for heavy metals at the air-sea interface
Provedor de dados: 27
Autores: Dehairs, F.A.; Dedeurwaerder, H.; Dejonghe, M.; Decadt, G.; Gillain, G.; Baeyens, W.F.J.; Elskens, I.
During 1980 and 1981 the aerosol burden as well as the wet and dry atmospheric fall-out of Cu, Cd, Pb, Zn, Fe and Mn to the sea have been studied in the Belgian coastal area. Atmospheric Cu, Zn and Cd are observed to be introduced into the sea mainly by wet fall-out, while Fe, Mn and also Pb have a dry and wet fall-out of similar magnitude. Of these elements, Cu, Zn and Cd have the highest washout factors. Furthermore, for all elements, excepted Mn, discrepancies exist between washout factors above land and sea, with values up to 5 times larger above the sea.On the scale of the North Sea, atmospheric fall-out of Cu, Zn, Pb and Cd exceeds by one order of magnitude the combined input of the rivers Scheldt, Rhine and Meuse, while fall-out of Fe and Mn is of...
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10065

Temperature, salinity and food thresholds in two brackish-water bacterivorous nematode species: assessing niches from food absorption and respiration experiments
Provedor de dados: 27
Autores: Moens, T.; Vincx, M.
Respiration and food assimilation of two estuarine bacterivorous nematodes, the rhabditid &lt;i&gt;Pellioditis marina&lt;/i&gt; and the monhysterid &lt;i&gt;Diplolaimelloides meyli&lt;/i&gt;, were measured at a range of temperatures, salinities, and food densities. The aim of this study was to identify the fundamental niche of both species in their natural habitat, and to investigate the relative importance of food and abiotic factors in determining presence and success of nematode species in the highly dynamic estuarine tidal environments of macrophyte detrital habitats. Of the three factors studied, salinity least impacted &lt;i&gt;P. marina&lt;/i&gt; and &lt;i&gt;D. meyli&lt;/i&gt;. Respiration and assimilation in both species showed only minor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematoda [Nematodes].
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7422

A comparison between models describing the influence of temperature on the development rate of copepods
Provedor de dados: 27
Autores: Heip, C.H.R.
Four mathematical expressions relating development time to temperature are compared. All four yield good predictions of the development rate of the copepod &lt;i&gt;Tachidius discipes&lt;/i&gt;. The use of the equation of Belehradek is criticized. It is concluded that the power equation D= aT&lt;sup&gt;b&lt;/sup&gt; gives the best approximation in this case.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Temperature effects; Copepoda [copepods].
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3496

General description of the Scheldt estuary
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Van Eck, B.T.M.; Lambert, C.; Wollast, R.; Goeyens, L.
A general description of the Scheldt estuary, including the hydrology, the sediment transport, the productivity and the biodegradation with respect to their influence on the trace metal behaviour in the Scheldt estuary, is given. The river basin can be divided in several sections according to their morphological, hydrodynamical and sedimentary properties. The zone from km 78 to 55, which corresponds roughly with the salinity zone from 2 to 10 psu, is the zone of high turbidity, high sedimentation and of oxygen depletion, especially in the summer period. That area is called the geochemical filter because the solid/dissolved distribution of the trace metals is controlled by redox, adsorption/desorption, complexation and precipitation/coprecipitation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Netherlands; Westerschelde.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7040

Quelques espèces du genre &lt;i&gt;Onithochiton&lt;/i&gt; Gray, 1847
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/296381.pdf

La banque de données
Provedor de dados: 27
Autores: Adam, Y.A.; Laval, H.; Closset, P.; Foguenne, J.-P.; Keutgen, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266903.pdf

Seaweeds of the Snellius-II expedition: Chlorophyta: Caulerpales (except &lt;i&gt;Caulerpa&lt;/i&gt; and &lt;i&gt;Halimeda&lt;/i&gt;)
Provedor de dados: 27
Autores: Coppejans, E.; Prud'homme van Reine, W.F.
In the present paper a survey is given of species belonging to the genera &lt;i&gt;Avrainvillea, Chlorodesmis, Rhipilia, Rhipiliopsis, Tydemania&lt;/i&gt; and &lt;i&gt;Udotea&lt;/i&gt; collected during the Indonesian-Dutch Snellius-II Expedition (1984) in the Banda, Sawu and Flores Seas. The morphology and anatomy of these seaweeds are discussed, biogeographical data are added and some comparison is made with the material from the earlier Siboga Expedition (1899-1900).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Expedition reports; Seaweeds; Caulerpales.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3163

Bijdrage tot de kennis der mariene fauna van de Belgische kust: V. Some observations on the Crustacean fauna of the Sluice-dock (Bassin de Chasse) of Ostend
Provedor de dados: 27
Autores: Polk, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea [crustaceans] ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1963
URL: http://www.vliz.be/imisdocs/publications/290069.pdf

Technological improvements for the cultivation of invertebrates as food for fishes and crustaceans: 1. Devices and methods
Provedor de dados: 27
Autores: Persoone, G.; Sorgeloos, P.
Technological problems can be considered as one of the bottlenecks of research concerned with culturing aquatic invertebrates in the laboratory, as well as the pilot and mass production stages. Oxygenation problems, circulation of the food and sedimentation problems can easily be solved by adapting the shape of the culturing vessels, i. e., by using funnel-shaped bottoms or high, narrow cylinders. In both cases, the food particles, settled on a very small bottle area, can easily be blown back into suspension using an air pump, which re-aerates the medium at the same time. A number of culturing devices for different categories of organisms, including algae are described and commented on. The only power source involved is compressed air which aerates, keeps...
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3510

Flow in and on the Zeebrugge breakwater: a comparison between prototype measurements and physical model tests
Provedor de dados: 27
Autores: Schütter, F.; Frigaard, P.; Eelen, B.; Troch, P.; De Rouck, J.; Lewis, A.W.; Murphy, J.; Kingston, K.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8541

Development of a lipid-enrichment technique for &lt;i&gt;Artemia&lt;/i&gt; juveniles produced in an intensive system for use in marine larviculture
Provedor de dados: 27
Autores: Dhont, J.; Lavens, P.; Sorgeloos, P.
Although there exists an obvious inclination to replace live larval food by formulated feeds, &lt;i&gt;Artemia nauplii&lt;/i&gt; are still essential in the larviculture of marine fish species. So far, on-grown &lt;i&gt;Artemia&lt;/i&gt; are rarely used in larviculture although they offer several advantages over &lt;i&gt;Artemia nauplii&lt;/i&gt;: e.g. they contain a higher individual protein and energy content thus improving the fish larvae's energy budget; an equal amount of live food is reached with far less individuals thus a considerable saving of &lt;i&gt;Artemia&lt;/i&gt; cysts; their composition of (n-3) highly unsaturated fatty acids (HUFA) may easily be improved by applying enrichment techniques. This study deals with the development of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish culture; Fish larvae; Food organisms; Intensive culture; Lipids; Nutritive value; Artemia.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2854

Progress in biomedication using live foods
Provedor de dados: 27
Autores: Robles, R.; Sorgeloos, P.; Van Duffel, H.; Nelis, H.J.
With the intensification of aquaculture production systems, mass mortality of fish and shellfish caused by bacterial infections is not unusual. Chemotherapy (treatment of infection with antimicrobial compounds) and immunoprophylaxis (vaccination and immunostimulation), are the common methods applied to treat bacterial infections. In search of an efficient and cost-effective delivery route for antimicrobial agents and/or immuno-prophylactics to treat fish and shrimp larvae, the use of live prey organisms bioencapsulated with drugs has been explored. This article provides an update on the use of the bioencapsulation technique in aquaculture.
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=315

Marine green algae (Chlorophyta) from the north coast of Papua New Guinea
Provedor de dados: 27
Autores: Coppejans, E.; Leliaert, F.; Dargent, O.; De Clerck, O.
The marine benthic green algae of the north coast of Papua New Guinea (mainly from Madang province) are documented, based on collections made by the first author between 1980 and 1990. All records (118 taxa) are listed with bibliographic, taxonomic, nomenclatural and biogeographical notes. Identification keys are added for genera represented by at least two species. Representatives of the Pseudocodiaceae and some Udoteaceae are illustrated. The green algal flora of the north coast appears to be much richer than that of the south coast where 72 taxa, including 19 unchecked records from literature, are recorded from the Port Moresby area.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Identification keys Chlorophyta [green algae] ISEW; Papua New Guinea.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7782

De Belgische staatshervorming en het Zeerecht
Provedor de dados: 27
Autores: Franckx, E.
Belgium became officialy a federal state in 1993. The federal competence was reshuffeled and parts of it attributed to the Communities and Regions. Since the latter became competent in economic matters, it is mostly the redistribution of powers between the federal and regional level which is at order in this study. At first sight, a rather simple rule of thumb can be applied. All waters located on the land-side of the baseline, i.e. the low-water line in Belgium, belong to the competence of the Regions. All waters on the seaside of the baseline, on the other hand, remain a federal competence. This is the result of a basic interpretation given by the Conseil d’Etat in 1976. This body reached the conclusion that the territorial sea did not form part of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: International agreements Law of the sea Legislation ANE; Belgium.
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/277207.pdf

Eocene sediment supply in western Belgium as determined through heavy mineral distribution
Provedor de dados: 27
Autores: Jacobs, P.
The distribution of heavy minerals in Middle to Upper Eocene deposits of western Belgium is discussed with reference to ternary diagrams based on density (&lt;3.4; 3.4-4.2; &gt;4.2) and mineralogical composition (ubiquist, parametamorphic and garnet-epidote-amphibole-pyroxene groups). A corresponding diamond diagram is used to interpret the transport mode and the energy of the sedimentary environment.The Aalter Formation (middle Eocene), which was deposited in a quiet to turbulent setting, contains high amounts of ubiquists, parametamorphic minerals and garnets, with a minor epidote and amphibole content. The Maldegem Formation (middle to late Eocene) of deltaic origin, is characterized by the dominance of ubiquists, particularly in the sands and silts....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eocene; Heavy minerals; Belgium.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2566

Projekt Zee eindverslag: 10. Het Schelde-estuarium
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Wollast, R.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Accumulation Hydrodynamics Models Physicochemical properties Pollution Pollution transport Sediment transport Temperature Thermal pollution ANE; Scheldt Estuary.
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/140758.pdf

The spectral wave model, WAM, adapted for applications with high spatial resolution
Provedor de dados: 27
Autores: Monbaliu, J.; Padilla-Hernandez, R.; Hargreaves, J.C.; Carretero Albiach, J.C.; Luo, W.; Sclavo, M.; Günther, H.
New features have been added and several necessary changes have been made to the standard WAM-cycle4 (WAMC4) model code for it to run efficiently when applied to shallow water regions. The restriction of having a source term integration time step smaller than or equal to the propagation time step was relaxed, considerably reducing the computational time needed. An additional reduction in computing time and an increase in accuracy were obtained by introducing a split-frequency time step. There is now a choice of using the octant or quadrant coordinate system for the propagation of the wave energy. The source term integration and, more particularly, the use of a limiter on the energy growth, were studied. For the evaluation of the energy decay in shallow...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breaking waves; Coastal engineering; Mathematical models; Shallow water; Wave predicting; Wave propagation.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6924

A new species of &lt;i&gt;Microdajus&lt;/i&gt; (Crustacea: Tantulocarida) parasitic on a tanaid in the north-eastern Atlantic, with observations on &lt;i&gt;M. langi&lt;/i&gt; Greve
Provedor de dados: 27
Autores: Boxshall, G.; Huys, R.; Lincoln, R.
The tantulus larva ofMicrodajus langi is redescribed using Scanning Electron Microscopy. Thoracopods 2–5 have poorly developed but fully armed endites. Thoracopods 1–5 are biramous, with each ramus represented by a minute segment. A new species,M. pectinatus, is described from a tanaid host collected in the Rockall Trough, off the west coast of Scotland. A system of homologies for the portopodal segments of the thoracopods of the tantulus larva is proposed. Some aspects of the musculature of the adult male are described for the first time.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7072

The influence of the formulation of the herbicide paraquat on its toxicity for aquatic organisms
Provedor de dados: 27
Autores: Benijts-Claus, C.; Persoone, G.
Short term bio-assays have been carried out on representatives of different trophic levels of the aquatic food chain. The two wetters, which are included in the commercial formulation "Gramoxone" are very harmful for fish and their combination to paraquat increases the toxicity of the herbicide. Algae and crustaceans on the contrary, are more affected by the herbicide than by the wetters, the toxicity to the latter two groups being much higher than to fish.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3525

Protandric hermaphroditism in the brown shrimp , &lt;i&gt;Crangon crangon&lt;/i&gt; (L.) , and its effects on recruitment and reproductive potential
Provedor de dados: 27
Autores: Martens, E.E.; Redant, F.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Fecundity Hermaphroditism Histology Population dynamics Recruitment Crangon crangon (Linnaeus; 1758) [Brown shrimp] ANE; Belgium; Belgian Coast.
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/129250.pdf

Larval development of the land crab &lt;i&gt;Gecarcinus lateralis lateralis&lt;/i&gt; (Fréminville,1835) (Brachyura Gecarcinidae) reared in the laboratory
Provedor de dados: 27
Autores: Willems, K.A.
The complete larval development of &lt;i&gt;Gecarcinus lateralis lateralis&lt;/i&gt; (Fréminville, 1835), a gecarcinid land crab from Bermuda, is described and illustrated based on larvae reared in the laboratory. The species passes through six (possibly five) zoeal stages and one megalopal stage. The development through six zoeal stages to the young crab stage takes at least 29 days. Morphological characters of &lt;i&gt;G. l. lateralis&lt;/i&gt; larvae are compared with gecarcinid species of which the complete larval development is known, i.e., &lt;i&gt;Cardisoma guanhumi&lt;/i&gt; and &lt;i&gt;C. carnifex&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larval development; Rearing; Gecarcinus lateralis lateralis.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3392

Locatie-analyse van havengebonden afval in de havens van Antwerpen, Gent, Oostende en Zeebrugge en langs de Vlaamse waterwegen: deelstudie
Provedor de dados: 27
Autores: Maes, F.; Gonsaeles, G.; Buyse, A.
Tipo: Info:eu-repo/semantics/book
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5088

Manipulated yeast diets as a partial algal substitute for the nursery culture of the hard clam &lt;i&gt;Mercenaria mercenaria&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Hadley, N.H.; Manzi, J.; Sorgeloos, P.
Rearing bivalve molluscs in commercial hatchery and nursery systems has so far relied on the production of live algae, which is costly and often unpredictable. Therefore the development of satisfactory artificial diet would greatly reduce the operating costs of bivalve operations. The development of techniques to improve the nutritional composition and digestibility of yeasts resulted in a product with great potential as a substitute for unicellular algae. Previous work on the Manila clam &lt;i&gt;Tapes semidecussata&lt;/i&gt; showed that replacing 80% of the algae by these manipulated yeasts resulted in growth rates of 64 to 93% in comparison with the growth rate obtained for the algal control. In the present study a standard culture test for evaluating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clam culture; Diets; Feed composition; Feeding experiments; Food preferences; Hatcheries; Invertebrate larvae; Rearing.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2809

Revision of the Archimonocelididae (Platyhelminthes) Meixner, 1938
Provedor de dados: 27
Autores: Martens, P.M.; Schockaert, E.R.; Curini-Galletti, M.C.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7368

Exploration de la mer sur les côtes de Belgique. Première série. Recherches sur le milieu marin et ses variations au voisinage de la côte belge: III. Recherches sur la dérive dans la Mer du Nord: I. Expériences II à XIII
Provedor de dados: 27
Autores: Gilson, G.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Wind-driven currents ANE; Belgium.
Ano: 1924
URL: http://www.vliz.be/imisdocs/publications/317643.pdf

A propos de deux &lt;i&gt;Callochitons&lt;/i&gt;: &lt;i&gt;castaneus&lt;/i&gt; (Wood, 1815) et &lt;i&gt;inornatus&lt;/i&gt; Ten-Woods, 1881
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callochiton; Callochiton castaneus.
Ano: 1970
URL: http://www.vliz.be/imisdocs/publications/289046.pdf

&lt;i&gt;Asterocheres reginae&lt;/i&gt;, a new species of parasitic copepod (Siphonostomatoida: Asterocheridae) from a sponge in Belize
Provedor de dados: 27
Autores: Boxshall, G.; Huys, R.
Asterocheres reginae n. sp., of the family Asterocheridae, is described from the spongeAgelas clathrodes (Schmidt) collected at Carrie Bow Cay, Belize. It inhabits the internal canal system of its sponge host. A detailed description of both sexes is presented, and emphasis has been placed on the recognition of homologies between the limb segments and armature elements in accordance with the new evolutionary scheme established by Huys &amp; Boxshall (1991).
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7265

Enrichment strategies for &lt;i&gt;Artemia&lt;/i&gt; using emulsions providing different levels of n-3 highly unsaturated fatty acids
Provedor de dados: 27
Autores: Han, K.; Geurden, I.; Sorgeloos, P.
Three separate enrichment trials compared the &lt;i&gt;n&lt;/i&gt;-3 highly unsaturated fatty acid (HUFA) levels in &lt;i&gt;Artemia franciscana&lt;/i&gt; nauplii (Great Salt Lake, USA) as a function of the &lt;i&gt;n&lt;/i&gt;-3 HUFA level in the emulsion (30% and 50%), the enrichment dose (0.05, 0.1, 0.2, 0.3 and 0.4 g1-1) and the degree of dilution of a high HUFA emulsion with an &lt;i&gt;n&lt;/i&gt; -3 HUFA-free emulsion (100/0, 50/50, 25/75, 12.5/87.5 and 0/100, HUFA-rich/HUFA-free, w/w). The standard emulsions were distributed by the International Council for the Exploration of the Sea, Working Group on the Mass Rearing of Juvenile Fish (ICES). After the 48-h enrichment, the content of docosahexaenoic acid (DHA), eicosapentaenoic acid EPA) and total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimental culture; Feeding experiments; Polyunsaturated fatty acids; Zooplankton culture; Artemia; Artemia franciscana.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=42

Algues marines nouvelles pour la Côte du Boulonnais ( Pas-de-Calais, France) = Algues marines nouvelles pour la Côte du Boulonnais ( Pas-de-Calais, France)
Provedor de dados: 27
Autores: Coppejans, E.; De Cock, L.; Gillis, J.
The authors describe 12 seaweeds that have not been collected previously from the French coasts of the Channel: The Chlorophyceae &lt;i&gt;Rosenvingiella polyrhiza, Ulothrix palusalsa, U. speciosa, Ulva pseudocurvata, U. scandinavica, Urospora bangioides&lt;/i&gt;, the Phaeophyceae &lt;i&gt;Isthmoplea spaerophora, Pogotrichum filiforme&lt;/i&gt; and &lt;i&gt; Stictyophon&lt;/i&gt; cf.&lt;i&gt;soriferus&lt;/i&gt; and the Rhodophyceae &lt;i&gt;Aglothamnion roseum, Ceramium shuttleworthianum&lt;/i&gt; and &lt;i&gt;Rhodomela confervoides&lt;/i&gt;. Ecological data are added to the morphological and anatomical description.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorophyceae Phaeophyceae [brown algae] Rhodophyceae ANE; France; Nord; Pas-de-Calais.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3317

The use of API 20E for the identification of &lt;i&gt;Vibrio anguillarum&lt;/i&gt; and &lt;i&gt;V. ordalii&lt;/i&gt;
Provedor de dados: 27
Autores: Grisez, L.; Ceusters, R.; Ollevier, F.P.
Sixty-eight strains of &lt;i&gt;Vibrio anguillarum&lt;/i&gt;, five of &lt;i&gt;V. ordalii&lt;/i&gt; and the type strains of &lt;i&gt;V. alginolyticus, V. carchariae, V. damsela&lt;/i&gt; and &lt;i&gt;V. parahaemolyticus&lt;/i&gt; were compared using the API 20E gallery. Within the &lt;i&gt;V. anguillarum&lt;/i&gt; strains, distinct groups could be separated mainly on the basis of their reaction on indole production and the fermentation of amygdalin and arabinose. &lt;i&gt;Vibrio ordalii&lt;/i&gt;, the former &lt;i&gt;V. anguillarum&lt;/i&gt; biotope 2, could easily be separated from &lt;i&gt;V. anguillarum&lt;/i&gt; and from the other fish pathogenic &lt;i&gt;Vibrio&lt;/i&gt; spp.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial diseases; Disease control; Disease detection; Fish diseases; Identification; Vibrio carchariae; Vibrio ordalii; Vibrio alginolyticus; Vibrio anguillarum; Vibrio damsela; Vibrio parahaemolyticus.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2859

&lt;i&gt;Procamacolaimus tubifer&lt;/i&gt; Gerlach, 1953, &lt;i&gt;Procamacolaimus africanus&lt;/i&gt; sp. nov. and &lt;i&gt;Eontolaimus capensis&lt;/i&gt; gen.nov., sp.nov. (Nematoda, Leptolaimidae) from Southern Africa
Provedor de dados: 27
Autores: Furstenberg, J.P.; Vincx, M.
A female and three males of &lt;i&gt;Procamacolaimus tubifer&lt;/i&gt; Gerlach, 1953 are described and illustrated from Cape Receife Beach, Port Elizabeth. &lt;i&lt;P. africanus&lt;/i&gt; sp.nov. is also described from Cape Receife Beach. It is compared with &lt;i&gt;P. tubifer&lt;/i&gt; which it resembles but from which it can be differentiated by length of the buccal cavity, amphid size and the shape of the spicules. &lt;i&gt;Eontolaimus capensis&lt;/i&gt; gen.nov., sp.nov. is described, also from the same sandy beach. This new genus is related to &lt;i&gt;Deontolaimus papillatus&lt;/i&gt; de Man, 1880 from which it can be distinguished, among other things, by the absence of a tooth-like structure in the buccal cavity and the presence of pre-anal tubuli.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptolaimidae; Nematoda [Nematodes].
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/276167.pdf

Observations sur l'ostréiculture à Cuba: 1. Composition du plancton
Provedor de dados: 27
Autores: Lambert, F.; Polk, Ph.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition Oyster culture Plankton ASW; Greater Antilles; Cuba.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3433

Availability of reference &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Artemia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3708

Hibernation in the copepod &lt;i&gt;Halicyclops magniceps&lt;/i&gt; (Lilljeborg, 1853)
Provedor de dados: 27
Autores: Heip, C.H.R.
&lt;i&gt;Halicyclops magniceps&lt;/i&gt; (Lilljeborg, 1853) is an inhabitant of brackish waters along the European Atlantic coasts from Germany south, and of Algeria (Dussart, 1969). During five years of investigation of a shallow brackish water pool in northern Belgium, we found the species to be the only quantitatively important cyclopoid copepod. It shows a clear yearly cycle, with one prominent peak in summer (Heip, 1973). It appears at the end of April or the beginning of May, and disappears again in October or November. Because a previous investigation, carried out in summer, had shown that copepods do not occur below a depth of 3-4 cm in the sediment, samples were limited to the first five centimeters of the sediment and included a water column of...
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3504

Variation in egg and larval quality in various fish and crustacean species
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
It is generally accepted, that a major constraint in the further development of marine fish and crustacean aquaculture, is the variable quality of eggs and larvae used for the hatchery-production of fry. Nonetheless, valid criteria to evaluate optimal egg quality have not been identified yet. Instead, particular indicators, are used, e.g. the fertilization and hatching rate, overall culture success during the first rearing period, etc., but these are not totally objective because hatchery-specific conditions may interfere. The biochemical composition of the egg may be one of the possible determinants of egg quality, which can be evaluated on a more objectie basis. In this respect, studied have been initiated to analyze in freshly-released eggs, the levels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Biochemical composition; Crustacean culture; Eggs; Fatty acids; Fish culture; Hatcheries; Quality control; Vitamin C.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262328.pdf

Notes sur les Céphalopodes: 26. Une nouvelle espèce de &lt;i&gt;Todarodes&lt;/i&gt; (&lt;i&gt;Todarodes filippovae&lt;/i&gt; sp.nov.) de l'Océan Indien
Provedor de dados: 27
Autores: Adam, W.
&lt;i&gt;Todarodes filippocae&lt;/i&gt; sp.nov. is described from the Indian Ocean. The specimen had previously been misidentified as &lt;i&gt;T.sagittatus angolensis&lt;/i&gt;. The similarities and differences between the new sp and other spp are examined.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/303542.pdf

Monocelididae and Archimonocelididae (Platyhelminthes Proseriata) from South Sulawesi (Indonesia) and Northern Australia with biogeographical remarks
Provedor de dados: 27
Autores: Martens, P.M.; Curini-Galletti, M.C.
Thirteen new species of the Monocelididae and three Archimonocelididae from South Sulawesi and North Australia are described. More than 2/3 of the species belong to the subfamily Minoninae; among them, seven pertain to the genus &lt;i&gt;Duplominona&lt;/i&gt; which in tropical areas seems to be the dominant genus among the Proseriata, colonizing a wide range of habitats.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeography Archimonocelididae Monocelididae ISEW; Australia; Northern Terr. ISEW; Indonesia; Sulawesi.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3043

Research on the culturing of the brine shrimp &lt;i&gt;Artemia salina&lt;/i&gt; L. at the State University of Ghent (Belgium)
Provedor de dados: 27
Autores: Sorgeloos, P.; Baeza-Mesa, M.; Benijts, F.; Persoone, G.
In the framework of research on mariculture at the "Institute for Marine Scientific Research" (IZWO), the "Laboratory for Biological Research in Environmental Pollution" at the State University of Ghent, is focusing on culturing problems of the brine shrimp &lt;i&gt;Artemia salina&lt;/i&gt;.  The following research topics are discussed: 1. The mechanisms leading to the hatching of &lt;i&gt;Artemia&lt;/i&gt; cysts are reviewed and complemented with new data on the sensitivity to light and temperature, and on the reversibility of the development within the cyst. The possible influences of the collecting, sorting, and packaging processes on the quality of the cysts are discussed. 2. Since in the literature much confusion exists concerning the mechanisms...
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3533

Use of a potential probiotic &lt;i&gt;Lactococcus lactis&lt;/i&gt; AR21 strain for the enhancement of growth in the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; (Müller)
Provedor de dados: 27
Autores: Shiri Harzevili, A.R.; Van Duffel, H.; Dhert, Ph.; Swings, J.; Sorgeloos, P.
The effect of a potential probiotic on the growth performance of a rotifer and its inhibition against &lt;i&gt;Vibrio anguillarum&lt;/i&gt; was studied. Probiotic strain AR21 had no significant observable effect on the growth rate of rotifers under optimal culture conditions in three consecutive experiments. In the first and second experiments, the AR21 strain exhibited an inhibitory effect against the &lt;i&gt;V. anguillarum&lt;/i&gt; strain when rotifer cultures were maintained at a suboptimal feeding regime. The growth rate of the rotifers in suboptimal feeding conditions was significantly higher in the treatment receiving AR21 and &lt;i&gt;V. anguillarum&lt;/i&gt; than in the treatment where only &lt;i&gt;V. anguillarum&lt;/i&gt; was added.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth Probiotics Rotifera Brachionus plicatilis Müller; 1786 Lactococcus lactis.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=317

Report of the working group on &lt;i&gt;Nephrops&lt;/i&gt; stocks, Ostend, Belgium, 15-22 April 1999. Part 1
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/275857.pdf

Notes on the life-cycle of &lt;i&gt;Deropristis inflata&lt;/i&gt; (Molin, 1885)? (Trematoda Digenea: Acanthocolpidae): transmission between first and second intermediate host
Provedor de dados: 27
Autores: Vaes, M.
Information is presented concerning the transmission from &lt;i&gt;Hydrobia stagnorum&lt;/i&gt; (first intermediate host) to &lt;i&gt;Nereis diversicolor&lt;/i&gt; (second intermediate host) of a species attributed provisionally to &lt;i&gt;Deropristis inflata&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hosts; Life cycle; Parasites; Deropristis inflata.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3589

Faunistic and anatomical data on the Antarctic Opisthobranchia (Mollusca, Gastropoda) in the collections of the Royal Belgian Institute of Natural Sciences
Provedor de dados: 27
Autores: Troncoso, J.S.; García, F.J.; Backeljau, T.; Urgorri, V.
Five opisthobranch species were collected during the Belgian and Belgian-Dutch Antarctica expeditions to the Riiser-Larsen Sea, the Princess Ragnhild Coast ("Mission Iris") (1960-1967) and Admiralty Bay (King George Island) (1987-1991). These species include &lt;i&gt;Philine alata&lt;/i&gt; Thiele, 1912, &lt;i&gt;Bathyberthella antarctica&lt;/i&gt; Willan &amp; Bertsch, 1987, &lt;i&gt;Notaeolidia gigas&lt;/i&gt; Eliot, 1905, &lt;i&gt;Aegires (Anaegires) albus&lt;/i&gt; Thiele, 1912 and &lt;i&gt;Austrodoris kerguelenensis&lt;/i&gt; Bergh, 1884. This material is deposited in the Royal Belgian Institute of Natural Sciences. The present contribution provides anatomical and faunistic data on this collection and extends the distributional range of several species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological sampling Cruise reports Marine molluscs Museum collections Taxonomy Aegires albus Bathyberthella antarctica Doris kerguelenensis Notaeolidia gigas Philine alata PSW; Antarctica; Dronning Maud Land; Princess Ragn PSW; Antarctica; South Shetland I.; King George I.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303495.pdf

Uptake of &lt;i&gt;Vibrio anguillarum&lt;/i&gt; vaccine by &lt;i&gt;Artemia salina&lt;/i&gt; as a potential oral delivery system to fish fry
Provedor de dados: 27
Autores: Campbell, R.; Adams, A.; Tatner, M.F.; Chair, M.; Sorgeloos, P.
An ELISA to detect &lt;i&gt;Vibrio anguillarum&lt;/i&gt; antigen in &lt;i&gt;Artemia salina&lt;/i&gt; was developed. This assay was then used to determine the time course of antigen uptake by &lt;i&gt;Artemia&lt;/i&gt; during incubations with &lt;i&gt;Vibrio&lt;/i&gt; vaccine with a view to using &lt;i&gt;Artemia&lt;/i&gt; as a vaccine carrier for oral vaccination of fish fry. The rate of uptake of vaccine by &lt;i&gt;Artemia&lt;/i&gt; was shown to be concentration dependent. At a dose of 1.5x10&lt;sup&gt;7&lt;/sup&gt; cfu ml&lt;sup&gt;-1&lt;/sup&gt;, 1 mg wet weight of &lt;i&gt;Artemia&lt;/i&gt; took up 1x10&lt;sup&gt;5&lt;/sup&gt; cfu within 30min and reached maximum of 6x10&lt;sup&gt;6&lt;/sup&gt; cfu after 60min. Thus each &lt;i&gt;Artemia&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina; Vibrio anguillarum.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2668

Full scale measurements of wave attenuation inside a rubble mound breakwater
Provedor de dados: 27
Autores: Troch, P.; De Somer, M.; De Rouck, J.; Van Damme, L.; Vermeir, D.; Martens, J.-P.; Van Hove, C.
At the Zeebrugge harbour (Belgium) a cross-section of the N.W.-breakwater has been instrumented for the study of physical processes related to the behaviour of a prototype rubble mound breakwater in random wave conditions. Within the EC MAST programme (project MAS02-CT92-0023) this monitoring system has been reengineered and extended to a high-quality full scale data acquisition centre (Troch et al., 1995). The development of the prototype monitoring system to a world-wide unique system with respect to the infrastructure available at Zeebrugge, the instrumentation installed on site, and the data management developed, is briefly summarised. Filed measurements of wave attack in front of the breakwater, and pore pressure response inside the breakwater core,...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8545

Résultats d'une étude d'homogénéité de peuplements algaux photophiles sur substrat rocheux à Port-Cros et à Banyuls (France)
Provedor de dados: 27
Autores: Coppejans, E.
The homogeneity of photophilous algal vegetations at Port-Cros and Banyuls (France) have been calculated by different methods. The results are compared. They are very high: 75-80%.
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/imisdocs/publications/281137.pdf

Formulation of national marine policy: the case of Belgium
Provedor de dados: 27
Autores: Volckaert, F.A.M.J.
The Third Law of the Sea Conference has put Belgian marine interest in a new perspective. This paper analyses the historical as well as socioeconomic roots of Belgian marine policies, as well as legal and treaty infrastructure. A patchwork of formulated and implicit marine policies characterizes the 'national marine policy'.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Law of the sea Policies ANE; Belgium.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3225

Contribution à l'étude des bactéries des eaux marines du littoral belge
Provedor de dados: 27
Autores: Kufferath, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1970
URL: http://www.vliz.be/imisdocs/publications/276634.pdf

Het ruimtelijk patroon van meiobenthos in een meso-halien brakwatergebied
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7688

Non-linear mapping of microbeam proton-induced X-ray emission data for source identification of North Sea aerosols
Provedor de dados: 27
Autores: Treiger, B.; Injuk, J.; Bondarenko, I.; Van Espen, P.; Van Grieken, R.; Breitenbach, L.; Wätjen, U.
A multivariate statistical evaluation technique, non-linear mapping, is proposed to extract information from a multielement microbeam proton-induced X-ray emission data set. Individual aerosol particles, collected in the North Sea troposphere, were classified according to their composition. Several groups of particles were identified and suggestions were made for their sources.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2683

Round Table discussions
Provedor de dados: 27
Autores: Coomans, A.; De Coninck, L.A.P.; Heip, C.H.R.
The round table discussions at the end of the meeting were summarized from tape recordings that were not always clear and voices could not always be identified. Therefore we decided to give the main ideas that were expressed and were proposed or accepted by all or a majority of the participants, without reference to any person. We hope that this summary is a true reflection of what was said with many more words.
Tipo: Info:eu-repo/semantics/article
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6987

Production, utilization and manipulation of &lt;i&gt;Artemia&lt;/i&gt; as food source for shrimp and fish larvae
Provedor de dados: 27
Autores: Lavens, P.; Léger, P.; Sorgeloos, P.
Larval culture of fish and shrimp can be seriously improved thanks to the results of recent research and development in the field of &lt;i&gt;Artemia&lt;/i&gt; production and utilization. The present article summarizes the most recent techniques for optimation in production and use of different stages of &lt;i&gt;Artemia&lt;/i&gt; in aquaculture:- cyst selection in function of hatching quality, purity, biometric characteristics, etc. - nauplii production: techniques for hatching, disinfection and decapsulation;- nutritional value of nauplii: quantitative aspects with regard to essential components and contaminants;- bioencapsulation of nauplii with different enrichment components: methodology and results in fish and shrimp culturing;- utilization of (pre-)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Brine shrimp culture; Developmental stages; Fish culture; Food organisms; Nutritive value; Shrimp culture; Artemia.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3245

Structural characteristics of phytoplankton assemblages in tidal and non-tidal freshwater systems: a case study from the Schelde basin, Belgium
Provedor de dados: 27
Autores: Muylaert, K.; Van Kerckvoorde, A.; Vyverman, W.; Sabbe, K.
&lt;ol&gt;&lt;li&gt;The Schelde estuary, its side basins and their tributaries were sampled in August 1995 and April 1996 for phytoplankton abundance, biomass and species composition. In order to clarify the underlying causes of differences in phytoplanton communities, the results were related to some important abiotic variables.&lt;li&gt;Although species richness and diversity did not differ significantly between the riverine and the freshwater tidal stations, multivariate ordination techniques based on species abundances differentiate between these two ecosystems. While in the rivers phytoplankton standing stocks were as high in summer as in spring, standing stocks in the freshwater tidal estuary were significantly higher in the August...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intertidal environment Phytoplankton Belgium; Zeeschelde.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2965

Culture of &lt;i&gt;Artemia&lt;/i&gt; on rice bran: the conversion of a waste-product into highly nutritive animal protein
Provedor de dados: 27
Autores: Sorgeloos, P.; Baeza-Mesa, M.; Bossuyt, E.; Bruggeman, E.; Dobbeleir, J.; Versichele, D.; Laviña, E.; Bernardino, A.
The age-old problem of finding a cheap and suitable food for &lt;i&gt;Artemia&lt;/i&gt; is finally solved with rice bran, in fact a waste-product which is available at a very low price in many countries all over the world.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3696

Supplementation of lipid emulsions to algal diets in the hatchery rearing of bivalves
Provedor de dados: 27
Autores: Coutteau, P.; Caers, M.; Curé, K.; Gajardo, G.
The success of hatchery production of bivalves remains highly unpredictable and mortalities are often attributed to deficiencies in certain nutritionally important components. Several studies have implicated the importance of lipids, in particular triglycerides, in the early life stages as a source of energy and essential fatty acids. Experimental diets used so far in bivalve nutrition studies are either heavily polluting the water or too complex to prepare on a regular basis in a hatchery. Self emulsifying concentrates of marine oils are off-the-shell lipid supplements that may be acceptable for bivalves. A series of studies were performed with different species and life stages to evaluate the potential use of these lipid emulsions as a supplement for...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2928

Effect of different light regimes on the docosahexaenoic acid (DHA) content of &lt;i&gt;Isochrysis&lt;/i&gt; aff. &lt;i&gt;galbana&lt;/i&gt; (clone T-ISO)
Provedor de dados: 27
Autores: Tzovenis, I.; De Pauw, N.; Sorgeloos, P.
The culture of &lt;i&gt;Isochrysis&lt;/i&gt; aff. &lt;i&gt;galbana&lt;/i&gt; Green (T-ISO) in hatcheries is promoted for its high docosahexaenoic acid (DHA) content which favours the successful rearing of aquatic larvae. In this paper we identified the need for well-defined culture conditions of microalgae if sufficient DHA content is the final goal. Using photoperiods of 24:0h, 12:12h and 16:8h L/D combined with photon flux densities (PFD's) of 110, 220 and 460 µE m&lt;sup&gt;-2&lt;/sup&gt; s&lt;sup&gt;-1&lt;/sup&gt;, batch cultures of T-ISO were sampled for DHA content in the exponential as well as the post-exponential (light-limited) growth phase. The various light regimes resulted in differences of DHA content of T-ISO revealing influences and strong...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhodomonas salina.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2979

A reappraisal of the systematics of the Monocelididae (Platyhelminthes, Proseriata): inferences from rDNA sequences
Provedor de dados: 27
Autores: Litvaitis, M.K.; Curini-Galletti, M.C.; Martens, P.M.; Kocher, T.D.
The current classification system for the Monocelididae which is based on the character "presence or absence of an accessory prostatoid organ" divides the family into two subfamilies, namely the Minoninae and the Monocelididinae. However, other characters relating to the structure of the male copulatory bulb and to karyotypes do not support this division. Monocelidid male copulatory bulbs can be either of the simplex or the duplex-type, and if this character is mapped onto the current classification, then both subfamilies contain species with either type of copulatory bulb. We therefore decided to construct an independent phylogeny for the Monocelididae using nucleotide-sequence data of the gene coding for the 26/28S rDNA. Distance and parsimony-based...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Monocelididae.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3015

Variability and productivity of meiobenthos in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Heip, C.H.R.; Herman, R.; Vincx, M.
The composition and density of meiofauna in the Belgian coastal waters of the North Sea are essentially similar to those over large spatial scales. However, the impact of pollution from the Western Scheldt river is clearly reflected in a decrease in diversity on all taxonomic levels. Nematodes are the only animal group that survives in normal or even greater abundance, albeit it with lower diversity. Total meiofauna production is estimated at 1.5-2.0 g C m&lt;sup&gt;-2&lt;/sup&gt;yr&lt;sup&gt;-1&lt;/sup&gt; and equals or even greatly exceeds macrofauna production in the area.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological production Meiobenthos ANE; North Sea; Southern Bight.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3325

Determination of the toxicity of four heavy metal compounds and three carcinogens using two marine nematode species, &lt;i&gt;Monhystera microphthalma&lt;/i&gt; and &lt;i&gt;Diplolaimelloides bruciei&lt;/i&gt;
Provedor de dados: 27
Autores: Bogaert, T.; Samoiloff, M.R.; Persoone, G.
Bioassays with two marine nematode species were used to determine the toxicity of four heavy metal compounds and three carcinogens. The test using the marine species &lt;i&gt;Diplolaimelloides bruciei&lt;/i&gt; is more sensitive than the existing nematode test using the freshwater nematode &lt;i&gt;Panagrellus redivivus&lt;/i&gt; for mercury chloride and 2-acetamidofluorene, but less sensitive for methylmercury chloride, phenacetin, and 4-aminobiphenyl. The &lt;i&gt;Monhystera microphthalma&lt;/i&gt; test is less sensitive than the nematode test with &lt;i&gt;P. revivus&lt;/i&gt; for mercury chloride, selenium oxide, and cesium chloride. The range between the concentrations at which no toxic effects are observed and the concentrations at which 100%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carcinogens Heavy metals Toxicity Diplolaimelloides bruciei Monhystera microphtalma de Man; 1880 Nematoda [Nematodes].
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3262

L' épiflore des substrats de l'étage circalittoral dans la Baie de Calvi (Corse-Méditerranée): 2 . Méthodes et relevés
Provedor de dados: 27
Autores: Coppejans, E.
The author describes the methods used for the phytosociological study of the epiflora of the upper part of the circalittoral zone (-30/-68 m), mainly on loose substrate, in the Bay of Calvi (Corsica-Mediterranean Sea). A description of the 32 relevés is given and a table is added with the results of the sorting: number and cover of Chloro-, Phaeo- and Rhodophyceae, total number of species and the sum of the coverages for each rélevé.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity Flora Methodology MED; France; Corsica; Calvi Bay.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3197

Size spectra, body width and morphotypes of intertidal nematodes: an ecological interpretation
Provedor de dados: 27
Autores: Tita, G.; Vincx, M.; Desrosiers, G.
Nematode species from three intertidal assemblages (St Lawrence Estuary, Quebec, Canada) were studied in order to form an ecological interpretation of three allometric attributes: body width, size spectra, and morphotypes. The three assemblages were characterized by a very similar sediment grain median (Md) but different silt-clay proportions: A1 (upper-tidal level; Md=122 µm; silt=34.8%), A3 (mid-tidal level; Md=182 µm; silt=12.8%), and A5 (lower-tidal level; Md=122 µm; silt=6.8%). Silt-clay proportions were an influential factor in determining the mean nematode body width, used as a morphological discriminant between burrowing and interstitial organisms. A plot of the number of species vs the body width-classes showed two peaks: between 19.3 and 22.6 µm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Benthos; Biomass; Diversity; Meiobenthos; Transport.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7340

The biological production of marine suspended barite and the barium cycle in the Western Mediterranean Sea
Provedor de dados: 27
Autores: Dehairs, F.A.; Lambert, C.E.; Chesselet, R.; Risler, N.
Suspended particulate barium was measured in the Western Mediterranean along 4 profiles sampled during the PHYCEMED 1 cruise in 1981. The non-terrigenous fraction of particulate barium (i.e. excess Ba; Ba&lt;sub&gt;xs&lt;/sub&gt;) can account for up to 96 % of the total barium. This fraction follows the barite settling and dissolution rate model we described earlier for the Atlantic Ocean, conforming barite as the carrier of excess barium. We propose that these Ba&lt;sub&gt;xs&lt;/sub&gt; concentrations, which are higher in the Western Mediterranean than in the overall Atlantic, may represent an adaptation of the microplankton to the high densities and density gradients of surface Mediterranean waters. A mass-balance for Ba in the Mediterranean Sea shows:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Barite Barium Suspended inorganic matter MED; Western Mediterranean.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3253

Energietransferten in de Spuikom, werkzaamheden in 1974
Provedor de dados: 27
Autores: Polk, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7991

Microplankton de la Mer Flamande: 4. Les Tintinnides et cœtera
Provedor de dados: 27
Autores: Meunier, A.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Holocene Nannoplankton Picoplankton Dinoflagellata Protozoa Prymnesiophyceae Silicoflagellata Tintinnidae ANE; Belgium.
Ano: 1919
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5293

Hatching, survival, activity and penetration efficiency of second-stage larvae of &lt;i&gt;Anguillicola crassus&lt;/i&gt; (Nematoda)
Provedor de dados: 27
Autores: Thomas, K.M.; Ollevier, F.P.
Hatching of eggs of &lt;i&gt;Anguillicola crassus&lt;/i&gt; was studied at temperatures between 5 and 30°C. Hatching occurred between 10 and 30°C and the incubation time was inversely related to temperature. Survival, spontaneous and excitatory rate of activity of 2nd-stage larvae of &lt;i&gt;A. crassus&lt;/i&gt; were also affected by temperature. The percentage of larvae eaten by &lt;i&gt;Paracyclops fimbriatus&lt;/i&gt; was not always influenced by the activity of the larvae. Penetration efficiency into the haemocoel of the intermediate host was highest for freshly hatched larvae and declined gradually with age. Completely non-active larvae were still able to penetrate, although penetration efficiency was lower.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anguillicola crassus.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2788

Elemental composition of aircraft-sampled aerosols above the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Rojas, C.M.; Van Grieken, R.; Maenhaut, W.
During the period from September 1988 to October 1989, 23 flights were carried out over the Dutch Continental Shelf of the North Sea and a total of 108 aerosol filter samples were collected. The samples were analyzed for Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Br and Pb using both particle-induced X-ray emission (PIXE) and energy-dispersive X-ray fluorescence (EDXRF). The results from PIXE exhibited better precision and lower detection limits than those from EDXRF. Therefore the further discussion and interpretation was based on the PIXE data only. It was observed that Si, S, V, Mn, Ni, Cu and Pb were enriched with respect to the earth's crust. It was seen that winds from the sector Southeast-South contributed most significantly to...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8422

Checklist of isopods (Crustacea: Peracarida: Isopoda) from the Eastern Tropical Pacific
Provedor de dados: 27
Autores: Espinosa-Pérez, M.D.C.; Hendrickx, M.E.
Literature dealing with isopods from the east Pacific is reviewed. Marine and brackish water species reported at least once in the Eastern Tropical Pacific zoogeographic subregion, which extends from Magdalena Bay, on the west coast of Southern Baja California, Mexico, to Paita, in northern Peru, are listed, and their ranges along the Pacific coast of America are provided. Unpublished records, based on material kept in the collections of the authors, were also considered, to modify previously published distribution ranges within the study area. A total of 124 species, belonging to 68 genera, is included in the checklist and new records or new distribution data are provided for 19 species. A list of names of species and subspecies currently recognized as...
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6235

&lt;i&gt;Streptocephalus sirindhornae&lt;/i&gt;, new species of freshwater fairy shrimp (Anostraca) from Thailand
Provedor de dados: 27
Autores: Sanoamuang, L.; Murugan, G.; Weekers, P.H.H.; Dumont, H.J.
&lt;i&gt;Streptocephalus sirindhornae&lt;/i&gt;, new species, the first freshwater anostracan from Thailand, is wide-spread in the northeast of the country. It is morphologically closest to the Indian species &lt;i&gt;S. dichotomus&lt;/i&gt;, but a sequence analysis of its SSU rDNA gene reveals that its closest relative is in fact the Indian species-pair &lt;i&gt;S. dichotomus-S. simplex&lt;/i&gt;, that it is probably a conserved member of the &lt;i&gt;S. dichotomus&lt;/i&gt;-group, and that it shares some relationship with the &lt;i&gt;S. torvicornis&lt;/i&gt;-group.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/119908.pdf

Onshore nursery rearing of bivalve molluscs in Belgium
Provedor de dados: 27
Autores: Claus, C.; Maeckelberghe, H.; De Pauw, N.
From October to April the growth of spat of &lt;i&gt;Ostrea edulis, Crassostrea gigas&lt;/i&gt; and &lt;i&gt;Venerupis semidecussata&lt;/i&gt; in an onshore nursery was recorded as a function of water temperature and food level. The results of this study indicate that even very eutrophic water, such as that of the Sluice Dock at Ostend, Belgium, does not provide enough microalgae to sustain growth of bivalve spat during winter, irrespective of whether the water is heated or not. It is necessary to supply additional food (cultured live algae). Food shortage for three months at higher temperature induced a stress situation resulting in high mortality rates, even after transferring all the spat into an optimal combination of temperature and food availability.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Rearing; Bivalvia; Molluscs; Belgium.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3369

Prototype run-up velocities at Zeebrugge breakwater
Provedor de dados: 27
Autores: Schüttrumpf, H.; Troch, P.A.; Oumeraci, H.; De Rouck, J.
Tipo: Info:eu-repo/semantics/book
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8495

Verspreidingspatronen en bedreigingen van de arthropodenfauna van het Schelde-estuarium
Provedor de dados: 27
Autores: Hendrickx, F.; Desender, K.; Maelfait, J.-P.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280701.pdf

Morphodynamics and sediment dynamics in the Southern Bight, Belgium
Provedor de dados: 27
Autores: Lanckneus, J.; De Moor, G.; Vande Velde, L.; De Winne, E.; Sanchez Almazo, I.; Garrido Martín, T.
The Research Unit Marine and Coastal Geomorphology of the University of Ghent has been involved for 15 years in research projects dealing with the genesis, the present-day morphodynamics and sediment dynamics and the maintenance mechanisms of sandbanks. Such a research has, in addition to the scientific value, several applications in the field of offshore engineering, management of natural resources, coastal protection and environment policy, which are discussed in the present paper.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2717

Description of &lt;i&gt;Diplolaimella dievengatensis&lt;/i&gt; sp. n. (Nematoda: Monhysteridae)
Provedor de dados: 27
Autores: Jacobs, L.; Van De Velde, M.; Geraert, E.; Vranken, G.
&lt;i&gt;Diplolaimella dievengatensis&lt;/i&gt; sp. n. was sampled from the Dievengat, a thalassic water pond situated near Knokke in North Western Belgium. The different juvenile and adult stages are described in detail. The male of D. dievengatensis is characterised by the length of the spicules ( &gt; 25 μm), the prominence of the gubernacular apophyses and the presence and position of five pairs of equal and prominent post-cloacal genital papillae. The female is characterised by the sclerotizations of the vaginal cuticle and the absence of a postvulval uterine sac.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Brackish water Taxonomy Diplolaimella dievengatensis Jacobs &amp; Vrancken; 19 Nematoda [Nematodes].
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7189

Sedimentologische kartering van mariene bodemsedimenten aan de hand van akoestische parameters
Provedor de dados: 27
Autores: De Maeyer, P.
Cartography of sea-floor sediments is troubled by the limited number of observation points. The new techniques that have come up and their use allow for calculation of acoustic parameters (speed and reflection coefficient) that can be correlated with sedimentological parameters.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acoustic properties; Cartography; Sediments.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3706

Technological improvements for the cultivation of invertebrates as food for fishes and crustaceans: 2. Hatching and culturing of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Sorgeloos, P.; Persoone, G.
Although extensive fundamental research has been performed on the brine shrimp, the yields from hatching and culturing this organism which is widely used in mariculture, can be greatly improved. By exposing the immersed cysts to light and by using a new type of hatching cylinder and separator box, greater hatching and separation efficiencies can be obtained. Controlled mass culture of brine shrimp larvae to the adult stage has been extremely difficult until now; the literature on the subject is reviewed and a new technique of high density culturing at the pilot-stage is described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina.
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3511

A time-dependent flow model for heavy metals in the Scheldt estuary
Provedor de dados: 27
Autores: De Smedt, F.; Vuksanovic, V.; Van Meerbeeck, S.; Reyns, D.
The main processes that determine the behaviour of heavy metals in the Scheldt estuary are tidal hydrodynamics, sediment transport, and sorption of heavy metals on suspended matter. The water quality model WASP is applied to simulate the spatial distribution of five heavy metals in the estuary, under average hydrodynamic and suspended sediment transport regimes. First, the hydrodynamical part of the model is constructed and the results are verified by comparison with measured water levels and flow velocities. Secondly, a salt transport model is set up in order to evaluate the hydrodynamical dispersive mixing characteristics. Thirdly, a suspended sediment transport model is constructed and finally a transport model for heavy metals. The simulated...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7065

A study of pigments in some developmental stages of &lt;i&gt;Aurelia aurita&lt;/i&gt; Lam
Provedor de dados: 27
Autores: Van den Branden, C.; Van den Sande, P.; Decleir, W.
Unfed polyps of &lt;i&gt;Aurelia aurita&lt;/i&gt; are white. Fed with &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; salina&lt;/i&gt; nauplii they turn to pinkish because of the canthaxanthin present in the food. The deep brown-red colour of strobila and ephyra is due to melanin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Developmental stages; Pigments; Polyps; Aurelia aurita.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3702

Sedimentation model of Eocene continental shelf deposits offshore the Belgian coast
Provedor de dados: 27
Autores: Jacobs, P.; Sevens, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Continental shelves Eocene ANE; Belgium; Belgian Coast.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2619

Observations sur l'éclosion de larves d'huîtres dans le bassin de chasse d'Ostende
Provedor de dados: 27
Autores: Polk, P.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Larval settlement Oyster culture Ostrea edulis Linnaeus; 1758 ANE; Belgium; Oostende; Sluice Dock.
Ano: 1965
URL: http://www.vliz.be/imisdocs/publications/131225.pdf

Sur &lt;i&gt;Polysiphonia banyulensis&lt;/i&gt; nov. sp. (Ceramiales, Rhodophyceae)
Provedor de dados: 27
Autores: Coppejans, E.
&lt;i&gt;Polysiphonia banyulensis&lt;/i&gt; nov. sp. (section &lt;i&gt;Oligosiphonia&lt;/i&gt;) is a species with four pericentral cells, without any cortication. The isolated erect thalii have pseudodichotomous ramifications that are markedly narrower at their base: they originate in the axils of trichoblasts. These are very large and are characterized by the very large sub-basal cell. The phyllotaxis of the trichoblasts is 1/4 but the number of segments that occur between two trichoblasts is variable. The tetraspores occur isolated or in two contiguous segments in the upper half of the thallus. The male and female gametophytes are still unknown. Collected at Banyuls-sur-Mer, Pyrénées-Orientales, France in July 1974.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3541

Calculations of results in grazing experiments using the counting method
Provedor de dados: 27
Autores: Tackx, M.L.M.; Van de Vrie, E.M.
Different formulae used in the literature for calculation of ingestion rates are reviewed. Their applicability is discussed in relation to two criteria: the occurrence of saturation of the feeding and/or growth of the food particles. It is shown by simulations that the differences in results obtained by calculating ingestion following a linear or an exponential model are restricted to a few percent. Calculation of ingestion rates by substantial over- or underestimation depending on the growth constant of the food particles and the grazing time.The formula I = Vk(C&lt;sub&gt;zt&lt;/sub&gt;C&lt;sub&gt;zo&lt;/sub&gt;e&lt;sup&gt;kt&lt;/sup&gt;)/N(I-e&lt;sup&gt;kt&lt;/sup&gt;) is proposed for the calculation of ingestion rates under saturated circumstances.It...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food intake; Food intake; Grazing; Ingestion; Mathematical analysis; Measuring devices; Phytoplankton; Zooplankton.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3212

Drug assimilation in the tissue of European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) fry delivered orally through bioencapsulation
Provedor de dados: 27
Autores: Gapasin, R.S.J.; Nelis, H.; Chair, M.; Sorgeloos, P.
Assimilation levels of the antibacterials trimethoprim (TMP) and sulfamethoxazole (SMX) in sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) fry tissue administered orally were investigated. A 1:5 TMP and SMX combination incorporated in oil emulsion (Selco) at 20% and 40% concentrations (w/w) were bioencapsulated in &lt;i&gt;Artemia&lt;/i&gt; (Instar II) nauplii. Chemotherapeutics-loaded ('medicated') nauplii were fed to the sea bass fry and drug concentration in the tissue were analysed by high-performance liquid chromatography (HPLC). Fish fed 40% 'medicated' &lt;i&gt;Artemia&lt;/i&gt; assimilated significantly higher levels of chemotherapeutics compared with those fed 20% 'medicated' &lt;i&gt;Artemia&lt;/i&gt; . Chemotherapeutics given at 40% reached...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2964

The new geological map of Northwestern Flanders, Southern Bight North Sea: techniques and methodology
Provedor de dados: 27
Autores: Jacobs, P.; De Ceukelaire, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geological maps Methodology ANE; North Sea; Southern Bight.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2991

A new thalassocypridine genus (Crusacea, Ostracoda) from brackish waters in the Indian and Pacific Oceans, with the description of a new species
Provedor de dados: 27
Autores: Wouters, K.
&lt;i&gt;Mangalocypria&lt;/i&gt;, a new genus of the tribe Thalassocypridini, is described, with a new species, and two previously described species, from Papua New Guinea, the Comoros and Indonesia. The new genus has a remarkable set of characters separating it from other members in the tribe: thin-shelled, translucent and smooth valves, V-process of lower lip developed as a rake, and postero- distal claw of furca fixed to shaft without a joint. The affinities of &lt;i&gt;Mangalocypria&lt;/i&gt; gen. nov. with other genera is discussed, and some taxonomical problems in the tribe Thalassocypridini are commented upon. The diagnostic value of incompletely differentiated Zenker organs of premature males is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology New genera New species Taxonomy Mangalocypria Ostracoda ISEW; Indonesia ISEW; Papua New Guinea ISW; Comoro I.
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/303554.pdf

Effects of hydrogen peroxide treatment in &lt;i&gt;Artemia&lt;/i&gt; cysts of different geographical origin
Provedor de dados: 27
Autores: Van Stappen, G.; Lavens, P.; Sorgeloos, P.
Short-term treatment with peroxide solutions has been tested as a chemical way to break the diapause of &lt;i&gt;Artemia&lt;/i&gt; cysts of different species and geographical strains. The methodology was further standardized by analyzing the impact of the cyst hydration level and the application conditions (concentration, duration, temperature) on the hatching percentage. The peroxide treatment was most effective in deactivating diapause when applied on fully hydrated cysts, and showed a quantitative nature: a maximal positive effect was obtained for specific combinations of peroxide concentration and exposure time. The peroxide effect was preserved after processing and storage of treated cysts. The biochemical mechanisms possibly involved in induction and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=321

Waterboatmen, and testing for Lotka-Volterra-type interactions
Provedor de dados: 27
Autores: Bergmans, M.
A previous paper by Istock, in which this author claims to have successfully applied the Lotka-Volterra model to his observations on corixid population dynamics, is criticised for the shortcomings in evidence cited to support the model's fit with the data. It is contended that the dynamic behaviour of the system of Hesperocorixa lobata - Sigara macropala interaction is not in accordance with the Lotka-Volterra model. ThIs brief critique is followed by comments by istock in reply to the points raised in Bergmans' letter.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Models; Population dynamics; Corixidae.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3600

Improvements in the decapsulation technique of &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Bruggeman, E.; Sorgeloos, P.; Vanhaecke, P.
Because bleaching powder is the cheapest source of hypochlorite in many countries of the world, a decapsulation procedure has been worked out in which technical calciumhypochlorite Ca(OCl)&lt;sub&gt;2&lt;/sub&gt; is utilized.A standard procedure has been developed for the deactivation of the chlorine residues adsorbed on the decapsulated cysts. Proper dehydration and storage of the decapsulated cysts assure maximum viability of the embryos in diapause. A prototype system for routine decapsulation and processing of large quantities of cysts is proposed.Beneficial effects of the decapsulation process on both the hatching percentage and the individual dry weight of the hatched nauplii are discussed in detail.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3611

Microplankton de la Mer Flamande: 3. Les Péridiniens
Provedor de dados: 27
Autores: Meunier, A.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Holocene Nannoplankton Picoplankton Dinoflagellata Peridiniaceae ANE; Belgium.
Ano: 1919
URL: http://www.vliz.be/imisdocs/publications/249021.pdf

Belgium extends its territorial sea up to 12 nautical miles
Provedor de dados: 27
Autores: Franckx, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/277142.pdf

Redescription and morphological variability of &lt;i&gt;Darwinula stevensoni&lt;/i&gt; (Brady &amp; Robertson, 1870) (Crustacea, Ostracoda)
Provedor de dados: 27
Autores: Rossetti, G.; Martens, K.
The species &lt;i&gt;Darwinula stevensoni&lt;/i&gt; is extensively redescribed. Morphological variability of both valves and soft parts is assessed in several geographical and climatically distant populations and is found to be minimal or non-existant. Only size significantly varies between populations and this can be attributed to the differences in ambient temperatures during the larval development. Number and shape of muscle scars also vary, but this both within and between populations. Valve shape and chaetotaxy of limbs are remarkably constant. One female from an Italian population has aberrant Mx2-palps, but this specimen is considered a teratological case. Earlier records of males of &lt;i&gt;D. stevensoni&lt;/i&gt; and the taxonomic position of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Taxonomy; Darwinula stevensoni; Ostracoda.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303568.pdf

Modeling &lt;sup&gt;210&lt;/sup&gt;Pb-derived mixing activity in ocean margin sediments: diffusive versus nonlocal mixing
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Middelburg, J.J.; Heip, C.H.R.; deStigter, H.S.; van Weering, T.C.E.; Epping, E.; Helder, W.
The influence of sediment mixing on activity versus depth profiles of the radionuclide &lt;sup&gt;210&lt;/sup&gt;Pb in the upper 20 cm of the sediments has been investigated along a depth transect (208 m-4500 m, 17 stations) in the OMEX study area (Goban Spur, NE Atlantic Ocean). A hierarchical family of bioturbation/nonlocal exchange models was derived. Each member of the hierarchy includes all processes of the previous model, and adds a one- or two-parameter process. The significance of the additional parameters is tested using a one-tailed &lt;i&gt;F&lt;/i&gt;-test. It was found that (1) in five cases there is a significant improvement when direct injection of part of the flux into deeper sediment layers (nonlocal exchange) is added to the diffusive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical kinetics Continental margins Diffusion Lead 210 Modelling Sediment mixing ANE; Goban Spur.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8450

The distribution of benthic macrofauna in the Dutch sector of the North Sea in relation to the micro distribution of beam trawling: final report 1998
Provedor de dados: 27
Autores: Bergman, M.J.N.; van Santbrink, J.W.; Buijs, J.; Craeymeersch, J.A.; Piet, G.J.; Rijnsdorp, A.D.; Laban, C.; Zevenboom, W.
Tipo: Info:eu-repo/semantics/book
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=761

The use of decapsulated cysts of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; as direct food for carp &lt;i&gt;Cyprinus carpio&lt;/i&gt; L. larvae
Provedor de dados: 27
Autores: Vanhaecke, P.; De Vrieze, L.; Tackaert, W.; Sorgeloos, P.
Decapsulated &lt;i&gt;Artemia&lt;/i&gt; cysts have been evaluated as a direct food source for larvae of the carp &lt;i&gt;Cyprinus carpio&lt;/i&gt; L. All decapsulated cyst diets gave excellent survival of carp larvae during the first two weeks of culturing. Unlike traditionally brine-stored decapsulated cysts, dried &lt;i&gt;Artemia&lt;/i&gt; embryos provided growth results comparable to those obtained with freshly hatched &lt;i&gt;Artemia&lt;/i&gt; nauplii. Furthermore, except for &lt;i&gt;Artemia&lt;/i&gt; embryos that lost their hatchability after long-term storage in air, several other inactivation treatments, simulating improper harvesting and processing of cysts, did not produce a significant decrease in the nutritional quality of the decapsulated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brine shrimp culture Cysts Diets Fish culture Fish larvae Artemia Cyprinus carpio Linnaeus; 1758.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2908

The size structure of nematode assemblages along a Mediterranean deep-sea transect
Provedor de dados: 27
Autores: Soetaert, K.; Heip, C.H.R.
The nematode assemblages along a deep-sea transect in the Mediterranean are composed of individuals that are as small as those found in other areas at much greater depth. This may be related to the low surface primary production since chloroplastic pigment equivalent (CPE) values in the sediments are low as well. A significant decrease of both nematode size and sedimentary CPE values with increasing water depth was found. At all water depths average nematode length increases with depth in the sediment (0-2 cm) due to the decreasing abundance of smaller nematodes.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8470

d&lt;sup&gt;13&lt;/sup&gt;C of Southern Ocean suspended organic matter during spring and early summer: Regional and temporal variability
Provedor de dados: 27
Autores: Dehairs, F.A.; Kopczynska, E.; Nielsen, C.; Lancelot, C.; Bakker, D.; Koeve, W.; Goeyens, L.
Observations are presented for stable carbon isotope abundance (&amp;#x3b4;&lt;sup&gt;13&lt;/sup&gt;C) and organic carbon and nitrogen content of suspended organic matter from the Southern Ocean (Circumpolar Current and Polar Front) during spring and early summer. The Polar Front Zone was characterized by elevated plankton biomasses and phytoplankton activity, which also increased significantly over the one-month investigation period. From the beginning of the phytoplankton bloom &amp;#x3b4;&lt;sup&gt;13&lt;/sup&gt;C values of suspended organic matter in the Polar Front were high, exceeding values predicted from the relationship with CO&lt;sub&gt;2(aq)&lt;/sub&gt; concentration observed in other areas of the Southern Ocean. Later in the season...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10202

A new test system for the evaluation of toxic levels of liposoluble products in the aquatic food chain using &lt;i&gt;Artemia&lt;/i&gt; and &lt;i&gt;Mysidopsis bahia&lt;/i&gt; as experimental animals
Provedor de dados: 27
Autores: Van Sprang, P.; Léger, P.; Sorgeloos, P.
A new test system is described for the evaluation of toxic levels of liposoluble products in the aquatic food chain using &lt;i&gt;Artemia&lt;/i&gt; and &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (M.) as experimental animals. For this, freshly released juveniles (&lt;24h old) of &lt;i&gt;M. bahia&lt;/i&gt; are transferred to the experimental bioassay test system, cultured under standard conditions and fed 24h old purposely contaminated &lt;i&gt;Artemia&lt;/i&gt; nauplii. After 11 days, data on survival, reproductive characteristics, individual length and dry weight are recorded and treated statistically.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2910

International study on &lt;i&gt;Artemia&lt;/i&gt; : 53. Morphological study of &lt;i&gt;Artemia&lt;/i&gt; with emphasis to Old World strains: 1. Bisexual populations
Provedor de dados: 27
Autores: Triantaphyllidis, G.; Criel, G.R.J.; Abatzopoulos, T.J.; Sorgeloos, P.
A detailed morphological and allometrical study was performed with adult males and females of eleven bisexual populations of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; . Multivariate procedures, discriminant and cluster analysis, allowed to separate and group together populations which exhibit great genetic similarities. The eleven populations studied form four distinct groups: the &lt;i&gt;A. franciscana&lt;/i&gt; group, the &lt;i&gt;A. tunisiana&lt;/i&gt; group, the &lt;i&gt;A. urminiana&lt;/i&gt; group and a broader group which includes Eastern Old World populations. Scanning electron microscopy revealed differences in the male genital organs of an &lt;i&gt;A. tunisiana&lt;/i&gt; population by lacking a medial protuberance in the base of the penes while...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2973

Harpacticoid copepod community structure in two North Sea estuaries in relation to pollution
Provedor de dados: 27
Autores: Van Damme, D.; Heip, C.H.R.; Herman, R.; Vaeremans, M.
The harpacticoid copepod assemblages of two estuaries in the Netherlands, the Westerschelde and the Eems-Dollard, are compared. Both estuaries have similar physical characteristics but the Westerschelde is much more polluted than the Eems-Dollard. Harpacticoid copepod assemblages in both estuaries are similar in terms of species composition. However, there is a striking difference in quantitative characteristics : the highest annual averages of density, biomass and diversity in the Westerschelde are below the lowest annual averages in the Eems-Dollard estuary. Because both estuaries are extensively monitored, data concerning many possible causes of this difference could be compared. It is argued that it is the high load of heavy metals in the Westerschelde...
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Estuaries Pollution Harpacticoida ANE; Netherlands; Ems-Dollard Estuary ANE; Netherlands; Westerschelde.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7005

The nutritional value of &lt;i&gt;Artemia&lt;/i&gt;: a review
Provedor de dados: 27
Autores: Léger, P.; Bengtson, D.A.; Sorgeloos, P.; Simpson, K.L.; Beck, A.D.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3180

Sequential determination of a combined gamma/ß and pure ß-emitter by gamma and liquid scintillation counting: application to the transport of metals across fish gills
Provedor de dados: 27
Autores: Van Ginneken, L.; Blust, R.
A combined gamma scintillation/liquid scintillation technique for the sequential determination of two radioactive tracers is described. The method was developed using a combined gamma/ß-emitter (&lt;sup&gt;57&lt;/sup&gt;Co) and a pure ß-emitter (&lt;sup&gt;45&lt;/sup&gt;Ca). First, the &lt;sup&gt;57&lt;/sup&gt;Co radioactivity was determined by counting the samples in a gamma scintillation analyzer in the energy region 80-165 keV. Next, the samples were counted in a liquid scintillation analyzer. Only one energy region was used to count both isotopes to maximize the counting efficiencies. From the difference between quenched and unquenched ß-spectra, the counting region was set from 0 to 256 keV. The counting efficiency was related to a quench-indicating...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2650

Effect of heat treatment on the nutritional quality of decapsulated &lt;i&gt;Artemia&lt;/i&gt; cysts as food for African catfish &lt;i&gt;Clarias gariepinus&lt;/i&gt; larvae
Provedor de dados: 27
Autores: García-Ortega, A.; Van Hoornyck, A.; Segner, H.; Coutteau, P.; Verreth, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Clarias gariepinus.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2563

Taxonomic revision of the recent and Holocene representatives of the Family Darwinulidae (Crustacea, Ostracoda), with a description of three new genera
Provedor de dados: 27
Autores: Rossetti, G.; Martens, K.
The Darwinulidae, the only surviving family of the superfamily Darwinuloidea, are revised and 28 extant species are retained. Twenty-six species (2 of which as yet formally undescribed) are allocated to 5 genera, 3 of which are here described as new; 2 species have an uncertain position within the family because of their insufficient original description are listed here as &lt;i&gt;species inquirendae&lt;/i&gt;. New genera are characterised on combinations of soft part and valve characters, but the chaetotaxy of the limbs seems most conservative and most suitable the identification of genera. &lt;i&gt;Darwinula&lt;/i&gt; s.s. and &lt;i&gt;Microdarwinula&lt;/i&gt; are, with regard to recent species, monospecific.&lt;i&gt;Alicenula&lt;/i&gt; nov. gen. is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal fossils; Holocene; New genera; Phylogeny; Taxonomy; Alicenula; Darwinulidae; Ostracoda; Penthesilenula; Vestalenula.
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/266663.pdf

The metabolic status of diapause embryos of &lt;i&gt;Artemia franciscana&lt;/i&gt; (SFB)
Provedor de dados: 27
Autores: Clegg, J.S.; Drinkwater, L.E.; Sorgeloos, P.
The brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; franciscana&lt;/i&gt; is widely used in aquaculture and basic research in areas ranging from molecular biology to evolution and ecology. A key of its life history involves the production of encysted embryos whose development is halted (enters diapause) at the gastrula stage. These shelled embryos are released into the aqueous environment where diapause continues until terminated by suitable conditions that produce an "activated embryo", which then can resume development when conditions permit. Very little is known about the metabolism of diapause embryos, in contrast to activated embryos, which have been studied extensively. We have examined selected features of metabolism in diapause embryos produced in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diapause; Embryos; Metabolism; Artemia franciscana.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2924

Temperature and salinity constraints on the life cycle of two brackish-water nematode species
Provedor de dados: 27
Autores: Moens, T.; Vincx, M.
The present study investigates the influence of salinity and temperature on the life history of two estuarine bacterivorous nematode species, &lt;i&gt;Pellioditis marina&lt;/i&gt; and &lt;i&gt;Diplolaimelloides meyli&lt;/i&gt;, isolated from the mesohaline zone of the Westerschelde Estuary, SW Netherlands. Gravid females and adult males were inoculated in petri dishes containing agar layers of nine (for &lt;i&gt;P. marina&lt;/i&gt;) or five (for &lt;i&gt;D. meyli&lt;/i&gt;) different salinities, from almost freshwater to higher than marine, and incubated at a temperature of 20°C, to study the impact of salinity; agar layers with a salinity of 20‰, incubated under each of six different temperatures from 5 to 30°C, served to study the effect of temperature....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematoda [Nematodes].
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7421

Meiobenthos as a tool in the assessment of marine environmental quality
Provedor de dados: 27
Autores: Heip, C.H.R.
The assessment of the impact of pollution on the marine environment depends on the possibility of prediction either by comparison or more ideally by the analysis of time series which are long enough. Obtaining data for the construction of these time series should be one of the principal goals of monitoring. Parameters which are measured should have a low variability in time and in space or low frequency. The analysis of meiobenthic communities in the North Sea and the adjacent estuaries shows that harpacticoid copepods are especially suitable as the number and the nature of the species are stable and density, biomass, and diversity are characterized by the absence of variance in the high frequencies. Nematodes, though overwhelmingly abundant, are more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental assessment; Meiobenthos; Quality control.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3682

Ecometabolism of a shallow marine lagoon at Ostend (Belgium): 2. Zooplankton dynamics
Provedor de dados: 27
Autores: Podamo, J.
The food chain of plankton at the Sluice-Dock is reduced to the simple system "producers-primary consumers". The role of zooplankton is most important only for a short time, namely in May, when it restricts the development of phytoplankton by its grazing activity, and becomes the main source of nutrients due to its excretory activity. After the disappearance of most of the zooplankton biomasses, caused by a mortality that is not due to predation, the phytoplankton can again develop. At other times of the year, the zooplankton activities such as production, grazing, excretion, and respiration only represent 1% of the total plankton activity.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3537

Seabirds seen during a return voyage from Belgium to Greenland in July
Provedor de dados: 27
Autores: Joiris, C.
Between 23 June and 1 August 1974, I sailed with the yacht "Atalante" from Nieuport (Belgium), along the east coast of Great Britain, to Thorshavn (Faeroes), several points along the east and north-east coasts of Iceland, then to Angmagssalik in Greenland and back, via Reykjavik, the Vestmann Islands (Iceland) and Edinburgh (Scotland) to Nieuport. Our speed was about 9 knots (17km/h). Birds were recorded during standard one-hour observation periods (in fractions of a quarter of an hour), from a point situated at the rear of the yacht, about 1.5 m above sea-level. They could be seen in all directions but the visibility was rather poor forwards. Although engaged in other tasks outside of these standard procedures, I was sometimes able to record the number of...
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3553

Zooplankton grazing pressure in the Oosterschelde (the Netherlands)
Provedor de dados: 27
Autores: Tackx, M.; Bakker, C.; Van Rijswijk, P.
Grazing activity by the dominant zooplankton species in the Oosterschelde (SW Netherlands) was studied as part of an ecological survey accompanying the construction of a storm-surge barrier at the mouth of this tidal inlet. At station WEST, situated at the mouth, potential grazing pressure by the zooplankton amounted to 6% d&lt;sup&gt;-1&lt;/sup&gt; of the phytoplankton standing stock and 18% of the primary production. At station EAST, in the inland part, 16% of the phytoplankton standing stock and 11% of the primary production was potentially consumed daily. Because the dominant zooplankton species in the inland part (&lt;i&gt;Acartia&lt;/i&gt; spp. and cirriped nauplii) tended to feed more on small particles than the dominant species in the seaward part...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding behaviour Pressure effects Zooplankton ANE; Netherlands; Oosterschelde.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3101

The cycle of activity in the accessory nidamental glands from cephalopods
Provedor de dados: 27
Autores: Richard, A.; Van den Branden, C.; Decleir, W.
The reproductive system of female cephalopods includes a glandular system (oviduct glands and nidamental glands), which develops considerably during sexual maturation and which plays an important part in the formation of the different egg membranes. It is generally uncoloured. An exception are the nidamental glands in &lt;i&gt;Nautilus pompilius&lt;/i&gt; which are composed of opaque yellowish or yellowish-green tissue (Ref. 1). Moreover all Sepioidea and Myopsida and &lt;i&gt;Ctenopteryx&lt;/i&gt;, a species belonging to the Oegopsida (Ref.2) possess accessory nidamental glands. The most striking property of these glands is their intense coloration varying from yellow to orange and red.  This paper is a comparative study of the accessory nidamental glands...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endocrine systems; Glands; Cephalopoda.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3609

Zeebrugge Port extension sediment transport: measurement on and off the Belgian coast by means of tracers
Provedor de dados: 27
Autores: Bastin, A.; Malherbe, B.; Caillot, A.
An extensive program of tracer experiments was carried out for calculating sediment transport in the vicinity of the Port of Zeebrugge where extension operations are in progress. Offshore radioactive bottom tracers were used for studying the sand transport along the beaches where erosion problems exist. On the beach itself fluorescent tracers were used. For the evaluation of the silting-up rate of the access channels to the harbour a series of radioactive bottom and suspension tracers were tracked &lt;i&gt;in situ&lt;/i&gt;. For determining the efficiency of future dumping grounds a combination of bottom tracers and suspension tracers was used. In total, 18 experiments with radioactive tracers were carried out and 9 with fluorescent ones.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Belgian Coast.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/128948.pdf

An indexed bibliography on the common shrimp, &lt;i&gt;Crangon crangon&lt;/i&gt; (L.), complementary to Tiews, 1967
Provedor de dados: 27
Autores: Redant, F.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Bibliographies Crangon crangon (Linnaeus; 1758) [Brown shrimp].
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/129041.pdf

Organochlorines in different fractions of sediments and in different planktonic compartments of the Belgian continental shelf and the Scheldt estuary
Provedor de dados: 27
Autores: Delbeke, K.; Joiris, C.R.; Bossicart, M.
PCB levels in sediments (bulk and fraction &lt;63µm), suspended matter and zooplankton from the Belgian continental shelf of the North Sea and the Scheldt estuary were educated in relation to their organic carbon content, their lipid content and, for sediments, their particle size distribution. PCB accumulation mechanisms are discussed, considering the importance of direct contamination (absorption onto the cell surfaces, absorption through the cell walls and partitioning into the cell lipids) for suspended matter and sediments, and of indirect contamination through the food for zooplankton. Geographical and seasonal variations are described.
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2820

A rapid method to evaluate nematode density
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3493

Larves de Cérianthaires du Golfe de Guinée
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larvae Cerianthidae ASE; Guinea Gulf.
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/294743.pdf

Competition between the sibling species &lt;i&gt;Tisbe holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt; (Harpacticoida)
Provedor de dados: 27
Autores: Bergmans, M.; Janssens, P.P.M.
The influence of the salinity on the performance of the sibling species &lt;i&gt;Tisbe holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt; in pure and mixed cultures was studied, using laboratory stocks adapted to 32 pro mille for over 175 generations. Cohort studies show that &lt;i&gt;T. holothuriae&lt;/i&gt; has higher growth rates (R&lt;sub&gt;0&lt;/sub&gt; and r) at 32 pro mille, &lt;i&gt;T. battagliai&lt;/i&gt; at 20 pro mille. The latter's life cycle is much less affected by the difference in salinity. 'De Wit' replacement series were used to study competitive interactions. Without water renewal, &lt;i&gt;T. holothuriae&lt;/i&gt; eliminates its sibling species in less than 2 generations, apparently through chemical interference. With water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Competition; Growth; Marine crustaceans; Phenology; Salinity; Sexual reproduction; Sibling species; Harpacticoida; Tisbe battagliai; Tisbe holothuriae.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3121

New Tetragonicipitidae (Copepoda, Harpacticoida) from the Yucatecan continental shelf (Mexico), including a revision of the genus &lt;i&gt;Diagoniceps&lt;/i&gt; Willey
Provedor de dados: 27
Autores: Fiers, F.
Representatives of the family Tetragonicipitidae encountered in samples from marine and lagoonal localities on the Yucatecan continental shelf are described. &lt;i&gt;Ph. yucatanensis&lt;/i&gt; n. sp. is added to the &lt;i&gt;furciger&lt;/i&gt; species-group of the genus &lt;i&gt;Phyllopodopsyllus&lt;/i&gt;. Resulting from the discovery of four new species which, at first sight, show close resemblance with the species known in the genus &lt;i&gt;Diagoniceps&lt;/i&gt; Willey, a review of the genus is presented. Initially, the type-species of the genus &lt;i&gt;Diagoniceps, D. laevis&lt;/i&gt; Willey, is redescribed in detail based on material from the Bahamas and specimens reported previously from Bermuda, type-region. Three out of the six previously...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/303549.pdf

The use and nutritional value of &lt;i&gt;Artemia&lt;/i&gt; as a food source
Provedor de dados: 27
Autores: Léger, P.; Bengtson, D.A.; Simpson, K.L.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutritive value; Artemia.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3246

Distribution, transport and fate of Bi, Cu, Cd, Hg, Pb, Sb and Zn in the Belgian coastal marine environment. Part IV: The river Scheldt as a transport route of heavy metals to the sea
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Wartel, S.; Dehairs, F.A.; Decadt, G.; Bogaert, M.; Gillain, G.; Dedeurwaerder, H.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/286409.pdf

Performance of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; broodstock fed diets with different fatty acid composition
Provedor de dados: 27
Autores: Cavalli, R.O.; Lavens, P.; Sorgeloos, P.
The effect of linoleic acid (18:2n-6) and n-3 highly unsaturated fatty acids (HUFA) on the reproductive performance and offspring quality of the freshwater prawn &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; was evaluated in a 180-day trial. Three isonitrogenous and isolipidic diets containing different levels of fatty acids, high 18:2n-6 and n-3 HUFA concentrations, high 18:2n-6 and low n-3 HUFA, and low 18:2n-6 and n-3 HUFA, were fed ad libitum to three groups of six females. Fecundity was improved by the addition of higher amounts of 18:2n-6 (from 3 to 13 mg g&lt;sup&gt;-1&lt;/sup&gt; DW). As a consequence of higher fecundity, smaller eggs were obtained most likely because the number of oocytes competing for a limited amount of yolk was higher. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brood stocks; Fecundity; Feeding experiments; Polyunsaturated fatty acids; Prawn culture; Macrobrachium rosenbergii.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4006

Notes sur les &lt;i&gt;Orchomene&lt;/i&gt; (Amphipodes, Lysianassidae) de l'Ocean Austral: 1. Description d'&lt;i&gt;Orchomene hureaui&lt;/i&gt; n. sp. de Terre Adélie
Provedor de dados: 27
Autores: De Broyer, C.
A new Antarctic lysianassid amphipod, Orchomene hureaui sp.n. from Addlie Land is described and illustrated. The male is unknown. The 2 females were from the stomach of an Adelie penguin. Its epistome is straight and is just in front of the upper lip. The lateral cephalic lobes are rounded and eyes are present. Coxa I is trapezoidal and wide distally, the carpus of gnathopod I shorter than propodite and with no postero-distal lobe, the palm is transverse, slightly convex and deeply toothed. Gnathopod II is subchelate and coxa V has subequal inferior lobes. Uropod III has long setose branches and the telson is divided. The ecology and relations with other Orchomene spp are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Orchomene hureaui PSE; Antarctica; George V Land; Adelie Land.
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/295211.pdf

&lt;i&gt;Acrochaetium secundatum&lt;/i&gt; (Lyngb.) Näg. (Acrochaetiales) en &lt;i&gt;Aglaothamnion scopulorum&lt;/i&gt; (C. Ag.) G. Feldm.-Maz. var. &lt;i&gt;polyspermum&lt;/i&gt; (C. Ag.) Halos (Ceramiales), "nieuwe" roodwieren langs de Belgische kust
Provedor de dados: 27
Autores: Coppejans, E.; De Vos, D.
The Rhodophyceae &lt;i&gt;Acrochaetium secundatum&lt;/i&gt; (Lyngb.) Näg. and &lt;i&gt;Aglaothamnium scopulorum&lt;/i&gt; (C. Ag.) G. Feldman.-Maz. var. &lt;i&gt;polyspermum&lt;/i&gt; (C. Ag.) Halos have frequently been collected along the pier of Zeebrugge (Belgium) in 1977, 1978 and 1979. Both taxa have not been mentioned along the Belgian coast until now. The problem of their distinction from closely related species is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Acrochaetiales Acrochaetium secundatum Aglaothamnion scopulorum Ceramiales ANE; Belgium; Belgian Coast.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3629

De afvalstromen, afkomstig van de zeevaart, in de havens van Antwerpen, Gent, Oostende en Zeebrugge: de impact van het voorstel voor een richtlijn van de Raad betreffende havenontvangstfaciliteiten voor scheepsafval en ladingresiduen
Provedor de dados: 27
Autores: Maes, F.; Buyse, A.
Tipo: Info:eu-repo/semantics/book
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5082

The influence of algal food preparation on its nutritional efficiency for &lt;i&gt;Artemia salina&lt;/i&gt; L. larvae
Provedor de dados: 27
Autores: Sorgeloos, P.
Feeding live food to aquatic invertebrates is a time consuming and very often, if not always a troublesome business for those involved in culturing problems. It has already been shown (although the number of papers on the matter is scarce), that live food such as bacteria or algae, can be stocked for future use by freezing or lyophylization. During experiments on the growth rate of larvae of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt;, we have tested several preparation methods of the same algal food (&lt;i&gt;Dunaliella&lt;/i&gt; spec.): living cells, suspensions homogenized by Ultrason, algal suspensions frozen at -25°C and suspensions slowly evaporated to dryness, followed by resuspension and homogenization. Preliminary results seem to indicate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina.
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3506

Drie copepoden, nieuw voor de Belgische fauna
Provedor de dados: 27
Autores: Heip, C.H.R.
During a research of a shallow brackish water sheet, the Dievengat, located on the territory of the region of Knokke, some copepoda were collected, amongst which three that had not previously been found in Belgium. The items originate from soil samples through means of a glass tube with a diameter of 6 cm²; it concerns a soil rich in detritus. The water is about 20 cm in depth at the location of the sample taking. Samples were taken over the period from August 1968 until May 1969. The salinity is susceptible to a relatively wide variation. Usually values between 12 promille S and 18 promille S were measured. The maximum measured was 19.03 promille S on 16/12/68 and the minimum measured 8.41 promille S on 5/5/69. According to the system of Venece, 1958, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Taxonomy Copepoda [copepods] ANE; Belgium Belgium; Knokke-Heist; Dievengat.
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/262310.pdf

Comparative serology of the marine fish pathogen &lt;i&gt;Vibrio anguillarum&lt;/i&gt;
Provedor de dados: 27
Autores: Grisez, L.; Ollevier, F.P.
The different serotyping systems, based on thermostable O antigens, reported for &lt;i&gt;Vibrio anguillarum&lt;/i&gt; and &lt;i&gt;V. ordalii&lt;/i&gt; were compared by quantitative agglutination, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and subsequent silver staining or Western blotting (immunoblotting) of purified lipopolysaccharide (LPS), using polyclonal rabbit antisera. The results demonstrate that 16 different serotypes within &lt;i&gt;V. anguillarum&lt;/i&gt; (designated 01 to 016) can be distinguished. Each of these serotypes is characterized by a distinct polysaccharide banding pattern, as revealed by silver-stained gels of purified LPS. The comparative analysis allowed a complete alignment of the different stereotypes for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pathogens; Serology; Vibrio anguillarum.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2970

Catalogue commenté des types d'Echinodermes actuels conservés dans les collections nationales belges
Provedor de dados: 27
Autores: Jangoux, M.; Massin, C.
The national zoological collections of Belgium house 434 types-specimens representing 64 nominal species of recent echinoderms (2crinoids, 21 holothuroids, 6 echinoids, 17 asteroids and 18 ophiuroids). Each species is presented (original name, current statute, museum characteristics, brief bibliography). A new synonymy is proposed for two species of asteroids.
Tipo: Info:eu-repo/semantics/article
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/303511.pdf

Chromadorida (Nematoda) from Guadeloupe and Polynesia with evidence of intersexuality
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
&lt;i&gt;Spirobolbolaimus boucherorum&lt;/i&gt; sp.n. (Microlaimidac) and &lt;i&gt;Sabatieria maboyae&lt;/i&gt; sp.n. (Comesomatidae) arc described, and &lt;i&gt;Dorylaimopsis pellucidum&lt;/i&gt; (Cobb, 1920) is discussed. Intersex specimens have been found in all three species. &lt;i&gt;Spirobolbolaimus boucherorum&lt;/i&gt; sp.n. is characterized by its multispiral amphidcal fovea, number and localization of the cervical setae arranged in six rows posterior to the amphids, and large banana-shaped sperm. &lt;i&gt;Sabatieria maboyae&lt;/i&gt; sp.n., a member of the &lt;i&gt;S. pulchra&lt;/i&gt; group, possesses long posteriorly located cervical setae and long spicules.
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7119

The genus &lt;i&gt;Batzella&lt;/i&gt;: a chemosystematic problem
Provedor de dados: 27
Autores: Van Soest, R.W.M.; Braekman, J.C.; Faulkner, D.J.; Hajdu, E.; Harper, M.K.; Vacelet, J.
Biogenetically unrelated cyclic guanidine alkaloids and pyrroloquinoline alkaloids have been reported from sponges assigned to the genus &lt;i&gt;Batzella&lt;/i&gt;. These sponges have been assigned to this genus because of their possession of a simple complement of thin strongyles in irregular plumoreticulate arrangement. Cyclic guanidine alkaloids were first reported from an alleged axinellid species from the Caribbean, &lt;i&gt;Ptilocaulis&lt;/i&gt; aff. &lt;i&gt;P. spiculifer&lt;/i&gt;, and subsequently from a second Carribean specimen identified as &lt;i&gt;Ptilocaulis spiculifer&lt;/i&gt; and at the same time from a Red Sea poecilosclerid, &lt;i&gt;Hemimycale&lt;/i&gt; sp. Closely related compounds were described from a Caribbean specimen identified...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alkaloids; Chemotaxonomy; Batzella; Poecilosclerida.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303650.pdf

Vibrios associated with routine productions of &lt;i&gt;Brachionus plicatilis&lt;/i&gt;
Provedor de dados: 27
Autores: Verdonck, L.; Grisez, L.; Sweetman, E.; Minkoff, G.; Sorgeloos, P.; Ollevier, F.P.; Swings, J.
Surveys for bacteriological analysis were carried out in 1990-1991 in two different marine fish hatcheries located in Greece and northern Spain. Samples were taken from 12 different routine productions of &lt;i&gt;Brachionus plicatilis&lt;/i&gt; before and during enrichment. Isolates were characterized by whole cell fatty acid methyl ester analysis and by BIOLOG metabolic fingerprinting. &lt;i&gt;Vibrio anguillarum&lt;/i&gt; and/or &lt;i&gt;Vibrio alginolyticus&lt;/i&gt; were dominant &lt;i&gt;Vibrio&lt;/i&gt; species in the rotifer samples taken after enrichment and rinsing, before being delivered to the fish larvae. None of the &lt;i&gt;Vibrio anguillarum&lt;/i&gt; strains belonged to the pathogenic serotypes for juvenile and adult fish.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachionus plicatilis Müller; 1786.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2984

Effect of dietary essential fatty acids on egg quality and larviculture success of the greasy grouper (&lt;i&gt;Epinephelus tauvina&lt;/i&gt; F.): preliminary results
Provedor de dados: 27
Autores: Dhert, P.; Lim, L.C.; Lavens, P.; Chao, T.M.; Chou, R.; Sorgeloos, P.
In spite of its aquaculture potential, the larval rearing of greasy grouper (&lt;i&gt;Epinephelus tauvina&lt;/i&gt;) remains problematic and is not yet commercially feasible. The low and unpredictable larval survival is due to difficulties encountered in spawning the broodstock, the small size of the larvae at first feeding, and the high sensitivity of the larvae until day 45. The nutritional requirements for the broodstock as well as for the young larvae are still enigmatical. In this presentation the impact of supplementing the highly unsaturated fatty acids (HUFA), eicosapentaenoic (EPA), and docosahexaenoic acid (DHA) to the broodstock and larval diets is illustrated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets; Fatty acids; Fish culture; Fish eggs; Fish larvae; Nutritional requirements; Survival.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2852

Clownfish as a reference model for nutritional experiments and determination of egg/larval quality
Provedor de dados: 27
Autores: Delbare, D.; Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2549

Manipulation of dietary lipids, fatty acids and vitamins in zooplankton cultures
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
&lt;ol&gt;&lt;li&gt;A wide range of species that are cultivated in commercial mariculture are planktonic during at least part of their life cycle; for example, the larval stages of shellfish (shrimp and molluscs) and the live feeds (rotifers, brine shrimp, copepods) used in the larviculture of marine fish and shellfish. Over the last decades various techniques have been developed to deliver nutrients to these zooplanktonic organisms either through artificial diets or by manipulating the composition of the live prey fed to the carnivorous stages. This paper reviews the methodology that has allowed aquaculturists to gain knowledge of nutritional requirements and may offer interesting opportunities for ecologists to verify the importance of key nutrients in...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2929

Marine chemistry
Provedor de dados: 27
Autores: Van Grieken, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2906

Preparation method for solid samples with low nitrogen content for spectrometric nitrogen-15 analysis
Provedor de dados: 27
Autores: Goeyens, L.G.; Stichelbaut, L.W.; Post, E.J.; Baeyens, W.F.J.
A new procedure for the conversion of bound nitrogen into nitrogen gas, applicable to solid material, is described. It embodies two main stages: the catalytic ammonification of the sample and the consecutive transformation of ammonium to molecular nitrogen by the modified Dumas method. The first step of the preparation is carried out in a quartz reactor, filled with granular nickel, at a temperature of 700°C, the ammonia gas produced being trapped in sulphuric acid. In the second step, this solution is neutralised, dried and subjected to the Dumas combustion.The addition of reagents does not influence the results of the measurements. Spectrometric &lt;sup&gt;15&lt;/sup&gt;N percentage abundances are converted into mass spectrometric "true"...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emission spectroscopy.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3279

Mercury and organochlorines in four sperm whales stranded on the Belgian coast, November 1994
Provedor de dados: 27
Autores: Joiris, C.R.; Holsbeek, L.; Bossicart, M.; Tapia, G.
Four sperm whales (three subadult males stranded on the Belgian coast, a fourth older male found dead at sea) were analysed for total mercury, methylmercury and organochlorines. All four were part of a total of 24 sperm whales that stranded on the North Sea coasts over a period of six months, a highly unusual phenomenon. Total mercury levels ranged from 0.5 µg/g fw in kidney and 1 in muscle, up to 15 in liver. The finding of at least 90% of the mercury in its inorganic form confirms the existence of detoxification mechanisms in the liver of cetaceans. PCB concentrations in muscle, liver, kidney and blubber ranged from 10 to 25 µg/g lipids. These results are in the same order of magnitude as literature data, which however does not imply that there is no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detoxification Mercury Social behaviour Stranding ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=837

The use of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; in biological management of solar saltworks
Provedor de dados: 27
Autores: Tackaert, W.; Sorgeloos, P.
In recent years, there has been a growing awareness of the hydrobiological aspects of the solar salt production process. Saltworks are man-managed artificial ecosystems that are highly vulnerable to biological disturbances, including uncontrolled proliferation of microalgae resulting in a reduced evaporation and contamination of the salt with gypsum and insoluble organic materials.Optimal production of solar salt, both in terms of quality and quantity, requires a well-established balance between the primary and secondary producers, with brine shrimp &lt;i&gt;Artemia&lt;/i&gt; grazing on phytoplankton constituting the major interaction. In this paper, we discuss the beneficial role of &lt;i&gt;Artemia&lt;/i&gt; in balancing the hydrobiological activity of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2786

Monitoring meiobenthos using cm-, m- and km-scales in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Li, J.; Vincx, M.; Herman, P.M.J.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7297

Effect of broodstock nutrition on the quality of turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) eggs and larvae
Provedor de dados: 27
Autores: Dhert, Ph.; Lavens, P.; Bijnens, R.; Brunel, A.; Merchie, G.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758).
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2551

Improved larviculture outputs of postlarval shrimp &lt;i&gt;Penaeus vannamei&lt;/i&gt; through supplementation of L-ascorbyl-2-polyphosphate in the diet
Provedor de dados: 27
Autores: Kontara, E.K.M.; Merchie, G.; Lavens, P.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus vannamei.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2572

Crustacea Copepoda: &lt;i&gt;Amphicrossus pacificus&lt;/i&gt; gen. et sp. nov., an erebonasterid copepod (Poecilostomatoida) from the New Caledonian continental shelf
Provedor de dados: 27
Autores: Huys, R.
A new species of Erebonasteridae, Amphicrossus pacificus, is decribed on the basis of a single female from a depth of 155 m north of New Caledonia in the Grand Passage zone. The new species is closely related to Erebonaster spinulosus Humes and for that reason the latter is transferred to the new genus Amphicrossus. Differences in body ornamentation and armature of maxilla, maxilliped and P4 serve to distinguish Amphicrossus and Erebonaster. Other noticeable discrepancies are found in the structure of the rostrum, the shape of the thoracic epimera and the design of the fifth pair of legs. A peculiar structure, the "sensory area", is shown on the posterior surface of enp-2 P2 in both Amphicrossus species which can be differentiated from each other on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera New species ISEW; New Caledonia.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/266847.pdf

Innocent passage of warships: recent developments in US-Soviet relations
Provedor de dados: 27
Autores: Franckx, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7832

Mass culture of microalgae in aquaculture systems: progress and constraints
Provedor de dados: 27
Autores: De Pauw, N.; Morales, J.; Persoone, G.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal culture; Aquaculture; Cultivation; Cultivation; Cultivation.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3263

Expéditions Antarctiques Belgo-Néerlandaises 1966-1967: Résultat d'analyse du Seston à l'aide du compteur dimentionnel de particules, I
Provedor de dados: 27
Autores: San Feliu, J.M.; Margalef, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/294749.pdf

The fate of intertidal microphytobenthos carbon: an in situ &lt;sup&gt;13&lt;/sup&gt;C-labeling study
Provedor de dados: 27
Autores: Middelburg, J.J.; Barranguet, C.; Boschker, H.T.S.; Herman, P.M.J.; Moens, T.; Heip, C.H.R.
At two intertidal sites (one sandy and one silty, in the Scheldt estuary, The Netherlands), the fate of microphytobenthos was studied through an in situ &lt;sup&gt;13&lt;/sup&gt;C pulse- chase experiment. Label was added at the beginning of low tide, and uptake of &lt;sup&gt;13&lt;/sup&gt;C by algae was linear during the whole period of tidal exposure (about 27 mg m&lt;sup&gt;-2&lt;/sup&gt; h&lt;sup&gt;-1&lt;/sup&gt; in the top millimeter at both sites). The &lt;sup&gt;13&lt;/sup&gt;C fixed by microphytobenthos was rapidly displaced toward deeper sediment layers (down to 6 cm), in particular at the dynamic, sandy site. The residence times of microphytobenthos with respect to external losses (resuspension and respiration) were about 2.4 and 5.6 d at the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Netherlands; Westerschelde; Molenplaat.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/54615.pdf

Resource competition between macrobenthic epifauna in a Kenyan &lt;i&gt;Avicennia marina&lt;/i&gt; mangrove forest
Provedor de dados: 27
Autores: Schrijvers, J.; Fermon, H.; Vincx, M.
A cage exclusion experiment was used to examine the interaction between the epibenthos (permanent and visiting) and the macroinfauna of a high intertidal Kenyan &lt;i&gt;Avicennia marina&lt;/i&gt; mangrove sediment. Densities of Oligochaeta (families Tubificidae and Enchytraeidae), Amphipoda, Insecta larvae, Polychaeta and macro-Nematoda, and a broad range of environmental factors were followed over 5 mo of caging. A significant increase of amphipod and insect larvae densities in the cages indicated a positive exclusion effect, while no such effect was observed for oligochaetes (Tubificidae in particular), polychaetes or macronematodes. Resource competitive interactions were a plausible explanation for the status of the amphipod community. This was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avicennia marina [grey mangrove].
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/316204.pdf

Intertidal zonation of macroinfauna on a dissipative, sandy beach at De Panne (Belgium): a pilot study
Provedor de dados: 27
Autores: Elliott, B.; Degraer, S.; Bursey, M.; Vincx, M.
To elucidate vertical (= from high to low water mark) macroinfaunal community patterns on little-studied Belgian dissipative sandy beaches, macroinfauna was sampled at eight stations along a seaward transect at De Panne. Mean sand particle size was 196 µm, and the beach slope was ca. 1 : 90. Nineteen species were collected (excluding non-quantitatively sampled species), nine of which were polychaetes and eight were crustaceans. Total macroinfaunal abundance per station ranged from 103 to 585 ind./ m². Polychaetes and crustaceans were numerically dominant, comprising more than 98% of total numbers. Seaward spatial distributions of abundant species were interpreted to represent three biotic zones or macroinfaunal communities, as suggested by a kite diagram,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beaches; Ecological zonation; Belgium.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/233896.pdf

Variation of ascorbic acid content in different live food organisms
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Dhert, Ph.; Dehasque, M.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
Ascorbic acid (AA) is an essential nutrient in particle and live aquafeeds. In order to better assess the needs for this nutrient during larviculture the AA content of algae, rotifers and &lt;i&gt;Artemia&lt;/i&gt; was studied with respect to their suitability at startfeeding. In general, the microalgae evaluated were rich in AA (1000-4000 µgAA/gDW), but showed a considerable variability among the different species: e.g. the concentration in &lt;i&gt;Isochrysis&lt;/i&gt; and&lt;i&gt;Chlorella&lt;/i&gt; reached values 3-to 4-fold the percentage of &lt;i&gt;Tetraselmis&lt;/i&gt; (0.11% of DW). &lt;i&gt;Brachionus&lt;/i&gt; routinely cultured on &lt;i&gt;Chlorella&lt;/i&gt; contained 2300 µg AA/gDW. Cysts of various batches and strains of...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2578

Effects of dietary vitamin C on fish and crustacean larvae
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Sorgeloos, P.
In order to assess the dietary needs for ascorbic acid (AA) at startfeeding, the AA content in the various live diets currently applied in aquaculture (algae, rotifers, &lt;i&gt;Artemia&lt;/i&gt; ) was studied. Application of boosting techniques using ascorbyl palmitate (AP) as the vitamin C source enabled the transfer of elevated levels of bioactive vitamin C (up to 2500µg AA.g DW&lt;sup&gt;-1&lt;/sup&gt;) via the live food chain into larvae of fish (&lt;i&gt;Clarias gariepinus, Dicentrarchus labrax, Scophthalmus maximus&lt;/i&gt;), shrimp (&lt;i&gt;Pennaeus vannamei&lt;/i&gt;) and prawn (&lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;). This vitamin C enrichment procedure has proven to be a valuable technique, especially for the evaluation of the effects of...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2587

Effects of uncertainties on exposure estimates to methylmercury: a Monte Carlo analysis of biomarkers of exposure biomarkers versus dietary recall estimation
Provedor de dados: 27
Autores: Sanga, R.N.; Bartell, S.M.; Ponce, R.A.; Boischo, A.A.P.; Joiris, C.R.; Pierce, C.H.; Faustman, S.M.
This article presents a general model for estimating population heterogeneity and “lack of knowledge” uncertainty in methylmercury (MeHg) exposure assessments using two-dimensional Monte Carlo analysis. Using data from fish-consuming populations in Bangladesh, Brazil, Sweden, and the United Kingdom, predictive model estimates of dietary MeHg exposures were compared against those derived from biomarkers (i.e., [Hg]hair and [Hg]blood). By disaggregating parameter uncertainty into components (i.e., population heterogeneity, measurement error, recall error, and sampling error) estimates were obtained of the contribution of each component to the overall uncertainty. Steady-state diet:hair and diet:blood MeHg exposure ratios were estimated for each population...
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6917

Biogeochemical behaviour of Cd, Cu, Pb and Zn in the Scheldt estuary during the period 1981-1983
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Elskens, M.; Gillain, G.; Goeyens, L.
Cu, Zn, Cd and Pb have been analysed in suspended matter and water samples from the Scheldt estuary, collected during five cruises between May 1982 and May 1983. In order to evaluate the overall metal behaviour in the estuary, continuous longitudinal profiles of the total, the particulate and the dissolved metal concentrations are discussed in relation to various specific physico-chemical parameters. By means of correlation and multi-regression techniques, several estuarine processes could be identified which dominate and/or control the behaviour of the individual trace metals in three distinct areas of the Scheldt estuary. The behaviour of the four selected metals was found to show some common features, but is besides this also characterised by many...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7043

Epibenthos
Provedor de dados: 27
Autores: Redant, F.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Check lists Molluscs ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288150.pdf

Meyliidae (Nematoda-Desmoscolecoidea) with four new species and two new genera
Provedor de dados: 27
Autores: Decraemer, W.; Jensen, P.
Seven Meyliidae-species are described, four of them are new: &lt;i&gt;Boucherius spinosus&lt;/i&gt; (Gerlach, 1956) comb.n., &lt;i&gt;B. floridanus&lt;/i&gt; sp. n., &lt;i&gt;Gerlachius lissus&lt;/i&gt; (Gerlach, 1956) Andrassy, 1976, &lt;i&gt;Meylia alata&lt;/i&gt; Gerlach, 1956, &lt;i&gt;M. vangoethemi&lt;/i&gt; sp. n., &lt;i&gt;Noffsingeria omeri&lt;/i&gt; gen.n., sp.n. and &lt;i&gt;N. grandiamphis&lt;/i&gt; sp.n. The different types of ornamentations of the body cuticle are considered significant features, separating the seven species in four genera, two of which were already described: &lt;i&gt;Meylia&lt;/i&gt; Gerlach, 1956 and &lt;i&gt;Gerlachius&lt;/i&gt; Andrassy,1976 and two new genera: &lt;i&gt;Boucherius&lt;/i&gt; gen.n. and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera; New species; Meyliidae.
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/100821.pdf

2&lt;sup&gt;e&lt;/sup&gt; Internationaal Congres van de Zee, Luik, 30-31 Juli en 1-2 Augustus 1939 = 2&lt;sup&gt;ième&lt;/sup&gt; Congrès International de la Mer, Liège, 30-31 juillet et 1-2 août 1939
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Ano: 1939
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7683

The autecology of &lt;i&gt;Polydora ciliata&lt;/i&gt; along the Belgian coast
Provedor de dados: 27
Autores: Daro, M.H.; Polk, P.
The life-history of &lt;i&gt;Polydora ciliata&lt;/i&gt; has been studied in the Bassin de Chasse, Ostende. Three or even four generations succeed one another during the period from April to September. Their planktonic larvae can be found throughout the year, they have a life of 12 to 14 days. Larvae from 3 to 9 segments are growing 2 segments a day, larvae from 10 to 16 segments 1 segment a day. During the first period they feed on nannoplankton or detrital particles, during the second period they are carnivorous, but also detritiphagous and phytophagous. After 3 weeks of sedentary life egg-laying takes place. When one or two broods have been produced most animals die. The eggs hatch after 1 week. The worms are detritiphagous and scrape the food directly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autecology Polydora (Polydora) ciliata (Johnston; 1838) [Bristleworm] ANE; Belgium; Belgian Coast.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3470

Sur quelques Rhodophycées rares de la côte du Boulonnais (Pas-de-Calais, France)
Provedor de dados: 27
Autores: Coppejans, E.
The author mentions 10 rarely observed Rhodophyceae from the French coasts of the Channel: &lt;i&gt;Chondria dasyphylla&lt;/i&gt;, &lt;i&gt;Griffithsia devoniensis&lt;/i&gt;, &lt;i&gt;Plumaria elegans&lt;/i&gt; (Ceramiales), &lt;i&gt;Grateloupia filicina&lt;/i&gt; (Cryptonemiales), &lt;i&gt;Phyllophora traillii&lt;/i&gt; (Gigartinales), &lt;i&gt;Scinaia forcellata&lt;/i&gt; (Nemalionales), &lt;i&gt;Cordylecladia erecta&lt;/i&gt;, &lt;i&gt;Lomentaria orcadensis&lt;/i&gt;, &lt;i&gt;Rhodymenia pseudopalmata&lt;/i&gt; var. &lt;i&gt;pseudopalmata&lt;/i&gt; and var. &lt;i&gt;ellisiae&lt;/i&gt; (Rhodymeniales). A brief morphological description is given and some anatomical details or data on the reproductive structures are added. The auto-ecology of the seaweeds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; France; Nord; Pas-de-Calais.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3614

Draconematidae and Epsilonematidae (Nematoda) from Laing Island Papua New Guinea, with one new Genus and three new species
Provedor de dados: 27
Autores: Decraemer, W.
Two new &lt;i&gt;Epsilonema&lt;/i&gt;-species are described: &lt;i&gt;E. parvospina&lt;/i&gt; sp.nov., characterized by the ornamentation of the body cuticle and the single ventral row of 3 to 5 copulatory thorns in male and &lt;i&gt;E. longispicula&lt;/i&gt; sp.nov., characterized by the ornamentation of the cuticular body rings, long spicus and two single ventral rows of copulatory thorns in male. A new genus &lt;i&gt;Triepsilonema&lt;/i&gt; with a new species &lt;i&gt;T. tripapillata&lt;/i&gt; gen. n., sp.n. is described. &lt;i&gt;Triepsilonema&lt;/i&gt; is mainly characterized by the six rows of ambulatory setae and the separate outlet for each of the three caudal glands. New information is given on &lt;i&gt;Apenodraconema spinicaudum&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/303538.pdf

On suspended barite and the oxygen minimum in the Southern Ocean
Provedor de dados: 27
Autores: Dehairs, F.A.; Goeyens, L.; Stroobants, N.; Bernard, P.; Goyet, C.; Poisson, A.; Chesselet, R.
Particulate Ba profiles were measured in the Indian sector of the southern ocean. The largest fraction (&gt;80%) of this barium is present as barite microcrystals. The profiles of total barium are characterized by a subsurface maximum between 200 and 500 m depth in the vicinity of the oxygen minimum. Highest barium values are found just south of the Polar Front, while lowest values occur close to the Antarctic Divergence. Between the divergence and the Polar front a tight inverse relationship is observed between oxygen in the oxygen minimum and barium in the barium maximum. This relationship disappears north of the Polar Front. Since suspended barite is known to be of biological origin, the correlation of barite with oxygen suggests that the observed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Barite Oxygen PS; Southern Ocean.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3076

Transfer of seston to zooplankton in marine ecosystems
Provedor de dados: 27
Autores: Tackx, M.
When considering zooplankton feeding as one of the pathways involved in the transfer of substances in marine ecosystems, it is important to study the composition and size distribution of the seston: firstly, the elements in which one is interested may be associated with different types and sizes of particles; secondly, particle size and composition are important factors in relation t o the feeding process of the zooplankton itself. High speed cinematographic studies have recently revealed that copepods use two different mechanisms for feeding. Small particles (&lt; 12 pm) are collected by continuous low amplitude movements of the second maxillae and combing of the appendages. Larger particles are detected and collected individually by means of a specific...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecosystems; Seston; Zooplankton.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3273

Biochemical and enzymatic characterization of decapsulated cysts and nauplii of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; at different developmental stages
Provedor de dados: 27
Autores: García-Ortega, A.; Verreth, J.A.J.; Coutteau, P.; Segner, H.; Huisman, E.A.; Sorgeloos, P.
Decapsulated &lt;i&gt;Artemia&lt;/i&gt; cysts were used to study the factors which induce the superior performance of live organisms as food for fish larvae. The biochemical composition, the in vitro protein digestibility, and the total proteolytic and trypsin activities in cysts and nauplii of &lt;i&gt;Artemia&lt;/i&gt; were determined at different developmental stages as a function of incubation time. Six different incubation times were studied: 1, 6, 11, 16, 21 and 25h of development, which cover cyst and early nauplii stages. The individual dry weight of &lt;i&gt;Artemia&lt;/i&gt; decreased through development. The individual protein and lipid content (µg ind&lt;sup&gt;-1&lt;/sup&gt; remained constant during development until the time of hatching after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=305

In vitro hatching of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; eggs: optimisation of environmental conditions
Provedor de dados: 27
Autores: De Caluwé, J.; Korkor, A.M.E.; Hisbi, D.; Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrobrachium rosenbergii.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2544

Studie van de afvalstromen afkomstig van de scheepvaart, binnenvaart en goederenbehandeling in de havens van Antwerpen, Gent, Oostende en Zeebrugge: synthese
Provedor de dados: 27
Autores: Maes, F.; Gonsaeles, G.; Buyse, A.
Tipo: Info:eu-repo/semantics/book
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5084

Variations in lipid classes and fatty acid content in tissues of wild &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; (de Man) females during maturation
Provedor de dados: 27
Autores: Cavalli, R.O.; Tamtin, M.; Lavens, P.; Sorgeloos, P.
This study describes the variations in total lipid, lipid classes and fatty acids in the midgut gland (MG), ovary, and muscle tissue of wild-caught &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; to elucidate the importance of these components during sexual maturation. Mature females were captured in the Mae Klong River, Thailand, from July to September 1998, and divided into five groups according to their ovarian development. Total lipid levels in the ovary increased with maturation, but no concomitant decrease in MG lipids was observed. Thus, the lipid requirements of the developing ovary are thought to be more dependent on the immediate ingestion of dietary lipid than on MG reserves. Higher proportions of neutral lipids (NL), mainly triacylglycerols (TG),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Fatty acids; Lipids; Muscles; Natural populations; Ovaries; Polyunsaturated fatty acids; Prawn culture; Sexual maturity; Macrobrachium rosenbergii; Thailand.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6923

International study on &lt;i&gt;Artemia&lt;/i&gt;: 14. Growth and survival of &lt;i&gt;Artemia&lt;/i&gt; larvae of different geographical origin in a standard culture test
Provedor de dados: 27
Autores: Vanhaecke, P.; Sorgeloos, P.
For characterization of strains of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; of different geographical origin, a standard culture test has been developed in order to compare statistically growth and survival of larvae of different strains. 25 geographical strains have been studied so far -including, for 3 strains, analyses of cysts harvested at different times. Important differences in rates of growth and survival were observed between strains but not among batches of the same strain. Best performances were noted for strains from Bahia Salinas (Puerto Rico), Buenos Aires (Argentina), Chaplin Lake (Canada), Great Salt Lake (Utah, USA), Galera Zamba and Manaure (Colombia).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Growth; Larvae; Survival; Artemia.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/261892.pdf

Meiofauna of a deep-sea transect off Corsica
Provedor de dados: 27
Autores: Soetaert, K.; Heip, C.H.R.; Vincx, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7017

Seasonal variation of phytoplankton populations and primary production in the Sluice dock at Ostend (Belgium)
Provedor de dados: 27
Autores: Mommaerts-Billiet, F.; Mommaerts, J.-P.; Daro, M.H.
The Sluice Dock at Ostend has been investigated for phytoplankton populations and primary production for the years 1971 and 1972. Nannoplankton is demonstrated to take a prominent part in pelagic primary production. The seasonal cycle shows a short spring outburst of &lt;i&gt;Eutreptiella marina&lt;/i&gt; da Cunha followed by a depressed production period (May). Summer is the most productive; several nannoplankton populations appear successively in this period. The depression in May is discussed in relation to zooplankton activity.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3499

Thermal resistance, developmental rate and heat shock proteins in &lt;i&gt;Artemia franciscana&lt;/i&gt;, from San Francisco Bay and southern Vietnam
Provedor de dados: 27
Autores: Clegg, J.S.; Jackson, S.A.; Van Hoa, N.; Sorgeloos, P.
Cysts (encysted gastrula embryos) of &lt;i&gt;Artemia franciscana&lt;/i&gt; collected from salterns in San Francisco Bay, California, USA (SF) were inoculated into much warmer growth ponds in the Mekong Delta region of Vietnam (V) in 1996. V adults arising directly from these cysts during 17 April to 15 May produced their own cysts, which were collected, processed and stored until shipped to the USA for study. Adults grown in the laboratory from SF cysts (those used for the inoculation) were less resistant to high temperature than adults cultured from V cysts. V cysts produced heat-resistant adults, even though cultured under the same laboratory conditions as SF animals, at much lower temperatures than they ever experienced in Vietnam. Differences in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adaptations Biological development Cysts Growth rate Temperature effects Temperature tolerance Zooplankton Artemia Artemia franciscana INE USA; California.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4597

Winter distribution of seabirds in the North Sea: an oceanological interpretation
Provedor de dados: 27
Autores: Joiris, C.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/276724.pdf

Possible applications of modern fish larviculture technology to ornamental fish production
Provedor de dados: 27
Autores: Dhert, P.; Lim, L.C.; Candreva, P.; Van Duffel, H.; Sorgeloos, P.
There has been rapid development in the marine foodfish larviculture technology in Europe since the early eighties, especially in the flat fish, turbot and halibut, and the bass and bream species. The most significant improvements in the eighties were the introduction of light control, artificial reproduction techniques, appropriate water treatment and the use of rotifers and &lt;i&gt;Artemia&lt;/i&gt; nauplii of specific sizes and in the late eighties and early nineties the quality enhancement of live food organisms using specific enrichment techniques. Present research is focused on the implementation of several microbial techniques to improve the hygiene of live prey and fish. Many of the modern larviculture techniques being used in marine foodfish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish culture; Ornamental fish.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2933

Growth and toxicity tests on the marine nanoplanktonic alga &lt;i&gt;Platymonas tetrathele&lt;/i&gt; G.S. West in the presence of crude oil and emulsifiers
Provedor de dados: 27
Autores: Mommaerts-Billiet, F.
Phytoplankton response to environmental pollution by oil and emulsifiers has been studied. The nanoplanktonic flagellate &lt;i&gt;Platymonas tetrathele&lt;/i&gt; has been assayed with increasing concentrations of crude oil, industrial non-ionic emulsifiers and mixtures of these products. Cultures poisoned with an emulsifier with an aromatic solvent exhibited a very long lag phase. Diminished growth rates were observed for all the products tested most of the time at concentrations above 50 ppm. The mixtures showed a toxicity close to that of the emulsifier component at its concentration in the mixture and lower than that of the crude oil alone. Fine structure modifications have been investigated and the possible ecological effects of such pollution have...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth; Marine pollution; Nannoplankton; Toxicity tests.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3478

Immunostimulation of turbot fry (&lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.) with FMI administered by &lt;i&gt;Artemia&lt;/i&gt; nauplii
Provedor de dados: 27
Autores: Skjermo, J.; Defoort, T.; Dehasque, M.; Espevik, T.; Olsen, Y.; Skjåk-Bræk, G.; Sorgeloos, P.; Vadstein, O.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia Scophthalmus maximus (Linneaus; 1758).
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2617

Relation entre des populations successives de phytoplancton et de bactéries hétérotrophes dans le Bassin de Chasse d'Ostende (Belgique), en 1971
Provedor de dados: 27
Autores: Podamo, J.
When the sluices of the "Bassin de Chasse" in Ostend were closed, on the 31th March 1971, we observed an important decrease of the number of heterotrophic marine bacteria in the water: from 5.10&lt;sup&gt;5&lt;/sup&gt; b/ml on 31th March to 10&lt;sup&gt;3&lt;/sup&gt; b/ml on 15th May. This can be interpreted as reflecting the consumption of organic material supporting the growth of the bacteria by the bacteria themselves. The new bacterial populations appearing then were closely related to the phytoplanktonic populations appearing just before them. This relation probably reflects the dependance of the bacteria to the new organic material of the dead phytoplankton cells.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria Ecological succession Heterotrophic organisms Phytoplankton ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3465

Caridean shrimps in the food of demersal fish off the Belgian coast: 2. Perciformes
Provedor de dados: 27
Autores: Redant, F.
The report provides information on the importance of Caridean shrimps in the food of juvenile &lt;i&gt;Trigla species&lt;/i&gt; (gurnard), &lt;i&gt;Agonus cataphractus&lt;/i&gt; (hook-nose) and &lt;i&gt;Liparis liparis&lt;/i&gt; (sea snail) in the Belgian coastal waters, and gives some biometric data related to stomach content and composition. The results show the importance of Caridean shrimps, especially &lt;i&gt;Crangon crangon&lt;/i&gt;, as a food source for perciform fish species in inshore waters. The records of the chameleon prawn, &lt;i&gt;Hippolyte varians&lt;/i&gt; in fish stomachs and in trawl and grab samples are compared, and the actual knowledge on the distribution and abundance of this shrimp species is discussed.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Food preferences Caridea [Shrimps] Perciformes ANE; Belgium; Belgian Coast.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3387

Description of &lt;i&gt;Periclimenes wirtzi&lt;/i&gt; sp. nov., a new pontoniine shrimp from Madeira and the Azores, with a checklist of Eastern Atlantic and Mediterranean Pontoniinae (Crustacea, Decapoda, Caridea)
Provedor de dados: 27
Autores: d'Udekem d'Acoz, C.
A new &lt;i&gt;Periclimens&lt;/i&gt; from Madeira and the Azores, &lt;i&gt;P. wirtzi&lt;/i&gt; sp. nov. is described. This pontoniine shrimp has an extremely long and unusually narrow rostrum with only a few teeth on the distal half of its dorsal border. It was found in large numbers on black corals of the genus &lt;i&gt;Anthipathes&lt;/i&gt; at 29-40m depth. A provisional checklist of Eastern Atlantic and Mediterranean Pontoniinae is given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists New species Taxonomy Caridea [Shrimps] Periclimenes wirtzi MED; Eastern Mediterranean.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303545.pdf

Turbellaria from Somalia: 2. Kalyptorhynchia (part 2)
Provedor de dados: 27
Autores: Schockaert, E.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6726

Advective excess Ba transport as shown from sediment and trap geochemical signatures
Provedor de dados: 27
Autores: Fagel, N.; André, L.; Dehairs, F.A.
We report the results of a geochemical study of sediment and trap material. Major and trace elements (Zr, Ba, rare earth elements, and Th) were analyzed on bulk sedimentary material collected along the NE Atlantic margin. Our aim is to test the widespread use of Ba-barite as a proxy for paleoproductivity in a continental margin area. This environment is of great interest because atmospheric-oceanic exchanges are important. In sediments, the geochemical signatures remain close to an upper crust reference, with flat shale-normalized rare earth elements patterns and constant elementary ratios. The calculated biogenic fraction of Ba or excess Ba (20-45%) remains lower than the excess Ba record in trap material (80-99%). The evolution of the geochemical...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10270

Contribution à la connaissance de &lt;i&gt;Nassarius semistriatus&lt;/i&gt; (Brocchi, 1814) (Mollusca: Gastropoda)
Provedor de dados: 27
Autores: Adam, W.; Glibert, M.
In this paper fossil species from the Neogene of Southern Europe or the Vienna Basin, and Recent ones from the Lusitanian and Westafrican regions, which have been incorrectly assigned to &lt;i&gt;Nassa semistriata&lt;/i&gt; Brocchi, 1814 (= &lt;i&gt;Nassa semistriatus&lt;/i&gt;) are described, figured and discussed. It appears that: 1- mostly commonly specimens designated as &lt;i&gt;Nassarius semistriatus&lt;/i&gt; belong to &lt;i&gt;N. elatus&lt;/i&gt; (Gould, 1845). This is a relatively common species, practically ignored by both zoologists and paleontologists. We have been able to trace it from the Upper Middle Miocene to Recent. 2- Some recent specimens designated as « &lt;i&gt;Nassa semistriata&lt;/i&gt; » belong, in fact, to &lt;i&gt;Nassarius...
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/303574.pdf

Bedforms on the Middelkerke Bank, southern North Sea
Provedor de dados: 27
Autores: Lanckneus, J.; De Moor, G.
Large dunes cover the flanks and summit of the Middelkerke Bank. They have constant orientation heights ranging from 0.5 to 5 m, wavelengths of 75 to 150 m and in most cases asymmetrical profiles. No relationships could be established between the heights of the large dunes and the grain sizes of the sediment or the water depth in which they are developed. The slopes of both lee and stoss flanks are very low. Almost every large dune on the bank can assume both ebb and flood orientations through time. Two cases are presented in which particular swell and wind conditions induced common orientations to nearly all the large dunes. No significant migration was observed for six large dunes on the northern end of the bank over a time span of 13 moths during which...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2573

Ecological modelling of the North Sea
Provedor de dados: 27
Autores: Fransz, H.G.; Mommaerts, J.-P.; Radach, G.
North Sea ecosystem models published in accessible literature are partitioned into groups with respect to their emphasis on significance and detail of different trophic levels of the ecosystem. These subsets are treated separately in the three main chapters, which deal with relationships with physical dynamics, lower trophic level interactions and higher trophic level interactions. They are preceded by chapters that introduce the scope of the models, the history of modelling approaches, main purposes and specific aims, general aspects of internal structure, and modelling techniques applied. The main chapters compare the process descriptions characteristic of the subsets of models, and discuss aims and results with emphasis on significance and contribution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Ecosystem management Environmental effects Marine environment Models Nutrient cycles Plankton Predation Primary production Trophodynamic cycle ANE; North Sea.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262355.pdf

The identification of &lt;i&gt;Pomatoschistus minutus&lt;/i&gt; (Pallas) and &lt;i&gt;Pomatoschistus lozanoi&lt;/i&gt; (de Buen) (Pisces, Gobiidae)
Provedor de dados: 27
Autores: Hamerlynck, O.
Sand gobies are extremely abundant in coastal waters and estuaries. &lt;i&gt;Pomatoschistus lozanoi&lt;/i&gt; tends to be overlooked due to identification problems. This paper summarizes the characteristics to distinguish &lt;i&gt;P. lozanoi&lt;/i&gt; from &lt;i&gt;P. minutus&lt;/i&gt; and presents a new distinctive feature that allows identification of juveniles from 15-20 mm standard length onward. The known geographic distribution of &lt;i&gt;P. lozanoi&lt;/i&gt; is extended northward to 53°30'N and southward to 40°N on the coast of Europe. In northern Europe &lt;i&gt;P. lozanoi&lt;/i&gt; seems better adapted to the estuarine habitat than previously thought.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Distribution records Pomatoschistus lozanoi (de Buen; 1923) [Lozano's goby] Pomatoschistus minutus (Pallas; 1770) [Sand goby].
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3081

&lt;i&gt;Intercletodes interita&lt;/i&gt; n. gen., n. sp. and &lt;i&gt;Orthopsyllus coralliophilus&lt;/i&gt; n. sp., two new copepods from the northern coast of Papua New Guinea (Copepoda, Harpacticoida)
Provedor de dados: 27
Autores: Fiers, F.
In the present paper two new harpacticoid copepods, including a new genus, are described. Both species: &lt;i&gt;Intercletodes interita&lt;/i&gt; n. gen., n. sp. and &lt;i&gt;Orthopsyllus coralliophilus&lt;/i&gt; n. sp. were found in the cavity formed and inhabited by a gastropod, &lt;i&gt;Leptoconchus&lt;/i&gt; sp., living in a massive coral of the genus &lt;i&gt;Favia&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/303571.pdf

Endoparasitic helminths of the whitespotted rabbitfish (&lt;i&gt;Siganus sutor&lt;/i&gt; (Valenciennes, 1835)) of the Kenyan coast: distribution within the host population and microhabitat use
Provedor de dados: 27
Autores: Geets, A.; Ollevier, F.P.
The parasitic fauna of the alimentary tract of adult whitespotted rabbitfish, &lt;i&gt;Siganus sutor&lt;/i&gt;, sampled in December 1990 at the Kenyan coast, was investigated. Five endoparasites were found: the digenean trematodes &lt;i&gt;Opisthogonoporoides hanumanthai, Gyliauchen papillatus&lt;/i&gt; and &lt;i&gt;Hexangium sigani&lt;/i&gt;, the acanthocephalan &lt;i&gt;Sclerocollum rubrimaris&lt;/i&gt; and the nematode &lt;i&gt;Procammalanus elatensis&lt;/i&gt;. No uninfected fish, nor single species infections occurred. Parasite population data showed very high prevalences for all endoparasites, ranging from 68.18% to 100%. &lt;i&gt;G. papillatus&lt;/i&gt; occurred with the highest mean intensity, 201.68 ± 12.54 parasites per infected fish. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Siganus sutor [shoemaker spinefoot] ISW; Kenyan Coast.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2966

Belgium and the Law of the Sea
Provedor de dados: 27
Autores: Franckx, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7953

Cartographie du Middelkerke Bank: dynamique sédimentaire, structure géologique, facies sédimentaires
Provedor de dados: 27
Autores: Lanckneus, J.; De Moor, G.; Berné, S.; Chamley, H.; De Batist, M.; Henriet, J.-P.; Terwindt, J.; Trentesaux, A.
The paper analyses the first results obtained in the framework of the RESECUSED project (MAST) whose objectives are the detailed analysis of the behaviour of sediments and bedforms of and on the Middelkerke Bank (Belgian Continental Shelf) and the study of the interaction between water movement, sediment transport and bedform mobility. The results include a preliminary analysis of the residual bottom load transport paths deduced from side scan sonar registrations, a map of the sandwaves on the bank, the first grain-size results of the superficial sediment and a study on the internal structure of the bank.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bed forms; Continental shelves; Grain size; Granulometry; Sand waves; Sediment dynamics; Sediment transport; Shelf facies; Side scan sonar.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262327.pdf

Kalyptorhynchia (Plathelminthes Rhabdocoela) from the Kenyan Coast, with descriptions of four new species
Provedor de dados: 27
Autores: Jouk, P.E.H.; De Vocht, A.J.-P.
Sandy sediments and algae from the littoral and sublittoral zone of the coast near Mombasa were sampled. Eighteen species of Kalyptorhynchia were collected, of which four new species of Schizorhynchia are described here, two &lt;i&gt;Cheliplana&lt;/i&gt; species, one &lt;i&gt;Baltoplana&lt;/i&gt; sp. and one &lt;i&gt;Carcharodorhynchus&lt;/i&gt; sp. &lt;i&gt;Cheliplana asica terminalis&lt;/i&gt; Brunet 1968 described from the Mediterranean and also recorded from Somalia was found as well. Five out of 13 species of Eukalyptorhynchia were already recorded from Somalia. &lt;i&gt;Polycystis ali&lt;/i&gt; Schockaert 1982, &lt;i&gt;P. subcontorta&lt;/i&gt; Schockaert 1982 and &lt;i&gt;Cinturorhynchus karlingi&lt;/i&gt; Schockaert 1982 were newly described from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists Littoral zone New records Sublittoral zone Carcharodorhynchus Cheliplana Gyratrix hermaphroditus Ehrenberg; 1831 Kalyptorhynchia Schizorhynchia ISW; Kenyan Coast.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3034

EDXRS study of aerosol composition variations in air masses crossing the North Sea
Provedor de dados: 27
Autores: Injuk, J.; Van Malderen, H.; Van Grieken, R.; Swietlicki, E.; Knox, J.M.; Schofield, R.
X-ray emission techniques for bulk and individual particle analysis (EDXRF, EPXMA, micro-PIXE) were combined and applied in atmospheric research on the North Sea area as part of a field-study on air-sea exchange processes of particulate matter. The atmospheric loading for a number of elements was determined by EDXRF, yielding bulk concentrations for Mg, Al, Si, S, Cl, K, Ca, Cr, Mn, FE, Ni,Cu, Zn, BR and Sr. From these EDXRF data, deposition rates were derived and, based on a classical multivariate statistical approach, different aerosol sources were identified. Complementary to this work, EPXMA combined with automated image analysis was applied to individual size-segregated aerosol particles to determine their inorganic composition, physical size and...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2711

Particulate barium stocks and oxygen consumption in the Southern Ocean mesopelagic water column during spring and early summer
Provedor de dados: 27
Autores: Dehairs, F.A.; Shopova, D.; Ober, S.; Veth, C.; Goeyens, L.
Particulate barium was analysed in the upper 600 m of the Southern Ocean water column during repeated transects along the 6 degree W meridian in October-November 1992. The transects extended between the northern edge of the Weddell Gyre (57 degree 30'S) in the south to 47 degree S within the Polar Front Zone (PFZ) in the north. From earlier studies, it is known that the largest fraction of Ba in oceanic suspended matter occurs as barite micro-crystals. In the PFZ, an increase in the particulate Ba content in surface waters and at mesopelagic depths can be significant over the investigation period (1 month) and follows the increase of primary production during bloom development. Using an inverse one-dimensional advection-diffusion-consumption model,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Barium Biogeochemical cycle Carbon cycle Mixed layer Oxygen consumption Primary production PSW; Antarctic Ocean.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10209

Données sur l'écologie de l'estuaire du Tamar (Plymouth)
Provedor de dados: 27
Autores: Mommaerts, J.-P.
The estuary of the Tamar has been surveyed from March to September 1968. The distribution and the variation of temperature, salinity and major nutrients (phosphate, nitrate and silicate) has been studied and the connection with some water circulation features discussed. The distribution of the various groups of phytoplankton in the estuary has been investigated and a comparison with open sea data carried out.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology ANE; British Isles; England; Tamar Estuary.
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/295150.pdf

Modelling sand resuspension by waves over a rippled bed
Provedor de dados: 27
Autores: Trouw, K.; Williams, J.J.; Rose, C.P.
With a two-dimensional &lt;i&gt;Kappa-Epsilon&lt;/i&gt;-model and equations to describe sediment entrainment, diffusion, convection and settling, wave-induced flow velocities and sediment concentration fields over rippled beds have been calculated. Results from the simulations are compared with time-averaged vertical suspended sediment concentration profiles, C-profiles, measured in a large wave flume using the autonomous multi-sensor instrument STABLE. The simulations make it possible to examine in detail the mechanisms of sediment entrainment, vortex formation and advection. The resulting animations of model output allow a quasi-3-D visualization of sediment resuspension processes and aid quantification of the resulting vertical suspended sediment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bed forms; Hydraulic models; Ocean floor; Resuspension; Sand; Sand ripples; Suspended particulate matter; Vertical profiles.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7390

Trace metal fractionation effects between sea water and aerosols from bubble bursting
Provedor de dados: 27
Autores: Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W.
Laboratory experiments were performed using radioactive tracers of &lt;sup&gt;65&lt;/sup&gt;Zn, &lt;sup&gt;75&lt;/sup&gt;Se, &lt;sup&gt;22&lt;/sup&gt;Na, &lt;sup&gt;137&lt;/sup&gt;Cs and &lt;sup&gt;152&lt;/sup&gt;Eu added to natural sea water to determine differences in elemental composition between sea water and aerosol droplets as a function of particle size. The experiments were conducted using a flow of air as a stream of bubbles rising and bursting at the surface of a vessel containing sea water with added radioactive tracers at pH 8. The resultant aerosol cloud was drawn through a cascade impactor which separated particle size fractions for analysis. In a typical experiment 30 ml of sea water, collected in polyethylene no more than a few hours before...
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/262479.pdf

Feeding of &lt;i&gt;Acartia tonsa&lt;/i&gt; Dana (Copepoda, Calanoida): predation on nauplii of &lt;i&gt;Canuella perplexa&lt;/i&gt; T. &amp; A. Scott (Copepoda, Harpacticoida) in the Sluice-dock at Ostend
Provedor de dados: 27
Autores: Tackx, M.; Polk, P.
Feeding experiments in which the zooplankton fraction of the Sluice-dock smaller than 200 µm is offered to &lt;i&gt;Acartia tonsa&lt;/i&gt;, the dominant calanoid of this biotope, show that it feeds on the nauplii of &lt;i&gt;Canuella perplexa&lt;/i&gt;, the dominant benthic harpacticoid. The ecological implications of this carnivorous feeding, occurring in the presence of natural phytoplankton concentrations, are briefly discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nauplii Predation Acartia tonsa Canuella perplexa T. and A. Scott; 1893 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3388

The anatomy and ultrastructure of the proboscis in &lt;i&gt;Zonorhynchus&lt;/i&gt;-species and implications for phylogenetic relationships within the Eukalyptorhynchia Meixner, 1928 (Platyhelminthes, Rhabdocoela)
Provedor de dados: 27
Autores: De Vocht, A.J.-P.; Schockaert, E.R.
The ultrastructural morphology of the proboscis in species of the genus &lt;i&gt;Zonorhynchus&lt;/i&gt; Karling, 1952 is investigated. The proboscis epithelia are organized in four belts. The apical cone epithelium has intra-epithelial nuclei, and the distal belt of the sheath epithelium is formed by numerous cells lacking a distinct pattern. Multiciliary receptors are lacking. The diversity in ultrastructural data on the proboscis is used to elucidate the phylogenetic relationships within the Cicerinidae and Eukalyptorhynchia. A bipartite cone epithelium as found in &lt;i&gt;Zonorhynchus&lt;/i&gt;-species is a common feature for all eukalyptorhynch species investigated. A syncytial basal cone epithelium is a synapomorphic character for all species except...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phylogeny; Proboscis; Ultrastructure; Eukalyptorhynchia; Platyhelminthes; Rhabdocoela; Zonorhynchus.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1116

Dietary phosphatidylcholine requirements in larval and postlarval &lt;i&gt;Penaeus japonicus&lt;/i&gt; Bate
Provedor de dados: 27
Autores: Camara, M.R.; Coutteau, P.; Sorgeloos, P.
Three nutritional experiments were carried out to investigate the effect of dietary phosphatidylcholine (PC) on the growth (length, weight, and metamorphosis) and survival (rearing and stress) of larval and postlarval &lt;i&gt;Penaeus japonicus&lt;/i&gt; Bate. Purified soybean phosphatidylcholine (SPC, 95% purity), hen-egg PC (EPC, 94% purity), and de-oiled soybean lecithin (DSL, PC 23% purity) were used as sources of dietary PC. The results indicated that optimal metamorphosis in larval &lt;i&gt;P. japonicus&lt;/i&gt; was obtained at levels of 15-30 g kg&lt;sup&gt;-1&lt;/sup&gt; of dietary SPC. Feeding trials with postlarval &lt;i&gt;P. japonicus&lt;/i&gt; showed that low levels of dietary SPC (15 g kg&lt;sup&gt;-1&lt;/sup&gt;) were more beneficial than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus japonicus [Kuruma shrimp].
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2922

La flore et la faune du Bassin de Chasse d'Ostende (1938-1962): I. Topographie et nature du fond; II. Etude écologique et planctonique
Provedor de dados: 27
Autores: Leloup, E.; Van Meel, L.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Ecology Plankton Topography ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1965
URL: http://www.vliz.be/imisdocs/publications/314398.pdf

Observations on the feeding ecology of estuarine nematodes
Provedor de dados: 27
Autores: Moens, T.; Vincx, M.
Observations on living estuarine nematodes show that previous feeding type classifications do not accurately represent the trophic structure of an intertidal mudflat in the Westerschelde Estuary (Netherlands). A new scheme with six major nematode feeding guilds is proposed: (1) microvores; (2) ciliate feeders; and (3) deposit feeders sensu stricto are all nematodes without a distinct buccal armature. In the first two groups bacteria and protozoa, respectively are the major particulate food sources, while other items are included in the diet of the third. The three other categories are recognized among the nematodes with a buccal armature: (4) epigrowth feeders; (5) facultative predators; and (6) predators. Diatoms and other microalgae are an important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biology; Biomass; Carbon; Habits; Habits; Meiobenthos; Water.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7298

Testicular and spermatozoal characteristics of channel catfish, &lt;i&gt;Ictalurus punctatus&lt;/i&gt;, outside the spawning season
Provedor de dados: 27
Autores: Jaspers, E.; Avault, J.W. Jr.; Roussel, J.D.
Several testicular and spermatological parameters of 48 male channel catfish, &lt;i&gt;Ictalurus punctatus&lt;/i&gt; (Rafinesque) were studied during 6 months (November through April) outside the spawning season. Two stocks (a domestic and a wild one) and within each stock 2- and 3-year-old fish were compared. Within age-groups, the domestic fish were considerably larger than the wild ones. In each stock, the 3-year-olds outgrew the 2-year-olds. The testes consisted of a white spermatogenic and pink glandular part, averaging 1.14 and 0.56 g respectively. A significant increase in both parts was noticed in March, continuing during April. One 3-year-old male in each stock was azoospermic, even though these fish had well developed testes and exhibited...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gonads; Spawning seasons; Ictalurus punctatus.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3585

A reassessment of &lt;i&gt;Paralimnocythere&lt;/i&gt; Carbonnel, 1965 (Crustacea, Ostracoda, Limnocytherinae), with a description of a new genus and two new species
Provedor de dados: 27
Autores: Martens, K.
The Recent and Fossil species of &lt;i&gt;Paralimnocythere&lt;/i&gt; are reassessed and the genus is characterized using both soft part and valve morphology. Seventeen species, of which eleven have living representatives, are here retained. &lt;i&gt;Relictocytherina&lt;/i&gt; Negadaev-Nikonov, 1968 is confirmed as a synonym of &lt;i&gt;Paralimnocythere; R. orginalis&lt;/i&gt; (Negadaev-Nikonov, 1965), the type species is furthermore synonymous with &lt;i&gt;P. relicta&lt;/i&gt; (Lilljeborg, 1863). &lt;i&gt;Paralimnocythere psammmophila&lt;/i&gt; (Flössner, 1965) and &lt;i&gt;P. compressa&lt;/i&gt; (Brady &amp; Norman, 1889) are both reinstated as valid species, quite different from &lt;i&gt;P. relicta&lt;/i&gt;. All Recent Balkan species are retained as...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/303563.pdf

Summer at-sea distribution of seabirds and marine mammals in polar ecosystems: a comparison between the European Arctic seas and the Weddell Sea, Antarctica
Provedor de dados: 27
Autores: Joiris, C.R.
The summer at-sea distribution of seabirds and marine mammals was quantitatively established both in Antarctica (Weddell Sea) and in the European Arctic: Greenland, Norwegian and Barents seas. Data can directly be compared, since the same transect counts were applied by the same team from the same icebreaking ship in both regions. The main conclusion is that densities of seabirds and marine mammals are similar in open water and at the ice edge from both polar regions, while the presence of Adélie penguins, minke whales and crabeater seals in densities more than one order of magnitude higher in Antarctic pack-ice must reflect a major ecological difference between both polar systems. The ecological implications of these observations are discussed, especially...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aves [Birds] Cetacea [whales; Dolphins and porpoises] Pinnipedia.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6822

Eocene siliciclastic continental shelf sedimentation in the Southern Bight North Sea, Belgium
Provedor de dados: 27
Autores: Jacobs, P.; Sevens, E.
Eocene sedimentation in the Southern Bight of the intracratonic North Sea Basin is determined by its ramp margin setting. Lithofacies analysis of siliciclastic shallow marine sediments enables reconstruction of sedimentation model in relation to relative sea level changes. Two major sedimentary cycles composed of sequences of metric to decametric thickness can be discerned. The lower transgressive/regressive cycle evidences 3 sedimentary environments. Lowermost Eocene sediment units are mainly clayey, display an overall fining upward trend an are deposited on a mud shelf. A delta prograding out on the continental shelf deposits middle to upper Lower Eocene units, gradually becoming more sandy. Middle Eocene sediments are mainly sandy, contain calcarenite...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2713

La croissance de la crevette grise (&lt;i&gt;Crangon crangon&lt;/i&gt; L.) au large de la côte belge
Provedor de dados: 27
Autores: Schockaert, E.
The carapace length of the shrimp is directly proportional to the total length. At each moulting, a certain number of segments is added to the exopodite of the antennula. The frequency of moulting is a function of the temperature. If the mean monthly temperatures off the Belgian coast are known, this will enable us to draw a growth curve of &lt;i&gt;Crangon crangon&lt;/i&gt;.Connecting the modes in the successive population curves gives a growth curve with only relative value, but it nevertheless confirms the one obtained by the preceding method.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth curves Growth rate Temperature effects Crangon crangon (Linnaeus; 1758) [Brown shrimp] ANE; Belgium; Belgian Coast.
Ano: 1968
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6702

Integration of continuous seismic profiling in geotechnical investigations off the Belgian coast
Provedor de dados: 27
Autores: Henriet, J.-P.; Bastin, A.; De Rouck, J.
Continuous seismic profiling using boomer, sparker or pinger sources has gained widespread use in marine site investigations. At a reconnaissance stage, a grid of continuous seismic traverses with adequate orientation and mesh size is able to yield a coherent picture of the structural conditions of subsurface, allowing the definition of areas of main prospective interest. In the early stages of detailed site investigations, seismic profiling forms an efficient tool for the planning of high-cost offshore drilling and penetration testing programs.  Keys to success in seismic data acquisition are a matter of careful balancing and matching of source/receiver parameters with the marine and geological environment and with the geotechnical penetration/resolution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seismic profiles ANE; Belgium; Belgian Coast.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3578

Inventarisatie plankton: fauna en flora
Provedor de dados: 27
Autores: Polk, Ph.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288152.pdf

Ornithologische notities uit Joegoslavië
Provedor de dados: 27
Autores: Heip, C.H.R.; Michiels, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6960

International study on &lt;i&gt;Artemia&lt;/i&gt; : 59. &lt;i&gt;Artemia tibetiana&lt;/i&gt;: preliminary characterization of a new &lt;i&gt;Artemia&lt;/i&gt; species found in Tibet (People's Republic of China)
Provedor de dados: 27
Autores: Abatzopoulos, T.J.; Zhang, B.; Sorgeloos, P.
In this study, we report on the existence of a new bisexual &lt;i&gt;Artemia&lt;/i&gt; species, found in the high plateaus of Tibet (P.R. China). Different disciplines have been used to characterize this new population: biometrics of cysts and nauplii, morphometry of adults, cytogenetics, allozyme and DNA analyses and cross-breeding/fertility tests with known &lt;i&gt;Artemia&lt;/i&gt; species. The results obtained justify that &lt;i&gt;Artemia&lt;/i&gt; from Tibet is a new species with the proposed name &lt;i&gt;Artemia tibetiana&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Biochemistry; New species; Salt lakes; Shrimp culture; Taxonomy; Artemia tibetiana; Tibetan Plate.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=298

Biomass transport to and from an upper estuarine area by migration of juvenile Atlantic herring &lt;i&gt;Clupea harengus&lt;/i&gt;
Provedor de dados: 27
Autores: Maes, J.; Ollevier, F.
A model describing fish abundance resulting from fish migration and mortality in an upper estuary is presented. This model can be used to estimate biomass transports by fish migrations between estuary and sea and to assess production assimilated in the estuary. It was applied to herring &lt;i&gt;Clupea harengus&lt;/i&gt; L., a marine species with 0+ juveniles that migrate during winter to temperate European estuaries. It was shown that different mortality regimes greatly affected the number of fish that eventually emigrated and, hence, the biomass that was exported during the seaward migration. The difference between imported and exported biomass was assessed under different growth conditions and varied from positive to negative as mortality rates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance Biomass Juveniles Mathematical models Migrations Mortality Clupea harengus Belgium; Zeeschelde.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2762

Effects of feeding (omega-3) HUFA-enriched &lt;i&gt;Artemia&lt;/i&gt; during a progressively increasing period on the larviculture of freshwater prawns
Provedor de dados: 27
Autores: Romdhane, M.S.; Devresse, B.; Léger, Ph.; Sorgeloos, P.
Larvae of the freshwater prawn (&lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;) were reared to post-larvae in a closed recirculation system. Six treatments were designed where freshly-hatched &lt;i&gt;Artemia&lt;/i&gt; nauplii were first given to the larvae for 3, 7, 11, 15, 17 and 25 days according to the treatment. After that (omega-3) HUFA-enriched &lt;i&gt;Artemia&lt;/i&gt; were given until the 28th day at which time the test was terminated and evaluated. The requirement for (omega-3) Highly Unsaturated Fatty Acids (HUFA) for the larval stages of &lt;i&gt;M. rosenbergii&lt;/i&gt; was confirmed by this experiment. Moreover, the longer the period of feeding on (omega-3) HUFA-enriched &lt;i&gt;Artemia&lt;/i&gt; nauplii , the better the results in terms of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2600

Les nématodes libres marins du Bassin de Chasse d'Ostende
Provedor de dados: 27
Autores: Schuurmans Stekhoven, J.H.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematoda [Nematodes] ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1942
URL: http://www.vliz.be/imisdocs/publications/291547.pdf

Variability of the microbial environment of rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; and &lt;i&gt;Artemia&lt;/i&gt; production systems
Provedor de dados: 27
Autores: Verdonck, L.; Swings, J.; Kersters, K.; Dehasque, M.; Sorgeloos, P.; Léger, P.
Samplings were organized in three marine fish hatcheries. Samples were taken at different steps during the production of algae, rotifers and &lt;i&gt;Artemia&lt;/i&gt; . There were 233 dominant colony types isolated for further characterization. The isolates were compared to each other and to reference strains of &lt;i&gt;Photobacterium, Vibrio&lt;/i&gt; and &lt;i&gt;Alteromonas&lt;/i&gt;, using cellular fatty acid fingerprints. Fatty acid profiles of the isolates were grouped using principal component analysis. The isolates fell into at least ten major groups, of which two correspond to the genera &lt;i&gt;Vibrio&lt;/i&gt; and to &lt;i&gt;Alteromonas&lt;/i&gt;, respectively. Some groups seem to be restricted to a particular type of live food or isolation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Brachionus plicatilis.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2689

Heavy metals, organochlorines and polycyclic aromatic hydrocarbons in sperm whales stranded in the southern North Sea during the 1994/1995 winter
Provedor de dados: 27
Autores: Holsbeek, L.; Joiris, C.R.; Debacker, V.; Ali, B.I.; Roose, P.; Nellissen, J.P.; Gobert, S.; Bouquegneau, J.-M.; Bossicart, M.
Seven male sperm whales stranded on the southern North Sea coast during the 1994/95 winter were analysed for stable pollutant concentrations in muscle, liver, kidney and blubber: heavy metals (total and organic Hg, Se, Zn, Pb, Ni, Cd, Fe, Cr, Cu and Ti), organochlorines (PCBs and pesticides) and polycyclic aromatic hydrocarbons (PAHs), High concentrations of Cd (up to 300 mu g/g dw in kidney), Hg (up to 130 mu g/g dw in liver) and PCBs (up to 5 mu g/g dw in blubber) were detected, but not considered as the direct cause of mortality, while their possible indirect influence on the health status and/or behaviour of the North Atlantic sperm whale population is discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6837

Winter distribution of phytoplankton and zooplankton around some sandbanks of the Belgian coastal zone
Provedor de dados: 27
Autores: M'harzi, A.; Tackx, M.L.; Daro, M.H.; Kesaulia, I.; Caturao, R.; Podoor, N.
The distribution of phytoplankton and zooplankton around three sandbanks (Gootebank, Westhinder and Buitenratel sandbank) off the Belgian Coast was investigated in February 1994. The abundance of phytoplankton taxa was significantly different between the sandbanks. Community analysis using TWINSPAN resulted in a clear separation of clusters corresponding to the different sandbanks. The zooplankton community analysis, on the contrary, showed a rather indistinctive division of the sandbank stations. This was due to the omnipresence of three dominant copepod species (&lt;i&gt;Temora longicornis, Pseudocalanus elongatus&lt;/i&gt; and &lt;i&gt;Centropages hamatus&lt;/i&gt;). When these species were excluded from the analysis, a clearer distinction between the...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=313

A redescription of &lt;i&gt;Cumoniscus&lt;/i&gt; Bonnier, 1903 (Crustacea: Tantulocarida) from a cumacean host in the Bay of Biscay
Provedor de dados: 27
Autores: Huys, R.; Boxshall, G.; Casnova, J.-P.
Cumoniscus kruppi Bonnier, the only tantulocarid known from a cumacean host, is redescribed from a tantulus larva collected from the Bay of Biscay. The host is a male leuconid cumacean. This genus is placed in the family Deoterthridae, and can be distinguished from other genera by the pore pattern on the cephalic shield, the reduced setae on the sixth legs and the presence of tiny curved spinules on the endopod of thoracopods 2 to 5.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7258

On the discovery of the male of &lt;i&gt;Mormonilla&lt;/i&gt; Giesbrecht, 1891 (Copepoda: Mormonilloida)
Provedor de dados: 27
Autores: Huys, R.; Boxshall, G.A.; Böttger-Schnack, R.
Males of the two known species of Mormonilla Giesbrecht are described in detail for the first time. They have reduced or vestigial mouthparts and are probably non-feeding. Males have a single testis and produce a single spermatophore. Male antennules are geniculate. A system of probable segmental homologies for the antennulary segments is proposed and the supporting evidence for this system discussed. Females carrying egg sacs are reported and figured for the first time. Mormonilla is unusual amongst copepods in producing paired egg sacs from a common medial genital aperture.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/266870.pdf

De Bijzondere Dienst der Kust: 100 jaar samenleven met de zee 1898-1998: een hernieuwde kennismaking met de afdeling Waterwegen Kust
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/261503.pdf

A simple volumeter for small invertebrates
Provedor de dados: 27
Autores: Persoone, G.
The displacement technique for measuring the volume of plankton catches is well established, and a number of papers have been published describing suitable apparatus for this purpose including those by Frolander (1957), and Yentsch &amp; Hebard (1957). Gnanamuthu (1952) reviews several papers dealing with equipment for measuring the volume of small aquatic animals and discusses his own volumeter. The apparatus here described employs a water column and is, therefore, more convenient to handle than previous designs which used a mercury column. It is inexpensive and simple to construct, and will measure to 0.01 or even 0.005 ccm. We have found it most useful in quickly measuring the volume of polychaetes or oligochaetes, small bivalves, small crustaceans, etc.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Instruments; Marine invertebrates.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3430

Early fracturing of Palaeogene clays, southernmost North Sea: relevance to mechanisms of primary hydrocarbon migration
Provedor de dados: 27
Autores: Henriet, J.-P.; De Batist, M.; Verschuren, J.
Argillaceous petroleum source-rocks often show evidence of fracturing, which is considered to be an important factor for the primary migration of hydrocarbons. Several authors consider overpressuring of the enclosed pore fluids at great burial depths as a major factor for the generation of microfractures, through the mechanism of hydrofracturing. Various scales of fracture networks have been observed in Palaeogene clays which have never reached burial depths, greater than a few hundreds of meters. High-resolution seismic reflection investigations carried out in the southern North Sea have revealed large-scale fracturing patterns, confined to the London/Ieper clays. Equivalent deformation and microfracturing have been observed at outcrops on land.Field...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2798

The ARC-test: a standardized short-term routine toxicity test with &lt;i&gt;Artemia&lt;/i&gt; nauplii: methodology and evaluation
Provedor de dados: 27
Autores: Vanhaecke, P.; Persoone, G.
Considering the need for reliable standardized routine toxicity tests for the marine environment, a short-term bioassay with &lt;i&gt;Artemia&lt;/i&gt; nauplii has been developed for routine testing. The major reason for the selection of brine shrimp as test species is the continuous availability of &lt;i&gt;Artemia&lt;/i&gt; under the form of dry cysts from which the larvae are hatched very easily. This unique advantage solves one of the major problems of aquatic ecotoxicological tests, namely stock recruitment and/or culturing; the &lt;i&gt;Artemia&lt;/i&gt; test can be performed anywhere and at any time from dry biological material available "on the shelf".An extensive study has been performed on various brine shrimp tests published in scientific...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Methodology; Nauplii; Toxicity tests; Artemia.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3275

Small pelagics in upwelling systems: patterns of interaction and structural changes in "wasp-waist" ecosystems
Provedor de dados: 27
Autores: Cury, P.; Bakun, A.; Crawford, R.J.M.; Jarre, A.; Quiñones, R.A.; Shannon, L.J.; Verheye, H.M.
In upwelling ecosystems, there is often a crucial intermediate trophic level, occupied by small, plankton-feeding pelagic fish dominated by one or a few schooling species. Their massive populations may vary radically in size under intensive exploitation. We have used decadal-scale time series to explore patterns of interactions between these fish, their prey, and their predators so as to quantify functional roles of small pelagic fish in those ecosystems. Top-down control of zooplankton is detected off South Africa, Ghana, Japan, and in the Black Sea. Conversely, bottom-up control of predators, such as predatory fish and marine birds, is observed in the Benguela, Guinea, and Humboldt currents. Thus small pelagic fish exert a major control on the trophic...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5061

Review of the biogeography of the genus &lt;i&gt;Artemia&lt;/i&gt; (Crustacea, Anostraca)
Provedor de dados: 27
Autores: Triantaphyllidis, G.V.; Abatzopoulos, T.J.; Sorgeloos, P.
In this study we report on the known &lt;i&gt;Artemia&lt;/i&gt; habitats worldwide. Recent literature information is incorporated about the taxonomic status of the various populations studied. The genus is composed of di-, tri-, tetra- and pentaploid parthenogenetic populations and of the following bisexual species, &lt;i&gt;A. franciscana franciscana&lt;/i&gt;, &lt;i&gt;A. franciscana monica&lt;/i&gt;, &lt;i&gt;A. franciscana&lt;/i&gt; sp., &lt;i&gt;A. persimilis&lt;/i&gt;, &lt;i&gt;A. salina, A. urmiana, A. sinica&lt;/i&gt; and &lt;i&gt;A.&lt;/i&gt; sp. from Kazakhstan. The problems of characterizing new brine shrimp populations are discussed. In view of the great importance of &lt;i&gt;Artemia&lt;/i&gt; as part of the live food chain for the culture of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=320

Experimental alteration of the &lt;i&gt;Nautilus&lt;/i&gt; shell by factors involved in diagenesis and in metamorphism. III. Thermal and hydrothermal changes in the organic and mineral components of the mural mother-of-pearl
Provedor de dados: 27
Autores: Grégoire, Ch.
1. The pyrolytic changes in the organic and mineral components of mother-of-pearl of the modern &lt;i&gt;Nautilus&lt;/i&gt; have been studied with the transmission and scanning electron microscopes in 86 groups of samples. 2. Pyrolysis was performed in the range of 100 °C to 900 °C for periods extending from a few minutes to 53 days, in four sets of experiments : 1. samples boiled in sea water; 2. samples heated dry in open vessels; 3. samples heated dry in tubes sealed under vacuum; 4. samples heated with sea or distilled water in tubes sealed under vacuum. 3. The present observations confirm and extend those of previous studies on the thermal changes in the ultrastructure of the interlamellar conchiolin matrices: a. Conchiolin is thermoresistant. It does...
Tipo: Info:eu-repo/semantics/article
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/295162.pdf

Evaluation of vitamin C-enriched &lt;i&gt;Artemia&lt;/i&gt; nauplii for larvae of the giant freshwater prawn
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Radull, J.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
The effects of high levels of ascorbic acid (AA) delivered through enriched live food has been verified through the successful culture of larval giant freshwater prawn, &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; Two successive feeding trials were set up using a control (550 µg AA g&lt;sup&gt;-1&lt;/sup&gt; DW) and two different AA-enrichment levels in &lt;i&gt;Artemia&lt;/i&gt; (1300 and 2750 µg AA g&lt;sup&gt;-1&lt;/sup&gt; DW). Under standard culture conditions, no differences in growth nor survival could be observed demonstrating that the nutritional requirements are below 550 µg AA g&lt;sup&gt;-1&lt;/sup&gt; DW, which is the normal level occurring in freshly-hatched &lt;i&gt;Artemia&lt;/i&gt; . However, a significantly positive effect could be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2582

&lt;i&gt;Tantulacus hoegi&lt;/i&gt; gen. et sp. nov. (Tantulocarida: Deoterthridae) from the meiobenthos of the Faroe Bank, North Atlantic
Provedor de dados: 27
Autores: Huys, R.; Andersen, P.; Kristensen, R.M.
Three free-living tantuli of a new genus and species, Tantulacus hoegi, were discovered among the meiofauna from deep carbonate shell-sand on the Faroe Bank. The host-is unknown. Tantulacus is referred to the Deoterthridae on account of its larval characters. It occupies an intermediate positon between Deoterthron - Aphotocentor and the other deoterthrid genera. It can be readily distinguished from other tantulocaridans by -the- pr.esence of a distinct rigid spine on the endopod of the second to fifth thoracopods. Some aspects of the deoterthrid stylet are discussed. T. hoegi is the fourth tantulocaridan described from the temporary meiobenthos.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7248

Studie van het energietransfert in de Spuikom te Oostende
Provedor de dados: 27
Autores: Polk, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7986

Evolution des populations de bactéries marines hétérotrophes au bassin de chasse d'Ostende (Belgique) en 1971
Provedor de dados: 27
Autores: Podamo, J.
A bacteriological study of the water of the "Bassin de Chasse" of Ostend (Belgium) has been done from 31 March till 29 July 1971, when the dock has been kept closed. The results show a succession of different populations of heterotrophic marine bacteria. This conclusion appears from different results: &lt;ol&gt;&lt;li&gt;total count of bacteria; &lt;/li&gt;&lt;li&gt;separate count of bacteria forming white and coloured colonies; &lt;/li&gt;&lt;li&gt;rough determination (morphology and Gram-reaction) of some bacteria. &lt;/li&gt;&lt;/ol&gt;These population-variations could be explained by variations in the organic matter of the water.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria Heterotrophic organisms Population dynamics ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3456

Turbellarians
Provedor de dados: 27
Autores: Schockaert, E.R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Turbellaria [Flatworms].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6821

Projekt Zee eindverslag: 4. Sedimentologie = Projet Mer rapport final: 4. Sédimentologie
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Gullentops, F.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288178.pdf

Quelques genres de mollusques prosobranches marins inconnus ou peu connus de l'Afrique occidentale
Provedor de dados: 27
Autores: Adam, W.; Knudsen, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy Prosobranchia Africa; West Africa.
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/294747.pdf

Observations sur le « groupe » de &lt;i&gt;Nassarius clathratus&lt;/i&gt; (Born, 1778) (Mollusca prosobranchia)
Provedor de dados: 27
Autores: Adam, W.; Glibert, M.
In this paper 20 taxa of the genus &lt;i&gt;Nassarius&lt;/i&gt; s. l., often classified by the authors under the sub-genus &lt;i&gt;Uzita&lt;/i&gt; H. et A. Adams, 1853, are described and discussed. The specimens are preserved in the zoological and paleontological collections of the « Institut Royal des Sciences Naturelles » in Brussels. They are either fossils from European and North-African Neogene strata, or recent species from the Mediterranean, Lusitanian and West-African regions. However from the British Museam of Natural History and from the « Museo Civico di Storia naturale di Milano » we have obtained photographs of the original matrial of &lt;i&gt;N. denticulatis&lt;/i&gt; (A. Adams, 1852) and of &lt;i&gt;N. prismaticus&lt;/i&gt; (Brocchi, 1814)...
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/303579.pdf

New Tetragonicipitidae (Copepoda, Harpacticoida) from the Indo-Pacific
Provedor de dados: 27
Autores: Fiers, F.; De Troch, M.
During an intensive study of the copepod associations living on the seagrass &lt;i&gt;Thalassia hemprichii&lt;/i&gt; (Ehrenberg) Ascherson in Gazi Bay (Kenya), three representatives of the harpacticoid family Tetragonicipitidae Lang, 1944 were found. &lt;i&gt;Diagoniceps laevis&lt;/i&gt; Willey, 1930 previously reported from Bermuda (type locality) and the Bahamas. was found in Gazi Bay. Comparison with the Atlantic material revealed only minor differences. &lt;i&gt;Odaginiceps immanis&lt;/i&gt; n. sp. is the fourth species of the genus, which was known until now from three species described from the Central Atlantic. The new genus &lt;i&gt;Mwania&lt;/i&gt; is defined for &lt;i&gt;M. phytocola&lt;/i&gt; n. sp. which, with its three-segmented endopodite of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology New genera New species Taxonomy Copepoda [copepods] Harpacticoida Tetragonicipitidae I; Indo-Pacific ISW; Kenya; Gazi Bay.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5001

The diatom genus &lt;i&gt;Thalassiosira&lt;/i&gt; (Bacillariophyta) in the estuaries of the Schelde (Belgium-The Netherlands) and the Elbe (Germany)
Provedor de dados: 27
Autores: Muylaert, K.; Sabbe, K.
A taxonomic and ecological study of the phytoplankton of the estuaries of the Schelde (Belgium-The Netherlands) and the Elbe (Germany) revealed the presence of numerous species belonging to the diatom genus &lt;i&gt;Thalassiosira&lt;/i&gt;. Its representatives were a dominant component of the phytoplankton spring bloom in these estuaries. A total of 13 species were identified. All of these were present in the Schelde, while only ten were found in the Elbe. Seven and five species respectively had previously not been reported from the Schelde and Elbe. A detailed light and electron microscopical description of these species is given.  Most species had their distributional optimum in the polyhaline reaches of the estuaries. Community structure in these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater environment Ecology Taxonomy Thalassiosira ANE; Germany; Elbe Estuary ANE; Netherlands; Westerschelde Belgium; Zeeschelde.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3082

Effect of salinity on the uptake of cadmium by the brine shrimp &lt;i&gt;Artemia fransiscana&lt;/i&gt;
Provedor de dados: 27
Autores: Blust, R.; Kockelbergh, E.; Baillieul, M.
The effect of salinity on cadmium uptake by the brine shrimp &lt;i&gt;Artemia fransiscana&lt;/i&gt; was studied in chemically defined saltwater solutions. Shrimp were acclimated to different salinities and exposed to the metal in solutions of differing salinity and composition. Within each acclimation group, the cadmium uptake decreased with increasing salinity of exposure. Most of this variation was explained by changes in the activity of the free metal ion. Among the acclimation groups, uptake increased by increasing salinity of acclimation. Most of this variation was explained by changes in the permeability of the shrimp. Uptake was not influenced by changes in the osmolarity or the concentration of any of the major cations in the solution. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2693

Assessment of ammonia toxicity in contaminated sediments in the upper Scheldt (Belgium): the development and application of toxicity identification evaluation procedures
Provedor de dados: 27
Autores: Van Sprang, P.; Janssen, C.R.; Sabayasachi, M.; Benijts, F.; Persoone, G.
The toxicity of sediment pore waters from 4 sites in the Upper Scheldt war characterized using modified Toxicity Identification Evaluation (TIE) procedures The samples from all locations exhibited acute toxicity to the freshwater crustacean Thamnocephalus platyurus. The IIE approach was conducted using an enlarged battery of fractionation tests. Toxicity was removed or reduced significantly by the cation exchange resins and the air-stripping test at pH 11. Additionally, increased toxicity war observed at higher pH while a reduced toxicity war found at a decreased pH. From these TIE studies, ammonia war identified as the dominant toxic agent.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metals; River; Toxicants; Water.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7459

The western sand extraction area on the Belgian continental shelf
Provedor de dados: 27
Autores: Maertens, D.
This paper describes ecological characteristics of the western sand extraction area off the Belgian coast. A review of scientific research is given with special reference to a long term ecological monitoring programme.Relevant clauses concerning the exploration and exploitation of the Belgian continental shelf were elaborated in the law of 13 June 1969. In application to this law two Royal Decrees were published to regulate exploitation.The ecological monitoring programme investigated benthic communities and demersal fish population since 1977. Close attention was paid to the evolution of dominant species belonging to the epibenthic fauna e.g. the brittle stars (&lt;i&gt;Ophiura texturata&lt;/i&gt; and &lt;i&gt;Ophiura albida&lt;/i&gt;), the common...
Tipo: Info:eu-repo/semantics/book
Palavras-chave: ANE; Belgium; Belgian Continental Shelf (BCS).
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2992

Characterisation of particulate matter from the Kara Sea using electron probe X-ray micro analysis
Provedor de dados: 27
Autores: Jambers, W.; Smekens, A.; Van Grieken, R.; Shevchenko, V.P.; Gordeev, V.
Automated electron probe X-ray micro-analysis (EPXMA) was used to characterise 17,600 individual particles collected in the Kara Sea and in the estuary of the Yenisey River. Samples were obtained by filtering and centrifugation of particles in suspension and from bottom sediments. Multivariate techniques were used to reduce the enormous data sets. By testing hierarchical, non-hierarchical and fuzzy clustering on the centrifuged suspension samples, it was shown that hierarchical clustering is most suitable. The two other clustering methods are very time consuming and in most cases do not add any additional information. This hierarchical clustering of the data matrix results in different particle types which can be apportioned to their possible sources. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Suspended particulate matter X-ray spectroscopy PNE; Kara Sea.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2954

Study of the oxygen binding properties of &lt;i&gt;Artemia&lt;/i&gt; hemoglobins
Provedor de dados: 27
Autores: Wolf, G.; Vanpachtebeke, M.; Hens, F.; Decleir, W.; Moens, L.; Van Hauwaert, M.-L.
The physiological properties of total haemoglobin samples from &lt;i&gt;Artemia&lt;/i&gt; populations of different geographical origin (Tientsin, Great Salt Lake, Chaplin Lake, Macau, Galera Zamba) have been studied &lt;i&gt;in vitro&lt;/i&gt;. Measurements carried out with the diffusion chamber technique at different pH-values and temperatures, revealed significant differences in oxygen affinity (p50 values between 1.25 and 16.33 mm Hg), cooperativity (Hill coefficients between 1.07 and 2.18) and free oxygen-binding energy (between -34.7 and 56.2 Kj/mol). All the strains showed a decrease of oxygen affinity with increasing temperature, and a positive Bohr effect. Tientsin containing a considerable amount of Hbl (36.6%), shows the lowest oxygen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3231

The structure and components of European estuarine fish assemblages
Provedor de dados: 27
Autores: Elliot, M.; Dewailly, F.
This paper discusses the structure of fish assemblages using information from 17 European estuarine areas (in the British Isles, Portugal, Belgium, France, the Netherlands, Germany, Norway and Spain). Binary (presence/absence) and quantitative data for each assemblage have been used to assess the assemblage structure according to taxonomy (&lt;em class="a-plus-plus"&gt;i.e.&lt;/em&gt; species identity). Following this, a total of 29 functional guilds were created in order to describe the use made of an estuarine area for each taxon encountered: feeding preferences, reproduction type, substratum preferences (for bottom dwelling fish) and position within the water column (vertical preference guild). The paper focuses on the designation and determination of...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/317599.pdf

New species of &lt;i&gt;Archilina&lt;/i&gt; Ax 1959 (Platyhelminthes Proseriata) from the Red Sea and the Caribbean
Provedor de dados: 27
Autores: Curini-Galletti, M.C.; Martens, P.M.
Four new species of the genus &lt;i&gt;Archilina&lt;/i&gt; Ax are described from tropical areas: &lt;i&gt;A. euglypta&lt;/i&gt; n. sp. and &lt;i&gt;A. batiae&lt;/i&gt; n. sp. from Red Sea; &lt;i&gt;A. stylifera&lt;/i&gt; n. sp. and &lt;i&gt;A. opisthobursa&lt;/i&gt; n. sp. from the Carribean (Puerto Rico). The karyotypes of all species are given: three of them have karyotypes derived from the basic set of the family Monocelididae. A sister-species relationship is proposed for the Carribean species based on the backwater position of the bursa. Because of this feature, the genus diagnosis is modified. The two Carribean species are considered as a separate evolutionary line within the genus &lt;i&gt;Archilina&lt;/i&gt;
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Archilina ASW; Caribbean.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2955

Improvements in the larviculture of turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt;: zootechnical and nutritional aspects, possibility for disease control
Provedor de dados: 27
Autores: Dhert, Ph.; Lavens, P.; Dehasque, M.; Sorgeloos, P.
The rotifer feeding regime for larval turbot could be improved by more regular feeding and adjusted food distributions as to prevent overfeeding and digestion problems. All tests were successfully run in clear-water conditions indicating that the administration of algae is not essential during the rotifer stage. Larval requirements with respect to (n-3) RUFA, and more specifically DRA and DRA/EPA ratio appeared to change according to the age of the larvae and the physiological condition at the different larval stages. As early as the first week the stress resistance of the larvae could be improved by feeding rotifers specifically enriched in DRA. However, the continuous feeding of these live preys did not result in the best larval output, indicating that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758).
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2553

Critique of some practices in life-history studies, with special references to harpacticoid copepods
Provedor de dados: 27
Autores: Bergmans, M.
Published studies on the demography and reproductive strategies of harpacticoid copepods are examined critically. At the technical level, the popular approximation &lt;i&gt;r&lt;/i&gt; = ln R&lt;sub&gt;0&lt;/sub&gt;/T&lt;sub&gt;c&lt;/sub&gt; is shown to be inappropriate as an estimate of the intrinsic rate of increase of harpacticoids. It leads to a systematic underestimation, by 8-29%, for life histories typical of fast-breeding species. Various &lt;i&gt;ad hoc&lt;/i&gt; variants of &lt;i&gt;r&lt;/i&gt; and &lt;i&gt;R&lt;sub&gt;0&lt;/sub&gt;&lt;/i&gt; calculations occurring in the literature are also criticized. At the conceptual level, a more discriminating approach to life-history characteristics is necessary; this applies both to the assessment of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life history; Copepoda [copepods].
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3311

The mysid-feeding guild of demersal fishes in the brackish zone of the Westerschelde estuary
Provedor de dados: 27
Autores: Hostens, K.; Mees, J.
The demersal fish fauna of the mesohaline zone of the Westerschelde estuary (south-west Netherlands) was sampled intensively in the period 1990-1992. Almost 500 beam trawl samples were taken in both subtidal (330 samples) and intertidal (144 samples) habitats. These yielded 44 fish species, mostly as juveniles. The area functioned as a nursery for several demersal fish species, and harboured large populations of hyperbenthic mysids. Three gobies, three flatfish, one clupeoid and one gadoid dominated the fish fauna, while three mysid species were important components of the holohyperbenthos. From c. 1500 stomach contents of 25 fish species, 44 prey species were identified, the most abundant of which were also common in the hyperbenthal. The demersal fish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological sampling Brackishwater fish Demersal fisheries Estuaries Feeding Feeding behaviour Population dynamics Predation Prey selection Clupea harengus Eurytemora affinis Gastrosaccus spinifer (Goës; 1864) Merlangius merlangus [Whiting] Mesopodopsis slabberi (Van Beneden; 1861) Neomysis integer (Leach; 1814) [An opossum shrimp] Pleuronectes flesus (Linnaeus; 1758) [Flounder] Pleuronectes platessa [Plaice] Pomatoschistus lozanoi (de Buen; 1923) [Lozano's goby] Pomatoschistus minutus (Pallas; 1770) [Sand goby] Temora longicornis (Müller; 1792) Trigla lucerna Linnaeus; 1758 Trisopterus luscus (Linnaeus; 1758) ANE; Netherlands; Westerschelde ANE; Netherlands; Zeeland.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4018

Improvement of the semiautomated headspace analysis method for the determination of methylmercury in biological samples
Provedor de dados: 27
Autores: Lansens, P.; Baeyens, W.F.J.
An improvement in the extraction step in the method of Decadt et al. for determining methylmercury in biological tissues is described. The methylmercury is released from the tissue by use of sulphuric acid as the cleaving agent and immediately converted to the iodide form by iodoacetic acid. These reaction steps take place in a closed headspace vial. The methylmercury iodide is then headspace-injected into a gas-chromatograph and detected with a microwave-induced plasma detector. Quantitation is accomplished by standard addition. Analysis of one sample takes less than 15 min. The detection limit of the method is 20 ng methylmercury per gram biological tissue when 50 mg of tissue are taken.
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3091

Characterization of the atmospheric aerosol over the eastern equatorial Pacific
Provedor de dados: 27
Autores: Maenhaut, W.; Raemdonck, H.; Selen, A.; Van Grieken, R.; Winchester, J.W.
By using a polyester sailboat as sampling platform, a series of duplicate aerosol samples was collected by cascade impactors on a trip from Panama to Tahiti in 1979. Elemental analysis mainly by particle-produced X-ray emission (PIXE) indicated, in the samples collected between Panama and the Galapagos Islands, the presence of a substantial crustal component (0.4 µg/m³), fine Cu (0.4 ng/m³ and Zn (0.6 ng/m³), and excess fine S and K (100 and 2.4 ng/m³, respectively in addition to the major sea salt elements. The crustal component and fine Cu and Zn are suggested to result from natural continental sources (i.e., eolian dust transport from the American continents and perhaps geothermal emissions). Samples collected west of the Galapagos Islands in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols IS; Equatorial Pacific.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3398

Vlaamse visserij en vissersvaartuigen: 1. De havens
Provedor de dados: 27
Autores: Desnerck, G.; Desnerck, R.
Tipo: Info:eu-repo/semantics/book
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9601

De weekdieren van de schorren van het Schelde-estuarium
Provedor de dados: 27
Autores: Bruyndoncx, L.; Jordaens, K.; Meire, P.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280702.pdf

Successful inoculation of &lt;i&gt;Artemia&lt;/i&gt; and production of cysts in man-made salterns in the Philippines
Provedor de dados: 27
Autores: de los Santos, C. Jr.; Sorgeloos, P.; Laviña, E.; Bernardino, A.
The objective of the inoculation described in this paper was to test the feasibility of culturing &lt;i&gt;Artemia&lt;/i&gt; in man-made earthen salterns and of producing adults and cysts for use in aquaculture projects in the Philippines. San Francisco Bay (California, USA) &lt;i&gt;Artemia&lt;/i&gt; were inoculated in two concrete tanks and in four earthen ponds which are part of a small local salt factory. It was found that &lt;i&gt;Artemia&lt;/i&gt; can be grown (with continuous production of nauplii and cysts) year-round in covered concrete tanks and in open concrete tanks and earthen ponds during the dry season (February to June). Lethal effects of too high water temperatures (&gt;35°C) to the cultures were anticipated by the use of green coconut...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts Artemia ISEW; Philippines.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3617

A demographic study of the life cycle of &lt;i&gt;Tisbe furcata&lt;/i&gt; (Baird, 1837) (Copepoda: Harpacticoida)
Provedor de dados: 27
Autores: Bergmans, M.
The life-cycle of the harpacticoid copepod &lt;i&gt;Tisbe furcata&lt;/i&gt; (Baird, 1837) at 18°C was studied quantitatively. Stage durations were determined by two different methods, using synchronous cohorts. Combined nauplius stages last for 80.4h; the successive copepodite stages take 23.0, 23.2, 28.0 (females) to 23.2 (males), 33.4 (females) to 24.2 (males) and 48.8 (females) to 34.7 (males) h, respectively. Females develop more slowly but more synchronously than males. Age-specific survival and fertility rates were used to calculate the stable stage distribution in an exponentially growing population. From life-table data the following demographic parameters were computed: intrinsic rate of natural increase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle Tisbe furcata (Baird; 1837) ANE; Belgium; Oostende; Sluice Dock.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3705

The use of algal substitutes and the requirement for live algae in the hatchery and nursery rearing of bivalve molluscs: an international survey
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
The mass-production of micro-algae has been recognized by several authors as the main bottle-neck for the culture of bivalve seed. This has prompted a search for alternatives to on-site algal production, such as dried heterotrophically-grown algae, preserved algal pastes, micro-encapsulated diets, and yeasts. However the extent to which these products have been tried, and rejected or retained by hatchery operators is poorly documented. Also, the actual algal requirement and production cost of the bivalve seed industry is difficult to estimate.The present inquiry allowed the collection of data concerning the requirement of live algae and its associated costs encountered in 50 commercial and experimental hatcheries from all over the world. Furthermore, the...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/113466.pdf

Incorporation of different fatty acids, supplied as emulsions or liposomes, in the polar and neutral lipids of &lt;i&gt;Crassostrea gigas&lt;/i&gt; spat
Provedor de dados: 27
Autores: Caers, M.; Coutteau, P.; Sorgeloos, P.
Pacific oysters spat (&lt;i&gt;Crassostrea gigas&lt;/i&gt;) were fed an algal diet (&lt;i&gt;Tetraselmis suecica&lt;/i&gt;) whether or not supplemented with emulsions or liposomes rich in 18:1&lt;i&gt;n&lt;/i&gt;-9, 18:2&lt;i&gt;n&lt;/i&gt;-6 and 22:6&lt;i&gt;n&lt;/i&gt;-3. The preferential accumulation and partitioning of the latter fatty acids between the polar and neutral lipids of &lt;i&gt;C. gigas&lt;/i&gt; spat were followed. Additionally, the efficiency of emulsions and liposomes as fatty acid carriers for &lt;i&gt;C. gigas&lt;/i&gt; spat were compared. The incorporation of dietary fatty acids was found to vary substantially according to the fatty acid carrier (emulsions vs. liposomes), the particular fatty acid (18:1&lt;i&gt;n&lt;/i&gt;-9,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acids; Feeding experiments; Larval development; Lipids; Liposomes; Liposomes; Oyster culture; Polyunsaturated fatty acids; Spat; Crassostrea gigas [Portuguese oyster].
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3512

Dietary phospholipids for European seabass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt; L.) during first ongrowing
Provedor de dados: 27
Autores: Geurden, I.; Coutteau, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2564

Dry aerosol deposition over the North Sea estimated from aircraft measurements
Provedor de dados: 27
Autores: Rojas, C.; Otten, P.; Van Grieken, R.; Laane, R.W.P.M.
A mathematical approach based on the Monin-Obukhov similarity theory is used to predict the wind speed, friction velocity and drag coefficient, which are then introduced in the well-known deposition model of Slinn and Slinn (1980), to calculate the dry deposition of heavy metals into the North Sea. This model is perfectly suitable for aircraft sampling considering the fact that usually due to safety reasons, flights at the reference height used in deposition models (10m), are not possible. To check this approach, deposition velocities were calculated based on the airborne concentrations of Cu, Cd, Zn and Pb obtained by sampling with the aid of an aircraft over the Dutch continental shelf of the North Sea. Results are in agreement with those found in the...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262330.pdf

Comparative study of different geographical strains of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt;
Provedor de dados: 27
Autores: Claus, C.; Benijts, F.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3559

Stranding of sperm whales &lt;i&gt;Physeter macrocephalus&lt;/i&gt; in the North Sea: history and patterns
Provedor de dados: 27
Autores: Smeenk, C.
Stranding of sperm whales &lt;i&gt;Physeter macrocephalus&lt;/i&gt; L., 1758 in the countries bordering the North Sea has been documented since the end of the 16th century. All known strandings in this area are summarized. There is no clear temporal pattern in the occurrence of sperm whales in the North Sea except that there are very few strandings between the late 18th and early 20th century. All sperm whales of which details are known have been males, ranging from about 12 to 18 m in size. Most strandings occur during the period November-February. It seems likely that the majority of sperm whales enter the North Sea during southward migration. If the animals do not find their way out in time, they become weakened and many will die at sea or become...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Historical account Stranding Physeter macrocephalus [Sperm whale] ANE; North Sea.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/235238.pdf

The effect of &lt;i&gt;Artemia&lt;/i&gt; -supplementation of dry foods on growth and survival of &lt;i&gt;Clarias gariepinus&lt;/i&gt; (Burchell 1822) larvae
Provedor de dados: 27
Autores: Van Damme, P.; Pacolet, W.; Sulem Yong, S.; Fremaut, D.; Ollevier, F.P.
Two experiments were performed in order to determine the effect of supplementation of dry foods with live &lt;i&gt;Artemia&lt;/i&gt; nauplii on the growth, survival, rate of cannibalism, and length-weight relationships of &lt;i&gt;Clarias gariepinus&lt;/i&gt; larvae. It was found that &lt;i&gt;Artemia&lt;/i&gt; -supplementation resulted in a significantly higher growth rate. The "condition", expressed as a length-weight relationship, was likewise altered after supplementation. The survival and rate of cannibalism were not influenced by supplementation. &lt;i&gt;Artemia&lt;/i&gt; -supplementation of dry foods was compared with other approaches which are based on the concept of the 'adaptation weight'.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adaptations; Freshwater fish; Weight; Artemia; Clarias gariepinus.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3193

Advances in the enrichment of rotifers and &lt;i&gt;Artemia&lt;/i&gt; as food sources in marine larviculture
Provedor de dados: 27
Autores: Léger, P.; Grymonpré, D.; Van Ballaer, E.; Sorgeloos, P.
A summary is given of experiments conducted regarding the enrichment of rotifers and &lt;i&gt;Artemia&lt;/i&gt; for use as food sources marine larviculture, with particular reference to levels of omega 3-HUFA.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brine shrimp culture; Crustacean culture; Fatty acids; Food organisms; Nutritive value; Artemia; Rotifera.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2880

The hyperbenthos
Provedor de dados: 27
Autores: Mees, J.; Jones, M.B.
The hyperbenthos is a term applied to the association of small animals living in the water layer close to the sea bed. The species composition of the hyperbenthos is distinctly different from that of other benthic and planktonic groupings, and includes endemic species, planktonic species derived from their downward extensions (often with seasonal periodicity) and endo- or epibenthic species as they emerge into the water column (usually in diel cycles). In nearly all marine ecosystems investigated to date, there is a general increase in the biomass at the benthic boundary layer (hyperbenthon) relative to the water column immediately above it, yet the zone and its fauna remain relatively poorly studied. Sampling these often highly mobile animals is not easy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos; Literature reviews.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=492

A revision of the genus &lt;i&gt;Laophontina&lt;/i&gt; Norman &amp; T. Scott (Copepoda, Harpacticoida)
Provedor de dados: 27
Autores: Fiers, F.
The genus &lt;i&gt;Laophontina&lt;/i&gt; is revised after re-examination of the typeseries of the species and analyses of new materials from the East African coast and the Caribbean. The genus &lt;i&gt;Laophontina&lt;/i&gt; as redefined herein unifies &lt;i&gt;L. dubia, L. acantha, L. noodti,&lt;/i&gt; and &lt;i&gt;L. posidoniae&lt;/i&gt;. The recently described &lt;i&gt;L. paradubia&lt;/i&gt; is considered as conspecific with &lt;i&gt;L. dubia&lt;/i&gt;. All other species presently assembled in the genus are allocated to different genera. &lt;i&gt;Galapalaophonte&lt;/i&gt; is redefined and comprises &lt;i&gt;G. pacifica, G. triarticulata&lt;/i&gt; and &lt;i&gt;G. variabilis&lt;/i&gt; besides four new species. &lt;i&gt;Laophontina distincta&lt;/i&gt; and...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/303518.pdf

Turbellaria Polycystididae (Turbellaria, Kalyptorhynchia) from the Marseille-area: 2. &lt;i&gt;Gallorhunchus simplex&lt;/i&gt; n.g. n.sp. and &lt;i&gt;G. mediterraneus&lt;/i&gt; n.sp.
Provedor de dados: 27
Autores: Schockaert, E.R.; Brunet, M.
Two new species of Polycystididae from the french area of the Mediterranean sea are described and included in the new genus. &lt;i&gt;Gallorhynchus&lt;/i&gt;. The female duct is a ductus uterocommunis, the gonade are unpaired. The male copulatory organ has an interposed prostatic part and no free prostatic vesicle. The cuticular apparatus consists of two concentric stylets.In &lt;i&gt;Gallorhynchus simplex&lt;/i&gt; n. sp. the outer stylet is ornamentated with spirally arranged edges and 190 µ long. An accessory cuticular organ is lacking
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gallorhunchus mediterraneus Gallorhunchus simplex Kalyptorhynchia Turbellaria [Flatworms] MED; France; Provence-Cote d'Azur; Marseille.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6713

The effect of HUFA and vitamin C-enriched rotifers on larval growth and survival of grouper (&lt;i&gt;Epinephelus suillus&lt;/i&gt;)
Provedor de dados: 27
Autores: Chavez, D.R.; Estenor, D.G.; Merchie, G.; Lavens, P.
Newly-hatched grouper larvae were reared for 24 days at a density of 15 larvae.l&lt;sup&gt;-1&lt;/sup&gt; in 250-l capacity cylindro-conical tanks filled with 200l seawater. Starting day 2, the larvae were given: &lt;i&gt;Chlorella&lt;/i&gt;-fed rotifers (Chl-R) rotifers fed Culture Selco (INVE Aquaculture NV, Belgium) (CS-R), and rotifers fed Culture Selco and consequently enriched for 24h with 20% vitamin C (CSC-R). The rotifer density in the larval tanks was maintained at 15 rotifers.ml&lt;sup&gt;-1&lt;/sup&gt;. The rotifer diet was supplemented with egg yolk until day 5. Each treatment had five replicates. Preliminary results show no significant difference in the survival rate of grouper larvae given Chl-R (4.21±2.8%), CS-R (2.56±0.9%) and CSC-R...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acids; Feeding experiments; Growth; Larvae; Survival; Vitamin C; Chlorella; Epinephelus suillus; Rotifera.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2537

Determination of nitrate ion in marine biotopes with high nitrate content by ultraviolet spectrophotometry
Provedor de dados: 27
Autores: Mertens, J.; Massart, D.L.
A simple and rapid method for the determination of nitrate in seawater of high nitrate content (&gt;1 ppm) is proposed. The absorption of the nitrate ion is measured at 210 and 220 mµ. The sample is treated with a measured quantity of hydrochloric acid to eliminate the carbonate and bicarbonate interferences and measured against a nitrate free blank prepared by reduction of the nitrate to ammonia with Raney nickel. The addition of HCl permits also storage of the sample without special precautions and the use of the blank eliminates the most serious of the interferences (bromide) expected in seawater. The interference of organic matter limits however the applicability of the method to concentrations higher than 1 ppm.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marine environment; Nitrates; Spectroscopy.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3424

Lijst van de recente mariene mollusken van België
Provedor de dados: 27
Autores: Backeljau, T.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Bibliographic information Check lists Epitonium clathrus Mollusca [Molluscs] ANE; Belgium.
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/276379.pdf

Structure and function of the benthos in estuarine and coastal marine ecosystems in relation to the present and future anthropogenic impact
Provedor de dados: 27
Autores: Vincx, M.; Mees, J.; Steyaert, M.; Dewicke, A.; Fockedey, N.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/273123.pdf

Studie van de heterotrofe bacteriën van de oppervlakte-sedimenten uit de Noordzee
Provedor de dados: 27
Autores: Boeye, A.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288155.pdf

Rearing techniques for difficult marine fish larvae
Provedor de dados: 27
Autores: Dhert, Ph.; Divanach, P.; Kentouri, M.; Sorgeloos, P.
In finfish mariculture, seed production and larval rearing still form the bottleneck for all ongrowing operations and are considered as the main limiting factor for industrial development. Through trial and error more than through biological understanding two opposite hatchery techniques have been developed which surprisingly control a multiparametric combination of different factors but aspire to the same objective of conformity with wild standards and the cost-effective production of larvae. In intensive aquaculture, the rearing technique is characterised by high initial larval densities in small tanks under strict hydraulic, thermic, and nutritional conditions. The light conditions are artificial. The temperature and quality of water are controlled. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Environmental conditions; Fish eggs; Fish larvae; Food organisms; Industrial production; Marine fish; Rearing; Seed (aquaculture); Artemia; Brachionus plicatilis; Pisces [Fish].
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=301

Projekt Zee eindverslag: 11a. Verontreiniging van het Belgisch waterwegennet en de kustzone, verzameling van de gegevens: Maas en bijrivieren = Projet Mer rapport final: 11a. Niveaux de pollution du reseau hydrographique et de la zone côtière belges, recueil des données: Meuse et affluents
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Boelen, C.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288158.pdf

New type of turbidostat with intermittent determination of cell density outside the culture vessel
Provedor de dados: 27
Autores: Sorgeloos, P.; Van Outryve, E.; Persoone, G.; Cattoir-Reynaerts, A.
An inexpensive turbidostat featuring intermittent determination of optical density in an interchangeable measuring tube and incorporating electronic circuits for the automated mechanics is described.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3529

Nématodes abyssaux (campagne Walda du N/O &lt;i&gt;Jean Charcot&lt;/i&gt;): VI. Le genre &lt;i&gt;Acantholaimus&lt;/i&gt;: espèces nouvelles et étude de l'appareil reproducteur à spermatozoïdes géants
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
Three new species of the genus Acantholaimus are described from deep-sea South- East Atlantic oozes (Walvis ridge, depth from 2 063 to 4 308 m) : A. microdontus n. sp., A. macramphis n. sp., and A. longistriatus n. sp. Within the genus, the reproductive apparatus displays a noticeable uniformity coupled with a very unusual male reproductive system producing a small number of giant spermatozoa, of which only two were found in each inseminated female. Four additional species studied from the same sites display the same reproductive pattern : A. quintus, A. septimus, A. maks and A. iubilus ( G E R L A C H et al., 1979). The same phenomenon has also been found in a littoral species (at most four spermatozoa in the inseminated female).
Tipo: Info:eu-repo/semantics/article
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/276501.pdf

Sedimentologisch onderzoek van de Spuikom te Oostende
Provedor de dados: 27
Autores: Wollast, R.; Dehairs, F.A.
Thirty sediment samples of the Scour Basin in Ostend were analysed for the boulder content, detric elements, carbonates, organic material and their Zn, S, Cu, Mn and P concentration were determined. Then correlations between all these factors were determined. The spread of most factors appeared bound to those of the boulder.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sediment analysis Sediments ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/327693.pdf

Modelling (partly) cohesive sediment transport in sewer systems
Provedor de dados: 27
Autores: Berlamont, J.; Torfs, H.
Although the basic mechanisms of sediment transport in sewers are the same as in rivers, it is not necessarily appropriate to use the many mode1s that have been developed for sediment transport in rivers also in sewers. Different reasons are: 1) sewer sediments are often mixtures of cohesive and non cohesive material, and the bed is often stratified: 2) due to consolidation of the (partly cohesive) bed material, the erosion resistance of the bed may vary with time; 3) the flow conditions in sewers are usually unsteady, which is not accounted for in the classical sediment transport mode1s; 4) existing models have been derived from experiments in rectangu1ar flumes: the results are not directly applicable to sewers with circular cross section where the...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2946

Revision of &lt;i&gt;Desmodora&lt;/i&gt; with descriptions of new Desmodorids (Nematoda) from hydrothermal vents of the Pacific
Provedor de dados: 27
Autores: Verschelde, D.; Gourbault, N.; Vincx, M.
In this article four species of Desmodoridae, &lt;i&gt;Desmodora alberti&lt;/i&gt; sp. nov., &lt;i&gt;Desmodora marci&lt;/i&gt; sp. nov., &lt;i&gt;Desmodorella balteata&lt;/i&gt; sp. nov. and &lt;i&gt;Desmodorella spineacaudata&lt;/i&gt; sp. nov. (Nematoda: Desmodoridae), are described from hydrothermal vents of the Pacific. The genus &lt;i&gt;Desmodora&lt;/i&gt; is revised and lists of valid species are provided; four subgenera are reinstated as genera; &lt;i&gt;Xenodesmodora&lt;/i&gt; is regarded as genus inquirendum. Definitions of some morphological structures are given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: North.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7321

Meiobenthos of the central Arctic Ocean with special emphasis on the nematode community structure
Provedor de dados: 27
Autores: Vanreusel, A.; Clough, L.M.; Jacobsen, K.; Ambrose, W.; Jivaluk, J.; Ryheul, V.; Herman, R.; Vincx, M.
We investigated the abundance of the meiobenthos and the biomass and community structure of the nematodes in the central Arctic Ocean along two separate transects during 1991 and 1994. Meiobenthos abundances ranged from &lt; 100 to 600 individuals per 10 cm², in the same order of magnitude as in other oligotrophic areas of the world's deep ocean. Nematodes were the numerically dominant meiofaunal group at every station. Nematode biomass ranged from &lt; 1 to 48 µg dry weight per 10 cm². A combination of water depth and latitude explained 55% of the variability among stations in nematode biomass and 67% of the variability of total abundance, implying that both vertical and advective fluxes are important sources of food to the meiofaunal communities. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition; Marine invertebrates; Meiobenthos; Spatial variations; Zoobenthos; Monhystera; Nematoda [Nematodes]; Pitcairn I.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7425

Analysis of the nutritional condition of fish larvae: studies with &lt;i&gt;Clarias gariepinus, Coregonus lavaretus&lt;/i&gt; and &lt;i&gt;Scophthalmus maximus&lt;/i&gt;
Provedor de dados: 27
Autores: Segner, H.; Rösch, R.; Verreth, J.; Witt, U.
Among the environmental variables influencing the performance of fish larvae, the quantity and quality of food belong to the more important ones. Alterations of nutritional condition affect, apart from changing growth and survival, a number of structural and molecular parameters of the larvae. Particularly the absence of food has pronounced effects on histological features of, &lt;i&gt;e.g.&lt;/i&gt; the liver and the intestine, on activities of digestive proteolytic enzymes, as well as on RNA/DNA ratios. The starvation-related changes are similar for the larvae of totally different fish species, &lt;i&gt;e.g. Clarias gariepinus&lt;/i&gt;, a tropical freshwater species, the whitefish &lt;i&gt;Coregonus lavaretus&lt;/i&gt;, from temperate freshwaters, or...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2889

Monsoons and coastal ecosystems in Kenya
Provedor de dados: 27
Autores: Heip, C.H.R.; Hemminga, M.A.; de Bie, M.J.M.
Tipo: Info:eu-repo/semantics/book
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8748

Gelyelloida, a new order of stygobiont copepods from European karstic systems
Provedor de dados: 27
Autores: Huys, R.
A new order, Gelyelloida, is proposed for Gelyella Rouch &amp; Lescher-Moutoué,1977(ex Harpacticoida), an enigmatic genus of freshwater-inhabiting copepod from European karstic systems. The new order is characterized by a unique combination of generalised gnathostomous mouth parts and unusual derived features, some of them suggesting a possible neotenic origin for the order. It is suggested that gelyellids have had a long evolutionary history and separated as an early offshoot of the main cyclopoid lineage.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7049

Role of the meiobenthos in Antarctic ecosystems
Provedor de dados: 27
Autores: Vanhove, S.; Wittoeck, J.; Beghyn, M.; Van Gansbeke, D.; Van Kenhove, A.; Coomans, A.; Vincx, M.
To date meiobenthic research remained a big white spot in the systematic-ecological work on Antarctic zoobenthos. Therefore the relative importance of the meiofauna (organisms within the size range of 38-1000µm) in the Antarctic benthic community has been assessed by a combined field ecology and experimental approach. This was done in two contrasting conditions, e.g. the deep sea and low subtidal, where as to the depth of the water column the benthic characteristics were, respectively, indirectly or directly related to primary production. Deep-sea samples were collected at Kapp Norvegia and Halley Bay (Weddell Sea) during the EPOS-leg 3-campaign (summer 1989) with the RV Polarstern at depths between 200 and 2000 m. Samples for the ecological-experimental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecosystems Meiobenthos PS; Antarctic Ocean PS; Antarctica.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8938

On the vertical distribution of metazoan meiofauna in shelf break and upper slope habitats of the NE Atlantic
Provedor de dados: 27
Autores: Vanreusel, A.; Vincx, M.; Schram, D.; Van Gansbeke, D.
The metazoan meiofauna of nine stations in shelf break and upper slope areas (70 to 1500 m water depth) of the N.E. Atlantic were investigated in order to assess which environmental factors are important in the control of densities and sediment profiles. Total meiofaunal densities (ranging between 368 and 1523 ind/10 cm&lt;sup&gt;2&lt;/sup&gt; were correlated with bacterial densities, an important food source for meiofauna. However, considering sediment vertical distribution profiles, the relative importance of both food and oxygen on the meiofauna became obvious. A combination of both bacterial densities and oxygen supply could explain about 95% of the variability in the vertical profiles of the meiofauna densities. Meiofauna numbers increase in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiofauna; Vertical profiles.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7279

La flore algale des hauts-fonds des Ridens (Boulogne, France)
Provedor de dados: 27
Autores: Coppejans, E.
During a scuba survey on the rock formation "Les Ridens", at 21 km outside the Boulogne (northern France) coast, and at 20m depth, 5 different algae were collected, hitherto not yet found &lt;i&gt;in situ&lt;/i&gt; along the coast: the Phaeophyta &lt;i&gt;Halidrys siliquosa&lt;/i&gt; and the Rhodophyta &lt;i&gt;Brongniartella byssoides, Calliblepharis ciliata, Delesseria sanguinea, Heterosiphonia plumosa&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae ANE; France; Boulogne.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3237

Projekt Zee eindverslag: 2. Aanwinst en compilatie van gegevens = Projet Mer rapport final: 2. Acquisition et compilation des données
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Pichot, G.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288177.pdf

Influence de la circulation des masses d'eaux dans la dynamique du peuplement &lt;i&gt;Abra alba&lt;/i&gt; de la Baie sud de la mer Nord = Influence of the circulation of water masses in the dynamics of the population &lt;i&gt;Abra alba&lt;/i&gt; of the southern Bay of the North Sea
Provedor de dados: 27
Autores: Dewarumez, J.-M.; Belgrano, A.; Craeymeersch, J.A.; Duquesne, S.; Heip, C.H.R.; Hilde, D.; Vincx, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abra alba (W. Wood; 1802) [White furrow shell] ANE; North Sea; Southern Bight.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7253

A case study of ships forming and not forming tracks in moderately polluted clouds
Provedor de dados: 27
Autores: Noone, K.J.; Öström, E.; Ferek, R.J.; Garrett, T.; Hobbs, P.V.; Johnson, D.W.; Taylor, J.P.; Russell, L.M.; Flagan, R.C.; Seinfeld, J.H.; O'Dowd, C.D.; Smith, M.H.; Durkee, P.A.; Nielsen, K.; Hudson, J.G.; Pockalny, R.A.; De Bock, L.; Van Grieken, R.E.; Gasparovic, R.F.; Brooks, I.
The effects of anthropogenic particulate emissions from ships on the radiative, microphysical, and chemical properties of m(oderately polluted marine stratiform clouds are examined. A case study of two ships in the same air mass is presented where one of the vessels caused a discernible ship track while the other did not. &lt;i&gt;In situ&lt;/i&gt; measurements of cloud droplet size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to measurements of cloud radiative properties. The differences between the aerosol in the two ship plumes are discussed; these indicate that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols; Air pollution; Albedo; Anthropogenic factors; Atmospheric boundary layer; Atmospheric particulates; Chemical plumes; Cloud physics; Clouds; Droplets; Fuels; Ocean-atmosphere system; Pollution effects; Radiative transfer; Ships; Size distribution.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8840

Pathological investigations on sperm whales stranded on the Belgian and Dutch coasts
Provedor de dados: 27
Autores: Jauniaux, T.; Brosens, L.; Jacquinet, E.; Lambrigts, D.; Coignoul, F.
On November 18, 1994, four sperm whales were discovered dead on the Belgian coast, and on January 12, 1995, three live sperm whales stranded on the Dutch coast. Necropsies were conducted following a standardized procedure and samples were collected. Two Belgian sperm whales had a severe weight deficit and the Dutch sperm whales had reductions in blubber thickness. Agonal lesions such as visceral passive congestion and lung edema were due to the stranding. Significant lesions included acute ulcerations of the skin and acute to subacute ulcerative stomatitis. Severe diffuse subacute to chronic ulcerative external otitis was noted in four animals. Progressive weakness and/or potential alterations of echolocation might have predisposed these sperm whales to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marine pollution Migration Migration Migration Migrations Pathology Pollution Populations Populations Stranding Whaling ANE; Belgium ANE; Netherlands ANE; North Sea; Southern Bight.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=832

Atmospheric particulate element concentrations and deposition rates in French Polynesia
Provedor de dados: 27
Autores: Rojas, C.M.; Injuk, J.; Van Grieken, R.E.; Maenhaut, W.
Over a period of eight months, a total of 26 atmospheric particulate matter samples were collected at the location of Tahiti and in other areas of French Polynesia, using a specially equipped sailboat. A 6-stage cascade impact or was used to separate aerosols in the following size classes: &gt; 4,2-4, 1-2,0.5-1,0.25-0.5 and &lt; 0.25 µm equivalent aerodynamic diameter. The resulting set of 156 size segregated aerosol samples was analyzed by particle-induced X-ray emission for 16 elements. This study deals with the concentrations of Na, Mg, Al, Si, S, Cl, K, Ca, Ti, Mn, Fe, Cu, Zn, Br, Sr and Pb. Enrichment factor calculations reveal that Na, Mg, S, A, K, Ca and Sr were little fractionated with respect to bulk sea water, whereas Al, Si, Ti, Mn and Fe...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Heavy metals Multivariate analysis Sedimentary environments ISE; French Polynesia.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7134

Daily ration of juvenile &lt;i&gt;Pomatoschistus lozanoi&lt;/i&gt; de Buen (Pisces: Gobiidae)
Provedor de dados: 27
Autores: Hamerlynck, O.; Cattrijsse, A.; Arellano, R.V.
In order to estimate daily ration of juvenile &lt;i&gt;Potamoschistus lozanoi&lt;/i&gt; and to evaluate the effect of tide and daylight on its feeding activity, two 24h samplings were performed, one (in 1985) with high water around midnight, the other (in 1986) with low water around midnight. Incidently, the sampling in 1985 was around neap tide and in 1986 it was around spring tide. The fish were observed to feed more intensively during the night. Daily ration in 1985 was estimated to be about 1% of body ash-free dry weight (ADW). For 1986, the estimate is about 5% of body ADW in spite of similar water temperatures at both sampling dates. It is suggested that a semilunar rhythm, either in the fish or in the invertebrate prey, is the basis of the observed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pomatoschistus lozanoi [Lozano's goby] ANE; Belgium; Zwin Belgium; Het Zwin natuurreservaat.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2691

A note on &lt;i&gt;Rhipilia nigrescens&lt;/i&gt; Coppejans &amp; Prud'homme van Reine (Chlorophyta)
Provedor de dados: 27
Autores: Coppejans, E.; Prud'homme van Reine, W.F.
In our paper on seaweeds of the Snellius-II expedition (Coppejans &amp; Prud'homme van Reine, 1989) we suggested that the new species &lt;i&gt;Rhipilia nigrescens&lt;/i&gt; had been described in Phycologia. Due to regulations of that journal and corroborated by the short spell between acceptance and publication in Blumea, the Latin description can no longer be expected to be published as suggested. To validate the name of the new species a Latin description of the holotype is published here.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhipilia nigrescens.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3055

Notion de modèles mathématiques
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Ronday, F.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266928.pdf

Circadiel patterns in the tidal plankton of a sandy beach in Zeebrugge (Belgium)
Provedor de dados: 27
Autores: Lock, K.; Beyst, B.; Mees, J.
The intertidal fauna of a Belgian sandy beach was sampled on an hourly basis with a hand-pushed sledge to study circadiel patterns in species composition. Four assemblages could be distinguished with classification and ordination techniques. A first division separated the samples taken during daytime from the night samples. Both assemblages were subsequently divided into an ebbtide and a floodtide situation. Light intensity and tidal height were the most important variables explaining the variation in the Canonical Correspondence Analysis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Brugge; Zeebrugge.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/233876.pdf

Bijdrage tot de studie van de extraheerbare stikstofverbindingen in doornhaai (&lt;i&gt;Squalus acanthias&lt;/i&gt; L.) en de evolutie ervan tijdens het bewaren in ijs
Provedor de dados: 27
Autores: Vyncke, W.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/226570.pdf

Diversity of nematode assemblages along a Mediterranean deep-sea transect
Provedor de dados: 27
Autores: Soetaert, K.; Heip, C.H.R.; Vincx, M.
The diversity of the nematode assemblages along a Mediterranean transect off Calvi, Corsica, Mediterranean Sea (depth range 160 to 1220 m) was very high. There was no clear trend in species diversity with station depth, and diversity at the station located on the continental shelf was not markedly lower than that at the deep-sea stations. However, diversity decreased with increasing depth into the sediment. As with the macrofauna, nematode assemblages in the Mediterranean is explained by a slight dominance of some species, while no species are dominant in the Bay of Biscay. Generic (between-genus) diversity was much higher than the average species diversity within genera, indicating that the high overall species diversity was not caused by large numbers of...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2892

Meiobenthic distribution and nematode community structure in five European estuaries
Provedor de dados: 27
Autores: Soetaert, K.; Vincx, M.; Wittoeck, J.; Tulkens, M.
Meiofauna from the intertidal zone of five European estuaries (Ems, Westerschelde, Somme, Gironde, Tagus) was investigated. Samples represented a cross section of various benthic habitats from near-freshwater to marine, from pure silts to fine-sandy bottoms. The meiobenthic community comprised everywhere a fauna strongly dominated by nematodes, with meiobenthic density increasing with increasing salinity. The Ems differed from the other estuaries due to the presence of a well developed community of Copepods, Gastrotrichs, large Ciliates and/or soft-shelled Foraminiferans in some sites. The Westerschelde stood out due to the near-absence of harpacticoid copepods and, as in the Tagus, the lower meiobenthic densities in the marine part of the estuary. For...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuaries Intertidal environment Marine invertebrates Meiobenthos Population density Species diversity Copepoda [copepods] Gastrotricha Nematoda [Nematodes] Polychaeta [Bristle worms] ANE; Ems Estuary ANE; France; Gironde Estuary ANE; France; Picardie; Somme Estuary ANE; Netherlands; Westerschelde Portugal; Tagus R.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8456

The use of &lt;i&gt;Artemia&lt;/i&gt; nauplii for toxicity test: a critical analysis
Provedor de dados: 27
Autores: Sorgeloos, P.; Remiche-Van der Wielen, C.; Persoone, G.
Because of their easy hatching from dry cysts and their year-round availability, nauplii of the brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; salina&lt;/i&gt; are most convenient test organisms for toxicity studies. The bioassays mentioned in literature have, however, mostly been carried out with larvae of which neither the exact instar stage nor the geographical origin is known. The incubation of the cysts should always be carried out under strictly controlled temperature conditions since both the onset of hatching and the length of the hatching period are temperature-dependent. Moreover, the experiments should only be carried out with populations of nauplii of the same stage of development since it is demonstrated that the second and third instars are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nauplii; Toxicity tests; Artemia.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3588

The use of the McLaren Model for the determination of residual transport directions on the Gootebank, Southern North Sea
Provedor de dados: 27
Autores: Lanckneus, J.; De Moor, G.; Van Lancker, V.R.M.; De Schaepmeester, G.
Sixty samples were collected on the Gootebank to assess the application of the McLaren sediment transport model on a tidal sandbank environment. Residual sediment transport directions were deduced and compared with the results of a detailed bedform analysis obtained by side-scan sonar recordings. Results show that when sediments become finer and better sorted, the corresponding skewness becomes more positive which is in contradiction with the sediment transfer function of McLaren and Bowles (1985). Comparison of the directions of residual sediment transport deduced from bedform analysis and from the sediment trend analysis shows that a good similarity is reached in the adjacent swales and that an offset of 90° exists on the bank. The transversal grain-size...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2715

Swimming behaviour patterns in certain benthic harpacticoids (Copepoda)
Provedor de dados: 27
Autores: Hauspie, R.; Polk, Ph.
During an investigation on the fouling of artificial substrata in a brackish-water biotope at Oostende (=Ostend), Belgium, it was found that some harpacticoid species, until now considered benthic, become pelagic at certain times. Also, we observed that these harpacticoids were swimming during certain periods and then were found in the plankton. Some observations about this phenomenon are discussed in this paper.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Swimming Copepoda [copepods] ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3476

De Spuikom te Oostende: bijdrage van het Laboratorium voor Analytische Scheikunde van het Farmaceutisch Instituut der VUB
Provedor de dados: 27
Autores: Cuyckens, E.; Goegebeur, J.; Van Den Winkel, P.; Massart, D.L.
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7665

Etudes hydrobiologiques sur les eaux saumâtres de Belgique: IX. Quatre espèces de protistes, nouvelles pour la côte belge: &lt;i&gt;Pyramimonas octociliata&lt;/i&gt; Carter N., 1937, &lt;i&gt;Rhizochloris arachnoïdes &lt;/i&gt; Carter N., 1937, &lt;i&gt;Dinophysis arctica&lt;/i&gt; Mereschowsky C., 1879, &lt;i&gt;Dactylosphaerium radiosum&lt;/i&gt; (Ehrenberg C.G.) Blochmann F., 1886
Provedor de dados: 27
Autores: Van Meel, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende Harbour.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/238579.pdf

The toxicity of paired metal mixtures to the nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt; (Bastian, 1865)
Provedor de dados: 27
Autores: Vranken, G.; Tiré, C.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7066

Zooplanktonrespiratie van de Spuikom
Provedor de dados: 27
Autores: Vos, J.; Decleir, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9956

Endokrinologische aspekten van de regulatie van de vitellogenese bij het pekelkreeftje, &lt;i&gt;Artemia&lt;/i&gt; sp. (Crustacea; Anostraca) = Endocrinological aspects of vitellogenesis in the brine shrimp, &lt;i&gt;Artemia&lt;/i&gt; sp. (Crustacea; Anostraca)
Provedor de dados: 27
Autores: Van Beek, E.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/226589.pdf

Density and diversity of meiobenthic copepods: the oscillatory behaviour of population and community parameters
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6995

Probiotic bacteria as biological control agents in aquaculture
Provedor de dados: 27
Autores: Verschuere, L.; Rombaut, G.; Sorgeloos, P.; Verstraete, W.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5719

Automation in stock-culture maintenance and juvenile separation of the mysid &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (Molenonck)
Provedor de dados: 27
Autores: Léger, P.; Sorgeloos, P.
A batch system with subgravel filter for stock-culture maintenance of &lt;i&gt;Mysidopsis bahia&lt;/i&gt; in artificial sea water is described. The feeding of mysids on &lt;i&gt;Artemia&lt;/i&gt; is optimized through the cyclic pumping of brine shrimp instar I nauplii from a refrigerator to the stock-cultures. An easily constructed incubator-separator apparatus is described for the standardized harvesting of mysid juveniles to be used as test organisms.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Automation; Crustacean culture; Mysidopsis bahia.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3419

Availability of reference &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Sorgeloos, P.
Biometrical, biochemical and food-value characteristics of &lt;i&gt;Artemia&lt;/i&gt; nauplii vary with the source of the cyst material. In order to facilitate intercalibration and/or comparison of research conducted with cysts from different sources, homogenous cyst material can now be obtained from the &lt;i&gt;Artemia&lt;/i&gt; Reference Center (State University of Ghent, J. Plateaustraat 22, B-9000 Ghent, Belgium). The reference cysts have been tested extensively for hatching characteristics, biometrics, fatty-acid content, pesticide contamination and effectiveness as larval food for various crustaceans and fishes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3694

Nematode communities from the North Sea: environmental controls on species diversity and vertical distribution within the sediment
Provedor de dados: 27
Autores: Steyaert, M.; Garner, N.; Van Gansbeke, D.; Vincx, M.
Nematode assemblages were sampled seasonally at three subtidal stations along the Belgian coast. The stations were characterized by muddy sediments (station 115), fine sand (station 702) and fine to coarse sand (station 790). The forces structuring vertical distribution were investigated by evaluating abundance, species composition, diversity and trophic composition, and relating these to sediment composition, redox state and food sources. The nematode assemblages at the two finer grained stations (115, 702) were dominated by &lt;i&gt;Daptonema tenuispiculum&lt;/i&gt; and &lt;i&gt;Sabatieria punctata&lt;/i&gt;. For both species, the vertical distribution in the sediment seemed not dependent on the redoxchemistry, as former believed for &lt;i&gt;S....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition Environmental factors Marine invertebrates Population density Species diversity Vertical distribution Zoobenthos Nematoda [Nematodes] ANE; Belgium ANE; North Sea.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4035

A 4-years' analysis of the meiofauna community of a dumping site for TiO&lt;sub&gt;2&lt;/sub&gt;-waste off the Dutch coast
Provedor de dados: 27
Autores: Smol, N.; Huys, R.; Vincx, M.
Sublittoral meiofauna of 24 stations was monitored over 4 years (1984-1987) in and around a dumping site for TiO&lt;sup&gt;2-&lt;/sup&gt; acid waste in the Southern Bight of the North Sea off the Dutch coast. The meiofauna was examined quantitatively and qualitatively with special reference to the nematode and the copepod community structure down to species level and to the trophic structure of the nematodes. Biological, sedimentological, geographical parameters and the concentration of several heavy metals were subject to multivariate statistical analysis and classification techniques to evaluate the impact of the TiO&lt;sup&gt;2-&lt;/sup&gt; dumping activities. The meiofauna is dominated by nematodes, copepods, gastrotrichs and turbellarians. There is a...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2890

The meiobenthos of the North Sea: preliminary results of the North Sea Benthos Survey
Provedor de dados: 27
Autores: Huys, R.; Heip, C.H.R.; Herman, P.M.J.; Soetaert, K.
Tipo: Info:eu-repo/semantics/book
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/221091.pdf

A re-evaluation of marine nematode productivity
Provedor de dados: 27
Autores: Vranken, G.; Herman, P.M.J.; Vincx, M.; Heip, C.H.R.
Nematodes are the most abundant multicellular animals in marine sediments but their role in the benthos has not been properly quantified yet. In nearly all energy-flow budgets of marine systems their annual production P is given as about nine times their biomass B and their part in the total energy-flow is consequently estimated as anywhere between 3 and 30% of the total (carbon) input in the benthic system. Our laboratory experiments demonstrate that nematode productivity is much higher than P/B ~ 9 per year and may reach values of over 60 for bacterial grazers. To obtain more reliable estimates for field populations we propose a regression equation relating egg-to-egg development time T&lt;sub&gt;min&lt;/sub&gt; to temperature (t) and adult female weight...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological production; Mathematical models; Meiobenthos; Nematoda [Nematodes].
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3576

Production of &lt;i&gt;Artemia&lt;/i&gt; in culture tanks
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2878

Bijdrage tot de kennis der mariene fauna van de Belgische kust: 4. De bestrijding van de oesterplaag &lt;i&gt;Crepidula fornicata&lt;/i&gt; L. in de Spuikom te Oostende
Provedor de dados: 27
Autores: Polk, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Introduced species Oyster culture Pest control Crepidula fornicata (Linnaeus; 1758) ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1962
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7927

Projekt Zee eindverslag: 8. Trofische ketens en cyclus der nutriënten = Projet Mer rapport final: 8. Chaines trophiques et cycles des nutrients
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Polk, Ph.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/239087.pdf

Grain size trends associated with net sediment transport patterns: an example from the Belgian continental shelf
Provedor de dados: 27
Autores: Gao, S.; Collins, M.B.; Lanckneus, J.; De Moor, G.; Van Lancker, V.R.M.
Grain size trends in relation to net sediment transport pathways are examined, using some commonly-used grain size parameters. The results of the trend analysis (for 15 types of the trends) are compared with a known  net sediment transport pathways established on the basis of the sandbank hydro- and sediment-dynamics (i.e. general water and sediment movement patterns and bedform asymmetry). It is shown that: (1) the results for grain size trends associated with "a worsening in sorting along the transport pathways" have little similarity to transport pathways; (2) the results for grain size trends associated with "an improvement in sorting along the transport pathways" have relatively high degree of similarity to the identified pathways; and (3) the...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2580

Influence of purified soybean phospholipids on early development of common carp
Provedor de dados: 27
Autores: Geurden, I.; Charlton, M.N.; Marion, D.; Bergot, P.
The influence of dietary phospholipid (PL) composition on early development was tested in a 25 day feeding trial with first-feeding common carp (&lt;i&gt;Cyprinus carpio&lt;/i&gt;) larvae. A phosphatidylcholine (PC) fraction (PL: 94%, PC: 83%, PI: 1%) and a phosphatidylinositol (PI) fraction (PL: 100%, PC: 3%, PI: 64%) were prepared from soybean lecithin and added (2% on diet dry weight) to a casein-dextrin basal diet. Another diet was supplemented with 2% hen egg yolk PL (PL: 97%, PC: 68%, PI: 0%). A PL-deficient diet contained only peanut oil as lipid source and another one was supplemented with inositol. Final larval morphology was examined by an automatic image analysis system. The three PL fractions markedly improved growth in comparison with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological development Complex lipids Cyprinus carpio Linnaeus; 1758.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2950

Experimental alteration of the &lt;i&gt;Nautilus&lt;/i&gt; shell by factors involved in diagenesis and metamorphism. Part I. Thermal changes in conchiolin matrix of mother-of-pearl
Provedor de dados: 27
Autores: Grégoire, Ch.
1. This paper is an electron microscope study of the alterations produced by temperatures in range of 100°C to 900°C in mother-of-pearl of the modern &lt;i&gt;Nautilus&lt;/i&gt; shell. 2. Fragments of nacreous layers of the shell wall in the living chamber were exposed for 5 minutes to 21 days to dry heat in open vessels and in quartz tubes sealed under vacuum or argon. Other fragments were boiled in sea mud and sea water. 3. In open vessels and in sealed tubes, conversion of aragonite into calcite took place in the samples heated at 400 °C and above. In the 600 °C-900 °C samples, calcite was mixed with varying amounts of calcium oxide. With elevation of temperature, the original hard, compact and stratified mother-of-pearl became progressively brittle,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diagenesis; Metamorphism; Nacre; Nautilus.
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/294745.pdf

New names introduced by M. Connolly and by H.B. Preston in the Mollusca
Provedor de dados: 27
Autores: Adam, W.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Mollusca [Molluscs].
Ano: 1971
URL: http://www.vliz.be/imisdocs/publications/294769.pdf

The effect of dietary phosphatidylcholine in postlarval penaeid shrimp: 2. Preliminary culture results
Provedor de dados: 27
Autores: Tackaert, W.; Camara, M.R.; Sorgeloos, P.
Although dietary phospholipids (PL) and particularly phosphatidylcholine (PC) have been found to enhance growth and survival in penaeid shrimp, precise requirements have yet to be established. Substantially variable responses of feeding PL have been noticed in crustaceans in relation to the growth stage of the animals and the composition of the other dietary ingredients. In several shrimp feeding trials phospholipids of unspecified composition, have been used, such as crude lecithin, as a result of which it is difficult to draw conclusions with regard to the optimal levels/types of dietary PL required by penaeid shrimp. This paper is part of a broad study which aims to assess the dietary effect of different levels/types of purified PL in marine fish and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus japonicus [Kuruma shrimp].
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2901

On the unusual patterns of phosphate vertical distribution in the Tamar estuary
Provedor de dados: 27
Autores: Mommaerts, J.-P.
Chemical investigations in the Tamar estuary (Plymouth, Great Britain) have revealed marked variations of phosphate content in the water column. This pattern was usually not matched by that of salinity. The origin of the phenomenon and its possible use for the computation of the flushing time of the estuary are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phosphates Vertical distribution ANE; British Isles; England; Tamar Estuary.
Ano: 1970
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3447

An appreciation of the contribution of Arthur Humes to copepod systematics
Provedor de dados: 27
Autores: Huys, R.; Boxshall, G.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6452

Osmotic stress resistance as a quality diagnostic for penaeid postlarvae
Provedor de dados: 27
Autores: Rees, J.F.; Curé, K.; Piyatiratitivorakul, S.; Menasveta, P.; Sorgeloos, P.
&lt;i&gt;Penaeus monodon&lt;/i&gt; postlarvae (PL-5) were reared for 10 days on &lt;i&gt;Artemia nauplii&lt;/i&gt; enriched with various levels (2.65, 5.30, 12.60, 22.35 and 31.20 mg/g DW) of (n-3) highly unsaturated fatty acids (HUFA). On day 5 and 10, their resistance to osmotic shocks (transfer from 30 ppt to 0, 5, and 10 ppt diluted seawater) was analyzed. After 5 days, postlarvae fed &lt;i&gt;Artemia&lt;/i&gt; containing 12.6 mg/g (n-3)HUFA or more had a significantly higher resistance (p&lt;0.05) than controls. Five days later, no significant difference could be detected among the treatments. A positive correlation was found between the stress resistance of PL-10 and the survival recorded five days later in each tank (p&lt;0.02). It is concluded that...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2595

The culturing of some harpacticoid copepods from brackish water
Provedor de dados: 27
Autores: Smol, N.; Heip, C.H.R.
A culture method for three copepods from a brackish water pond in northern Belgium was established. The investigated species reproduced best on a diet of algae (&lt;i&gt;Tetraselmis suecica&lt;/i&gt; and &lt;i&gt;Phaeodactylum tricornutum&lt;/i&gt;) with addition of small amount of detritus from the habitat. Survival from nauplii to the adult stage varied between 60 and 90 %. A study of the influence of temperature showed that the duration of the naupliar stages of &lt;i&gt;Tachidius discipes&lt;/i&gt; is relatively prolonged with increasing temperature.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuarine organisms; Copepoda [copepods].
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3497

Distribution and abundance of shallow water hyperbenthic mysids (Crustacea, Mysidacea), and euphausiids (Crustacea, Euphausiacea), in the Voordelta and the Westerschelde, southwest Netherlands
Provedor de dados: 27
Autores: Mees, J.; Cattrijsse, A.; Hamerlynck, O.
The hyperbenthic mysids and euphausiids of the subtidal shallow coastal waters (the Voordelta) and the Westerschelde estuary in the Delta area (SW Netherlands) were regularly sampled between 1988 and 1991. Two salt marshes in the brackish part of the estuary were studied in the same period. Eight mysid species and one euphausiid species were identified. The spatial and seasonal distribution patterns of all species are described. The most abundant species in the coastal area is &lt;i&gt;Schistomysis spiritus&lt;/i&gt;, followed by &lt;i&gt;Mesopodopsis slabberi, Schistomysis kervillei&lt;/i&gt;, and &lt;i&gt;Gastrosaccus spinifer&lt;/i&gt;. In the marine part of the Westerschelde the same four species are dominant but densities are generally higher in the...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/316194.pdf

Subtidal understorey algal community structure in kelp beds around the Cape Peninsula (Western Cape, South Africa)
Provedor de dados: 27
Autores: Leliaert, F.; Anderson, R. J.; Bolton, J. J.; Coppejans, E.
The subtidal understorey seaweed communities were studied along a coastal distance of 104 km around the Cape Peninsula, which is situated in an overlap region between two marine provinces and characterized by a considerable temperature gradient. Sampling was carried out at six sites (4 to 10 quadrats per site) around the Cape Peninsula. For each of the quadrats, biomass of each species, grazing, and environmental variables such as temperature, wave exposure and sand cover were determined. The data were analysed using canonical correspondence analysis (CCA) and two way indicator species analysis (TWINSPAN). A total of 142 seaweed taxa were found at the six sites (21 Chlorophyta, 14 Phaeophyta and 107 Rhodophyta). The two sides of the Peninsula have a very...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists Community composition Environmental effects Grazing Kelps Seaweeds Temperature effects Wave forces Waves Waves Algae Chlorophyta [green algae] Phaeophyta Rhodophyta [red algae] PSW; South Africa; Cape Prov.; Cape Peninsula.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4596

A state of the art on meiofaunal respiration and production
Provedor de dados: 27
Autores: Moens, T.; Vincx, M.
The aerobic respiration of meiofauna in general and of nematodes in particular is studied by means of manometric (Cartesian or related divers) or electrode-based (polarographic electrodes) techniques. The former allow highly accurate measurements on individual or small batches of nematodes, while the latter, less sensitive technique allows rapid and highly reproducible measurements under a variety of abiotic conditions.Nematode respiration is commonly described in a power relation R = aW&lt;sup&gt;b&lt;/sup&gt;, where b averages 0.75 and a represents a measure of metabolic intensity. Published estimates of total nematode community respiration are scant, but seem to agree on an average value of 61...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological production; Meiobenthos; Respiration.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7318

Onderzoek van de abiotische en biotische evolutie van eenvoudige water-ekosystemen &lt;i&gt;in vitro&lt;/i&gt; (1973)
Provedor de dados: 27
Autores: Somers, D.; Jaspers, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8009

Belgian shrimp research in 1973
Provedor de dados: 27
Autores: De Clerck, R.; Redant, F.
In 1973 the commercial shrimp catches reached the very high level of 1615 tons. This represented the highest catch since 1956 and twice the landings of 1971 or 1972. The average engine-power of the vessels was 147.3 hp and the average catch per hour fishing was 23.6 kg. The catch curve shows the same pattern as the previous years, with a marked peak in October. This peak however was in 1973 (51 kg/ hour fishing) clearly much higher than in 1971 (33 kg/hour fishing) or in 1972 (30 kg/hour fishing). The experimental shrimp fishery was carried out by the &lt;i&gt;RV Hinders&lt;/i&gt;. On the fishing ground of the Westdiep five stations were monthly sampled with an otter trawl. The shrimp catches were divided into two length classes (smaller or larger than 54...
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3520

The implications of heterozygosity in the scallop &lt;i&gt;Placopecten magellanicus&lt;/i&gt; (Gmelin)
Provedor de dados: 27
Autores: Volckaert, F.A.M.J.
In many instances, variation in phenotypic traits has been correlated with electrophoretic heterozygosity of plants, vertebrates and invertebrates. Enhanced growth of selected heterozygous molluscs has been attributed to lower energetic requirements for basal metabolism. I investigated the correlation between single- and multiple-locus heterozygosity and phenotype of the juvenile scallop &lt;i&gt;Placopecten magellanicus&lt;/i&gt; (Gmelin). Two questions were being asked: do heterozygous scallops grow faster and which metabolic processes are affected by the degree of heterozygosity? No significant correlation was observed between genotype (scored at 6 polymorphic loci) and growth in six different samples of juvenile scallops, all belonging to the same time...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/226571.pdf

Observations ornithologiques réalisées dans le sud-est de la Mer du Nord, entre juin 1971 et janvier 1972: 2. Espèces non-marines
Provedor de dados: 27
Autores: Joiris, C.
During three pelagic cruises in the South-eastern part of the North Sea, the author spent a total of 82 hours (in 41 days) watching birds (Joiris, 1972). Sea bird watching involves only few birds, belonging to non-marine species. Nevertheless, it is a method which enables to point out periods of movement for given populations.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic birds Marine birds ANE; North Sea; Southern Bight.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3450

Large-scale microalgae production for nursery rearing of marine bivalves
Provedor de dados: 27
Autores: De Pauw, N.; Verboven, J.; Claus, C.
The feasibility of large-scale bloom induction of nutritionally suited natural phytoplankton species, to feed a semi-industrial nursery of edible shellfish, built on the Belgian coast, was tested. The outdoor microalgal production unit consisted of four tanks of 100 m² surface each (two of 1 m depth and two of 0.5 m depth), equipped with different mixing devices. The cultures were run as chemostats in which seawater was enriched with commercial inorganic N, P and Si fertilizers. Depending on the season, between 5-10 and 80% of the culture volume could be harvested daily, with algal densities ranging from 50,000 to 500,000 cells per ml. By manipulation of operational parameters such as detention time, nutrient levels and nutrient ratios (N: Si: P), unsuited...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal culture; Marine aquaculture; Mass culture; Mollusc culture; Rearing; Chaetoceros; Chlorella; Nitzchia; Phaeodactylum; Skeletonema.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3395

Holothuries nouvelles et peu connues récoltées en Indonésie au cours de la &lt;i&gt;Snellius-II&lt;/i&gt; Expedition
Provedor de dados: 27
Autores: Massin, C.
This paper deals with nine new holothurian species viz. &lt;i&gt;Duasmodactyla turriculacava, Cucumella indonesia, Psolus solidus, Holothuria (Acanthotrapeza) tripilata, Holothuria (Metriatyla) horrida, Allopatides corrugatus, Bathyherpystikes baculosus, Paroriza verrucosa, Laetmogone parvipedata,&lt;/i&gt; and three rare species viz. &lt;i&gt;Thyone anomala&lt;/i&gt; Oestergren, 1898, &lt;i&gt;Stolus papillatus&lt;/i&gt; (Sluiter, 1887), &lt;i&gt;Psolidum rugosum&lt;/i&gt; Koehler &amp; Vaney, 1905. These holothurians, collected during the Snellius-II Expedition, come from East Indonesia. Most of them were collected deeper than 100m. For each species, a description, a diagnosis, and a discussion on the relation with the nearest species are given.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/303527.pdf

Belgium and the Netherlands settle their last frontier disputes on land as well as at sea
Provedor de dados: 27
Autores: Franckx, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/277208.pdf

Comparison of the aerobic metabolism for four strains of &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Bernaerts, F.; Blust, R.; Van der Linden, A.; Thoeye, C.
The respiratory physiology in 35 pro mille artificial seawater has been studied for four strains of adult &lt;i&gt;Artemia&lt;/i&gt; . The scope of activity and the potential activity range were studied by measuring the respiratory rate of actively swimming and anaesthetized animals and the respiration of total homogenates. The experiments were carried out at temperatures ranging from 5 to 45°C. The lower lethal value for male and female &lt;i&gt;Artemia&lt;/i&gt; from the four strains (Great Salt Lake, Macau and Sfax) being 5°C. The higher lethal value for male &lt;i&gt;Artemia&lt;/i&gt; from Great Salt Lake, Macau and Sfax being 45°C, while male animals from San Francisco Bay only survive up to 35°C. Female &lt;i&gt;Artemia&lt;/i&gt; from the four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3161

Nouvelles installations maritimes du port d'Ostende
Provedor de dados: 27
Autores: Van der Schueren, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Historical account ANE; Belgium; Oostende Harbour ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1897
URL: http://www.vliz.be/imisdocs/publications/231777.pdf

Debate. Preliminary results of seismic reflection investigations and associated geophysical studies in the area of the Antarctic Peninsula; Discussion and Reply for the GRAPE Team
Provedor de dados: 27
Autores: Henriet, J.P.; Bialas, J.; Meissner, R.; Larter, R.D.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2791

Bioencapsulation of the antibacterial drugs in nauplii and adult brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Dixon, B.A.; Van Poucke, S.; Kawahigashi, D.; Chair, M.; Dehasque, M.; Nelis, H.J.; Sorgeloos, P.; De Leenheer, A.P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2562

Some morphological observations on the Neobradyidae Olofsson, 1917 (Copepoda, Harpacticoida) including the redescription of &lt;i&gt;Antarcticobradya tenuis&lt;/i&gt; (Brady, 1910) comb. nov.
Provedor de dados: 27
Autores: Huys, R.
&lt;i&gt;Neobrady pectinifera&lt;/i&gt; T. Scott, 1892 is thoroughly redescribed and figured. &lt;i&gt;Parastenhelia (?) tenuis&lt;/i&gt; Brady, 1910 collected during the "Deutsche Südpolar Expedition 1901-1903" and placed &lt;i&gt;species incerta sedis&lt;/i&gt; in the Parastenheliidae by Lang (1948) is also recognized as a Neobradyidae and assigned to a new genus &lt;i&gt;Antarcticobradya&lt;/i&gt; gen. nov. The Neobradyidae are considered remnants of a formerly widespread group and brief reference is made to the phylogenetic relationship of the family.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/266800.pdf

Effect of a dietary phospholipid supplementation on growth and fatty acid composition of European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt; L.) and turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.) juveniles from weaning onwards
Provedor de dados: 27
Autores: Geurden, I.; Coutteau, P.; Sorgeloos, P.
Two 40-day feeding trials using extruded diets were conducted to assess the effect of a dietary phospholipid (PL) supplementation on growth, survival and fatty acid composition of European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) and turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) from weaning onwards. Two dietary treatments (FO and PL) were tested; both had an identical extruded basis (92,5% total diet weight) coated with a different lipid fraction (7,5% total diet weight). Diet PL contained 2% egg yolk PL (69% pure). In diet FO the PL was replaced by hydrogenated coconut oil. The isolipidic diets contained an equal amount of fish oil ethyl esters providing 1,6% (% diet weight) of n-3 highly unsaturated fatty acids (HUFA). A diet water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Complex lipids Diets Fatty acids Juveniles Dicentrarchus labrax (Linnaeus; 1758) [Bass] Scophthalmus maximus (Linneaus; 1758).
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2951

Assessing organic matter mineralization, degradability and mixing rate in an ocean margin sediment (Northeast Atlantic) by diagenetic modeling
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Middelburg, J.J.; Heip, C.H.R.
We test whether organic matter degradability, mixing activity, and total sediment mineralization can be estimated by inversion of a coupled nonlinear numerical steady-state diagenetic model. We use a single data set comprising oxygen, nitrate, ammonium and organic carbon versus depth profiles from a slope station in the Goban Spur area (1034 m, Northeast Atlantic). Based on an extensive sensitivity analysis, it appears that (1) when using all data, the total mineralization rates can be determined with reasonable precision; bioturbation and degradability are less well constrained and (2) total mineralization rates can be determined based on nitrate and oxygen profiles only; estimates of organic matter mixing rates and degradability are refined when...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8426

Linking estuarine nematodes to their suspected food: a case study from the Westerschelde estuary (south-west Netherlands)
Provedor de dados: 27
Autores: Moens, T.; Van Gansbeke, D.; Vincx, M.
The present study investigates correlations between abundances of nematodes (at the genus level) and benthic microalgae on an intertidal mudflat in the Westerschelde Estuary (south-west Netherlands), using both multi- and univariate methods. Two sample series, covering surface areas of 10 cm(2) (meioscale) and 1.25 cm(2) (microscale) per sample were analysed. Trophic type analysis indicated that an average of 31% of the nematode community were candidate grazers of microalgae. Multivariate data analysis indicated that only a limited part of the variation in the nematode data could be explained in relation to pigments. Total nematodes did not show any correlation with the pigment data. On the meioscale, the genera &lt;i&gt;Tripyloides&lt;/i&gt; and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Marine nematodes; Meiobenthos; Populations; Populations; Scale; Scale; Bacteria.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7332

Vertical distribution of meiofauna in sediments from contrasting sites in the Adriatic Sea: clues to the role of abiotic versus biotic control
Provedor de dados: 27
Autores: Moodley, L.; Chen, G.; Heip, C.H.R.; Vincx, M.
The vertical profiles of dominant metazoan meiobenthic taxa were studied at four contrasting sites in the Adriatic Sea in relation to macrofaunal activity and oxygen penetration depth in the sediment. Vertical profiles of copepods were related to the oxygen penetration depth and showed peak densities in the upper cm or deeper in sediments with a broader oxic zone. In contrast, nematodes penetrated much deeper into the sediment and no direct relationship with oxygen penetration depth was evident. Nematode penetration depths were related to or reflected the differences in macrofaunal activity or mixing at the four sites which appears to be an important factor governing the subsurface activity of nematodes.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5895

Besmetting van de brakwatergrondel, &lt;i&gt;Pomatoschistus microps&lt;/i&gt;, met &lt;i&gt;Aphalloides coelomicola&lt;/i&gt; (Trematoda Digenea)
Provedor de dados: 27
Autores: Vaes, M.
During summer and autumn, large numbers of the Common Goby, &lt;i&gt;Pomatoschistus microps&lt;/i&gt;, occurred in the Dievengat, a shallow brackish water habitat in the North of Belgium. For a description of the habitat see Vaes (1977). Practically all fishes were infected with the trematode &lt;i&gt;Aphalloides coelomicola&lt;/i&gt;. The course of the infection was followed from July till October.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parasites Pomatoschistus microps (Kröyer; 1838) [Common goby] Trematoda [flukes].
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3579

A pump system to collect water samples in shallow water without disturbance
Provedor de dados: 27
Autores: Caljon, A.
An apparatus to take water and phytoplankton samples in shallow water is described. The most important advantages are: the facility to take undisturbed water samples from the bank, the practical size and easy construction.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pumps; Sampling techniques; Shallow water; Water sampling.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3582

On the need for independently estimating organic tripton carbon content
Provedor de dados: 27
Autores: Pissierssens, P.; Bergmans, M.; Polk, Ph.
A method is described by which the contribution of Non-Living Particulate Organic Matter (NLPOM) to Total Organic Matter can be determined. The dye Trypan Blue stains only dead organic matter. The surface of the stained particles is used as an indirect measure of the NLPOM-carbon content. Applying this method, it is shown that the bivariate linear regression of POM on chlorophyll &lt;i&gt;a&lt;/i&gt; may produce serious errors in the calculated NLPOM contribution when carbon which is neither tripton- nor chlorophyll-related is present in appreciable quantities.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Analytical techniques; Carbon compounds; Organic matter; Staining.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3283

Navigating the future I: towards a Marine European Research Area
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/9122.pdf

Checklist of brachyuran crabs (Crustacea: Decapoda) from the eastern tropical Pacific
Provedor de dados: 27
Autores: Hendrickx, M.E.
Literature dealing with brachyuran crabs from the east Pacific is reviewed. Marine and brackish water species reported at least once in the Eastern Tropical Pacific zoogeographic subregion, which extends from Magdalena Bay, on the west coast of Baja California, Mexico, to Paita, in northern Peru, are listed and their distribution range along the Pacific coast of America is provided. Unpublished records, based on material kept in the author's collections were also considered to determine or confirm the presence of species, or to modify previously published distribution ranges within the study area. A total of 450 species, belonging to 181 genera, are included in the checklist, the first ever made available for the entire tropical zoogeographic subregion of...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/303561.pdf

The meiobenthos along a Mediterranean deep-sea transect off Calvi (Corsica) and in an adjacent canyon
Provedor de dados: 27
Autores: Soetaert, K.; Heip, C.H.R.; Vincx, M.
Meiobenthos densities (excluding hard-shelled Foraminiferans) were compared along a Mediterranean deep-sea transect off Calvi (Corsica) and in an adjacent canyon. Chloroplastic Pigment Equivalent values (CPE) provided an estimate of the amount of primary production reaching the bottom.The stations along the transect were characterized by a low CPE content of the sediment, decreasing with increasing station depth. CPE values in the canyon were much higher, which probably resulted from import of material from the adjacent bay of Calvi. Similarly, meiobenthos densities along the transect were much lower than at comparable depths along the canyon.Meiobenthos density was significantly and positively correlated with CPE values.Nematodes were the most abundant...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2893

Remarques sur les Polychètes Serpulidae antarctiques &lt;i&gt;Vermiliopsis notialis&lt;/i&gt;, Monro, 1930 et &lt;i&gt;Vermiliopsis glacialis&lt;/i&gt; Monro, 1930
Provedor de dados: 27
Autores: Zibrowius, H.
&lt;i&gt;Vermiliopsis glacialis&lt;/i&gt; (Polychaeta Serpulidae) is redescribed on samples of the Antarctic expedition of the &lt;i&gt;Belgica&lt;/i&gt; (1897-1899) and its affinities are discussed. This material had erroneously been determined by Fauvel (1936) as &lt;i&gt;Vermiliopsis notialis&lt;/i&gt;. The distribution of these two Antarctic species is summarized.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpulidae Vermiliopsis glacialis Vermiliopsis notialis PS; Antarctica.
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/294754.pdf

Outdoor mass production of marine microalgae for nursery culturing of bivalve molluscs
Provedor de dados: 27
Autores: De Pauw, N.; De Leenheer, L.
Nursery rearing of bivalve molluscs as the intermediate step between the controlled production of larvae in hatcheries and non-controlled growing-out in the wild, is a practice in modern shellfishery management which receives more and more attention. A major bottle-neck in the culturing process of the postlarval bivalves is, however, the production of large quantities of marine microalgae suitable as food for the growing spat. Experience was gained by the authors in small 1 m&lt;sup&gt;2&lt;/sup&gt; outdoor units with induced blooms of natural phytoplankton. The cultures were run either as a turbidostat or as a chemostat with discontinuous or continuous harvesting.Natural seawater (25-32°) was enriched with inorganic (commercial), or organic fertilizers...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dominant species Mass culture Mollusc culture Nursery ponds Nutrients (mineral) Yield Bivalvia ANE; Belgium; Oostende; Sluice Dock.
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/261165.pdf

&lt;i&gt;Paramesochra&lt;/i&gt; T. Scott, 1892 (Copepoda, Harpacticoida): a revised key, including a new species from the SW Dutch coast and some remarks on the phylogeny of the Paramesochridae
Provedor de dados: 27
Autores: Huys, R.
Paramesochra mielkei sp.n. is described and figured from the interstices of subtidal sandy sediments off the SW Dutch coast. Kunz' (1981) phylogenetic scheme of the Paramesochridae Lang, 1948 is re-examined and it is suggested that the family comprises two phyletic lines which originated early in paramesochrid evolution. Translation into Linnean hierarchies implies the establishment of two new sub-families. Within the primitive Diarthrodellinae subfam. n., Tisbisoma Bozic, 1964 is ancestral to Diarthrodella Klie, 1949 s.l. and Rossopsyllus Soyer, 1975. Remanea Klie, 1929 is transferred to the Paramesochrinae subfam. n. which comprises the genera of both the Scottopsyllus- and the Paramesochra-group. The aberrant genus Caligopsyllus Kunz, 1975, standing...
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7035

Protein digestion in juvenile turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) and effects of dietary administration of &lt;i&gt;Vibrio proteolyticus&lt;/i&gt;
Provedor de dados: 27
Autores: De Schrijver, R.; Ollevier, F.P.
The trial was made to study the protein digestion in juvenile turbot during passage of digesta from stomach to rectum. Moreover, diet supplementation with the potential probiotic bacteria, &lt;i&gt;Vibrio proteolyticus&lt;/i&gt;, was evaluated with regard to protein digestion. For a 3-week period, fish (25-30 g) were fed by oral intubation and received either a liquid mixture consisting of 40% nonpurified control diet and 60% water or this mixture supplemented with 10 &lt;sup&gt;10&lt;/sup&gt; viable &lt;i&gt;V. proteolyticus&lt;/i&gt; ml &lt;sup&gt;-1&lt;/sup&gt;. Daily dry matter was 1.5% body weight. As digesta progressed from the stomach to the foregut, hindgut and rectum, the increase in apparent nitrogen digestibility was accompanied by higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Diets; Digestibility; Digestion; Feeding experiments; Fish culture; Food conversion; Nitrogen; Probiotics; Probiotics; Proteins; Scophthalmus maximus; Stomach; Scophthalmus maximus; Vibrio proteolyticus.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9593

Ultrastructure of the proboscis in Cystiplanidae, (Plathelminthes, Kalyptorhynchia)
Provedor de dados: 27
Autores: De Vocht, A.J.-P.
The fine structure of the proboscis epithelia and musculature of the kalyptorhynchs &lt;i&gt;Cystiplex axi&lt;/i&gt; and &lt;i&gt;Cystiplana paradoxa&lt;/i&gt; is described. The epithelia are divided into one cellular and four syncytial belts. The former lines the distal part of the cavity and in both species contains a circular groove which has ciliary receptors with modified axonemata. Apart from this cellular belt, two syncytial belts and a part of the belt covering the basal part of the cone form the sheath epithelium. The first two belts of the sheath epithelium, characterised by infoldings of the basal plasma membrane, have intra-epithelial nuclei. The proximal belt lining the cavity is characterised by numerous piercing gland necks. The cone is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cystiplanidae.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3172

Interstitial fauna of Galapagos: Porrocystidinae (Plathelminthes Polycystididae)
Provedor de dados: 27
Autores: Artois, T.J.; Schockaert, E.R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New taxa Phylogeny Polycystididae Porrocystidinae ISE; Ecuador; Galapagos I.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/238783.pdf

Draconematidae (Nematoda, Desmodoroidea) from the Coast of Kenya, East Africa
Provedor de dados: 27
Autores: Verschelde, D.; Vincx, M.
Six species of the family Draconematidae from the intertidal zone of the beaches of Gazi and Malindi, Kenya, are described or provided with additional information. &lt;i&gt;Dracognomus annae&lt;/i&gt; sp. n. is characterised by its round rostrum, and by the shape of the male spicules; &lt;i&gt;Dracognomus dermatoglyphus&lt;/i&gt; sp. n. is characterized by its indented rostrum, the fingerprint-like pattern of the annules at the mid-body region, and males by their spicules with hook-shaped capitulum; &lt;i&gt;Dracograllus gilbertae&lt;/i&gt; sp. n. is characterized by its large fovea amphidialis, its slender posterior adhesion tubes, and a ventral postcloacal swelling at the base of the tail. Only one female and one juvenile was found of a...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/243875.pdf

Protozoa as test organisms in marine ecotoxicology: luxury or necessity?
Provedor de dados: 27
Autores: Dive, D.; Persoone, G.
A critical examination of the utility of protozoan bioassays in marine as well as in freshwater ecotoxicology implies the answer to three basic questions: why, how and when. Arguments in favor of tests with Protozoa are: protozoans combine all biological mechanisms and functions in one single cell; the physiology and biochemistry of several species has been studied extensively; the generation time of Protozoa is very short in comparison to Metazoa; large numbers of organisms can be produced in a small volume; induction of cryptobiotic stages is possible with some species; Protozoa play a significant role in aquatic ecosystems; test methodologies with very sensitive criteria can be worked out. The two basic approaches for bioassay are &lt;i&gt;in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecotoxicology; Test organisms; Protozoa.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3264

Présence de &lt;i&gt;Choristocarpus tenellus&lt;/i&gt; (Kuetzing) Zanardini à Port-Cros
Provedor de dados: 27
Autores: Coppejans, E.; Boudouresque, C.F.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3565

Observed and predicted vertical suspended sediment concentration profiles and bedforms in oscillatory-only flow
Provedor de dados: 27
Autores: Williams, J.J.; Bell, P.S.; Thorne, P.D.; Trouw, K.; Hardcastle, P.J.; Humphrey, J.D.
Measurements of hydrodynamic conditions and vertical suspended sediment concentration profiles, C-profiles, have been obtained above rippled sandy beds in a large wave flume. Measured values of wave height and period, water depth and sediment properties are used in well-known formulae to predict sediment dynamics and bed shear stresses due to waves. These data are then used in an existing convective model and a new model to predict C-profiles. Measured C-profiles and C-profiles predicted by the new model are shown to agree well for a range of grain sizes and wave conditions. Grain-scale bed roughness, defined using data from the model, is found to vary with the wave mobility number. Values for the wave mixing coefficient derived using the new model are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthic boundary layer; Flow; Flow; Flow; Model studies; Oscillatory flow; Resuspended sediments; Sand; Sediment dynamics; Vertical profiles; Waves; Waves.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7388

Moulting-hormone activity in adult &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Van Beek, E.; Criel, G.R.J.; Walgraeve, H.; De Loof, A.
The &lt;i&gt;Artemia&lt;/i&gt; strain from Great Salt Lake (GSL 375) was used. Total body extracts and hemolymph of &lt;i&gt;Artemia&lt;/i&gt; were purified by solvent partition and column chromatography. Moulting-hormone concentrations were then determined by a specific radioimmunoassay (RIA). Results are expressed in ng ecdysteroid activity/g fresh weight (or per ml). Initially, the RIA data on extracts of adults were highly variable. The use of a more accurate sampling technique based on the reproductive cycle of the females allowed to determine a hormone activity pattern.In females, moulting cycles alternate with vitellogenic cycles. The lowest values of ecdysone (3-6 ng ecdysone equivalents/g fresh body weight or ml hemolymph) occur during...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hormones; Moulting; Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3209

Ecosysteemvisie voor de Vlaamse Kust: 1. Ecosysteembeschrijving
Provedor de dados: 27
Autores: Provoost, S.; Hoffmann, M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Ecosystem management Ecosystems ANE; Belgium; Belgian Coast.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/236007.pdf

Single particle analysis of aerosols, observed in the marine boundary layer during the Monterey Area Ship Tracks Experiment (MAST), with respect to cloud droplet formation
Provedor de dados: 27
Autores: De Bock, L.A.; Joos, P.E.; Noone, K.J.; Pockalny, R.A.; Van Grieken, R.E.
The chemical composition of individual particles &gt;0.2 µm sampled during the MAST-experiment were analysed by SEM-EDX, in combination with multivariate techniques. The objective of this experiment was to identify the mechanisms responsible for the modification of marine stratocumulus clouds by emissions from ships and in a wider sense to provide information on the global processes involved in atmospheric modification of cloud albedo. Aerosols were examined under different MBL pollution levels (clean, intermediately polluted and moderately polluted) in five different reservoirs: background below-cloud and above-cloud aerosol; background cloud droplet residual particles; below-cloud ship plume aerosol and ship track cloud droplet residual particles. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols; Albedo; Atmospheric boundary layer; Atmospheric particulates; Chemical composition; Clouds; Droplets; Pollution effects; INE.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8877

Heavy metal contamination in sediments from the Belgian coast and Scheldt estuary
Provedor de dados: 27
Autores: Araújo, M.F.D.; Bernard, P.C.; Van Grieken, R.E.
Sixty-two samples of total sediments and the separated clay/silt fractions were analysed by the energy-dispersive X-ray fluorescence spectrometry to evaluate the pollution level and the trends in samples collected along the Belgian coast over a period of 6 yr and at four stations located in the Scheldt estuary where two of these were sampled periodically for 4 yr. Three correction methods for grain size effects were applied, either to the bulk sediment samples or to the clay/silt size fractions, and the results were compared. Local variations on the concentrations in some of the elements determined were used to establish whether they result from an anthropogenic or natural origin. The level of pollution was assessed as a function of the location, sampling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals Marine pollution Pollution monitoring Sediment pollution Sediments ANE; Belgium Belgium; Zeeschelde.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3235

Application of AFLP for taxonomic and epidemiological studies of &lt;i&gt;Photobacterium damselae&lt;/i&gt; subsp. &lt;i&gt;piscicida&lt;/i&gt;
Provedor de dados: 27
Autores: Thyssen, A.; Van Eygen, S.; Hauben, L.; Goris, J.; Swings, J.; Ollevier, F.P.
A collection of 106 &lt;i&gt;Photobacterium damselae&lt;/i&gt; subsp. &lt;i&gt;piscicida&lt;/i&gt; strains and 19 &lt;i&gt;Photobacterium damselae&lt;/i&gt; subsp. &lt;i&gt;damselae&lt;/i&gt; strains, including reference and type strains, were genetically characterized using AFLP. The total genomic DNA of each bacterial strain was digested using restriction endonucleases &lt;i&gt;Hind&lt;/i&gt;III and &lt;i&gt;Taq&lt;/i&gt;I. Using numerical analysis, six clusters were recognized. The largest cluster (n=106) contained the majority of the strains tested and consisted exclusively of &lt;i&gt;Photobacterium damselae&lt;/i&gt; subsp. &lt;i&gt;piscicida&lt;/i&gt;. The &lt;i&gt;Photobacterium damselae&lt;/i&gt; subsp. &lt;i&gt;damselae&lt;/i&gt; strains fell...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epidemiology; Taxonomy.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9527

Growth response of penaeid postlarvae to dry diets containing &lt;i&gt;Artemia&lt;/i&gt; biomass meal
Provedor de dados: 27
Autores: Abelin, P.; Tackaert, W.; Sorgeloos, P.
The results are presented of a feeding experiment conducted with post-larvae of &lt;i&gt;Penaeus monodon&lt;/i&gt; and &lt;i&gt;P. vannamei&lt;/i&gt; using formulated dry feeds in which &lt;i&gt;Artemia&lt;/i&gt; biomass was incorporated. The total and partial substitution for Artemia nauplii were evaluated. Survival rates in the experiment were not very high, indicating that nutritionally balance dry diets do not support the same growth as Artemia nauplii, which must contain a particular ingredient yet to be identified
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Comparative studies; Diets; Food organisms; Nauplii; Shrimp culture; Artemia; Penaeus monodon [giant tiger prawn].
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2799

Three new &lt;i&gt;Chromadoropsis&lt;/i&gt; species (Nematoda, Desmodoridae) from Southern Africa and the North Sea
Provedor de dados: 27
Autores: Furstenberg, J.P.; Vincx, M.
Three new &lt;i&gt;Chromadoropsis&lt;/i&gt; species with four pharyngeal bulbi are descriptionbed from Southern Africa, Namibia (S.W.A.) and the North Sea. &lt;i&gt;C. granulosus&lt;/i&gt; sp.nov. is described from a sandy beach near Port Elizabeth. This species is characterized by a very distinct layer of yellow granules just below the cuticle. &lt;i&gt;C. namibiensis&lt;/i&gt; sp.nov. is described from a sandy beach at Langstrand, Namibia. This species can be distinguished by the length and shape of the gubernaculum and spicules as well as the size of the capitulum. &lt;i&gt;C. longispiculosa&lt;/i&gt; sp.nov. is described from the North Sea and is characterized by the long spicules and the presence of numerous porids. The genus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematodes Chromadoropsis Chromadoropsis granulosus Chromadoropsis longispiculosa Chromadoropsis namibiensis ANE; North Sea Namibia South Africa.
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/276169.pdf

Vergelijkende studie van diverse geografische rassen van het pekelkreeftje, &lt;i&gt;Artemia&lt;/i&gt; , ter verbetering van zijn gebruik in de aquakultuur
Provedor de dados: 27
Autores: Vanhaecke, P.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/226585.pdf

Marine nematodes as indicators in ecological monitoring and bio-assays
Provedor de dados: 27
Autores: Vincx, M.; Vranken, G.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/276757.pdf

Reflection seismic investigations in the Weddell Sea and along the Antarctic peninsula
Provedor de dados: 27
Autores: Henriet, J.-P.; Miller, H.; Meissner, R.; Moons, A.; Huws, D.; Jokat, W.; Kaul, N.; Van Heuverswyn, E.; Versteeg, W.
Within the framework of the first phase of the Belgian Antarctic Research Programme (1986-1988), the Renard Centre of Marine Geology (RCMG) at the State University of Ghent has participated in two cruises organized by the Alfred-Wegener-lnstitut fur Polar- und Meeresforschung (Bremerhaven). Both cruises addressed different marine geological domains: the passive margin of the eastern Weddell Sea (cruise Antarktis V/ 4) and the active western margin of the Antarctic Peninsula (cruise Antarktis VI/2). In the Weddell Sea some 2650 km of high-resolution reflection seismic profiles have been shot, partly in connection with the drilling operations of ODP Leg 113 off Cape Norvegia. This site has been used as a stratotype for an integrated seismic-stratigraphic...
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8925

Milieu en plankton in de Westerschelde
Provedor de dados: 27
Autores: De Pauw, N.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuaries Plankton ANE; Netherlands; Westerschelde.
Ano: 1971
URL: http://www.vliz.be/imisdocs/publications/261741.pdf

Increasing cyst yields in &lt;i&gt;Artemia&lt;/i&gt; culture ponds in Vietnam: the multicycle system
Provedor de dados: 27
Autores: Baert, P.; Anh, N.T.N.; Quynh, V.D.; Hoa, N.V.; Sorgeloos, P.
In this study, one-cycle and multi-cycle culture systems for &lt;i&gt;Artemia&lt;/i&gt; in seasonal salt ponds are compared. In one-cycle systems, &lt;i&gt;Artemia&lt;/i&gt; is inoculated only once per season, while in multi-cycle systems ponds are drained and re-stocked several times per season. In Vietnam, three-cycle systems gave significantly higher cyst yields than did the one-cycle system. However, after two cycles, systems were not significantly different. Food limitation probably caused the steady decline in cyst yields, as observed in the one-cycle ponds. In these ponds, females have smaller broods (from the second cycle onwards) and during the last cycle the number of adult females is lower than in multi-cycle ponds.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Pond culture; Artemia.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2921

The metazoan meiobenthos along the continental slope of the Goban Spur (NE Atlantic)
Provedor de dados: 27
Autores: Vanaverbeke, J.; Soetaert, K.; Heip, C.H.R.; Vanreusel, A.
The metazoan meiobenthos along the continental slope of the Goban Spur (NE Atlantic) was studied in the framework of the OMEX-programme (EC-MAST II). Meiobenthic densities, the vertical distribution of the meiobenthos in the sediment, and the biomass and generic composition of the dominant group, the nematodes, were investigated at different water depths. The meiobenthic communities along the depth gradient of the continental slope followed the usual trends: the communities were dominated by nematodes, and meiobenthic densities, total nematode biomass, and mean individual nematode weight decreased with increasing water depth. The shelf station had significantly higher densities, nematode biomass and mean individual weight than the deeper stations. The...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5650

On organic remains in shells of Paleozoic and Mesozoic cephalopods (nautiloids and ammonoids)
Provedor de dados: 27
Autores: Grégoire, Ch.
Remnants of decalcified nacreous layers from Ordovician, Devonian, Carboneferous (including Pennsylvanian), Permian, Jurassic and Cretaceous, nautiloid and ammonoid shells, examined in the electron microscope, consists of various, biuret-positive structures, which reflect degrees in degradation of the original conchiolon sheets. Identification of these structures as altered nacreous concholin and discrimination from contaminating structures of foreign organisms, a frequent finding in fossil shells, were based on detection of similar structural modifications in the Recent &lt;i&gt;Nautilus&lt;/i&gt; shell, in well preserved shells of Pennsylvanian and Mesozoic cephalopods and in alterations produced artificially in experimental diagenesis of the Recent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fossils; Paleozoic; Cephalopoda.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289080.pdf

Recherches sur les Rotifières des eaux saumâtres: X. Les Rotifières planktoniques de Nieuport et environs
Provedor de dados: 27
Autores: De Ridder, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rotifera ANE; Belgium; Nieuwpoort.
Ano: 1963
URL: http://www.vliz.be/imisdocs/publications/290067.pdf

Live food mediated vitamin C transfer to &lt;i&gt;Dicentrarchus labrax&lt;/i&gt;and &lt;i&gt;Clarias gariepinus&lt;/i&gt;
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Dhert, Ph.; Pector, R.; Mai Soni, A.F.; Nelis, H.; Ollevier, F.P.; De Leenheer, A.P.; Sorgeloos, P.
Live food enrichment techniques, using formulated diets and emulsions for improving the nutritional quality of &lt;i&gt;Brachionus&lt;/i&gt; and &lt;i&gt;Artemia&lt;/i&gt; , were studied as a tool for transferring ascorbic acid (AA) to fish larvae. &lt;i&gt;Artemia&lt;/i&gt; nauplii enriched for 24h with an experimental emulsion containing 20% HUFA and 0%, 10% and 20% ascorbyl palmitate (AP) were administered to catfish larvae in a 20-day feeding trial. Survival was not affected by the dietary AA, but from day 7 onwards a significantly positive effect of supplemental AA on growth was demonstrated. At the end of the experiment the 20% AP group weighed 30% more than the control (0% AP), i.e. 9.5 and 6.3mg DW, respectively. Evaluation of the physiological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clarias gariepinus Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2581

The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment
Provedor de dados: 27
Autores: Vanhove, S.; Lee, H.J.; Beghyn, M.; Van Gansbeke, D.; Brockington, S.; Vincx, M.
The metazoan meiobenthos was investigated in an Antarctic coastal sediment (Factory Cove, Signy Island, Antarctica). The fine sands contained much higher abundances compared to major sublittoral sediments worldwide. Classified second after Narragansett Bay (North Atlantic) they reached numbers of 13x10&lt;sup&gt;6&lt;/sup&gt; ind m&lt;sup&gt;-2&lt;/sup&gt;. The meiofauna was highly abundant in the surface layers, but densities decreased sharply below 2cm. Vertical profiles mirrored steep gradients of microbiota, chloropigments and organic matter and were coincident with chemical stratification. Spatial patchiness manifested especially in the surface layer. Nematodes dominated (up to 90%), and &lt;i&gt;Aponema, Chromadorita, Diplolaimella, Daptonema,...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=323

&lt;i&gt;Namibnema papillata&lt;/i&gt; gen. et sp. n. and &lt;i&gt;Axonolaimus deconincki&lt;/i&gt; sp. n. (Nematoda, Axonolaimoidea) from marine and estuarine beaches of southern Africa
Provedor de dados: 27
Autores: Vincx, M.; Furstenberg, J.P.
&lt;i&gt;Namibnema papillata&lt;/i&gt; gen. et sp.n. is closely related to &lt;i&gt;Nicascolaimus punctatus&lt;/i&gt; Riemann, 1986. The presence of twelve stomatal rugae, the punctated cuticle and the shape of the pre-anal supplements indicate a relationship with species of the Chromadorina. &lt;i&gt;Axonolaimus deconincki&lt;/i&gt; sp.n. is characterized by the complex nature of the gubernaculum.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Namibnema papillata Nicascolaimus punctatus Africa; Southern Africa.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7102

An inexpensive automatic counter for cultures of aquatic organisms
Provedor de dados: 27
Autores: Van Outryve, E.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3530

Expéditions antarctiques belges 1959-1960. Bryozaires
Provedor de dados: 27
Autores: Redier, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryozoa PS; Antarctica.
Ano: 1965
URL: http://www.vliz.be/imisdocs/publications/294263.pdf

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supra-specific taxa of Chondrichthyan fishes. Part B: Batomorphii. 4a: Order Rajiformes - Suborder Myliobatoidei - Superfamily Dasyatoidea - Family Dasyatidae - Subfamily Dasyatinae - Genera: &lt;i&gt;Amphotistius, Dasyatis, Himantura, Pastinachus, Pteroplatytrygon, Taeniura, Urogymnus&lt;/i&gt; and &lt;i&gt;Urolophoides&lt;/i&gt; (incl. supraspecific taxa of uncertain status and validity), Superfamily Myliobatoidea - Family Gymnuridae - Genera: &lt;i&gt;Aetoplatea&lt;/i&gt; and &lt;i&gt;Gymnura&lt;/i&gt;, Superfamily Plesiobatoidea - Family Hexatrigonidae - Genus: &lt;i&gt;Hexatrygon&lt;/i&gt;
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.; Stehmann, M.
Part B of this series, comprising the Batomorphii is continued with taxa of the Myliobatoidei. The tooth morphology of representatives of eight genera (incl. supraspecific taxa of uncertain status and validity) of the family Dasyatidae, two of Gymnuridae and one of Hexatrygonidae is described and illustrated by SEM-photographs. A differential diagnosis for a final conclusions on myliobatoid odontology will be given in a forthcoming issue dealing with the last myliobatoid taxa.
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/294449.pdf

A case study of ship track formation in a polluted marine boundary layer
Provedor de dados: 27
Autores: Noone, K.J.; Johnson, D.W.; Taylor, J.P.; Ferek, R.J.; Garrett, T.; Hobbs, P.V.; Durkee, P.A.; Nielsen, K.; Öström, E.; O'Dowd, C.; Smith, M.H.; Russell, L.M.; Flagan, R.C.; Seinfeld, J.H.; De Bock, L.; Van Grieken, R.; Hudson, J.G.; Brooks, I.; Gasparovic, R.F.; Pockalny, R.A.
A case study of the effects of ship emissions on the microphysical, radiative, and chemical properties of polluted marine boundary layer clouds is presented. Two ship tracks are discussed in detail. &lt;i&gt;In situ&lt;/i&gt; measurements of cloud drop size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside-cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to remotely sensed measurements of cloud radiative properties. The authors examine the processes behind ship track formation in a polluted marine boundary layer as an example of the effects of anthropogenic particulate pollution on the albedo of marine stratiform clouds.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols; Air pollution; Albedo; Atmosphere; Atmosphere; Atmospheric boundary layer; Boundary layers; Cloud cover; Clouds; Man-induced effects; Marine environment; Marine pollution; Particulates; Remote sensing; Ships.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8839

Végétation marine de l'Ile de Port-Cros (Parc National): 11. Sur &lt;i&gt;Halodictyon mirabile&lt;/i&gt; Zanard. (Rhodophyceae)
Provedor de dados: 27
Autores: Coppejans, E.
The author makes a detailed study of &lt;i&gt;Halodictyon mirabile&lt;/i&gt; collected at Port-Cros (Var-France) and compares his observations with those of previous authors. He procures some new data about the procarp, cystocarp, spermatocystophore as well as data about the phenology and ecology of this alga, and concludes that &lt;i&gt;H. mirable&lt;/i&gt; is monoecious.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Halodictyon mirabile; France.
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3518

&lt;i&gt;Bathycamptus eckmani&lt;/i&gt; gen. et spec. nov. (Copepoda, Harpacticoida) with a review of the taxonomic status of certain other deepwater harpacticoids
Provedor de dados: 27
Autores: Huys, R.; Thistle, D.
Bathycamptus eckmani gen. et spec. nov., which is associated with mudballs produced by the. cirratulid Tharyx luticastellus, is described from bathyal muds in San Diego Trough, off California. ?Heteropsyllus minutus Wells from the Haden Ground, Scotland is considered to be its closest relative and is placed in the same genus. The genera Bathycamptus and Psammocamptus Mielke are regarded as sister groups on the basis of the shared sexual dimorphism shown by P3-P4. Relationships with other marine Canthocamptidae are discussed, and a re-evaluation of the genus Hemimesochra Sars is made. It is concluded that this genus should encompass only the type species H. clavularis Sars. ?Leimia dubia Wells and H. nympha Por are transferred to the new genus Boreolimella,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bathycamptus eckmani; Canthocamptidae; Hemimesochra; Hemimesochra clavularis; Hemimesochra nixe; Hemimesochra rapiens; Hemimesochra secunda; Hemimesochra trisetosa; Heteropsyllus minutus; Leimia dubia; Paranannopidae; Psammocamptus; Pusillargillus; Tharyx luticastellus.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7085

Three simple culture devices for aquatic invertebrates and fish larvae with continuous recirculation of the medium
Provedor de dados: 27
Autores: Sorgeloos, P.; Persoone, G.
The 3 culturing devices described are based on the principle of the classic air-water lift, which facilitates continuous recirculation and aeration of the cultivation medium. The first device is a "circulation cylinder", convenient for hatching eggs of the brine shrimp &lt;i&gt;Artemia salina&lt;/i&gt; and for culturing algae and protozoans. In the second device, an internal basket (i.e., a glass cylinder with plankton-gauze bottom) prevents the animals being carried along in the air-water lift. The third device, analogous to the second, is provided with a lateral waste-drain and a water collector with siphon, which empties regularly into the main culture vessel. The second and third devices proved to be excellent for the cultivation of a variety of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Fish larvae; Instruments; Marine invertebrates.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3461

Systematic revision of &lt;i&gt;Entolium&lt;/i&gt;, &lt;i&gt;Propeamussium&lt;/i&gt; (Amusiidae) and &lt;i&gt;Syncyclonema&lt;/i&gt; (Pectinidae, Bivalvia, Mollusca) of the European boreal Cretaceous
Provedor de dados: 27
Autores: Dhondt, A.
The present paper contains a systematic revision of the genera &lt;i&gt;Entolium&lt;/i&gt; and &lt;i&gt;Propeamussium&lt;/i&gt; (Amusiidae) and &lt;i&gt;Syncyclonema&lt;/i&gt; (Pectinidae, Bivalvia, Mollusca) in European Cretaceous boreal seas.In &lt;i&gt;Entolium&lt;/i&gt; two species are described, in &lt;i&gt;Propeamussium&lt;/i&gt; one, and in &lt;i&gt;Syncyclonema&lt;/i&gt; eight of which one (&lt;i&gt;S. hagenowi&lt;/i&gt;) is new to science, two (&lt;i&gt;S. gamsensis&lt;/i&gt; and &lt;i&gt;S. haggi&lt;/i&gt;) are renamed and a former variety is given specific status (&lt;i&gt;S. haldonensis&lt;/i&gt;).Stress is laid on redefining the species, mostly along biological lines. Material has been studied from as many localities as possible; a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cretaceous; Fossils; Pectinidae [scallops].
Ano: 1971
URL: http://www.vliz.be/imisdocs/publications/294770.pdf

A room temperature procedure for the manual determination of urea in seawater
Provedor de dados: 27
Autores: Goeyens, L.; Kindermans, N.; Yusuf, M.A.; Elskens, M.
Several earlier studies underpin the important role of dissolved organic matter and more particularly urea in phytoplanktonic nitrogen uptake fluxes. Generally, the determination of urea concentrations relies on the formation of an imidazolone-thiosemicarbizide complex, a complexation which requires very accurate temperature control when carried out at high temperature. It is also possible, however, to obtain reliable results with a room temperature procedure. The measured abundances for both complexation at high temperature (85 degree C, 20 min) and at ambient temperature (22 degree C, 72 h) are closely comparable. Lower values are observed for temperatures &lt;10 degree C though. Moreover, a comparison of both techniques reveals similar precision...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dissolved organic carbon; Sea water; Temperature; Urea; Water analysis.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7858

Végétation marine de la Corse (Méditerranée): IV. Documents pour la flore des algues
Provedor de dados: 27
Autores: Coppejans, E.
The author gives a supplementary list of seaweeds (Chlorophyceae, Bryopsidophyceae, Phaeophyceae, Rhodophyceae) collected at La Revellata (Calvi-Corsica) in the period 1977-1981. 45 taxa are newly listed: 12 have not previously been reported from Corsica, others have only sporadically been found and some have been collected by us from uncommon biotopes. The ecological conditions and precise localities, as well as the herbarium specimens are mentioned. More common species are also added in order to complete the species list from the region of Calvi. The gametophyte of &lt;i&gt;Polysiphonia banyulensis&lt;/i&gt; is described: the differences between &lt;i&gt;Bonnemaisonia aspargoides&lt;/i&gt; and &lt;i&gt;B. clavata&lt;/i&gt; are discussed; a form of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae; Mediterranean Region.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3404

Accumulation of suspended barite at mesopelagic depths and export production in the Southern Ocean
Provedor de dados: 27
Autores: Dehairs, F.A.; Baeyens, W.F.J.; Goeyens, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10162

Photosynthetic planulae and planktonic hydroids: contrasting strategies of propagule survival
Provedor de dados: 27
Autores: Pagliara, P.; Bouillon, J.; Boero, F.
Settlement delays can be important to prevent propagule waste when proper settling substrates are not immediately available. Under laboratory conditions, the planulae of &lt;i&gt;Clytia viridicans&lt;/i&gt; underwent two alternative developmental patterns. Some settled on the bottom, forming a hydranth-gonotheca complex that produced up to four medusae and later either degenerated or gave rise to a hydroid colony. Other planulae settled right below the air-water interface, forming floating colonies that eventually fell to the bottom and settled. &lt;i&gt;Halecium nanum&lt;/i&gt; released planulae with a rich population of symbiotic zooxanthellae that survived into a rearing jar for three months. After a long period of apparent quiescence (possibly fuelled...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydrozoa.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/232425.pdf

Contribution à la connaissance du genre &lt;i&gt;Euprymna&lt;/i&gt; Steenstrup, 1887 (Mollusca Cephalopoda)
Provedor de dados: 27
Autores: Adam, W.
New description of &lt;i&gt;Euprymna stenodactyla&lt;/i&gt; (Grant, 1833) and description of &lt;i&gt;Euprymna hoylei&lt;/i&gt; sp. nov. (=&lt;i&gt;E. stenodactyla&lt;/i&gt;) Hoyle, 1904 and Voss, 1954, 1963 (non Grant, 1833).
Tipo: Info:eu-repo/semantics/article
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/303512.pdf

First record of &lt;i&gt;Synidotea laevidorsalis&lt;/i&gt; (Miers, 1881) (Crustacea: Isopoda) in Europe (Gironde estuary, France)
Provedor de dados: 27
Autores: Mees, J.; Fockedey, N.
This note reports on the presence of a well established population of the isopod &lt;i&gt;Synidotea laevidorsalis&lt;/i&gt; (Miers) in the Gironde estuary (southwestern France). This species is new for the European fauna. &lt;i&gt;S. laevidorsalis&lt;/i&gt; is a nonendemic cool-temperate to subtropical, shallow-water species which was probably introduced into the study area from Asia. In the salinity range of 1 to 10 g l&lt;sup&gt;-1&lt;/sup&gt; of the Gironde the species constitutes an important component of the brackish-water hyperbenthic community. The population was already present in 1975 when it was misidentified as the native species &lt;i&gt;Idotea emarginata&lt;/i&gt; (Fabricius).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Isopoda Synidotea laevidorsalis (Miers; 1881) ANE; France; Gironde Estuary.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2740

Fish assemblages of European tidal marshes: a comparison based on species, families and functional guilds
Provedor de dados: 27
Autores: Mathieson, S.; Cattrijsse, A.; Costa, M.J.; Drake, P.; Elliot, M.; Gardner, J.; Marchand, J.
In considering the use of estuarine habitats by fish assemblages, alternative views of the assemblage are increasingly being explored, based on functional rather than taxonomic aspects. The allocation of all taxa to a number of functional guilds allows a description of fish assemblages in terms of vertical zonation, habitat preferences, including the substratum preference of benthic/demersal species, and dietary preferences. This paper presents the first comparison of the structure of the fish assemblages in the tidal marshes of 6 European estuaries (Bay of Cadiz, Spain; Mira, Portugal; Loire, France; Westerschelde, The Netherlands; Humber, UK; Forth, UK). Cluster analysis was used to compare the assemblages recorded in 29 tidal marsh and associated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists Salt marshes Species diversity Statistical analysis Taxonomy Trophic relationships Teleostei ANE; British Isles; England; Humberside; Humber Estuary ANE; British Isles; Scotland; Firth of Forth ANE; France; Pays de Loire; Loire Estuary.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/100422.pdf

The potential impact of meiofauna on the recruitment of macrobenthos in a subtidal coastal benthic community of the Ligurian Sea (north-western Mediterranean): a field result
Provedor de dados: 27
Autores: Danovaro, R.; Fraschetti, S.; Belgrano, A.; Vincx, M.; Curini-Galletti, M.C.; Albertelli, G.; Fabiano, M.
The composition and dynamics of meio- and macrofauna in a subtidal location at Zoagli (Ligurian Sea, Italy) were followed for an annual cycle (from January 1991 to January 1992). Polychaete recruitment occurred during spring and late summerautumn. The increase in density of predatory nematodes (dominated by &lt;i&gt;Oncholaimellus, Viscosia, Mesacanthion &lt;/i&gt;and &lt;i&gt;Chromaspirina&lt;/i&gt;) and turbellarians corresponded to the collapse of macrobenthos recruits. Such alteration was probably due to predation by turbellarians and predator-nematodes during and immediately after the macrofaunal larval settlement. Differences in predator pressure were observed between spring and autumn. Conversely, no significant impact was observed on bivalves. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos Meiofauna Predation Recruitment Bivalvia Nematoda [Nematodes] Polychaeta [Bristle worms] Turbellaria [Flatworms] MED; Ligurian Sea.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7276

The use of meiobenthos in pollution monitoring studies: a review
Provedor de dados: 27
Autores: Vincx, M.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/book
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/221134.pdf

Enrichment of live food with essential fatty acids and vitamin C: effects on milkfish (&lt;i&gt;Chanos chanos&lt;/i&gt;) larval performance
Provedor de dados: 27
Autores: Gapasin, R.S.J.; Bombeo, R.; Lavens, P.; Sorgeloos, P.; Nelis, H.J.
The effects of essential fatty acids (EFA) and vitamin C-enriched live food on growth, survival, resistance to salinity stress and incidence of deformity in milkfish larvae reared in tanks were investigated. Larvae were either fed rotifers cultured on &lt;i&gt;Chlorella&lt;/i&gt; sp. and newly hatched &lt;i&gt;Artemia&lt;/i&gt; nauplii (control), highly unsaturated fatty acid (HUFA)-enriched rotifers and &lt;i&gt;Artemia&lt;/i&gt; nauplii or HUFA + vitamin C-enriched rotifers and &lt;i&gt;Artemia&lt;/i&gt; nauplii. Milkfish growth in outdoor nursery ponds was also assessed to compare with growth in indoor tanks. Milkfish fed rotifers/&lt;i&gt;Artemia&lt;/i&gt; enriched with HUFA (32-48 mg dry weight, DW) or HUFA + vitamin C (33-45 mg DW) exhibited...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chanos chanos [milkfish].
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=303

Distribution of benthic diatom assemblages in the Westerschelde (Zeeland, The Netherlands)
Provedor de dados: 27
Autores: Sabbe, K.; Vyverman, W.
The benthic diatom assemblages of the Westerschelde-estuary were studied by means of multivariate analysis. Two main groups and eight subgroups were distinguished. The relation with salinity and sediment composition was investigated. A clear relation between grain size and the distribution of the assemblages was found.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Diatoms Geographical distribution ANE; Netherlands; Westerschelde.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262331.pdf

The holothurians of Easter Island
Provedor de dados: 27
Autores: Massin, C.
The holothurians collected during the "DIS RAPA NUI 270" Expedition (27-11-93 to 24-12-93) at Easter Island are described together with all the species already mentioned from the Island. Nine species are known. Distribution, variability and endemism of these species are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological sampling Endemic species Taxonomy Holothurioidea [Sea cucumbers] Holothuroidea [Sea cucumbers] ISE; Chile; Easter I.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303536.pdf

Projekt Zee eindverslag: 9. De bezoedeling van mariene organismen = Projet mer rapport final: 9. Contamination des produits de la mer
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Distèche, A.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/259832.pdf

Pollutie door detergenten als mogelijke oorzaak van de mislukte oesterkweek in de Spuikom te Oostende
Provedor de dados: 27
Autores: Thielemans, L.; Fiers, F.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6996

Impératifs d'une gestion de la mer et nécessité d'un modèle mathématique
Provedor de dados: 27
Autores: Nihoul, J.C.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266895.pdf

&lt;i&gt;Cheironchus paravorax&lt;/i&gt; n. sp. and &lt;i&gt;Cheironchus vorax &lt;/i&gt; Cobb, 1917 from the Campeche Sound, an oil producing zone in the Gulf of Mexico (Nemata: Selachinematidae)
Provedor de dados: 27
Autores: Castillo-Fernandez, D.; Decraemer, W.
A new species &lt;i&gt;Cheironchus paravorax&lt;/i&gt; n. sp. is described from the oil producing zone of Campeche Sound in the Gulf of Mexico. It closely resembles &lt;i&gt;C. vorax&lt;/i&gt; Cobb, 1917 but differs by its more slender habitus, different tail shape with blister, shorter and slightly stouter spicules and finer buccal armature. SEM studies provide additional information on the body cuticle, the head region and buccal armature, and in male on the precloacal supplements and gubernaculum. &lt;i&gt;C. vorax&lt;/i&gt; Cobb, 1917 is redescribed based on specimens from the Gulf of Mexico.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/151129.pdf

Physico-chimie de l'estuaire: dégradation de la matière organique et processus d'oxydo-réduction dans l'estuaire de l'Escaut
Provedor de dados: 27
Autores: Billen, G.; Smitz, J.; Somville, M.; Wollast, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266415.pdf

Ecotoxicological testing for the marine environment: report on an international Symposium held in Belgium in 1983
Provedor de dados: 27
Autores: Persoone, G.; Jaspers, E.; Claus, C.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecotoxicology; Marine environment; Toxicity tests.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3224

A simplified &lt;sup&gt;14&lt;/sup&gt;C method for grazing measurements on natural planktonic populations
Provedor de dados: 27
Autores: Daro, M.H.
The method used consists of adding highly radioactive material (40 µCi/l NaH&lt;sup&gt;14&lt;/sup&gt;CO&lt;sub&gt;3&lt;/sub&gt;) to sea water with its natural concentrations of zoo- and phytoplankton, incubating this water in the light, separating zoo- from phytoplankton after 1h or at the most 2h and measuring the radioactivity of both. Under such conditions, the concentration of the tracer in phytoplankton can be simplified as a linear function of time, and that of the zooplankton as a parabolic function of time. This simplification leads to an overestimation of grazing of at most 2-3%. Comparisons with the Coulter Counter method are given and discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1978
URL: http://www.vliz.be/imisdocs/publications/262351.pdf

Deux espèces nouvelles d'Ironidae marins; observations sur les spermatozoïdes flagellés des Nématodes
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
Description of a new species of Syringolaimus, S. renaudae n. sp., from the Cape Basin, south western Atlantic deep-sea ooze from 3 694 to 4 180 m depth. S. renaudae n. sp. is characterized by its rather large size, its cephalic collar, three bifid and asymétrie teeth, extension of pharyngeal bulb and spicule morphology. Noteworthy are the very peculiar spindleshaped and flagelliform spermatozoa, that are similar to those found in S. loofi n. sp. described from the coast of the Netherlands.
Tipo: Info:eu-repo/semantics/article
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/276500.pdf

Elemental concentrations in atmospheric particulate matter sampled on the North Sea and the English Channel
Provedor de dados: 27
Autores: Otten, P.; Injuk, J.; Van Grieken, R.
Air sampling on a series of 10 cruises, spanning the whole area of the North Sea, yielded detailed spatial distributions of atmospheric concentrations of Al, Si, S, Cl, P, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, and Pb determined by EDXRF. A strong influence of the air mass history on the heavy metal concentrations was demonstrated for the whole sampling period of 5 years. Factor analysis performed on all samples collected with a stack filter unit resulted in the identification of three factors for the coarse particle fraction (sulphate particles with trace metals, sea salt particles and soil dust or metallurgic particles containing Fe) and four factors for the fine particle fraction (sea salt, sulphate with Pb and Zn), trace metal particles with Cu, Ni, Zn...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3896

Catalogue of the new marine harpacticoid copepods
Provedor de dados: 27
Autores: Bodin, P.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: New species; Taxonomy; Harpacticoida.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/276392.pdf

&lt;i&gt;Syndesmis longicanalis&lt;/i&gt; sp.nov., an umagillid turbellarian (Plathelminthes) from echinoids from the Kenyan coast
Provedor de dados: 27
Autores: Moens, J.B.; Martens, E.E.; Schockaert, E.R.
A new species of &lt;i&gt;Umalgillid rhabdocoel&lt;/i&gt; is described from echinoids from the Kenyan coast. &lt;i&gt;Syndesmis longicanalis&lt;/i&gt; sp.nov. is found in the intestine of both &lt;i&gt;Tripneustes gratilla&lt;/i&gt; and &lt;i&gt;Toxopneustes pileolus&lt;/i&gt; collected near Mombasa. The most stricking characteristic, which distinguishes the new species from all known species of the &lt;i&gt;Syndesmis-Syndisyrinx&lt;/i&gt; group is the very long scelotic bursal canal and the three ventral glandular papillae. A more detailed comparison between the specimens from the two different hosts demonstrates that they belong to the same species although some differences are statistically significant.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/217167.pdf

Elemental concentrations and heavy metal pollution in sediments and suspended matter from the Belgian North Sea and the Scheldt estuary
Provedor de dados: 27
Autores: Van Alsenoy, V.; Bernard, P.; Van Grieken, R.
The elemental composition of sediment and suspended matter samples from the Belgian coastal and offshore regions of the Southern Bight of the North Sea and from the Scheldt estuary has been determined using X-ray fluorescence and atomic absorption spectrometry.Special attention was given to the heavy metals of the black and grey lists. The bulk sediment and the clay/silt fraction were analyzed. The average heavy metal contents in the fraction &lt;63 µm were comparable to the levels in the suspended matter. Different normalization techniques led to the identification of two different populations of sediments. Most of the sediments were enriched in Cd, Cr, Hg, Pb and Zn but no enrichment was found for Cu and Ni. Comparing these data with older data indicates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals; Pollution; Sediments; Suspended particulate matter.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2789

Etudes hydrobiologiques sur les eaux saumâtres de Belgique: VIII. Les eaux de Doel et environs dans la région du Bas-Escaut belge (1). (Période 1950-1951)
Provedor de dados: 27
Autores: Van Meel, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289079.pdf

Rapport: de kwaliteit van de Schelde 1994
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Water quality.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/128413.pdf

Algues marines nouvelles pour la Côte du Boulonnais ( Pas-de-Calais, France), 2 = Algues marines nouvelles pour la Côte du Boulonnais ( Pas-de-Calais, France), 2
Provedor de dados: 27
Autores: Mol, I.; Coppejans, E.
The authors describe 5 seaweeds that have not been collected previously from the French coasts of the Channel: the Phaeophyceae &lt;i&gt;Mikrosyphar polysiphoniae, Myrionema&lt;/i&gt; cf. &lt;i&gt;strangulans, Leathesia difformis, Punctaria latifolia&lt;/i&gt;; the Rhodophyceae &lt;i&gt;Chromastrum polyblastum&lt;/i&gt;. The Chlorophyceae &lt;i&gt;Spongomorpha aeruginosa&lt;/i&gt; and &lt;i&gt;Cladophora sericea&lt;/i&gt; are added to complete the existing Field Guide. Ecological data are added to the morphological and anatomical descriptions.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae New records ANE; France; Nord; Pas-de-Calais.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3208

International study on &lt;i&gt;Artemia&lt;/i&gt; : LX. Allozyme data suggest that a new &lt;i&gt;Artemia&lt;/i&gt; population in southern Chile (50° 29' S; 73° 45' W) is &lt;i&gt;A. persimilis&lt;/i&gt;
Provedor de dados: 27
Autores: Gajardo, G.; Mercado, C.; Beardmore, J.A.; Sorgeloos, P.
An &lt;i&gt;Artemia&lt;/i&gt; population from a site recently described in Chile and located in a semi-arid and humid hydrographical zone (Torres del Paine National Park), was electrophoretically characterized and cross-bred (followed through &lt;i&gt;F&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;) to reference samples of &lt;i&gt;A. franciscana&lt;/i&gt; (San Francisco Bay, California, USA) and &lt;i&gt;A. persimilis&lt;/i&gt; (Buenos Aires, Argentina), which are the species most likely to be found in Chile. The population exhibited high levels of genetic variability as judged by the percentage of polymorphic loci (&lt;i&gt;P&lt;/i&gt;=53.3), mean number of alleles per locus (&lt;i&gt;n&lt;/i&gt;=2.2) and mean heterozygosity (&lt;i&gt;H&lt;/i&gt;=0.176). Based on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allopatric populations; Allozymes; Genetic isolation; Hybridization; Population genetics; Chile.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4016

Contributions towards a specific DHA enrichment in the live food &lt;i&gt;Brachionus plicatilis&lt;/i&gt; and &lt;i&gt;Artemia&lt;/i&gt; sp.
Provedor de dados: 27
Autores: Dhert, Ph.; Sorgeloos, P.; Devresse, B.
This paper reports on enrichment techniques oriented towards a specific DHA accumulation in the live prey &lt;i&gt;Brachionus plicatilis&lt;/i&gt; and &lt;i&gt;Artemia sp.&lt;/i&gt; The product used in these experiments (DHA7) is an experimental emulsion with a DHA/EPA ratio 6.7:1. Rotifers enriched with this pure DHA7 emulsion contained up to 69 mg/g DW DHA and a DHA/EPA ratio of 1.6. The DHA/EPA ration could be increased to a much higher level by different enrichment techniques. Dilution of the DHA7 emulsion with coconut oil prior to enrichment also had a beneficial effect on the DHA/EPA ratio of the rotifers. Using a mixture DHA7/coconut oil 3:7 the DHA/EPA ratio could be raised to 4.9. In &lt;i&gt;Artemia&lt;/i&gt; DHA levels were slightly influenced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Brachionus plicatilis.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2688

Diffusion et migration de l'eau polluée le long des plages belges: nouvelle expérience avec rejet de 100 kg de rhodamine B: conclusions préliminaires
Provedor de dados: 27
Autores: Dartevelle, Z.; Pinon, J.; Rousseau, R.; Deschacht, W.
A solution of one hundred kilograms of B rhodamine was introduced in a sewer which discharges into the sea. The dispersion of the discharge was observed and located by means of 4 optical theodolites and by air photographs.  Water samples were collected in the coloured plume and on its boundaries during a whole tidal cycle. They were analysed by spectrofluorimetry. The results demonstrate the complexity of the factors that affect water movements. The drift seems to be mainly due to the wind. The predominating winds contribute to maintain the waste water closely to the water line over a distance of several miles.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/303523.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt;: 57. Morphological and molecular characters suggest conspecificity of all bisexual European and North African &lt;i&gt;Artemia&lt;/i&gt; populations
Provedor de dados: 27
Autores: Triantaphyllidis, G.; Criel, G.R.J.; Abatzopoulos, T.J.; Thomas, K.M.; Peleman, J.; Beardmore, J.A.; Sorgeloos, P.
A scanning electron microscopy (SEM) study of bisexual &lt;i&gt;Artemia&lt;/i&gt; populations revealed that populations representing the species &lt;i&gt;A. franciscana, A. persimilis, A. urmiana, A. sinica&lt;/i&gt; and a recently described species from Kazakhstan have a pair of spine-like outgrowths at the basal parts of their penes, whereas populations from Southern Europe and North Africa (i.e. Mediterranean populations) lack these spine-like outgrowths. Allozyme and DNA polymorphisms, detected by allozyme starch gel electrophoresis and AFLP fingerprinting, respectively, suggested conspecificity of the studied populations from the broader Mediterranean basin. Male specimens from the collection of the Natural History Museum of London (UK) of the extinct...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2977

Quelques espèces Ouest-Africaines de &lt;i&gt;Nassarius&lt;/i&gt; (s.l.) décrites par F.P. Marrat (1877, 1878) et par H. von Maltzan (1884) (&lt;i&gt;Mollusca prosobranchia&lt;/i&gt;)
Provedor de dados: 27
Autores: Adam, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/296120.pdf

Presentation on the objectives of the studygroup on aquaculture of the International Scheldt Faculty
Provedor de dados: 27
Autores: Klaassen, R.P.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2839

The role of ecology in marine pollution monitoring
Provedor de dados: 27
Autores: Gray, J.S.; Boesch, D.; Heip, C.H.R.; Jones, A.M.; Lassig, J.; Vanderhorst, R.; Wolfe, D.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Pollution monitoring.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/260467.pdf

Effect of vitamin C incorporation in live food on the larviculture success of aquaculture species
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
A study was undertaken to upgrade the levels of vitamin C in &lt;i&gt;Artemia&lt;/i&gt; and &lt;i&gt;Brachionus&lt;/i&gt; through bioencapsulation and to investigate in this way the requirements for ascorbic acid (AA) during larviculture of fish and prawn. Ascorbyl palmitate (AP) was used as the vit C source because of its stable and lipophylic characteristics which allowed its incorporation in booster emulsions and its readily conversion into AA by &lt;i&gt;Brachionus&lt;/i&gt; and &lt;i&gt;Artemia&lt;/i&gt; . Under standard conditions very high levels of AA could be incorporated into the &lt;i&gt;Artemia&lt;/i&gt; nauplii: supplementation of the enrichment emulsion with 20% AP (w/w) increased the AA-content up to 2000 ppm after 24h enrichment. Also in...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2743

Manipulation of DHA/EPA ratio in live feed: preliminary results on the effects on survival, growth, pigmentation and fatty acid composition of turbot larvae &lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.
Provedor de dados: 27
Autores: Curé, K.; Gajardo, G.; Coutteau, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758).
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2543

Kinetics of iron (II) oxidation in seawater of various pH
Provedor de dados: 27
Autores: Roekens, E.J.; Van Grieken, R.E.
The rate of iron(II) oxidation in the North Sea water of pH 5.5-10 in the range 10-25°C has been studied. The oxygenation rate depends linearly on the iron(II) and dissolved oxygen concentrations. The second-order dependence on (OH&lt;sup&gt;-&lt;/sup&gt;), found by several investigators for synthetic solutions, was confirmed in seawater, but only for pOH&gt;6.9. For pOH&lt;5.9 the rate appeared to be independent of the pOH. In the intermediate range, pOH&lt;5.9-6.9, corresponding to the natural pH of seawater, a first-order dependence on the pOH is obeyed. The important discrepancy in the literature between the second-order rate constant for NaCHO&lt;sub&gt;3&lt;/sub&gt; solutions and for seawater can be attributed predominantly to the incorrect...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Iron; Kinetics; Oxidation.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3293

Effective supplementation of arginine in the diets of juvenile marine shrimp, &lt;i&gt;Penaeus monodon&lt;/i&gt;
Provedor de dados: 27
Autores: Chen, H.-Y.; Leu, Y.-T.; Roelants, I.
Effective dietary supplementation of arginine was demonstrated in juvenile &lt;i&gt;Penaeus monodon&lt;/i&gt; which can not effectively utilize crystalline amino acids in their diets. In an 8-week feeding trial, juvenile &lt;i&gt;P. monodon&lt;/i&gt; (average body weight, 0.95 g) were fed casein-based purified diets supplemented with cellulose-acetate-phthalate (CAP) microencapsulated L-arginine, or glycerol-mono-stearate (GM) microencapsulated L-arginine. There was no significant difference in the growth-promoting effects and feed conversion among the CAP, FM and SAL groups. The mean final weight of shrimp fed the crystalline-arginine supplemented diet was higher than that of the group fed the unsupplemented diet but the difference was not significant....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus monodon [giant tiger prawn].
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2704

Recherches sur l'ostréiculture dans le bassin de chasse d'Ostende en 1968
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity Community composition Oyster culture Shallow water ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1970
URL: http://www.vliz.be/imisdocs/publications/238573.pdf

Bedload and nearbed detritus transport in a tidal saltmarsh creek
Provedor de dados: 27
Autores: Hemminga, M.A.; Cattrijsse, A.; Wielemaker, A.
Bedload and nearbed transport of coarse (&gt;1mm) detritus particles were investigated in a tidal creek of a salt marsh in the Westerschelde estuary (south-west Netherlands). Using a fyke net positioned on the creek bottom, hourly transport through the creek was measured during 14 flood-ebb cycles in 1990 and 1991. Transport was bi-directional with flood imports varying between 32 and 2601 g dry weight (DW), and ebb exports varying between 0 and 4737 g DW. In nine of 14 tidal cycles, the creek was functioning as a net exporting system. The material that was exported with the ebb consisted mainly of macrophyte material. The annual loss of coarse organic matter by bedload plus nearbed transport through the creek was estimated to be less than 0-2% of the...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=308

The amphiatlantic distribution of &lt;i&gt;Leptastacus macronyx&lt;/i&gt; (T. Scott, 1892) (Copepoda: Harpacticoida): a paradigm of taxonomic confusion, and a cladistic approach to the classification of the Leptastacidae Lang, 1948
Provedor de dados: 27
Autores: Huys, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cladistics Taxonomy Leptastacus macronyx (T. Scott; 1892).
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/266794.pdf

Contribution to the marine biodiversity inventory: a checklist of the Amphipoda (Crustacea) of the Southern Ocean
Provedor de dados: 27
Autores: De Broyer, C.; Jazdzewski, K.
A checklist, with synonymical bibliography, of all benthic, supralittoral and pelagic Amphipoda (Gammaridea, Caprellidea and Hyperiidea) occurring in the Southern Ocean is drawn up, mostly from taxonomical literature checked until 31 December 1992. 883 taxa have been recorded: 711 spp. and subspp. of Gammaridea, 28 spp. of Caprellidea, 69 spp. and subspp. of Hyperiidea as well as 75 unidentified spp. (73 Gammaridea, 2 Caprellidea). Distribution in the East or West Antarctic sub-regions, in the Subantarctic Islands sub-region, in the Magellanic sub-region and in the Tristan da Cunha district is mentioned. Bathyal and abyssal benthic occurrence is indicated as well as the general bathymetrical distribution of the pelagic species occurring south of 45°S. The...
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Amphipoda [amphipods] PS; Southern Ocean.
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/251879.pdf

Observations on the ultrastructure of the copulatory organ of &lt;i&gt;Archilopsis unipunctata&lt;/i&gt; (Fabricius, 1826) (Proseriata, Monocelididae)
Provedor de dados: 27
Autores: Martens, E.E.; Schockaert, E.R.
The copulatory organ in adult specimens of &lt;i&gt;Archilopsis unipunctata&lt;/i&gt; has been studied by transmission electron microscopy. This copulatory organ is of the conjuncta-duplex type with eversible cirrus. The seminal vesicle, lined with a nucleate epithelium, is surrounded by spirally arranged muscles. The fibers are enclosed in a sheath that is continuous with the septum of the bulbus and the basement lamina of the male canal epithelium. Distally to the seminal vesicle the bulbus is filled with the secretory cell-necks of the prostate glands. The male canal shows three different parts: seminal duct, ejaculatory duct and eversible cirrus. At the transition of seminal duct and ejaculatory duct two prostate ducts open into the lumen. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal reproductive organs; Ultrastructure; Archilopsis unipunctata; Proseriata; Turbellaria [Flatworms].
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3407

The effect of lipid supplementation on growth and fatty acid composition of &lt;i&gt;Tapes philippinarum&lt;/i&gt; spat
Provedor de dados: 27
Autores: Caers, M.; Coutteau, P.; Lombeida, P.; Sorgeloos, P.
The present study investigated the possible use of emulsions as an artificial lipid supplement to live algae for seed of the Manila clam &lt;i&gt;Tapes philippinarum&lt;/i&gt;. The uptake and assimilation of an emulsion, rich in docosahexaenoic acid (DHA, 22:6n-3) and eicosapentaenoic acid (EPA, 20:5n-3) and fed at concentrations of 20 and 40% of the algal dry weight, were verified analytically by fatty acid analysis of the animals and their diets. Dietary requirements for n-3 highly unsaturated fatty acids (HUFA) were examined by supplementing &lt;i&gt;Dunaliella tertiolecta&lt;/i&gt;, which contains no polyunsaturated fatty acids longer than 18:3n-3 and &lt;i&gt;Tetraselmis suecica&lt;/i&gt;, which contains EPA but only trace amounts of DHA. An algal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clam culture Diets Fatty acids Feed composition Feeding experiments Food additives Lipids Tapes philippinarum (Adams &amp; Reeve; 1850).
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=299

Epsilonematidae (Nematoda: Desmodoroidea) from the East African coast, with a discussion on the external morphology  of cuticular appendages
Provedor de dados: 27
Autores: Verschelde, D.; Vincx, M.
Morphological features of the cuticular appendages, such as spines, thorns, setae and flaps are described on the basis of SEM pictures of three new and three known species of the Epsilonematidae from East African coasts. Epsilonema espeeli sp.n. is characterized by the presence of six subcephalic setae and a large number of hair-like spines on the dorsal body side; males are characterized by three pairs of copulatory thorns, three precloacal thorns and an anal tube; females have a large citucular flap covering the vulva. Metepsilonema iuvenisspinosum sp.n. is characterized by its small size, ornamentation and shape of the body annules, conspicuous inversions in direction of the body annules (3 dorsal inversions and 1 ventral inversion), oval amphid, 4...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphology; Systematics; Epsilonematidae.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7273

Chemical characterization of individual particles by electron probe X-ray microanalysis and electron energy-loss spectrometry
Provedor de dados: 27
Autores: Xhoffer, C.
Among the many techniques available at the Micro and Trace Analysis Center (MiTAC) for the observation and analysis of individual particles, electron probe X-ray microanalysis (EPXMA) in combination with multivariate classification techniques allows the most advanced characterization of individual particles in a fast and efficient way. All facilities of EPXMA were used for the source apportionment of more than 25,000 individual aerosol particles detected above the North Sea, the English Channel and the Celtic Sea. The North Sea aerosol is predominantly composed of sea salt, sulfur-rich particles, silicates and calcium sulfate particles. Their abundance is dependent on meteorological conditions and sample location. Differences were studied on the basis of...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/226567.pdf

Identification of individual aerosol particles containing Cr, Pb, and Zn above the North Sea
Provedor de dados: 27
Autores: Van Malderen, H.; Hoornaert, S.; Van Grieken, R.
Aerosol samples have been collected over the Southern Bight of the North Sea from an aircraft. In this way, 96 samples were taken for single-particle analysis during 16 flights. Almost 45,000 individual particles were analyzed with electron probe X-ray microanalysis. More than 5,000 of these were found to contain significant concentrations of one or more of the heavy metals Cr, Pb, and Zn. With the help of hierarchical, nonhierarchical, and fuzzy clustering techniques, various heavy metal-containing particle types could be identified. Significant differences in abundances were detected in the North Sea heavy metal aerosol, depending on the origin of the air masses. In samples with continental influence 50 times more Zn- and Pb-containing particles were...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3150

Production and evaluation of resting eggs of &lt;i&gt;Brachionus plicatilis&lt;/i&gt; originating from the P.R. of China
Provedor de dados: 27
Autores: Dhert, Ph.; Schoeters, K.; Vermeulen, P.; Sun, J.; Goa, S.; Shang, Z.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachionus plicatilis Müller; 1786.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2557

Long-term increase in crustacean zooplankton abundance in the southern Benguela upwelling region (1951-1996): bottom-up or top-down control?
Provedor de dados: 27
Autores: Verheye, H.M.; Richardson, A.J.
Since 1951, zooplankton samples have been collected on the shelf along the west coast of South Africa, where pelagic fish recruit each year. Retrospective analysis of collections made during peak recruitment in austral autumn showed a significant increase in the abundance of planktonic crustaceans by two orders of magnitude (from 3.74 × 10&lt;sup&gt;3&lt;/sup&gt; ind.m&lt;sup&gt;-2&lt;/sup&gt; in 1951 to 7.03 × 10&lt;sup&gt;5&lt;/sup&gt; ind.m&lt;sup&gt;-2&lt;/sup&gt; in 1996). This long-term increase was accompanied by a shift in the community size structure, which parallelled altered regimes of anchovy and sardine, two size-selective planktivores. The increase in crustacean zooplankton could be related to the observed long-term intensification of coastal...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/242842.pdf

Chitons du sud-ouest de l'Océan Indien
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/296119.pdf

The reproductive potential of copepods in brackish water
Provedor de dados: 27
Autores: Heip, C.H.R.
The reproductive potential of 3 harpacticoid and 1 cyclopoid copepods, measured by the intrinsic rate of natural increase, was calculated from field data. Calculated values are much smaller than those obtained from laboratory experiments. The difference between species is small and cannot account for differences in occurrence.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater environment Reproduction Copepoda [copepods] Belgium; Knokke-Heist; Dievengat.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3435

Pelagische en demersale vissen: niet-commerciële species
Provedor de dados: 27
Autores: Redant, F.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288151.pdf

An intensive approach to Atlantic halibut fry production
Provedor de dados: 27
Autores: Holmefjord, I.; Gulbrandsen, J.; Lein, I.; Refstie, T.; Léger, P.; Harboe, T.; Huse, I.; Sorgeloos, P.; Bolla, S.; Olsen, Y.; Reitan, K.I.; Vadstein, O.; Øie, G.; Danielsberg, A.
The larval stage is regarded to be the main bottleneck of halibut production. Halibut eggs were obtained from captive broodstock both by stripping and by natural spawning. Artificial photoperiods were used to increase the total spawning season. Yolk sac larvae are presently produced either in small stagnant units or in large flow through systems. A major consideration is to avoid stress of the larvae, caused by mechanical disturbances of the larvae and by high bacterial load or high ammonia levels in the water.The experimentation showed that halibut larvae began to ingest algae earlier than rotifers &lt;i&gt;Brachionus&lt;/i&gt; sp. Supplementation of algae to first feeding tanks resulted in enhanced survival and growth rate of the larvae. Both rotifers...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2709

Production and consumption of biological particles in temperate tidal estuaries
Provedor de dados: 27
Autores: Heip, C.H.R.; Goosen, N.K.; Herman, P.M.J.; Kromkamp, J.; Middelburg, J.J.; Soetaert, K.
The question is reviewed whether a balance exists between production and consumption of biological particles in temperate tidal estuaries and what the relationships are between the magnitude of production and consumption processes and system carbon metabolism. The production terms considered are primary production by phytoplankton, microphytobenthos, macroalgae and vascular plants and the chemoautotrophic production, mainly by nitrifying bacteria. The consumption terms are generalized by considering pelagic and benthic mineralization, but major consumer compartments, heterotrophic bacteria, zooplankton, meiobenthos, and macrobenthos are considered in detail. The proposition that estuaries are heterotrophic systems, and become more so when nutrient inputs...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8311

Classification of estuarine particles using automated electron microprobe analysis and multivariate techniques
Provedor de dados: 27
Autores: Bernard, P.C.; Van Grieken, R.E.
The suspended particulate matter from a series of stations in an estuary is automatically analyzed for 11 elements on a particle-by-particle basis by using electron microprobe X-ray microanalysis and an automatic image analysis system. The interpretation of the large acquired data set implies numerical multivariate analysis. The developed procedure consists of using cluster analysis on the particles of individual samples, followed by nearest centroid sorting over all samples from the study area. For the Ems estuary, the procedure provided 13 geochemically different particle types of which the relative abundance through the estuary could be followed and interpreted in terms of estuarine mixing processes. The presented methodology could be applied in other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuarine chemistry; Multivariate analysis; Suspended particulate matter.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3219

Aberrant individuals of &lt;i&gt;Neomysis integer&lt;/i&gt; and other Mysidacea: intersexuality and variable telson morphology
Provedor de dados: 27
Autores: Mees, J.; Fockedey, N.; Dewicke, A.; Janssen, C.R.; Sorbe, J.-C.
Intersexuality in the mysid &lt;i&gt;Neomysis integer&lt;/i&gt; is described from samples collected in the Elbe (north Germany), Eems-Dollard (north Netherlands), Westerschelde (south-west Netherlands) and Gironde (south-west France) estuaries. Individuals which had an irregularly shaped or nearly symmetrically rounded telson, rather than a typically truncated one, were also recorded from the four populations studied. A culture experiment with damaged specimens revealed that all types of abnormal telson morphology found in the field can result from regeneration of damaged parts. It is concluded that both intersexuality and aberrant telson morphology are widespread phenomena among estuarine &lt;i&gt;N. integer&lt;/i&gt; populations. Both abnormalities seem...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abnormalities Animal morphology Aquatic environment Brackish water Estuaries Estuarine organisms Physiology Mysidacea Neomysis integer (Leach; 1814) [An opossum shrimp].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7470

Effect of temperature on the uptake of copper by the brine shrimp, &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Blust, R.; Van Ginneken, L.; Decleir, W.
The effect of temperature on the uptake of copper by the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt; has been studied in chemically defined saltwater solutions. Animals were acclimated to temperatures ranging from 10°C to 35°C and exposed to copper at different temperatures within this range. The results show that within each temperature acclimation group, copper uptake increases with increasing temperature of exposure. Within each temperature acclimation group most of the variation can be related to the combined effect of temperature on the chemical speciation and diffusion rate of copper in the diffusion layer lining the exchange surfaces. The magnitude of the apparent activation energy for copper uptake indicates that it is a facilitated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2535

Sublittoral meiobenthic assemblages from disturbed and non-disturbed sediments in the Balearics
Provedor de dados: 27
Autores: Deudero, S.; Vincx, M.
Qualitative and quantitative differences in species composition of meiobenthic communities illustrate the differences among various taxonomic assemblages in the Balearic Islands (Western Mediterranean) analysed by means of multivariate analysis. Average densities ranged between 1000 and 4000 ind.10cm&lt;sup&gt;-2&lt;/sup&gt;, and are in the same range as previously reported from other shallow Mediterranean areas. The dominant meiofaunal taxa were Nematoda (range 40 to 75%), Turbellaria (5-47%) and Copepoda (2-14%), while other meiofaunal groups (Tardigrada and Rotifera) were only represented by approximately 5% of the total abundance. The dominant nematode families were Desmodoridae, Chromadoridae and Xyalidae. The meiofaunal communities showed little...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/232307.pdf

Nematode community structure along a Mediterranean shelf-slope gradient
Provedor de dados: 27
Autores: Soetaert, K.; Vincx, M.; Heip, C.H.R.
Nematode assemblages along a Mediterranean depth transect (160-1220 m) and vertically in the sediment were investigated. The station at the edge of the continental shelf (160 m) was distinctly different from those situated on the continental slope (280-1220 m). On the slope, nematode communities in the upper centimetre differed significantly from communities in the deeper sediment layers, which were dominated by fewer and larger species. Vertical segregation could be a factor explaining the coexistence of several species belonging to the genus &lt;i&gt;Sabatieria&lt;/i&gt;, with larger species penetrating deeper into the sediment. Clear differences in buccal morphology suggest food resource partitioning as the dominant factor promoting coexistence of...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8452

Ecologie van harpacticoide copepoden: structurele biodiversiteit in tropische zeegrasvelden = Ecology of harpacticoid copepods: structural biodiversity in tropical seagrass beds
Provedor de dados: 27
Autores: De Troch, M.
The term 'biodiversity' is the simple contraction of 'biological diversity', and at first sight the concept is simple too: biodiversity is the total sum of all biotic variation from genes to ecosystems (Purvis &amp; Hector, 2000). The challenge comes in measuring such a broad concept in ways that are useful. The measurement of diversity of one place, group or time is in itself more or less useless. But comparable measurements of diversity from multiple places, groups or times can help us to understand how diversity arose and how we can maintain it. Marine biodiversity is higher in benthic rather than in pelagic systems, and in coasts rather than in open ocean since there is a greater range of habitats near the coast. In addition, losses of marine...
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Meiofauna Seagrass Copepoda [copepods] Halodule wrightii Halophila ovalis Halophila stipulacea Harpacticoida Syringodium isoetifolium Thalassia hemprichii ASW; Mexico; Yucatan; Punta Allen ISEW; Philippines; Mindanao I. ISW; Kenya; Gazi Bay.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8882

A active wave generating-absorbing boudary condition for VOF type numerical model
Provedor de dados: 27
Autores: Troch, P.; De Rouck, J.
The objective of the present work is to discuss the implementation of an active wave generating–absorbing boundary condition for a numerical model based on the Volume Of Fluid (VOF) method for tracking free surfaces. First an overview of the development of VOF type models with special emphasis in the field of coastal engineering is given. A new type of numerical boundary condition for combined wave generation and absorption in the numerical model VOFbreak&lt;sup&gt;2&lt;/sup&gt; is presented. The numerical boundary condition is based on an active wave absorption system that was first developed in the context of physical wave flume experiments, using a wave paddle. The method applies to regular and irregular waves. Velocities are measured at one location...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8508

Echinodermes: Astéroïdes
Provedor de dados: 27
Autores: Jangoux, M.
The collection of starfishes collected in 1976, during the MUSORSTOM cruise off Philippine Islands, includes 36 species. One genus (&lt;i&gt;Pseudoceramaster&lt;/i&gt;) and four species (&lt;i&gt;Cheiraster capillatus, Iconaster elegans, Pseudoceramaster regularis, Stellaster convexus&lt;/i&gt;) are described as new. Most of the other specimens belong to poorly known species; several of them are recorded here for the second time.
Tipo: Info:eu-repo/semantics/article
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/297684.pdf

&lt;i&gt;Africanema interstitialis&lt;/i&gt; gen. nov., sp. nov., a species which indicates the relationship between the Trefusiidae (Halanonchinae) and the Tripyloididae (Nematoda)
Provedor de dados: 27
Autores: Vincx, M.; Furstenberg, J.P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Africanema interstitialis; Trefusiidae; Tripyloididae.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7061

Functional properties of the hemoglobins of &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Van den Branden, C.; D'Hondt, J.; Moens, L.; Decleir, W.
1. In hypoxic conditions &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; salina&lt;/i&gt; L. forms 3 hemoglobins, which until now had only been characterized by their electrophoretic mobility. 2. We have analysed the oxygen-binding properties of these 3 hemoglobins. 3. HbI shows the lowest oxygen affinity, has an almost negligible Bohr effect and it has no physiological adaptation to temperature changes. 4. HbII shows an intermediate oxygen affinity and a pronounced positive Bohr effect. 5. HbIII has a very high affinity for oxygen, an almost negligible Bohr effect and a good physiological adaptation to temperature changes. 6. By combining the 3 hemoglobins in different proportions &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; salina&lt;/i&gt; L. must be able to withstand...
Tipo: Info:eu-repo/semantics/article
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3580

Recherches sur la répartition de &lt;i&gt;Mytilicola intestinalis&lt;/i&gt; Steuer, 1905, le long de la côte belge (1950-1958)
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mytilicola intestinalis [red worm disease] ANE; Belgium; Belgian Coast.
Ano: 1960
URL: http://www.vliz.be/imisdocs/publications/289994.pdf

Decapsulated cysts and &lt;i&gt;Artemia&lt;/i&gt; flakes as alternative food sources for the culture of &lt;i&gt;Penaeus monodon&lt;/i&gt; postlarvae
Provedor de dados: 27
Autores: Stael, M.; Sanggontanagit, E.; Van Ballaer, E.; Puwapanich, N.; Tunsutapanich, A.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Penaeus monodon [giant tiger prawn].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2628

Preliminary data on the heritability of some quantitative characteristics in &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Tackaert, W.; Vanhaecke, P.; Sorgeloos, P.
A standard method has been developed to produce F&lt;sub&gt;1&lt;/sub&gt;-generation cysts from different zygogenetic strains and their cross-breeds. The F&lt;sub&gt;1&lt;/sub&gt; cysts were used to determine the quantitative heritability of the following characteristics: cyst hatchability, cyst diameter, larval growth, and temperature resistance of the freshly-hatched nauplii.Data are given for cysts produced from nine strains and seven cross-breeds. Important differences for all characteristics studied were noted between the cross-bred and the parental strains.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3203

Comparing species diversity and evenness indices
Provedor de dados: 27
Autores: Heip, C.H.R.; Engels, P.
In a low diversity brackish water habitat the diversity of the copepod community is best measured with the Shannon-Wiener information function and its evenness by an index proposed by the first author (&lt;i&gt;e&lt;sup&gt;H&lt;/sup&gt;&lt;/i&gt; -1)/(&lt;i&gt;S&lt;/i&gt; -1). This was shown by comparing the statistical behaviour of the more important diversity and evenness indices currently used.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3491

Les polluants radioactifs, métaliques et bactériens dans l'estuaire de l'Escaut et sur la côte belge
Provedor de dados: 27
Autores: Peeters, E.; Mertens, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria Heavy metals Pollutants Radioactive pollutants ANE; Belgium; Belgian Coast ANE; Netherlands; Westerschelde.
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/126134.pdf

Annotated list of new records of marine macroalgae for Kenya and Tanzania, since Isaac's and Jaasund's publications
Provedor de dados: 27
Autores: Coppejans, E.; Leliaert, F.; De Clerck, O.
48 species of Rhodophyta, 10 species of Phaeophyta and 38 species of Chlorophyta, newly reported since Isaac's publications on seaweeds from Kenya and Jaasund's papers on macroalgae fiom Tanzania, are listed with bibliograpbic, taxonomic and biogeographic comments. Some of these species were previously published in more detailed taxonomic studies by this paper's authors.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae; New records; Kenya; Tanzania.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/242248.pdf

Two new species of brood protecting Desmodoridae (Nematoda) from Guadeloupe
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
Two new Desmodoridae species are described: Croconema otti sp. n. and &lt;i&gt;Pseudochromadora incubans&lt;/i&gt; sp. n. The cuticular ornamentation and somatic setae of &lt;i&gt;C. otti&lt;/i&gt; sp. n. display features previously unknown within the genus. In &lt;i&gt;P. incubans&lt;/i&gt; sp. n. the position of the cephalic setae and latero-subdorsal amphids on the cephalic capsule, which is divided into two sections, are characteristic. Brood protection occurs in both species. In &lt;i&gt;C. otti&lt;/i&gt; sp. n. a single line of similar embryos is attached laterally on the left side of the body. In &lt;i&gt;P. incubans&lt;/i&lt; sp. n. up to three eggs, at different developmental stages, hang in a row under the modified area immediately anterior to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Descriptions; Taxonomy.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7141

International study on &lt;i&gt;Artemia&lt;/i&gt;: 19. Hatching data for ten commercial sources of brine shrimp cysts and re-evaluation of the "hatching efficiency" concept
Provedor de dados: 27
Autores: Vanhaecke, P.; Sorgeloos, P.
A comparative hatching study has been carried out with reference &lt;i&gt;Artemia&lt;/i&gt; cysts as well as cysts from Argentina, Australia, Brazil, Canada, France, Italy, the People' s Republic of China, the Philippines and the USA. Hatching rate, percentage and efficiency vary considerably from one cyst source to another. These hatching criteria are, however, not strainspecific since significant variation is found among cyst batches from the same geographical origin. The limitations of the "hatching efficiency" concept are discussed and a new criterion "hatching output", i.e. the biomass of nauplii expressed in mg dry weight produced per gram cyst product, is proposed for evaluation of the hatching quality of &lt;i&gt;Artemia&lt;/i&gt; cyst brands. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Efficiency; Hatching; Artemia.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3399

Problems in meiofauna energy-flow studies
Provedor de dados: 27
Autores: Herman, P.M.J.; Vranken, G.; Heip, C.H.R.
The direct estimation of energy flow through marine meiobenthic populations poses several difficulties, mainly relating to sampling problems. The usefulness of some indirect estimation methods is discussed. Direct production estimates and respiration measurements for three brackish water crustacean populations are given, indicating a relative constant proportion between population production and respiration.The production: assimilation ratio for these populations fluctuates between 0.3 and 0.4. This is contrasted to literature data revealing much higher production: assimilation ratios as determined in the laboratory for nematode populations. Using data on laboratory cultures of the nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt; some factors that can...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy flow; Meiobenthos.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3265

Copepod feeding in the Westerschelde and the Gironde
Provedor de dados: 27
Autores: Tackx, M.; Irigoien, X.; Daro, N.; Castel, J.; Zhu, L.; Zhang, X.; Nijs, J.
As in most European estuaries, the mesoplankton of the Westerschelde and the Gironde is dominated by calanoid copepods. In the Westerschelde, &lt;i&gt;Eurytemora affinis&lt;/i&gt; dominates the brackish water area between station 7 and 10 in winter and spring while &lt;i&gt;Acartia tonsa&lt;/i&gt; is dominant in summer. Maximum abundance of &lt;i&gt;A. tonsa&lt;/i&gt; is located slightly more seawards than that of &lt;i&gt;E. affinis&lt;/i&gt;. &lt;i&gt;Acartia bifilosa&lt;/i&gt; occurs in winter and spring in lower abundances than &lt;i&gt;A. tonsa&lt;/i&gt; and its maximum abundance is located between the brackish and the marine area. In the Gironde, &lt;i&gt;E. affinis&lt;/i&gt; dominates in winter and spring between station J and K, with its maximum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acartia (Acanthacartia) bifilosa (Giesbrecht; 1881 Acartia (Acanthacartia) tonsa Dana; 1849 Eurytemora affinis.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2631

Mathematical model of the nitrogen cycle in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Pichot, G.; Runfola, Y.
The nitrogen cycle between dissolved inorganic and organic matter, phytoplankton, zooplankton, non living particulate organic matter, and sediments is studied in the ecosystem formed by the Southern Bight of the North Sea.  A consistent pattern of mean annual fluxes of nitrogen based on the primary production and the zooplankton grazing is set up. A mathematical model describing the dynamic behaviour of nutrients, phytoplankton, zooplankton and dissolved organic matter is proposed. The results of the simulation fairly well fit the recent observations made in the frame of the Math. Model Sea Research Programme.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; North Sea; Southern Bight.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3535

Search for beneficial bacterial strains for turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.) larviculture
Provedor de dados: 27
Autores: Huys, L.; Dhert, P.; Robles, R.; Ollevier, F.P.; Sorgeloos, P.; Swings, J.
The aerobic bacterial flora in the gut of turbot larvae and their influence on larval survival was examined. Two turbot experiments were run with six replicates each time. Large variation, from 0% up to 44%, was observed in the survival percentage of turbot larvae. There was no correlation between the number of bacteria present in the gut of turbot larvae and the larval survival rate. During both experiments, all replicates followed nearly the same rate of bacterial development in the gut of turbot larvae going from circa 10&lt;sup&gt;2&lt;/sup&gt; CFU larva&lt;sup&gt;-1&lt;/sup&gt; just before first feeding at day 3 post hatch to 10&lt;sup&gt;5&lt;/sup&gt; CFU larva&lt;sup&gt;-1&lt;/sup&gt; at day 9 post hatch.In total, 127 bacterial isolates from 12...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerobic bacteria; Aquaculture; Commensals; Digestive system; Fish culture; Fish larvae; Gastrointestinal tract; Microorganisms; Rearing; Scophthalmus maximus; Survival; Bacteria; Scophthalmus maximus; Vibrio mediterranei.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5720

Seasonal, neap-spring and tidal variation of cohesive sediment concentration in the Scheldt estuary, Belgium
Provedor de dados: 27
Autores: Fettweis, M.; Sas, M.; Monbaliu, J.
The cohesive sediment transport in tidal rivers and estuaries is determined by the river discharge, the morphology, the salinity, temperature and particulate gradients, the deposition and erosion processes, the effective settling velocity of mud particles and by the physico-chemical and biological processes. The combination of these processes ensures that mud concentration varies on different time-scales ranging from seconds to seasons. Based on a long-term measurement campaign at Prosperpolder (Scheldt Estuary, Belgium), a detailed analysis of mud concentration, salinity, temperature and freshwater discharge with regard to the various involved time-scales is presented. The measurements at Prosperpolder were carried out between September 1992 and December...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2948

Numerical data about present day sediment dynamics on the Flemish Banks (Southern Bight, North Sea)
Provedor de dados: 27
Autores: De Moor, G.
The paper analyses present day residual morpho-dynamics and sediment dynamics on the Kwintebank, partly on ground of volumetric monitoring and partly of visual bank profile comparison, departing from geomorphological techniques, requiring sequential detailed bathymetric profiling, high precision navigation and positioning, and profile normalization, uniformization and equalization. It aims at a quantified approach of shape and location change and of sediment migration problems. It presents numerical data about volumetric evolution trends on the bank and advances a dynamical subdivision of the bank and the existence of different sand transportation mechanisms.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2823

Increased docosahexaenoic acid levels in total and polar lipid of European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) postlarvae fed vegetable or animal phospholipids
Provedor de dados: 27
Autores: Geurden, I.; Coutteau, P.; Sorgeloos, P.
A 6-week feeding trial was conducted with 44d-old European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt; L.) in order to examine the effect of various dietary phospholipid (PL) sources on the incorporation of n-3 highly unsaturated fatty acids (HUFA) in tissue lipids. From weaning onwards the fish received diets prepared by coating different lipid fractions (7.5% diet) on an extruded basal diet (92.5% diet). The two PL-free control diets contained 0.5 and 2% of an emulsifier blend, respectively. Seven other diets contained 2% PL, differing by their purity and origin (vegetable or animal). All diets were rendered isolipidic by the addition of hydrogenated coconut oil. Feeding the PL-supplemented diets, except the diet containing hydrolyzed soybean PL...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acids Fish culture Lipids Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2953

Mercury contamination of Belgian and Peruvian Cetacea
Provedor de dados: 27
Autores: Joiris, C.R.; Bossicart, M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Mercury Cetacea [whales; Dolphins and porpoises] ANE; Belgium ISE; Peru.
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/274472.pdf

Production and application of on-grown &lt;i&gt;Artemia&lt;/i&gt; in freshwater ornamental fish farm
Provedor de dados: 27
Autores: Lim, L.C.; Soh, A.; Dhert, P.; Sorgeloos, P.
This paper describes a pilot culture system for the production of on-grown &lt;i&gt;Artemia&lt;/i&gt; in freshwater ornamental fish farms. The system had 21 culture units, each consisting essentially of three components: an oval-shaped raceway, an air-water lift system and two waste collectors. Using artificial seawater at 20 ppt for culture and at a mean production rate of 3 kg/m&lt;sup&gt;3&lt;/sup&gt; of water in a 12-day cycle, the system had a production capacity of 8 metric tons of on- grown &lt;i&gt;Artemia&lt;/i&gt; a year. Biochemical analyses were preformed to evaluate the nutritional value of the on-grown &lt;i&gt;Artemia&lt;/i&gt; against three conventional live feeds, viz. live &lt;i&gt;Artemia&lt;/i&gt; nauplii, live &lt;i&gt;Moina&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture economics; Aquaculture techniques; Biochemical composition; Diets; Fish culture; Food organisms; Moina; Nutritive value; Ornamental fish; Artemia.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8491

On the importance of &lt;i&gt;Protohydra leuckarti&lt;/i&gt; as a predator of meiobenthic populations
Provedor de dados: 27
Autores: Heip, C.H.R.; Smol, N.
The predator-prey system between the polyp &lt;i&gt;Protohydra leuckarti&lt;/i&gt; and the harpacticoid copepod &lt;i&gt;Tachidius discipes&lt;/i&gt; is investigated using the results of a 3 year field survey and laboratory experiments involving the cultivation of the species. In the field a close relationship between numbers of predator and prey was observed. The possible influence of environmental factors on this relationship is discussed.  A number of mathematical models is compared to investigate the possibility of realistic description of the system. It is concluded that, even during relatively long time intervals, the number of prey can be predicted from the reproductive potential of the prey on the one hand and the rate of predation and predator...
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3534

Copepod production in the southern Benguela system
Provedor de dados: 27
Autores: Hutchings, L.; Verheye, H.M.; Mitchell-Innes, B.A.; Peterson, W.T.; Huggett, J.A.; Painting, S.J.
Several methods have been used to indirectly estimate copepod production in the southern Benguela region, based on field sampling of copepod stages and laboratory measurements of growth and development rates under variable food and temperature regimes. Estimates of production have steadily increased from 11 gC m&lt;sup&gt;-2&lt;/sup&gt; y&lt;sup&gt;-1&lt;/sup&gt; in 1979 to 80 gC m&lt;sup&gt;-2&lt;/sup&gt; y&lt;sup&gt;-1&lt;/sup&gt; in 1987. Since 1988, extensive measurements of copepod egg production and moulting rates of &lt;em&gt;Calanus agulhensis&lt;/em&gt; at sea during hydro-acoustic fisheries surveys over the south and west coasts of South Africa in November have provided more direct estimates of copepod production. Daily Mean Production: Mean...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5547

Note sur deux holothuries nouvelles pour la faune belge
Provedor de dados: 27
Autores: Massin, C.
&lt;i&gt;Aslia lefevrei&lt;/i&gt; (Barrois, 1882) and &lt;i&gt;Neopentadactyla mixta&lt;/i&gt; (Oestergren, 1898) are mentioned for the first time along the Belgian coast. Both species are described and their spicules figured. Their distribution is shortly discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Aslia lefevrei Neopentadactyla mixta [Gravel secucumber] ANE; Belgium.
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/303631.pdf

State of the art in larviculture of fish and shellfish
Provedor de dados: 27
Autores: Sorgeloos, P.; Lavens, P.; Léger, P.; Tackaert, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2897

Taxonomic observations on &lt;i&gt;Hypoglossum&lt;/i&gt; (Delesseriaceae, Rhodophyta) in the Indian Ocean and Malayan region, including the description of two new species
Provedor de dados: 27
Autores: Wynne, M. J.; De Clerck, O.
Two new species of the genus &lt;i&gt;Hypoglossum&lt;/i&gt; Kützing (Delesseriaceae, Rhodophyta) are described: &lt;i&gt;H. androlamellare&lt;/i&gt; sp. nov. from Zanzibar Island, Tanzania, and &lt;i&gt;H. annae&lt;/i&gt; sp. nov. from the Malay Archipelago. The former is the first species of &lt;i&gt;Hypoglossum&lt;/i&gt; to be reported from Tanzania and is distinguished by a combination of its overall habit, the chevron-like arrangement of the spermatangial sori, and the non-participation of lateral pericentral cells in sporangium formation within the tetrasporangia sori. The latter species is based on the material identified by Weber-van Bosse as “&lt;i&gt;Hypoglossum spathulatum&lt;/i&gt; Kützing” ( [16] and [17] , as &lt;i&gt;Delesseria...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7764

International study on &lt;i&gt;Artemia&lt;/i&gt; : 13. A comparison of production data of 17 geographical strains of &lt;i&gt;Artemia&lt;/i&gt; in the St. Croix Artificial Upwelling-Mariculture System
Provedor de dados: 27
Autores: Tobias, W.J.; Sorgeloos, P.; Roels, O.A.; Sharfstein, B.A.
Seventeen geographical strains of &lt;i&gt;Artemia&lt;/i&gt; , 13 bisexual and 4 parthenogenetic, were cultured through sexual maturity to select a strain which gives the best production in the St. Croix Artificial Upwelling- Mariculture System. Individual strains were compared for survival, growth, and time to sexual maturity. Dry and ash weight were determined on 100 couples (bisexual) or 200 females (parthenogenetic) from each strain. Total biomass (dry weight) production per strain has also been determined. Five strains were compared for the percent protein content of sexually mature individuals. On the basis of the results obtained, the best strains for use in the St. Croix System are the bisexual &lt;i&gt;Artemia&lt;/i&gt; from Macau (Brazil), San...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3697

Expéditions antarctiques belges. Poissons récoltés par l'expédition d'été 1967
Provedor de dados: 27
Autores: Gosse, J.-P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pisces [Fish] PS; Antarctica.
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/294755.pdf

Progress of the taxonomic research on benthic marine algae (Chlorophyta, Phaeophyta and Rhodophyta) along the East African coast
Provedor de dados: 27
Autores: Coppejans, E.; De Clerck, O.; Leliaert, F.; Dargent, O.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/227397.pdf

The influence of a selected bacterial strain &lt;i&gt;Vibrio anguillarum&lt;/i&gt; TR27 on the growth rate of the rotifer, &lt;i&gt;Brachionus plicatilis&lt;/i&gt; in two culture conditions
Provedor de dados: 27
Autores: Shiri Harzevili, A.R.; Van Duffel, H.; Defoort, T.; Sorgeloos, P.; Swings, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachionus plicatilis; Vibrio anguillarum.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2612

Essai de bilan annuel du transfer de l'azote dans le Bassin de Chasse d'Ostende: 3. Recyclage de l'azote dans les sédiments
Provedor de dados: 27
Autores: Podamo, J.
A crude estimation of the fluxes associated with bacterial and physico-chemical transformations of nitrogen in the sediments of the Sluice-dock in Ostend is presented: 1. The annual sedimentation of organic nitrogen is estimated from sedimentation rate and organic nitrogen concentration of top sediments. 2. Ammonification rate is evaluated on the one hand from the shape of organic nitrogen profile in sediment, on the other hand from measurement of bacterial activity by means of HC&lt;sup&gt;14&lt;/sup&gt;O&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;-&lt;/sup&gt; incorporation. 3. Diffusion of ammonium towards basin water is calculated from the concentration gradient at the water-sediment interface.4. The shape of the ammonium concentration profile in interstitial...
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3487

Ecometabolism of a shallow marine lagoon at Ostend (Belgium): 5. General discussion
Provedor de dados: 27
Autores: Podamo, J.
The consumption and recycling rates measured at the various trophic levels are used for the assessment of an annual budget of biogenic elements cycling in the ecosystem. Furthermore, an attempt is made in the direction of simulation modeling.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3540

Occurrence of &lt;i&gt;Artemia&lt;/i&gt; in nature and its morphological development from nauplius to adult
Provedor de dados: 27
Autores: Sorgeloos, P.
The first written record of the existence of the brine shrimp only dates back to 1755 (Schlosser in Kuenen and Baas-Becking, 1938). Nonetheless this "filtering animal" was already known since much longer times by different ethnic groups who attributed a better salt production in the brine pools to the presence of &lt;i&gt;Artemia&lt;/i&gt; ; hence its popular names such as brineworm, Salztierchen, verme de sale, sóféreg, Bahar el dud, Fezzanwurm, etc. Despite the primitive optical equipment available at that time Schlosser's drawings were very detailed and rightly give the adult animal 11 pairs of thoracopods. Several other scientists, including Linnaeus (1758), later described adult &lt;i&gt;Artemia&lt;/i&gt; with only 10 thoracopods. This controversy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3555

Autoradiography as a tool in primary production research
Provedor de dados: 27
Autores: Mommaerts, J.-P.
Autoradiography of C-14 labelled phytoplankton collected onto a millipore filter allows the determination of the number of photosynthetically active cells in a water sample and thus gives useful information on the standing crop in primary production studies.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autoradiography; Methods; Primary production.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3462

Anatomy and taxonomy of some species of Polycystididae (Turbellaria, Kalyptorhynchia) from N. Atlantic and Mediterranean coastal areas
Provedor de dados: 27
Autores: Schockaert, E.R.; Karling, T.G.
&lt;i&gt;Acrorhynchides styliferus&lt;/i&gt; sp. n. from Norway and the British Isles and &lt;i&gt;Polycystis contorta&lt;/i&gt; sp. n. and &lt;i&gt;Typhlopolycystis coomansi&lt;/i&gt; sp. n. from Norway and the Mediterranean are described. Additional notes are given on the anatomy and distribution of &lt;i&gt;Paracrorhynchus bergensis&lt;/i&gt; Karling. &lt;i&gt;Polycystis groenlandica&lt;/i&gt; (Levinsen), &lt;i&gt;P. crocea&lt;/i&gt; (Fabricius) and &lt;i&gt;Typhlopolycystis mediterranea&lt;/i&gt; Brunet. The taxonomy of the species and the corresponding genera is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy Geographical distribution New species Taxonomy Acrorhynchides styliferus Paracrorhynchus bergensis Polycistis crocea Polycystididae Polycystis contorta Polycystis groenlandica Typhlopolycystis coomansi Typhlopolycystis mediterranea ANE; British Isles ASE; Mediterranean Water.
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3522

The distribution of Fe in the Antarctic Circumpolar Current
Provedor de dados: 27
Autores: Löscher, B.M.; de Jong, J.T.M.; de Baar, H.J.W.; Veth, C.; Dehairs, F.A.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10213

Preliminary results of the influence of organic matters on the growth of &lt;i&gt;Prorocentrum lima&lt;/i&gt;
Provedor de dados: 27
Autores: Sohet, K.; Schoemann, V.; Houvenaghel, G.
The growth of &lt;i&gt;Prorocentrum lima&lt;/i&gt;, a toxic algae producing okadaic acid, has been followed in culture media with a variety of organic enrichments obtained from soils and composts of different origins. Two strains were studied and did not respond in the same way to the enrichments. Each strain also responds differently to each type of enrichment. Compost extracts, rich in organic matters, induce faster growth (growth rate 0.07/day) than extracts of soils poor in organic matter (growth rate 0.016/day). Such findings may contribute to explain the mechanisms inducing or triggering bloom developments which occur in neritic and coastal waters where terrigenous run-off mostly influences the organic content of seawater.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2895

A bibliography on the effects of bottom fishing gear and harvesting techniques on benthic biota
Provedor de dados: 27
Autores: Redant, F.
The present bibliography covers the literature on the effects of seaweed, fish and shellfish harvesting techniques, ranging from digging and hand raking to dredging, hydraulic dredging and bottom trawling, on the sea bed, the zoobenthos and the phytobenthos.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Benthos; Bibliographies; Bottom trawling; Fishing gear.
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/129257.pdf

The harbour seal, &lt;i&gt;Phoca vitulina&lt;/i&gt;, in the Oosterschelde: decline and possibilities for recovery
Provedor de dados: 27
Autores: Mees, J.; Reijnders, P.J.H.
Within the timespan of a few decades, the harbour seal almost completely disappeared from the estuaries in the south-west of the Netherlands. In 1960 a population of around 350 animals still lived in the Oosterschelde and Westerschelde area. About a quarter of this population lived in the Oosterschelde. At present less than 17 animals can be regularly observed in the whole area. Human influences are responsible for the rapid decline of the population. Initially the high hunting pressure and later environmental pollution are the main causes. Loss of habitat and disturbance at the resting places are additional important factors. The Oosterschelde still is a suitable habitat for seals. A short term natural development of a viable population in the area is not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phoca vitulina (Linnaeus; 1758) [Harbour seal].
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2636

Studies on the ultrastructure of the genital organs in Proseriata (Turbellaria): I. &lt;i&gt;Cirrifera aculeata&lt;/i&gt; (Ax) (Coelogynoporidae)
Provedor de dados: 27
Autores: Martens, E.E.; Schockaert, E.R.
The genital organs in adult specimens of &lt;i&gt;Cirrifera aculeata&lt;/i&gt; have been studied by transmission electron microscopy. The male copulatory organ is of the conjuncta-duplex type provided with a spiny cirrus. The structure of the epithelia lining the different parts of the genital organs is described. The cirrus spines and the spines in the genital atrium are shown to be intracellular specializations. The structure and location of the cirrus spines in the Proseriata studied so far are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal reproductive organs Cirrifera aculeata (Ax; 1951) Proseriata.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3281

Révision de &lt;i&gt;Zanclites xenurus&lt;/i&gt;, téléostéen (Pisces, Tselfatiiformes) marin du Santonien (Crétacé supérieur) du Kansas (Etats-Unis) = Revision of &lt;i&gt;Zanclites xenurus&lt;/i&gt;, Santonian (Upper Cretaceous) marine teleost (Pisces, Tselfatiiformes) of Kansas (United States)
Provedor de dados: 27
Autores: Taverne, L.
The author studies the osteology of &lt;i&gt;Zanclites xenurus&lt;/i&gt;, a fossil from the marine Upper Cretaceous of Kansas. He redefines the genus, shows its autapomorphies, confirms its belonging to the Tselfatiiformes (=Bananogmiiformes) and discusses about its relationships within this taxon.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Teleostei Tselfatiiformes Zanclites xenurus USA; Kansas.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=969

Improved larval survival at metamorphosis of Asian seabass (&lt;i&gt;Lates calcarifer&lt;/i&gt;) using omega3-HUFA-enriched live food
Provedor de dados: 27
Autores: Dhert, P.; Lavens, P.; Duray, M.; Sorgeloos, P.
Asian seabass (&lt;i&gt;Lates calcarifer&lt;/i&gt;) larvae were fed &lt;i&gt;Brachionus&lt;/i&gt; cultured on &lt;i&gt;Chlorella&lt;/i&gt; and, as soon as ingestion was possible, different types of &lt;i&gt;Artemia&lt;/i&gt; , i.e., nauplii of the San Francisco Bay (SFB) strain, Great Salt Lake (GSL) strain or GSL nauplii that had been bioencapsulated with an emulsion containing high levels of the omega3-HUFAs (highly unsaturated fatty acids) 20:5 and 22:6. San Francisco Bay &lt;i&gt;Artemia&lt;/i&gt; with a good natural fatty acid profile and small body size could be offered earlier than the larger but HUFA-poor Great Salt Lake strain. The poor nutritional quality of the latter, however, could be corrected by enriching the nauplii with an omega3-HUFA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acids; Feeding experiments; Food additives; Food organisms; Metamorphosis; Nutritional requirements; Polyunsaturated fatty acids; Lates calcarifer.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3079

Aerial surveillance of operational oil pollution in Belgium's Maritime Zone of Interest
Provedor de dados: 27
Autores: Volckaert, F.A.M.J.; Kayens, G.; Schallier, R.; Jacques, T.G.
Belgium's Maritime Zone of Interest (BMZI), including the Belgian Territorial Sea, Belgian Continental Shelf, and Bonn Agreement Zone of Multilateral Responsibility, were regularly surveyed by remote-sensing aircraft for the presence of operational oil spills between 1991 and 1995. Simultaneously wind speed and direction were recorded; wave height was obtained from the literature. In total, 228 spills of various sizes, volumes and origins were analysed by means of univariate statistical analysis. We documented that the observed oil spills were generally elongate, narrow and thin, that spill dimensions were interrelated, and that wind speed and wave height affected these dimensions. A major fraction of the total variation however could be attributed to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerial surveys Airborne sensing Coastal waters Hydrodynamics Marine pollution Monitoring Oil pollution Oil slicks Oil spills Pollution control Pollution dispersion Pollution monitoring Remote sensing Statistical analysis Water pollution Wave height Waves Waves Wind speed Winds ANE; Belgium Belgium.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8480

Maritime boundaries: Canada vs. United States
Provedor de dados: 27
Autores: Cuyvers, L.
When President Harry S. Truman issued a proclamation in 1945 that claimed an exclusive right of the United States to exploit the resources of the seabed and subsoil of its continental shelf, he heralded a new era of national interest in the oceans. The American measure set a policy that was quickly followed by many other states of the world, and as a result, the exclusive jurisdiction of coastal states over the resources in their offshore continental shelves has become one of the generally settled issues of international law of the sea. Less clear, however, are the rules that govern the delineation of the boundaries on the shelf between adjacent and opposite states. Different interpretations of rather ambiguous rules has led to friction between several...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: International boundaries ANW; Canada ANW; USA INE; Canada; British Columbia INE; USA.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3606

The influence of competition and predation on production of meiobenthic copepods
Provedor de dados: 27
Autores: Heip, C.H.R.
An assemblage of meiobenthic copepods was monitored twice monthly between 1968 and 1976 in a shallow brackish water habitat. Four species dominated and accounted for nearly all the production. All species have only one or two generations per year and each peak has similar dynamic characteristics. Production is determined primarily by the number of generations, and it is suggested that competition and predation determine the life-history characteristics.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Competition; Predation; Copepoda [copepods].
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6999

The effect of dietary salt (NaCl) supplementation on the growth, survival and food conversion rate of African catfish (&lt;i&gt;Clarias gariepinus&lt;/i&gt; B.) larvae
Provedor de dados: 27
Autores: Zamal, H.; Maithya, J.; Pector, R.; Ollevier, F.P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2917

De vrijlevende mariene nematoden van de Spuikom
Provedor de dados: 27
Autores: Thielemans, L.; Verdonckt, M.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8022

&lt;i&gt;Dictyota adnata&lt;/i&gt; Zanardini (Phaeophyta, Dictyotales) a remarkable mangrove inhabiting species in Kenya
Provedor de dados: 27
Autores: Coppejans, E.
A prostrate &lt;i&gt;Dictyotaceae&lt;/i&gt; was collected on the sandy-silty mangrove substratum close to high tide level in Gazi Bay (Kenya). It appears to be the rarely observed &lt;i&gt;Dictyota adnata&lt;/i&gt; Zan., characterized by the prostrate growth form, marginal groups of rhizoids, marginal sori of tetraspores, high Cl/Cw and Ml/Mw ratios. According to these observations &lt;i&gt;D. adnata&lt;/i&gt; Auct. ("sensu Weber-van Bosse") is another taxon.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dictyota adnata ISW; Kenya.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3051

Five new species of the family Ceramonematidae (Nematoda: order Chromadorida) from South Africa
Provedor de dados: 27
Autores: Furstenberg, J.P.; Vincx, M.
Three new Ceramonema species, one new Dasynemoides species and one new Pterygonema species are described from South Africa. Ceramonema algoensis sp. nov. is characterised by more than 300 annules and the elongated cephalic capsule with an elevated lip region; C. africana sp. nov. by an elongated cloacal annule and a long cephalic capsule; and C. kromensis sp. nov. by the absence of vascuolisation and a relatively short cephalic capsule. Dasynemoides tenuis sp. nov. can be distinguished from all other known species of the genus by its slender body (a=118) and the large number of body annules (690). Pterygonema papenkuili sp. nov. is characterised by the shape of the spicules, which have a spine-like structure, and a large and rectangular gubernaculum.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marine nematodes; Systematics; Ceramonema; Dasynemoides; Pterygonema.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7254

Some aspects of respiration in &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Decleir, W.; Vos, J.
The most striking phenomenon in the physiology of &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; salina&lt;/i&gt; L. is the diapause phase under the form of a cyst in the gastrula stage. Thus for example, can dried cysts resist to extreme stress conditions, without affection of their hatchability after hydration. They withstand complete dehydration exception made for some traces of residual water (Whitaker, 1940); they resist to a temperature of 100°C for more than an hour (Hinton, 1954) , and can be kept at the absolute zero temperature for an indefinite period (Skoultchi and Morowitz 1964). Eventhough hydrated cysts are less tolerant of these "extravagant" conditions, they nevertheless are only slightly sensitive to anoxia for periods up to 5 months (Dutrieu,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3556

Observation d'une eau rouge dans le port d'Ostende
Provedor de dados: 27
Autores: Mommaerts, J.-P.; Mommaerts-Billiet, F.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal blooms Harbours ANE; Belgium; Oostende Harbour.
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/295164.pdf

Characterization of individual particles in the North Sea surface microlayer and underlying seawater: comparison with atmospheric particles
Provedor de dados: 27
Autores: Xhoffer, C.; Wouters, G.; Van Grieken, R.
Five pairs of North Sea bulk waters and their corresponding surface microlayer samples were investigated for their particulate matter content and chemically analyzed and characterized by electron probe X-ray microanalysis and laser microprobe mass analysis. Multivariate techniques as hierarchical and nonhierarchical clustering in association with principal component analysis was performed on a data set containing more than 3,000 individual particles. This classification procedure yielded eight different particle types. Differences in particle type abundances for the microlayer and bulk water were observed. They were apportioned to their most probable sources. The results were compared with atmospheric and riverine particle data. The domination of the major...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2909

International study on &lt;i&gt;Artemia&lt;/i&gt; : 41. Influence of culture conditions and specific diapause deactivation methods on the hatchability of &lt;i&gt;Artemia&lt;/i&gt; cysts produced in a standard culture system
Provedor de dados: 27
Autores: Lavens, P.; Tackaert, W.; Sorgeloos, P.
Using cyst material produced in an indoor cyst production system from 4 &lt;i&gt;Artemia&lt;/i&gt; strains belonging to the species &lt;i&gt;A. franciscana&lt;/i&gt; (San Francisco Bay, California, USA; Macau, Brazil; Great Salt Lake, Utah, USA) and &lt;i&gt;A. parthenogenetica&lt;/i&gt; (Lavalduc, France), different factors were studied that affect dormancy in brine shrimp cysts. Preliminary experiments under varying (a)biotic culture conditions revealed an interaction between environmental conditions and hatching characteristics. Results obtained under better-defined conditions demonstrated a significant positive correlation between the amount of food available to the adult &lt;i&gt;Artemia&lt;/i&gt; populations and the hatchability of their encysted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Diapause; Food availability; Hatching; Artemia; Artemia franciscana; Artemia parthenogenetica.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3227

Seasonal variations in faunal distribution and activity across the continental slope of the Goban Spur area (NE Atlantic)
Provedor de dados: 27
Autores: Flach, E.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/221006.pdf

The benthic food path
Provedor de dados: 27
Autores: Vincx, M.; Dewicke, A.; Fockedey, N.; Mees, J.; Steyaert, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos ANE; North Sea.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/276161.pdf

1971-1991: twenty years of marine ecology
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2862

Comparative karyology and scanning cytophotometric DNA measurements of Proseriata (Turbellaria): with phylogenetic conclusions
Provedor de dados: 27
Autores: Martens, P.M.; Curini-Galletti, M.C.; Van Oostveldt, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/276720.pdf

Phylogeny of the digonoporid Proseriata
Provedor de dados: 27
Autores: Martens, P.M.; Schockaert, E.R.
From a comparative study of the ultrastructure of the hard parts in the copulatory organ of the Proseriata, E. Martens (1984) concluded for the monocelidid genera she studied that in all except the genus &lt;i&gt;Archimonocelis&lt;/i&gt;, the spines and styles are basal lamina differentiations: the autapomorphy for the monophylum Monocelididae.&lt;i&gt;Archimonocelis&lt;/i&gt; has intracellular hard parts as in all other Proseriata, clearly the plesiomorphic condition. At the same time it was also found from a karyological viewpoint that there are arguments that &lt;i&gt;Archimonocelis&lt;/i&gt; does not belong to the Monocelididae at all.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Comparative studies; Taxonomy; Proseriata.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3147

Note on &lt;i&gt;Stoechospermum&lt;/i&gt; Kütz. (Dictyotales, Phaeophyta)
Provedor de dados: 27
Autores: De Clerck, O.; Coppejans, E.
Stoechospermum polypodioides (J.V.Lamour.) J.Agardh is found to be conspecific with S. marginatum (C.Agardh) Kutz. after examination of the type specimen. The anteriority of Dictyota polypodioides J.V.Lamour. on Zonaria marginata C.Agardh, results in S. marginatum to be a synonym of S. polypodioides. Additionally all taxa attributed to the genus Stoechospermum are typified.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dictyna; Phaeophyta; Stoechospermum.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/277136.pdf

Taxonomic notes on species of &lt;i&gt;Tisbe&lt;/i&gt; (Copepoda, Harpacticoida) from a Belgian sluice dock
Provedor de dados: 27
Autores: Bergmans, M.
&lt;i&gt;Tisbe furcata, T. gracilis, T. holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt; are reported from the Sluice Dock near Ostend (Flemish Coast). The latter three species are new to the Belgian fauna. A cross-breeding experiment between strains of &lt;i&gt;T. holothuriae&lt;/i&gt; from Ostend and Venice (Italy) conforms perfect interfertility and hybrid F&lt;sub&gt;1&lt;/sub&gt; heterosis. &lt;i&gt;T. furcata&lt;/i&gt;, the "stumbling block" of the genus, is described and an account is presented of the characteristics and ontogeny of its colour pattern.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater environment New records Shallow water Taxonomy Tisbe battagliai Tisbe furcata (Baird; 1837) Tisbe gracilis (T. Scott; 1895) Tisbe holothuriae Tisbe Lilljeborg; 1853 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3622

A handy method for measuring meiobenthic respiration
Provedor de dados: 27
Autores: Moens, T.; Vierstraete, A.; Vanhove, S.; Verbeke, M.; Vincx, M.
Our current understanding of meiofaunal respiration rates, and especially of the way they are influenced by changing abiotic factors, is still far from complete. Meiofaunal respiration is traditionally measured using Cartesian divers or related manometric techniques, but these are extremely time-consuming and labour-consuming. We have evaluated the use of Strathkelvin polarographic electrode model 1302 and the O&lt;sub&gt;2&lt;/sub&gt; monitor model 781 in determining the O&lt;sub&gt;2&lt;/sub&gt; consumption of meiofaunal animals. Respiration rates obtained in this way of the terrestrial nematode &lt;i&gt;Caenorhabditis elegans&lt;/i&gt; compared well with results obtained from Cartesian diver respirometry. Experiments with 3 estuarine nematode species...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3049

A new genus of the family Pontocyprididae (Crustacea, Ostracoda) from the Indian and Pacific Oceans, with the description of two new species
Provedor de dados: 27
Autores: Wouters, K.
A new pontocypridid genus, &lt;i&gt;Peripontocypris&lt;/i&gt; gen. nov. and two new species are described from the Maldive Islands, Papua New Guinea and from Easter Island. The new genus has a remarkable set of characters, which are unknown in other members of the family: six adductor muscle scars, a Y-shaped Zenker's organ and a large furca. Some other characters of the valves and the soft parts are reminiscent of different pontocypridid genera, and suggest a mosaic type of evolution. The affinities of &lt;i&gt;Peripontocypris&lt;/i&gt; with other genera, and its taxonomic position are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Marine crustaceans New genera New species Ostracoda Peripontocypris Pontocyprididae ISE; Chile; Easter I. ISEW; Papua New Guinea ISW; Maldive I.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/254780.pdf

Sequence stratigraphy and architecture on a ramp-type continental shelf: the Belgian Palaeogene
Provedor de dados: 27
Autores: Jacobs, P.; De Batist, M.
In Palaeogene times, the 'Southern Bight' of the North Sea functioned as an intracratonic, shallow-marine, siliciclastic basin and accumulated a few meters of gently dipping sediment packages. A fine-scale seismic-stratigraphical model for the Palaeogene was formulated on the basis of a dense, high-resolution reflection seismic grid. In total 13 major seismic-stratigraphical units were defined, based on geometry and seismic facies characteristics. The seismic stratigraphy has been complemented with the results of four cored wells near the Belgian coast, containing a nearly continuous, 200m thick sediment succession of Eocene age. Facies analysis of these cores suggest that part of these sediments were deposited on a muddy shelf and part in a delta...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palaeogene Stratigraphy ANE; Belgium; Belgian Continental Shelf (BCS).
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2986

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichtyan fishes. Part A. Selachii: 2c. Order: Carcharhiniformes. Families: Proscylliidae, Hemigaleidae, Pseudotriakidae, Leptochariidae and Carcharhinidae
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
The description of micro-teeth within the Carcharhiniformes is hereby completed by presentation of generic representatives for the remaining families Proscylliidae, Hemigaleidae, Pseudotriakidae, Leptochariidae and Carcharhinidae. Detailed descriptions of the tooth morphology are given, as well as SEM-photographs. The tooth morphology of the genera herein concerned is compared with those published of the other carcharhiniform families in two previous issues of this series, in order to elucidate the interrelationships within this shark order also from an odontological point of view. The dental histology for the carcharhiniform genera is commented on, and their dental vascular types are re-examined. The results are summarized in a differential diagnosis for...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/294443.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt; : 32. Combined effects of temperature and salinity on the survival of &lt;i&gt;Artemia&lt;/i&gt; of various geographical origin
Provedor de dados: 27
Autores: Vanhaecke, P.; Siddall, S.E.; Sorgeloos, P.
The brine shrimp inhabits geographically isolated biotopes with specific biotic and abiotic conditions. This has resulted in various geographical strains between which marked genetica, biological and chemical differentiation exists. The response of 13 different &lt;i&gt;Artemia&lt;/i&gt; strains to the combined effect of temperature and salinity has been studied. Experimental temperatures tested ranged from 18 to 34°C and salinities from 5 to 120 promille. Except for Chaplin Lake (Canada) &lt;i&gt;Artemia&lt;/i&gt; , all strains showed high survival over a wide range of salinities (35-110 promille). For all strains the common temperature optimum was between 20 and 25°C. Interaction between temperature and salinity was negligible or very limited....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salinity effects; Survival; Temperature effects; Artemia.
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/261924.pdf

Comparative ultrastructure of copulatory organs having a stylet in the Proseriata (Turbellaria)
Provedor de dados: 27
Autores: Martens, E.E.
The ultrastructure of male copulatory organs having a stylet has been studied in some genera of the Proseriata. Within the Monocelididae there was a variety of stylet-like hard structures. The stylet in &lt;i&gt;Monocelis fusca&lt;/i&gt; was a differentiation of the basement membrane of the epithelium lining a penis-like muscular papilla. The penis papilla in &lt;i&gt;Ectocotyla&lt;/i&gt;consisted of circular muscles surrounded by a thickened basement membrane and an epithelium. &lt;i&gt;Archilopsis sp.&lt;/i&gt; and &lt;i&gt;Archilina sp.&lt;/i&gt; with a duplex copulatory bulb, had a stylet within a spiny cirrus. The stylet structure in &lt;i&gt;Archilina sp.&lt;/i&gt; was composed of four long spines which were derivatives of the basement membrane....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal reproductive organs; Ultrastructure; Proseriata; Turbellaria [Flatworms].
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3247

Benthos of a sublittoral sandbank in the Southern Bight of the North Sea: general considerations
Provedor de dados: 27
Autores: Willems, K.A.; Vanosmael, C.; Claeys, D.; Vincx, M.; Heip, C.H.R.
The benthic fauna of the Kwinte Bank, a linear sandbank in the Belgian coastal waters of the North Sea, was sampled on ten stations in September 1978. This sandbank shows a linear gradient from fine sandy sediments in the south to coarser sandy sediments in the north as a result of the tidal current pattern in the region. The influence of this gradient on macro- and meiofauna was studied. Diversity of polychaetes and harpacticoid copepods is correlated with median grain size of the sand fraction, diversity of nematodes is not. The influence of station location and sediment characteristics on density of all major macrobenthic groups is very outspoken, and linear density trends are common. This is not true for meiofauna in general and nematodes and copepods...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Sand banks ANE; Belgium; Flemish Banks; Kwinte Bank ANE; North Sea; Southern Bight.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3393

La pollution dans le port d'Ostende et ses répercussions sur la réproduction de l'huître plate dans le Bassin de Chasse = La pollution dans le port d'Ostende et ses répercussions sur la réproduction de l'huître plate dans le Bassin de Chasse
Provedor de dados: 27
Autores: Persoone, G.
The oyster culture, flourishing along the Belgian coast at the beginning of the century, perished entirely in the course of two World Wars. In 1956, it was taken on again intensively in the Scour Basin of Ostend. If we consider the obtained results with the affination of Flat and Portuguese oyster, this 86 ha closed basin, is of an exceptional productivity. Essays on the understanding of the origin of calcified oysters, done from 1960 until 1966, turned out to be very promising and an integral oyster culture from the larvae up to the adult oyster could be observed. In any case the last few years, eventhough compared to before a normal emission of larvae of &lt;i&gt;Ostrea edulis&lt;/i&gt;, there has not been a fixation of the origin. Regular samples of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater pollution Harbours Oyster culture Reproduction Ostrea edulis Linnaeus; 1758 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3467

International study on &lt;i&gt;Artemia&lt;/i&gt;: LII. Incubation of &lt;i&gt;Artemia&lt;/i&gt; cyst samples at high temperature reveals mixed nature with &lt;i&gt;Artemia franciscana&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Triantaphyllidis, G.V.; Pilla, E.J.S.; Thomas, K.M.; Abatzopoulos, T.J.; Beardmore, J.A.; Sorgeloos, P.
We present evidence that incubation of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; encysted embryos (cysts) at high temperatures (36-37°C) suppresses hatching of cysts from a parthenogenetic population, while at the same time allowing cysts of the New World bisexual species (&lt;i&gt;A. fransiscana&lt;/i&gt;) to hatch. This approach is used to verify the presence of contaminating foreign material from the New World in natural cyst populations of Old World &lt;i&gt;A. parthenogenetica, A. sinica, A. urmiana&lt;/i&gt; and &lt;i&gt;A. tunisiana&lt;/i&gt;. We demonstrate that high temperature incubation can be routinely applied to cysts from natural &lt;i&gt;Artemia&lt;/i&gt; populations occurring adjacent to fish and shrimp hatcheries, to determine the extent and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Artemia franciscana.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2687

A simple test for quality evaluation of cultured fry of marine fish
Provedor de dados: 27
Autores: Dhert, P.; Lavens, P.; Sorgeloos, P.
A stress test is proposed for the evaluation of the physiological condition of fish larvae in nutritional studies. The test was used in a study of quantitative (n-3) highly unsaturated fatty acids (HUFA) requirements in larval &lt;i&gt;Lates calcarifer&lt;/i&gt; and &lt;i&gt;Siganus guttatus&lt;/i&gt;. It enabled to suggest fast intervention at reduced larval quality and allowed to prevent mass mortalities. The stress test offered valuable information for the quantification study of fatty acid requirements in marine fish larvae. In &lt;i&gt;Lates&lt;/i&gt; demands for fatty acids were detected in metamorphosis. In &lt;i&gt;Siganus&lt;/i&gt; on the other hand, the sensitivity of the larvae was considerably reduced after short (n-3) HUFA boosting of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Fry; Quality control; Tests.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2761

Evolution des populations bactériennes planktoniques dans le Bassin de Chasse d'Ostende (Belgique) en 1971 et 1972
Provedor de dados: 27
Autores: Joiris, C.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria Plankton Population dynamics ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3480

Toxicity of copper, mercury and lead to a marine nematode
Provedor de dados: 27
Autores: Vranken, G.; Heip, C.H.R.
Toxicity of copper, lead and mercury to the nematode &lt;i&gt;Diplolaimella&lt;/i&gt; spec 1 is studied. Mortality responses obtained demonstrate high resistance to heavy metals. Population growth parameters as the intrinsic rate of natural increase and net-reproductivity are significantly depressed at copper-concentrations which cause no juvenile mortality. The lowest concentrations tested caused significant inhibition of development rate in both sexes. For this particular nematode species suppression of fecundity and developmental inhibition are more reliable criteria, determining non-exceedable limits with regard to environmental safety. Our tests show that nematode productivity may be significantly depressed at copper levels found in some areas of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Copper; Lead; Mercury; Toxicity; Nematoda [Nematodes].
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3250

Spatial and temporal patterns of the zooplankton in the Westerschelde estuary
Provedor de dados: 27
Autores: Soetaert, K.; Van Rijswijk, P.
The invertebrate zooplankton fauna of the Westerschelde (Belgium and The Netherlands) was investigated during 2 yr by means of monthly samples along a salinity gradient. Copepods were usually the most abundant holoplanktonic metazoans except in the freshwater zone where Rotifera were most numerous. The combination of a classification technique and an ordination-regression technique proved to be a valuable tool for the analysis of such an extensive data set. The presence of 4 groups was established, representing spatially distinct populations but with temporally shifting boundaries. Few zooplankton species were truly estuarine in their distribution, but many were derived from nearby coastal waters. This intrusion of marine species started in spring,...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8467

Living in the twilight: estimating net phytoplankton growth in the Westerschelde estuary (The Netherlands) by means of an ecosystem model (MOSES)
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Kromkamp, J.
Net phytoplankton productivity in the Westerschelde, a relatively deep. highly turbid and eutrophic estuary in the Southwest Netherlands, was examined by means of a 13-compartment dynamic simulation model. The description of the light-Iimited primary production was based on the model of Eilers and Peeters (1988. &lt;i&gt;Ecol. Model.&lt;/i&gt;, 42, 185-198). This light limitation was parameterized to the different model compartments by integrating the Eilers-Peeters model over a day and over depth taking into account the morphology of the Westerschelde compartments, the daily fluctuating light regime and characteristics of the photosynthesis-Iight curves of the phytoplankton community. The availability of light to the phytoplankters limited primary...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8464

Projekt Zee eindverslag: 7. Inventaris van de fauna en flora = Projet Mer rapport final: 7. Inventaire de la faune et de la flore
Provedor de dados: 27
Autores: Nihoul, J.C.J.; De Coninck, L.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288146.pdf

Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the Scotia-Weddell Confluence area during November and December 1988
Provedor de dados: 27
Autores: Goeyens, L.; Sörensson, F.; Tréguer, P.; Morvan, J.; Panouse, M.; Dehairs, F.A.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/279127.pdf

The rediscovery of &lt;i&gt;Cyclopicina longifurcata&lt;/i&gt; (Scott) (Copepoda: Cyclopinidae) in deep water in the North Atlantic, with a key to genera of the subfamily Cyclopininae
Provedor de dados: 27
Autores: Huys, R.; Boxshall, G.
The marine cyclopoid, &lt;i&gt;Cyclopicina longifurcata&lt;/i&gt; (Scott) is redescribed on the basis of the holotype and a second female, recently collected in deep water in the North Atlantic off the Azores. &lt;i&gt;Cyclopicina&lt;/i&gt; is one of the most primitive cyclopoids known, displaying many of the extreme plesiomorphic character states in the family Cyclopinidae. A key to genera of the subfamily Cyclopininae is presented and three new genera, &lt;i&gt;Herbstina, Erythropolites&lt;/i&gt;, and &lt;i&gt;Glareolina&lt;/i&gt;, are established.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyclopicina longifurcata Scott; Cyclopininae.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7187

Trophic ecology of the family Artedidraconidae (Pisces: Osteichthyes) and its impact on the eastern Weddell Sea benthic system
Provedor de dados: 27
Autores: Olaso, I.; Rauschert, M.; De Broyer, C.
The family Artedidraconidae comprises small, endemic Antarctic fishes, known as plunderfish, mostly distributed in the High Antarctic region. To study the diet of these specialised benthic feeders, stomach contents of the 11 most abundant species in the eastern Weddell Sea were examined. Prey composition was identified to the lowest taxonomic level for peracarid crustaceans and polychaetes. Half of the food volume comprised 36 crustacean taxa (26 of which were amphipods). The other half was made up of 7 polychaete taxa and 8 other zoological groups. The diet of plunderfishes &lt;20 cm long was found to include about 70% peracarid crustaceans, 50% of which were amphipods, mainly gammarids; the rest of their diet was mostly sessile and motile polychaetes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphipoda [amphipods]; Artedidraconidae [barbled plunderfishes]; Polychaeta [Bristle worms].
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/273802.pdf

The description of &lt;i&gt;Monhystrella parelegantula&lt;/i&gt; (De Coninck) (Nematoda, Monhysteridae), a free-living nematode species new for the Belgian coastal fauna
Provedor de dados: 27
Autores: Vranken, G.; Vincx, M.; Thielemans, L.K.
&lt;i&gt;Monhystrella parelegantula&lt;/i&gt; (De Coninck,1943) Andrassy, 1981, a new nematode record for the Belgian coastal area, has been isolated from two brackish water lagoons, the Dievengat near Knokke and the Sluice Dock of Ostend. This paper presents the first detailed morphological and morphometric data for the different stages of the life cycle, including the rare males. The systematic position and the ecological importance of the species are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Taxonomy Monhysteridae Monhystrella parelegantula Nematoda [Nematodes] ANE; Belgium; Oostende Harbour; Sluice Dock Belgium; Knokke-Heist; Dievengat.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3391

Spatial community structure of the winter hyperbenthos of the Schelde estuary, the Netherlands, and the adjacent coastal waters
Provedor de dados: 27
Autores: Mees, J.; Hamerlynck, O.
A first assessment of the ecological importance of the hyperbenthic fauna in coastal and estuarine systems was made in December 1988 in a pilot study (41 stations) covering the Westerschelde and Oosterschelde estuaries, and part of the neighbouring shallow coastal area, the Voordelta. Multivariate analysis revealed three major gradients which could be divided into seven spatially defined hyperbenthic communities. Canonical Correspondence Analysis was applied to correlate these species assemblages with a number of environmental variables measured at each station. Species distributions in the Westerschelde appear to be primarily determined by a gradient involving salinity, turbidity and dissolved oxygen. Hyperbenthic animals, mainly the mysid...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2741

Maturation performance of &lt;i&gt;Penaeus vannamei&lt;/i&gt; co-fed &lt;i&gt;Artemia&lt;/i&gt; biomass preparations
Provedor de dados: 27
Autores: Naessens, E.; Lavens, P.; Gomez, L.; Browdy, C.L.; McGovern-Hopkins, K.; Spencer, A.W.; Kawahigashi, D.; Sorgeloos, P.
Few shrimp hatcheries successfully propagate captive broodstock on a commercial scale. Diets for acceptable maturation performance of &lt;i&gt;Penaeus vannamei&lt;/i&gt; have typically relied on the inclusion of marine polychaetes (bloodworm) from Panama or Maine, USA, which are expensive and are of unpredictable supply. Studies were therefore undertaken at experimental and commercial scale to replace or supplement the polychaetes by frozen ongrown &lt;i&gt;Artemia&lt;/i&gt; which were either non-enriched or bioencapsulated with specific boosters. In experiment 1 the control diet consisted of frozen squid only and was evaluated against broodstock diets where 60% of the squid was substituted by bloodworm or enriched &lt;i&gt;Artemia&lt;/i&gt; biomass....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass; Feeding experiments; Sexual maturity; Artemia; Penaeus vannamei.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2967

Two new species of &lt;i&gt;Mesochra&lt;/i&gt; Boeck, 1865 (Copepoda: Harpacticoida) from a coastal lagoon in Sinaloa State, Mexico
Provedor de dados: 27
Autores: Gomez Noguera, S.E.; Fiers, F.
Two new species of the genus &lt;i&gt;Mesochra, M. pacifica&lt;i&gt; n. sp. and&lt;/i&gt;M. pseudoparva&lt;/i&gt; n. sp. are described from Ensenada del Pabellón Lagoon (southeastern Gulf of California, Mexico). Both species are considered as most closely related to &lt;i&gt;M. parva&lt;/i&gt; Thomson 1946, although they share some features with &lt;i&gt;M. sewelli&lt;/i&gt; Lang 1948. A particular forked structure on the male P3 endopodite of &lt;i&gt;M. pseudoparva&lt;/i&gt; n. sp. was found and the homology of this structure is discussed. An updated key to the species in the genus is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Coastal lagoons Identification keys New species Shellfish Copepoda [copepods] Harpacticoida Mesochra pacifica Mesochra pseudoparva ISE; Mexico; California Gulf ISE; Mexico; Sinaloa.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303516.pdf

Three new anatomically remarkable Turbellaria Eukalyptorhynchia from the north American Pacific coast
Provedor de dados: 27
Autores: Schockaert, E.R.; Karling, T.G.
The heterogeneity of the turbellarian family Polycystididae is demonstrated by describing three new aberrant species of this family from the Pacific coast of USA. The new subfamily Duplacrorhynchinae is based on the new genera, &lt;i&gt;Duplacrorhynchus&lt;/i&gt; with two species and &lt;i&gt;Yaquinaia&lt;/i&gt; with one species. A further splitting up of the family appears to be inevitable in the future.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eukalyptorhynchia Turbellaria [Flatworms] INE; North Pacific coast.
Ano: 1970
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6704

Polychlorinated biphenyls in Barents and Greenland seas fish
Provedor de dados: 27
Autores: Ali, B.I.; Joiris, C.R.; Holsbeek, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6864

The spatial pattern of &lt;i&gt;Cyprideis torosa&lt;/i&gt; (Jones, 1850) (Crustacea: Ostracoda)
Provedor de dados: 27
Autores: Heip, C.H.R.
The spatial pattern of the ostracod &lt;i&gt;Cyprideis torosa&lt;/i&gt; (Jones. 1850) is aggregated and can be described by the negative binomial distribution. The fit of the observed distribution to the negative binomial is less well for the total number of females because females that are not carrying eggs tend to be independently distributed from both females carrying eggs and males. The aggregations are roughly circular with a radius of about 13 cm and may be themselves aggregated. A method to picture the aggregations is described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyprideis torosa.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3527

Preparation and use of &lt;i&gt;Artemia&lt;/i&gt; as food for shrimp and prawn larvae
Provedor de dados: 27
Autores: Dhont, J.; Lavens, P.; Sorgeloos, P.
The brine shrimp,&lt;i&gt;Artemia&lt;/i&gt; has played a significant role in the expansion of the commercial production of shrimp and prawn during the last decade. Being an off-the-shelf and easily usable live food,&lt;i&gt;Artemia&lt;/i&gt; is the main alternative for the natural diet of shrimp larvae. It appeared in the late 1970s that the nutritional value of &lt;i&gt;Artemia&lt;/i&gt;, especially for marine organisms, is not constant, but varies both geographically and temporally, causing unreliable outputs in marine larviculture. Through multidisciplinary studies in Japan and by the International Study on &lt;i&gt;Artemia&lt;/i&gt;, both the causes for nutritional variability in &lt;i&gt;Artemia&lt;/i&gt; and methods to improve poor-quality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2579

Les Bivalvia du Ledien (Eocene Moyen Supérieur) de la Belgique premiere note: &lt;i&gt; Palaeotaxodonta&lt;/i&gt;,&lt;i&gt; Cryptodonta&lt;/i&gt;, &lt;i&gt;Pteriomorphia&lt;/i&gt;
Provedor de dados: 27
Autores: Glibert, M.
This paper studies the &lt;i&gt;Palaeotaxodonta&lt;/i&gt;,&lt;i&gt;Cryptodonta&lt;/i&gt; and &lt;i&gt;Pteriomorphia&lt;/i&gt; (Bivalvia, Mollusca) from the Ledian (Upper Middle Eocene) of Belgium. The taxa are classified according to the « Treatise on Invertebrate Paleontology » (Part N, Vols.1 and 3, Mollusca 6, Bivalvia) and a synonymy is given. Stratigraphical and locality detailes are provided for each species, but these are mainly restricted to Belgian occurrences in the Ledian and strata immediately above and below it. Poorly known species are redescribed and figured and their nomenclatures revised. The catalogue numbers of all the figured and referred specimens are included. An alphabetically arranged list of localities has also been compiled....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eocene Bivalvia Mollusca [Molluscs] Pteriomorphia Belgium; Brussels.
Ano: 1975
URL: http://www.vliz.be/imisdocs/publications/276450.pdf

Scanning electron microscope studies on some species of the centric diatom genera &lt;i&gt;Thalassiosira&lt;/i&gt; and &lt;i&gt;Coscinodiscus&lt;/i&gt;
Provedor de dados: 27
Autores: Somers, D.
By means of a scanning electron microscope, the submicroscopic structure of four &lt;i&gt;Thalassiosira&lt;/i&gt; species and two &lt;i&gt;Coscinodiscus&lt;/i&gt; species is studied. Five of these taxa are more or less similar in the arrangement of the areoles; the sixth one is aberrant. Besides the description of each species and the description of the submicroscopic structure of the auxospore of &lt;i&gt;Thalassiosira nordenskiöldii&lt;/i&gt;, a classification is given of the six taxa studied.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diatoms; Electron microscopy; Microscopy; Coscinodiscus; Thalassiosira.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3457

Meiobenthos of a sublittoral sandbank in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Willems, K.A.; Vincx, M.; Claeys, D.; Vanosmael, C.; Heip, C.H.R.
The meiofauna of a subtidal linear sandbank, the Kwinte Bank, in the Belgian coastal waters of the North Sea was analysed, with particular reference to the nematodes and harpacticoids. Nematodes are evenly spread over the whole sandbank but species differ. Diversity is very high (on average 3.8 bit /ind.) and 136 species were identified. Density on the contrary is low (on average 384 ind./10 cm²). Three species groups can be distinguished which are correlated with sediment characteristics. All trophic groups of nematodes are equally distributed within the sediment. Copepods are both more numerous and more diverse in the coarser sediments of the northern side of the sandbank. One cyclopoid and 65 harpacticoid species were identified with an average...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos Sand banks Harpacticoida Nematoda [Nematodes] ANE; Belgium; Flemish Banks; Kwinte Bank ANE; North Sea; Southern Bight.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3394

Ultrastructure and organisation of the proboscis epithelia in &lt;i&gt;Cicerina remanei&lt;/i&gt; Meixner, 1928. (Turbellaria, Eukalyptorhynchia)
Provedor de dados: 27
Autores: De Vocht, A.J.-P.; Schockaert, E.R.
Ultrastructural data on the proboscis epithelia of Eukalyptorhynchia have been given by Rieger and Sterrer (1975) for Bertiliellidae, by Doe (1976) for Gnathorhynchidae, by Reuter (1975) and Schockaert and Bedini (1977) for Polycystididae. Only the latter authors dealt with the overall organization of the epithelia in the proboscis, and this for &lt;i&gt;Polycystis naegelii&lt;/i&gt;. The anatomy of the proboscis is indeed an important element in the taxonomy of the Eukalyptorhynchia. It is to be expected that the ultrastructure will provide further clues to indicate phylogenetic relationships between the major taxa in Eukalyptorhynchia when more data become available. In view of further comparative studies on the ultrastructure of the proboscis of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomical structures Comparative studies Epithelia Taxonomy Ultrastructure Cicerina remanei Meixner; 1928.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3132

Observations ornithologiques réalisées dans le sud-est de la Mer du Nord entre juin 1971 et janvier 1972: 1. Oiseaux marins
Provedor de dados: 27
Autores: Joiris, C.
During three pelagic cruises in the southeastern part of the North-Sea, the author spent a total of 82 hours ( in 41 days) watching birds (Joiris, 1972). Sea bird watching involves only few birds, belonging to non-marine species. Nevertheless, it is a method which enables to point out periods of movement for given populations.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marine birds Migratory species ANE; North Sea; Southern Bight.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3477

Studies on the Cylindropsyllidae (Copepoda, Harpacticoida): 2. A revision of the genus &lt;i&gt;Cylindropsyllus&lt;/i&gt; Brady
Provedor de dados: 27
Autores: Huys, R.
The cylindropsyllid type genus Cylindropsyllus Brady, 1880 is revised and a new species C. kunzi sp.n. from the North Sea is added. Of the other species a detailed redescription and figures are given, distribution records are compiled and some phylogenetic data are presented. It is suggested that Cylindropsyllus and the monotypic Cylinula Coull, 1971 are sister groups, the latter being the apomorphous lineage because of the unisegmented mandibular palp and the prehensile endopodite P1. Cylindropsyllus sp. Monard, 1935 cannot be assigned to any known species. An amended diagnosis of the genus Cylindropsyllus and a comparison with Cylinula are presented.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7056

International study on &lt;i&gt;Artemia&lt;/i&gt; : 15. Effect of light intensity on hatching rate of &lt;i&gt;Artemia&lt;/i&gt; cysts from different geographical origin
Provedor de dados: 27
Autores: Vanhaecke, P.; Cooreman, A.; Sorgeloos, P.
&lt;i&gt;Artemia cysts&lt;/i&gt; from 4 geographical strains were incubated under standard hatching rates increased with increasing light intensities. The light-intensity threshold at which the maximal hatching rate was attained, varied from strain to strain. Differences in light sensitivity between the &lt;i&gt;Artemia&lt;/i&gt; strains studied can, at least partly, be attributed to variation in chorion characteristics. The hypothesis is discussed that light might act as a diapause inhibitor in marine and freshwater branchiopods.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Hatching; Light intensity; Artemia.
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/262164.pdf

Study of inorganic ammonium compounds in individual marine aerosol particles by laser microprobe mass spectrometry
Provedor de dados: 27
Autores: Otten, P.; Bruynseels, F.; Van Grieken, R.
Ammonia is important in the atmosphere because it neutralizes acidic species. The relative importance of different inorganic ammonium compounds (chloride, nitrate and sulfate) in marine air chemistry was studied by single-particle characterization with the laser microprobe mass analyser. Standard aerosols were generated as a reference for compound identification, based on the fingerprint spectra obtained, and calculation of the relative sensitivity achieved for different ions in a marine aerosol matrix. The relative sensitivity for ammonium was low. Aerosol samples were collected in the Southern Bight of the North Sea under different meteorological conditions and examined for their ammonium compounds. Samples collected during an inversion period with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Absorption spectroscopy; Aerosols; Ammonium compounds.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3256

The predictability of biological populations and communities: an example from the meiobenthos
Provedor de dados: 27
Autores: Herman, P.M.J.; Heip, C.H.R.
The predictability of temporal changes was analysed in the population density of three meiobenthic copepod species, and for three parameters characterizing this community. For &lt;i&gt;Paranychocamptus nanus&lt;/i&gt; and &lt;i&gt;Tachidius discipes&lt;/i&gt; a large part of the variation in time scales longer than 1 year is explainable as cyclic factors. In &lt;i&gt;P. nanus&lt;/i&gt; clear cycles with periods of 2 years and 1.5 years were found. These cyclic factors can be extrapolated for prediction. In &lt;i&gt;Canuella perplexa&lt;/i&gt; almost all the variation was due to unpredictable long-term drift. Community parameters are generally better predicted than population densities. In our data set total density of the copepods was the best parameter to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos; Monitoring; Prediction; Time series; Copepoda [copepods].
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3238

On the anatomy of &lt;i&gt;Gnosonesima mediterranea&lt;/i&gt; sp.n. from Corsica (Plathelminthes, Lecithoepitheliata) with special emphasis on its genito-intestinal connections
Provedor de dados: 27
Autores: Martens, P.M.; Schockaert, E.R.
&lt;i&gt;Gnosonesima mediterranea&lt;/i&gt; sp. n. from algae in the Bay of Calvi (Corsica) is described. It is the first record of a &lt;i&gt;Gnosonesima&lt;/i&gt;-species from the Mediterranean. The pharynx and the genital organs are extensively described at the light microscopic level from 1 µm Epon sections. The male "accessory organ" is revealed to be an andro-genito-intestinal connection with a high similarity with the female genito-intestinal connection. The taxonomic position of the Lecithoepitheliata is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy Distribution records New records New species Gnosonesima mediterranea MED; France; Corsica; Calvi Bay.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6778

International study on &lt;i&gt;Artemia&lt;/i&gt;: 4. The biometrics of &lt;i&gt;Artemia&lt;/i&gt; strains from different geographical origin
Provedor de dados: 27
Autores: Vanhaecke, P.; Sorgeloos, P.
The cosmopolitan distribution of brine shrimp in coastal lagoons and island salt lakes has resulted in numerous geographical strains. In the framework of the characterization study of different &lt;i&gt;Artemia&lt;/i&gt; strains which is the objective of the laboratories participating into the "International Study on &lt;i&gt;Artemia&lt;/i&gt; " the following biometrical parameters have been studied by the &lt;i&gt;Artemia&lt;/i&gt; Reference Center:- volume and diameter of hydrated, untreated and decapsulated cysts; - chorion thickness; - length, dry weight and ash free weight of freshly hatched nauplii; - volume index of freshly hatched nauplii. For all parameters, important differences were observed between the &lt;i&gt;Artemia&lt;/i&gt; strains...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3700

Comparison of brackish water plankton assemblages of identical salinity ranges in an estuarine tidal (Westerschelde) and stagnant (Lake Veere) environment (S.W.-Netherlands): 1. Phytoplankton
Provedor de dados: 27
Autores: Bakker, C.; De Pauw, N.
Species composition, abundance and seasonal distribution of the phytoplankton of brackish water ecosystems depend not only on salinity but on several other environmental factors too. In stagnant brackish waters (Lake Veere) the easily established stability of the water masses proved to be an ecological masterfactor in relation to phytoplankton development, equaling salinity in importance. In tidal brackish waters (Westerschelde estuary) turbulence acts as an ecological masterfactor in relation to phytoplankton development, dominating salinity in importance within the chosen salinity ranges.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackish water Distribution Ecosystems Phytoplankton Salinity ANE; Netherlands; Lake Veere.
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3488

The life cycle of &lt;i&gt;Anguillicola crassus&lt;/i&gt;
Provedor de dados: 27
Autores: De Charleroy, D.; Grisez, L.; Thomas, K.; Belpaire, C.; Ollevier, F.P.
For some years now the parasitic swim bladder nematode &lt;i&gt;Anguillicola crassus&lt;/i&gt; of the European eel &lt;i&gt;Anguilla anguilla&lt;/i&gt; L., has been reported from several European countries. The entire life history of this parasite has recently been elucidated in our laboratory. Young larvae leave the swim bladder of the host via the pneumatic duct and reach the water through the digestive tract. They are ingested by small copepods (Cyclopoida), which act as intermediate hosts. Larvae remain in the hemocoel until the copepods are eaten by the final host, the European eel. Larvae penetrate through the intestinal wall and reach the swim bladder where they develop into adults. When infected copepods are eaten by other small fish, such as carp...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological vectors; Disease transmission; Fish diseases; Food chains; Freshwater fish; Hosts; Life cycle; Parasites; Parasitic diseases; Predation; Predators; Swim bladder; Anguillicola crassus.
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/3074.pdf

The fate of stable pollutants: heavy metals and organochlorines
Provedor de dados: 27
Autores: Bouquegneau, J.-M.; Joiris, C.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6895

Annual dynamics of meiobenthic communities in the Ligurian Sea (northwestern Mediterranean): preliminary results
Provedor de dados: 27
Autores: Danovaro, R.; Mees, J.; Vincx, M.
The dynamics of meiobenthic community were investigated on sandy sediments of the pilot station of Zoagli (Ligurian Sea) between January 1991 and January 1992. Meiofaunal densities ranged between 447 (April) and 3421 (July) ind./10 cm2. Nematodes were the dominant group comprising on the average 75 % of the total fauna. Harpacticoid copepods were the second most abundant group (from 1.7 to 55.3 %) followed by Turbellaria (on the average 5.5 % of total fauna) and Polychaeta (on average 1.2 % of total fauna). The importance of several environmental parameters (such as total organic matter, grain size and RPD depth) in structuring the meiobenthic community is discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/276894.pdf

An action spectrum for light-induced hatching of &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Van der Linden, A.; Blust, R.; Cuypers, K.; Thoeye, C.; Bernaerts, F.
The influence of light on the hatching induction of &lt;i&gt;Artemia&lt;/i&gt; cysts is well known. Our objective was to determine the absorption characteristics of the responsible photoreceptor by action spectroscopy. The results suggest the involvement of a haemopigment located in the gastrula. Haematin, the haemopigment of the cyst shell is demonstrated to have a light-screening function towards the photoreceptor.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3213

Sedimentanalyse van stations in de Westerschelde
Provedor de dados: 27
Autores: Herman, R.; Heip, C.H.R.; Van Damme, D.; Braeckman, A.; Van Gansbeke, D.
Tipo: Info:eu-repo/semantics/book
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7004

Oxygen bioavailability and haemoglobins in the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: De Wachter, B.; Blust, R.; Decleir, W.
Bioavailability of oxygen for the saline-water invertebrate &lt;i&gt;Artemia franciscana&lt;/i&gt; was studied, since both oxygen concentration and oxygen diffusion rate change with salinity. Total haemoglobin concentration and the relative contribution of each of three haemoglobins was measured in specimens acclimated to different salinities and oxygen concentrations. Both haemoglobin concentration and contribution were influenced by salinity and the group observed (males, females with and females without eggs). Multiple regression analysis showed that total haemoglobin concentration was better correlated with oxygen concentration than oxygen partial pressure. The relative proportions of haemoglobins 1, 2 and 3 were better correlated with oxygen partial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2749

Residual sediment transport directions on a tidal sand bank: comparison of the "McLaren Model" with bedform analysis
Provedor de dados: 27
Autores: Lanckneus, J.; De Moor, G.; De Schaepmeester, G.; Meyus, I.; Spiers, V.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2714

&lt;i&gt;Dracograllus&lt;/i&gt; (Nematoda: Draconematinae) from Papua New Guinea, with descriptions of new species
Provedor de dados: 27
Autores: Decraemer, W.
Ten species of the nematode genus &lt;i&gt;Dracograllus&lt;/i&gt; Allen &amp; Noffsinger, 1977 have been found in marine meiofaunal samples from Madang Province, Papua New Guinea. Seven new species, &lt;i&gt;Dracograllus cornutus&lt;/i&gt; sp. n., &lt;i&gt;D. grootaerti&lt;/i&gt; sp. n., &lt;i&gt;D. laingensis&lt;/i&gt; sp. n., &lt;i&gt;D. minutus&lt;/i&gt; sp. n., &lt;i&gt;D. papuensis&lt;/i&gt; sp. n., &lt;i&gt;D. pusillus&lt;/i&gt; sp. n. and &lt;i&gt;D. spinosus&lt;/i&gt; sp. n. are described. Additional information is given on &lt;i&gt;D. demani&lt;/i&gt; Allen &amp; Noffsinger, 1977 and &lt;i&gt;D. eira&lt;/i&gt; (Inglis, 1968), including data on juvenile stages. The genus &lt;i&gt;Dracotoramonema&lt;/i&gt; Allen &amp; Noffsinger, 1977 is considered...
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/76072.pdf

A note on the life-span of r-strategists
Provedor de dados: 27
Autores: Heip, C.H.R.
The idea is presented that the short life-span of &lt;i&gt;r&lt;/i&gt;-strategists may in some cases be an adaptation to avoid predation. Evidence supporting this hypothesis is presented by examination of predation of the polyp &lt;i&gt;Protohydra leuckarti&lt;/i&gt; on harpacticoid copepods.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Longevity.
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3494

General aspects of the ecology and biogeography of &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Persoone, G.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autecology; Biogeography; Artemia.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/260376.pdf

Plankton size distributions and trophic relations before and after the construction of the storm-surge barrier in the Oosterschelde estuary
Provedor de dados: 27
Autores: Tackx, M.L.M.; Herman, P.M.J.; Van Rijswijk, P.; Vink, M.; Bakker, C.
Phytoplankton and zooplankton biomass distributions were calculated on a carbon basis for the inland part of the Oosterschelde, in the period before (1983), during (1984, 1986) and after (1987, 1988) the construction of the storm-surge barrier. In all years studied, both phytoplankton and zooplankton distributions are very irregular, and little consistent patterns emerge. The data were used to test the model of Sheldon et al. (1977). The observed standing stock ratios of zooplankton to phytoplankton agree with the model predictions in 1983, and are slightly higher during the period 1984-1987. In 1988, the model predictions are very different from the observed values, because of important changes in the zooplankton species abundance occurring in this year.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Particles; Particles; Particles; Plankton; Size distribution; Spectra; Zooplankton; Netherlands.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2675

&lt;i&gt;Adenopleurella&lt;/i&gt;, new genus, &lt;i&gt;Proceropes&lt;/i&gt;, new genus, &lt;i&gt;Sarsocletodes&lt;/i&gt; Wilson (ex Laophontidae), and &lt;i&gt;Miroslavia&lt;/i&gt; Apostolov (ex Cletodidae): reprensentatives of a new family (Copepoda: Harpacticoida)
Provedor de dados: 27
Autores: Huys, R.
A new family of harpacticoid copepods, Adenopleurellidae, is proposed to accommodate the genera &lt;i&gt;Adenopleurella&lt;/i&gt;, new genus, &lt;/i&gt;Sarsocletodes&lt;/i&gt; Wilson, &lt;i&gt;Miroslavia&lt;/i&gt; Apostolov, and &lt;i&gt;Proceropes&lt;/i&gt;, new genus. The genus &lt;i&gt;Sarsocletodes&lt;/i&gt; is removed from the Laophontidae T. Scott on the basis of the reduced nature of leg 1 which cannot be attributed to heterochronic (neotenic) events. &lt;i&gt;Sarsocletodes secundus&lt;/i&gt; Smirnov is placed in a new genus, &lt;i&gt;Proceropes&lt;/i&gt;, on account of the primitive P1 and P5, and is considered the most primitive member of the family. &lt;i&gt;Miroslavia longicaudata&lt;/i&gt; is excluded from the Cletodidae T. Scott and is most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adenopleurella Huys; 1990 Cletodidae Copepoda [copepods] Harpacticoida Laophontidae Miroslavia Proceropes Huys; 1990 Sarsocletodes typicus (G.O. Sars; 1920).
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7170

The impact of the Scheldt input on the trace metal distribution in the Belgian coastal area (results of 1981-1983 and 1995-1996)
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Elskens, I.; Van Ryssen, R.; Leermakers, M.
Offshore fluxes of Cu, Zn, Cd, Pb and Hg were calculated based on residual flow patterns and salinity gradients along the Belgian coast. The residual flow lines along the Belgian coast are more or less parallel to the coast except the area where the north-easterly flowing water mass coming from the Channel encounters the south-westerly-oriented Scheldt outflow, forming a residual hydrodynamical front. From the steady-state salinity pattern, diffusion coefficients perpendicular to the residual flow were deduced; they ranged from 21 to 108 m² s-¹ . Offshore fluxes of dissolved and particulate trace metals based on diffusive and mixing processes are calculated. The steady state profiles of dissolved metals show a dilution effect in the coastal waters,...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7055

The freeliving marine nemas of the Belgian coast: II. With general remarks on the structure and the system of nemas
Provedor de dados: 27
Autores: De Coninck, L.A.; Schuurmans Stekhoven Jr., J.H.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Animal morphology Taxonomy Nematoda [Nematodes] ANE; Belgium.
Ano: 1933
URL: http://www.vliz.be/imisdocs/publications/264496.pdf

Note additionnelle sur l'écologie des zones littorales du Sénégal
Provedor de dados: 27
Autores: Verschuren, J.
Some new ecological observations in the littoral area of Senegal are added to a previous and more detailed paper by the author. An aggravation of the marine pollution near Dakar is established. The Senegalese population is continuously respecting the bird fauna. In the national park "Basse Casamance" a large number of tree species has suffered, sometimes irreversibly, by drought during successive years. Near Dakar kites have completely eliminated vultures.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/303570.pdf

The stability of docosahexaenoic acid in two &lt;i&gt;Artemia&lt;/i&gt; species following enrichment and subsequent starvation
Provedor de dados: 27
Autores: Evjemo, J.O.; Coutteau, P.; Olsen, Y.; Sorgeloos, P.
Two &lt;i&gt;Artemia&lt;/i&gt; species (&lt;i&gt;Artemia franciscana&lt;/i&gt;, GSL strain and a population from &lt;i&gt;Artemia  sinica&lt;/i&gt;, ARC No. 1188) were enriched with two different emulsions containing high levels of docosahexaenoic acid (DHA) (23 and 44% of total fatty acids, respectively) in filtered seawater (30 ppt) at 28°C. After enrichment nauplii were starved for 72h at three different temperatures (6.1, 12.2 and 22°C). Following enrichment the DHA content and DHA/EPA ratio reached a maximum 41.2 and 42.8 mg g&lt;sup&gt;-1&lt;/sup&gt; dry weight and 1.88 and 2.09 in &lt;i&gt;A. franciscana&lt;/i&gt; and &lt;i&gt;A. sinica&lt;/i&gt;, respectively. During starvation at 12.2°C the DHA content in &lt;i&gt;A. franciscana&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding experiments; Starvation; Artemia.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2942

Etudes hydrobiologiques sur les eaux saumâtres de Belgique: V. Les eaux saumâtres de Nieuport. Période 1950-1951
Provedor de dados: 27
Autores: Van Meel, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydrobiology ANE; Belgium; Nieuwpoort.
Ano: 1963
URL: http://www.vliz.be/imisdocs/publications/290070.pdf

The use of lipid emulsions as carriers for essential fatty acids in bivalves: a test case with juvenile &lt;i&gt;Placopecten magellanicus&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Castell, J.D.; Ackman, R.G.; Sorgeloos, P.
Although information on bivalve nutrition is still very scarce, several studies have demonstrated the importance of lipids, in particular triglycerides, as a source of energy and essential fatty acids in the early life stages. Experimental diets used so far to study bivalve nutrition either heavily pollute the water or are too complex to prepare in a hatchery. The potential use of lipid emulsions as off-the-shelf supplements was evaluated through the analytical verification of the ingestion and incorporation of n-3 highly unsaturated fatty acids (HUFA) by the juvenile sea scallop &lt;i&gt;Placopecten magellanicus&lt;/i&gt; fed lipid emulsions of different fatty acid composition as a supplement to &lt;i&gt;Isochrysis sp.&lt;/i&gt; (clone T-Iso). The average...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emulsions; Fatty acids; Lipids; Placopecten magellanicus [sea scallop].
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/2934.pdf

A model of early diagenetic processes from the shelf to abyssal depths
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Middelburg, J.J.
We present a numerical model of sedimentary early diagenetic processes that includes oxic and anoxic mineralization. The model belongs to the new wave of early diagenesis models that account for depth-dependent bioturbation and porosity profiles; it can be used both for calculating steady-state conditions and transient simulation. It was developed to reproduce the cycling of carbon, oxygen, and nitrogen along the ocean margin; it resolves the sediment-depth profiles of carbon, oxygen, nitrate, ammonium, and other reduced substances. Organic carbon is modeled as two degradable fractions with different first-order degradation rates and nitrogen:carbon ratios, to account for the decreasing reactivity and N/C ratio of the organic matter with depth into the...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8408

The First International Conference on Oceanography (Brussels, 1853)
Provedor de dados: 27
Autores: Houvenaghel, G.
M. F. Maury, head of the U.S. Naval Observatory. started to compile meteorological and sea surface data from the logbooks. This allowed him, during the 1840's to expand knowledges in descriptive oceanography. Willing to extend the geographical coverage of his data bank and chartings, Maury wanted to involve merchant navy as well as ships from other nations. This led him to consider favourably projects of universal networks for meteorological data collection such as proposed by the Russian Kupffer in the early 1850's. Maury tried to establish such co-operation when British and US officials came together to uniformize their network. Maury did not succeed to bring the project at an international level. Instead, he only was allowed to call upon an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conferences; Historical account; Marine sciences; Oceanography; Belgium.
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/276694.pdf

De pollutie van de haven van Oostende en haar gevolgen op de reproductie van de platte oester (Ostrea edulis L.) in de Spuikom (extended abstract)
Provedor de dados: 27
Autores: Persoone, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7918

Comparison between high-resolution seismic and sequence stratigraphic approaches applied to the Upper Jurassic deposits of the Dover Strait area (Northern France)
Provedor de dados: 27
Autores: Mahieux, G.; Proust, J.-N.; Tessier, B.; De Batist, M.
This study is an attempt to interpret very high resolution seismic data, usually devoted to shallow marine surveys, in terms of very high resolution seismic and sequence stratigraphy at the scale of the reservoir. Seismic data are compared with outcrop-based observations in order to discuss the geometrical relationships between rock bodies, and the nature of the seismic reflections in terms of seismic facies related to type lithologies. Two high-resolution seismic surveys, using a sparker, were performed in the Dover Strait area some 100s of meters away from the Boulonnais coastal cliffs. The aim was to look to the 130 m-thick, mixed siliciclastic-carbonate deposits of Upper Jurassic age (Kimmeridgian-Tithonian) cropping out at the sea floor and to compare...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=311

Determination of fatty acid requirements during weaning and first ongrowing of marine fish using a standard diet
Provedor de dados: 27
Autores: Coutteau, P.
Although the requirements for highly unsaturated fatty acids (HUFA), primarily eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3), have been demonstrated for various species of marine fish, major controversies continue to exist over what constitutes the optimal dietary intake of fatty acids and the efficiency of various lipid classes in supplying essential fatty acids. Furthermore, fatty acid requirements have been determined primarily in larval stages using enriched live food and in juvenile fish using pelletized diets, whereas fatty acid requirements during and just after the critical period of weaning are poorly documented. This paper reports on the development of a standard diet that yielded acceptable growth of marine fish...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2926

New developments in the high density flow-through culturing of brine shrimp &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Lavens, P.; Baert, P.; De Meulemeester, A.; Van Ballaer, E.; Sorgeloos, P.
A closed culture system for the high density culturing of &lt;i&gt;Artemia spp.&lt;/i&gt; in 300-liter tanks using a new formula of artificial seawater and micronized waste products from agricultural crops as food is described. Culture conditions are greatly improved by applying a new filter technique and an electronic transparency meter which controls food distributions automatically. A total volume of 6,000 liters of culture water recirculated over a rotating biological contactor, a cross-flow sieve and a plate separator at a flow rate of 3000 liters per hour.Production yields obtained with this culture system, when extrapolated to a 1 m³ tank, indicate that 50 g of brine shrimp cysts can be converted into 20 kg of fresh (wet dry) pre-adult...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture systems; Brine shrimp culture; Recirculating systems; Artemia.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3232

Different benthic size-compartments and their relationship to sediment chemistry in the deep Eurasian Arctic Ocean
Provedor de dados: 27
Autores: Kröncke, I.; Vanreusel, A.; Vincx, M.; Wollenburg, J.; Mackensen, A.; Liebezeit, G.; Behrends, B.
During the Arctic Expedition ARK VIII/3 (August to September 1991) with &lt;i&gt;RV Polarstern&lt;/i&gt;, the macrofauna, meiofauna, Foraminifera, bacteria were sampled and sediment chemistry was determined at 13 stations along a transect from the Barents Sea slope across the deep Arctic Eurasian Basins towards the Lomonosov Ridge. Water depths ranged from 258 to 4427 m. In general, higher values for all benthic compartments as well as total organic carbon (TOC) and total hydrolysable amino acids (THAA) were recorded for the Barents Sea slope than for the deeper stations in the basins and the ridge slopes. The only significant correlation found was between macrofaunal abundance and depth. Bacterial and all faunal abundances as well as bacterial and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria; Foraminifera [hole bearers].
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/273306.pdf

Composition of individual aerosol particles above the Israelian Mediterranean coast during the summer time
Provedor de dados: 27
Autores: Ganor, E.; Levin, Z.; Van Grieken, R.
Aerosol particles were collected aboard a ship in Haifa and Tel Aviv, Israel, during the summer time. The aerosol particles (6170) were analyzed as individual particles and classified according to their chemical composition, size, number concentration per cubic centimeter and morphology. Most of the aerosol particles could be classified into four groups. The first contains gypsum from the sea and from industrial sources brought in by land breezes. A second group is characterized by continental aluminosilicate and quartz. A third group consists of sea salt mixed with sulphate particles. The fourth group is characterized by an abundance of sulphate particles, some of which are ammonium sulphate brought by the land breezes. The particles were identified as...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=304

Tidal flow simulation in the English Channel and southern North Sea
Provedor de dados: 27
Autores: Yu, C.S.; Fettweis, M.; Hermans, I.; Berlamont, J.
This paper presents the results of the II Tidal Flow Forum experiment of the English Channel and the southern North Sea. The model applies the FADI (falsified alternating direction implicit) scheme and uses the data base of the Tidal Forum. Discrepancies between the model results and the distributed field data of 11 tide stations and 8 tidal current measurement points are shown graphically and are quantified by calculating the RMS (root mean square) errors and the standard deviations. Sensitivity tests have been carried out by changing some parameters (frictions, Coriolis, ...). The results which best fit the reference data were obtained by using the Manning's friction law. By doing so, the model can more appropriately adapt the complex bathymetry.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3348

A study on the DHA content of T-ISO and its impact on preparing rations for larviculture
Provedor de dados: 27
Autores: Tzovenis, I.; De Pauw, N.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2644

Free-living Plathelminthes from the Belgian coast and adjacent areas
Provedor de dados: 27
Autores: Schockaert, E.R.; Jouk, P.E.H.; Martens, P.M.
From own observations and data from the literature. a species list is given of the free-living Plathelminthes which occur on the Belgian coast. in the Netherlands Delta area en some localities in Northern France. In the whole area considered over 250 species have been observed more than 150 of them are from Belgian sandy beaches. some sublitoral stations and/or brackish water areas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Platyhelminthes ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7365

Immunostimulation of juvenile turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.) using an alignate with high mannuronic acid content administered &lt;i&gt;via&lt;/i&gt; the live food organism &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Skjermo, J.; Defoort, T.; Dehasque, M.; Espevik, T.; Olsen, Y.; Skjåk-Bræk, G.; Sorgeloos, P.; Vadstein, O.
In the present experiments we have demonstrated increased protection against a pathogenic bacterium in juvenile turbot (&lt;i&gt;Scophthalmus maximus L.&lt;/i&gt;), after feeding the juveniles the live food organism &lt;i&gt;Artemia&lt;/i&gt; enriched with a suspension of alginate micro-spheres containing an immunostimulant. Most likely the effect was due to stimulation of the non-specific defence of the juveniles. Poor control of the microbial conditions in the intensive rearing facilities may adversely affect the health of fish larvae, and is most likely one of the main factors restricting production of marine juveniles. Methods which help to control the microflora in the system or improve the resistance of the larvae against bacterial infection may...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia Scophthalmus maximus (Linneaus; 1758).
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2616

Influence de quelques facteurs écologiques sur la vitesse de reproduction du cilié hypotriche &lt;i&gt;Euplotes vannus&lt;/i&gt; Muller
Provedor de dados: 27
Autores: Persoone, G.; Deplaecie, M.
During ecological investigations on the optimum culturing conditions of ciliates, we studied the influence of a number of abiotic factors on the reproductive potential of the hypotrichous ciliate &lt;i&gt;Euplotes vannus&lt;/i&gt; Muller, such as the nature and the quantity of food, the temperature and the salinity. The experiments were run in petri dishes of 5 cm diameter containing 5 ml of food suspension, and were always started with conjugants. The microphagous &lt;i&gt;Euplotes vannus&lt;/i&gt; thrives on a variety of food media. Excellent results were observed on homogenized bakers yeast, i.e. 10.000-20.000 animals in 5 ml of food suspension. In good culturing conditions the stationary phase was reached in 7 days, which implicates a mean rate of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reproduction Euplotes vannus ANE; Belgium; Oostende Harbour.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3468

Divergent protonephridial architecture within the Kalyptorhynchia (Platyhelminthes) and the implications for the phylogeny of the Rhabdocoela
Provedor de dados: 27
Autores: Watson, N.A.; Schockaert, E.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7011

Extended serotyping scheme for &lt;i&gt;Vibrio anguillarum&lt;/i&gt; with the definition and characterization of seven provisional O-serogroups
Provedor de dados: 27
Autores: Pedersen, K.; Grisez, L.; van Houdt, R.; Tiainen, T.; Ollevier, F.P.; Larsen, J.L.
The present paper summarizes the serotyping scheme of the fish pathogenic bacterium &lt;i&gt;Vibrio anguillarum&lt;/i&gt; and defines seven additional O-serogroups. Strains, collected in our laboratories that were nontypable with antisera against the previously defined 16 O-serotypes, were used for generating new antisera and were characterized further by means of LPS profiles, Western blots, and serological reactions. On the basis of the results, it is suggested that the seven new O-serogroups are to be included in the existing serotyping system as serotypes O17-O&lt;sub&gt;2&lt;/sub&gt;3. However, the existence of further &lt;i&gt;V. anguillarum&lt;/i&gt; strains that were not typable with any of the 23 O-antisera suggested the existence of additional...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial diseases; Fish diseases; Pathogenic bacteria; Pathogens; Serological studies; Serotypes; Strains; Vibrio anguillarum.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9525

Biological management to improve &lt;i&gt;Artemia&lt;/i&gt; and salt production at Tanggu saltworks in the P.R. China
Provedor de dados: 27
Autores: Tackaert, W.; Sorgeloos, P.
The worldwide distribution of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; , in a variety of isolated biotopes with different ecological conditions, has resulted in the evolution of many geographical strains. Among these strains, substantial differences have been demonstrated in their nutritional quality and fitness, providing a basis for the selection of strains suitable for aquaculture. The Tanggu Saltworks (Tianjin, China) provide a unique environment for the production of &lt;i&gt;Artemia&lt;/i&gt; . Unlike most other biotopes, they are characterized by a high primary productivity providing abundant food to sustain large populations of &lt;i&gt;Artemia&lt;/i&gt; . Both laboratory studies and field observations, however, indicate that the local...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2903

Role of the meiobenthos in the Antarctic ecosystem
Provedor de dados: 27
Autores: Vincx, M.; Vanhove, S.; Beghyn, M.; Herman, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/273125.pdf

The biogeography of &lt;i&gt;Artemia&lt;/i&gt; : an updated review
Provedor de dados: 27
Autores: Vanhaecke, P.; Tackaert, W.; Sorgeloos, P.
An updated list of more than 350 &lt;i&gt;Artemia&lt;/i&gt; sites is provided. It includes geographical coordinates of the sites and available data on the mode of reproduction of the locally occurring brine shrimp.The geographical distribution of &lt;i&gt;Artemia&lt;/i&gt; is related to different types of climate. The classification of climate according to Thornthwaite provides a good correlation with the geographical occurrence of &lt;i&gt;Artemia&lt;/i&gt; , as a result of which the world distribution pattern of &lt;i&gt;Artemia&lt;/i&gt; can be predicted. Moreover, areas with possible &lt;i&gt;Artemia&lt;/i&gt; sites and areas suited for transplantation and/or inoculation with &lt;i&gt;Artemia&lt;/i&gt; can be identified on the basis of water balance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeography; Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3215

Bacteriologisch onderzoek op de Spuikom te Oostende
Provedor de dados: 27
Autores: Joiris, C.
Tipo: Info:eu-repo/semantics/article
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7690

Nématodes marins de Guadeloupe: V. &lt;i&gt;Lauratonema spiculifer&lt;/i&gt; Gerlach,1959; description du système reproducteur des Lauratonematidae
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
&lt;i&gt;Lauratonema spiculifer&lt;/i&gt; Gerlach, 1959, is redescribed. Females are devoid of vulva and possess a characteristic intra-uterine sphincter. The two genera of the Lauratonematidae are discussedwith peculiar references to the female genital system structures of &lt;i&gt;L. spiculifer&lt;/i&gt; and &lt;i&gt;Lauratonemoides originalis&lt;/i&gt; (Gerlach, 1956).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lauratonema spiculifer; Lauratonemoides originalis.
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/308619.pdf

Geïntegreerd kustzonebeheer projectplan voor algemene communicatie
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Communication.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/261504.pdf

Decapsulation of &lt;i&gt;Artemia&lt;/i&gt; cysts: a simple technique for the improvement of the use of brine shrimp in aquaculture
Provedor de dados: 27
Autores: Sorgeloos, P.; Bossuyt, E.; Laviña, E.; Baeza-Mesa, M.; Persoone, G.
Although it is a common practice in different disciplines of fundamental research on the brine shrimp, and despite the very interesting applications that it offers for the use of &lt;i&gt;Artemia&lt;/i&gt; in aquaculture, the "decapsulation" technique, which removes the outer layer of the cyst shell of &lt;i&gt;Artemia&lt;/i&gt; , is not known to shrimp and fish aquaculturists. The present paper describes the technology developed by the authors for the routine decapsulation of &lt;i&gt;Artemia&lt;/i&gt; cysts. The advantage which result from the use of decapsulated cysts in aquacultural hatcheries are discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3572

Effect of n-3 HUFA and DHA/EPA ratio in enriched live feed on fatty acid composition and culture performance of &lt;i&gt;Penaeus vannamei&lt;/i&gt; larvae
Provedor de dados: 27
Autores: Naessens, E.; Wouters, R.; Cobo, M.L.; Vargas, V.; Pedrazzoli, A.; Van Hauwaert, A.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus vannamei.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2589

Sorptie-eigenschappen van sedimenten
Provedor de dados: 27
Autores: Bastin, A.; Meeussen, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266908.pdf

Marine physics
Provedor de dados: 27
Autores: Pichot, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2885

Checklist of Anomuran crabs (Crustacea: Decapoda) from the Eastern Tropical Pacific
Provedor de dados: 27
Autores: Hendrickx, M.E.; Harvey, A.W.
Literature dealing with anomuran crabs from the east Pacific is reviewed. Marine and brackish water species reported at least once in the Eastern Tropical Pacific zoogeographic subregion, which extends from Magdalena Bay, on the west coast of Baja California Sur, Mexico, to Paita, in Northern Peru, are listed,and their distribution range along the Pacific coast of America are provided. Unpublished records, based on material kept in the collections of the authors, were also considered to determine or confirm the presence of species, or to modify previously published distribution ranges within the study area. A total of 207 species, belonging to 56 genera, are included in the checklist, the first ever made available for the entire tropical zoogeographic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists Anomura IS; Eastern Tropical Pacific.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/272005.pdf

Atmospheric concentrations and deposition of heavy metals over the North Sea: a literature review
Provedor de dados: 27
Autores: Injuk, J.; Van Grieken, R.
A literature review of the atmospheric concentration rates and dry and wet deposition fluxes of particulate Cd, Cr, Cu, Pb and Zn to the North Sea and adjacent areas is given. The results of direct measurements of dry and wet deposition fluxes are compared to indirect estimates and to modelling values. This work points out the large uncertainties in results of different studies on atmospheric input of trace elements into the North Sea. The current knowledge about the dependence of the deposition velocity upon the particular size and about the processes controlling wet deposition fluxes, and the quality and completeness of the emission data are still adequate for describing the environmental cycle and impact of heavy metals in the North Sea.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2981

Vibrios associated with &lt;i&gt;Penaeus chinensis&lt;/i&gt; (Crustacea: Decapoda) larvae in Chinese shrimp hatcheries
Provedor de dados: 27
Autores: Vandenberghe, J.; Li, Y.; Verdonck, L.; Li, J.; Sorgeloos, P.; Xu, H.S.; Swings, J.
Bacteriological surveys were performed in 1995 and 1996 in three shrimp hatcheries located in the north of the People’s Republic of China. Samples were taken from routine productions of healthy &lt;i&gt;Penaeus chinensis&lt;/i&gt; larvae, their environment and from diseased larvae. A total of 186 isolates from the dominant bacterial flora was characterized by Biolog metabolic fingerprinting and identified by comparison to a database of 850 Vibrio type- and reference strains. Representative &lt;i&gt;Vibrio harveyi&lt;/i&gt; strains were further genotypically analyzed by AFLP fingerprinting of whole-genomes. An overwhelming predominance of &lt;i&gt;V. alginolyticus&lt;/i&gt; and &lt;i&gt;V. harveyi&lt;/i&gt; was observed in the larval developmental stages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus chinensis (Osbeck).
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=322

Annotated catalogue of Porifera type specimens in the Belgian national collections
Provedor de dados: 27
Autores: Willenz, P.
The national zoological collections of Belgium house 161 type specimens representing a total of 64 nominal species of Porifera. A list of extant and lost specimens is provided, presenting their original name, synonyms, museum characteristics and bibliography.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Museum collections; Type specimens; Porifera [Sponges]; Belgium.
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/253432.pdf

Splanchnotrophid systematics: a case of polyphyly and taxonomic myopia
Provedor de dados: 27
Autores: Huys, R.
The Splanchnotrophidae is a small family of bizarre poecilostomatoid copepods which utilize marine opisthobranch gastropods, including nudibranchs and pteropods, as hosts. Species have traditionally been placed in this family primarily on the basis of host affiliation, largely neglecting the fundamental differences in morphology and paying virtually no attention to the concept of homology. Morphological analysis based on detailed re-examination of types and newly obtained material from existing museum collections revealed that the Splanchnotrophidae comprises genera drawn from three different families in addition to one non-copepodan taxon. The family Splanchnotrophidae is redefined to include only Splanchnotrophus Hancock and Norman, 1863, Ismaila Bergh,...
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6459

The fate of old bottle-nosed dolphins, &lt;i&gt;Tursiops truncatus&lt;/i&gt;, in nature as revealed by the condition of their skeletons
Provedor de dados: 27
Autores: De Smet, W.M.A.
Comparison of the skeletons of stranded or river-dwelling bottle-nosed dolphins with those of delphinarium specimens revealed that many of the former animals had suffered from various diseases. Most wild specimens have broken or lost a part of their teeth or even all of them. In a few cases they show signs of bone erosion (probably by abscesses), bone neoformation, and in a single case a broken mandible. Teeth abrasion may start early in life. Also delphinarium specimens may have broken teeth. Broken ribs can be found in half of the number of specimens. In the wild the ribs healed nicely, but in the delphinarium they hardly did. All the wild specimens show periosteitic phenomena to some degree. Delphinarium specimens are not excepted from them. In one of...
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3569

International study on &lt;i&gt;Artemia&lt;/i&gt; : 33. Promising results in larval rearing of &lt;i&gt;Penaeus stylirostris&lt;/i&gt; using a prepared diet as algal substitute and for &lt;i&gt;Artemia&lt;/i&gt; enrichment
Provedor de dados: 27
Autores: Léger, P.; Bieber, G.F.; Sorgeloos, P.
The importance of highly unsaturated fatty acids (HUFA) such as 20:5omega3 and 22:6omega3 has been investigated for the larvae of the blue shrimp &lt;i&gt;Penaeus stylirostris&lt;/i&gt;. HUFA-rich or HUFA-enriched &lt;i&gt;Artemia&lt;/i&gt; nauplii yielded higher production results in the hatchery than HUFA-poor &lt;i&gt;Artemia&lt;/i&gt; especially when yeast was used as a substitute for algae during the early larval stages. Best results were obtained when a HUFA-rich formulated diet was used as a supplement to the yeast and as an enrichment for the &lt;i&gt;Artemia&lt;/i&gt; nauplii. Differences in production results could be attributed to the HUFA content in living and non-living larval diets.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets; Food organisms; Rearing; Shrimp culture; Artemia; Penaeus stylirostris (Stimpson).
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3234

Quantitative in-situ microanalysis of minor and trace elements in biogenic calcite using infrared laser ablation - inductively coupled plasma mass spectrometry: a critical review
Provedor de dados: 27
Autores: Vander Putten, E.; Dehairs, F.A.; André, L.; Baeyens, W.F.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10258

Ecometabolism of a shallow marine lagoon at Ostend (Belgium): 4. The role of microbial activity in sediments in the carbon and nitrogen cycles
Provedor de dados: 27
Autores: Podamo, J.
Nitrogen nutrients being, at least at some periods of the year, a limiting factor of primary production in the Sluice-Dock at Ostend, the production or consumption of ammonium and nitrate by the benthic bacterial communities plays an important role in the dynamics of the ecosystem. A methodology is developed to evaluate the fluxes of carbon and nitrogen associated with the microbiological activity and the physical mass transfer in the sediments.  It is based on the analysis of vertical concentration profiles of pertinent substances in the sediment, completed with some direct &lt;i&gt;in situ&lt;/i&gt; measurements of microbiological activity.  This methodology is applied to denitrification, total heterotrophic activity, and nutrification in the two types...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3539

PCBs and organochlorine pesticides in phytoplankton and zooplankton in the Indian sector of the Southern ocean
Provedor de dados: 27
Autores: Joiris, C.R.; Overloop, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6888

Total and methylmercury in sardines &lt;i&gt;Sardinella aurita&lt;/i&gt; and &lt;i&gt;Sardina pilchardus&lt;/i&gt; from Tunisia
Provedor de dados: 27
Autores: Joiris, C.R.; Holsbeek, L.; Laroussi, M.N.
This paper reports concentrations of total mercury and methylmercury in muscle, liver and gonads of two sardines (Sardinella aurita, n=184 and Sardina pilchardus, n=87) from three coastal areas off Tunisia. Mercury concentration in muscle and liver showed significant positive correlation with fish length (i.e. with age). The relative methylmercury concentration was high and constant in muscle (&gt;85% MeHg), and was decreasing with age in liver (from 50% to 20%), which might reflect the existence of a slow demethylation process. From the geographic point of view, Hg concentration was similar in the northern and eastern areas (0.32 µg g-1 dw in muscle for Sardinella aurita, 0.41 for Sardina pilchardus), but significantly lower in the southern zone (0.19 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sardina pilchardus; Sardinella aurita [round sardinella].
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6838

Dynamic response of deep-sea sediments to seasonal variations: a model
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Middelburg, J.J.
We present a dynamic, numerical model of early diagenetic processes that can be used to examine the response of different organic carbon mineralization pathways, concentration vs. depth profiles, and the resultant fluxes to seasonally varying carbon deposition. We show that there can be substantial temporal variability in sediment-water fluxes as well as in the relative contribution of different organic carbon mineralization pathways and oxygen consumption processes in deep-sea sediments. The timing and amplitude of the sediment response are most sensitive to the reactivity of the organic matter. We show that the fluxes of dissolved substances can be approximated by assuming that these constituents are at steady state with the carbon profiles. The model is...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8444

Preliminary observations on the copepods of Tudor Creek, Mombasa, Kenya
Provedor de dados: 27
Autores: Revis, N.
The zooplankton of Tudor Creek, a mangrove estuary in Kenya, was investigated from November 1984 to October 1985 at monthly intervals. One hundred and two copepod species were identified of which twelve were abundant. Densities are given for these species and their seasonal fluctuations are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance Distribution records Estuarine organisms Mangrove swamps Marine crustaceans Population density Population structure Seasonality Zooplankton Copepoda [copepods] ISW; Kenya; Mombasa; Tudor Creek.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3157

&lt;i&gt;Doxomysis algoaensis&lt;/i&gt;, a new mysid species (Crustacea: Mysidacea) from Algoa Bay (South Africa)
Provedor de dados: 27
Autores: Wooldridge, T.; Mees, J.
&lt;i&gt;Doxomysis algoaensis&lt;/i&gt; sp.nov. is described from Algoa Bay, South Africa where it is common in nearshore marine waters just beyond the breaker line. &lt;i&gt;D. algoaensis&lt;/i&gt; sp.nov. is morphologically similar to &lt;i&gt;D. australiensis&lt;/i&gt;, but can readily be distinguished by the shape and armature of the telson and the length of the exopod of the fourth male pleopod. The apical cleft is one fifth the telson length in the former species and one third the length in &lt;i&gt;D. australiensis&lt;/i&gt;. The telson apex on each side of the cleft is also armed with five and four stout spines in the two species, respectively. In &lt;i&gt;D. australiensis&lt;/i&gt;, the exopod of the fourth male pleopod is almost three times the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal zone Doxomysis Gastrosaccus olivae Mysida PSW; Africa; South; Algoa Bay.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3513

Study of the development of the caudal endoskeleton of the turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; L., 1758 (Pleuronectiformes: Scopthalmidae)
Provedor de dados: 27
Autores: Chanet, B.; Wagemans, F.
The development of the caudal endoskeleton of the turbot &lt;i&gt;(Scophthalmus maximus L.)&lt;/i&gt; is described and compared to the setting-up of the caudal endoskeleton in other flatfishes. In the turbot, caudal bony elements develop very early, before the eye migration. The same pattern occurs in the flatfishes of the bothoid group, while in the Soleidae the supporting caudal fin elements develop once the eye has migrated. This discrepancy is discussed; it points out that more work on the ontogeny of flatfishes is needed.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/115085.pdf

Research on the development of a standardized ecotoxicological test on marine nematodes: 1. Culturing conditions and criteria for two monhysterids, &lt;i&gt;Monhystera disjuncta&lt;/i&gt; and &lt;i&gt;Monhystera microphthalma&lt;/i&gt;
Provedor de dados: 27
Autores: Vranken, G.; Van Brussel, D.; Vanderhaeghen, R.; Heip, C.H.R.
The brackish-water nematodes &lt;i&gt;Monhystera disjuncta&lt;/i&gt; and &lt;i&gt;Monhystera microphtalma&lt;/i&gt; were chosen as test organisms for ecotoxicological studies. Both species are locally abundant, have short life cycles and can be maintained for several generations under laboratory conditions. They reproduce very well on a sloppy bacto-agar (0.5-0.8%) made up with water of the natural habitat, enriched with 1% Vlasblom medium (Vlasblom, pers. commun.) and 1% silicium (15g.l&lt;sup&gt;-1&lt;/sup&gt;), reaching densities of approximately 1000 individuals.cm&lt;sup&gt;-2&lt;/sup&gt;. Starting from such agnotobiotic cultures, a chemically defined artificial medium has been developed. This medium consists of 0.5% bacto-agar in artificial seawater,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Toxicity tests Monhystera disjuncta Monhystera microphtalma de Man; 1880.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3276

The effect of diurnal temperature cycles on survival of &lt;i&gt;Artemia&lt;/i&gt; from different geographical origin
Provedor de dados: 27
Autores: Thoeye, C.; Van der Linden, A.; Bernaerts, F.; Blust, R.; Decleir, W.
The temperature in a natural &lt;i&gt;Artemia&lt;/i&gt; habitat usually shows diurnal cyclic variations. It is important for inoculation and culturing purposes to know the survival under such conditions. The survival of four &lt;i&gt;Artemia&lt;/i&gt; strains, Great Salt Lake and San Francisco Bay (USA), and Sfax and Mégrine (Tunisia) was studied over a period of 7 days, in different conditions of constant or diurnal fluctuating temperatures at two salinities. For the Great Salt Lake strain, the temperature fluctuation had no effect on the survival, as compared to constant temperature regimes (at 35 pro mille). For the other strains, temperature fluctuations had either no influence, or a beneficial influence on survival. In general, the tolerance of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3204

Meiofauna communities from the Straits of Magellan and the Beagle Channel
Provedor de dados: 27
Autores: Chen, G.T.; Herman, R.L.; Vincx, M.
Meiofauna from 20 stations (ranging between 8 and 550 m) in the Magellan Straits and the Beagle Channel revealed 28 small sized taxa of higher categories including the temporary meiofauna. Nematoda, Copepoda Harpacticoidea and Polychaeta occurred in all samples; Turbellaria, Bivalvia, Kinorhyncha and Ostracoda were regularly present. Nematodes represented between 68% and 94% of the meiofauna at each station, followed by the copepods (2.3% to 14.5%) and polychaetes (1.1% to 11.5%). Maximal total density, 9700 individuals 10 cm(-2), was found in the surroundings of Picton Island, while the mean abundance per station was 3374 individuals 10 cm(-2). The vertical pattern within the sediment showed that 87% of meiofauna components concentrated in the upper 0-5...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Channels Community composition Meiobenthos Straits Taxa Vertical distribution Zonal distribution Zoobenthos Bivalvia Copepoda [copepods] Harpacticoida Kinorhyncha [spiny-crown worms] Nematoda [Nematodes] Ostracoda Polychaeta [Bristle worms] Turbellaria [Flatworms] PSW; Argentina; Tierra del Fuego; Beagle Channel PSW; Chile; Magellan Straits PSW; Chile; Tierra del Fuego; Beagle Channel.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/256154.pdf

Fishing effects in northeast Atlantic shelf seas: patterns in fishing effort, diversity and community structure. IV. Can comparisons of species diversity be used to assess human impacts on demersal fish faunas?
Provedor de dados: 27
Autores: Rogers, S.I.; Maxwell, D.; Rijnsdorp, A.D.; Damm, U.; Vanhee, W.
Patterns in the abundance of commercially important and non-target demersal fish species collected by beam trawl survey from the coastal waters of the northeast Atlantic are described. Catches were dominated by a small number of species, which occurred in large numbers and at high biomass. The most abundant species (plaice and dab) were typical of shallow, uniform sandy and muddy seabed which occurred extensively throughout the southern North Sea, and to a limited extent in UK western waters. Renyi's diversity index family was used to rank the diversity of coastal sectors throughout the region. The less species-rich North Sea fauna, partly a result of the uniform nature of the seabed was largely responsible for lower diversity of North Sea coastal faunas...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6409

&lt;i&gt;Echinoderes higginsi&lt;/i&gt; sp. n. (Kinorhyncha, Cyclorhagida) from the southern North Sea with a key to the genus &lt;i&gt;Echinoderes&lt;/i&gt; Claparède
Provedor de dados: 27
Autores: Huys, R.; Coomans, A.
Echinoderes higginsi sp.n. is described from shallow subtidal sand north of the mouth of the Westerscheldt estuary, The Netherlands. The species is compared with other species having the same spine formulac. It appears to be most closely related to E. kristenseni Higgins. 1983 and, to a lesscr extent. to E. riedli Higgins, 1966. Condyldres multispinosus (McIntyre. 1962) is reported from the same locality, the first report of this centroderid kinorhynch since the original description. Some additional information on E. levunderi Karling, 1954 is presented. The presence of lateroventral adhesive tubes on the fourth segment, lateral spines on segment 7 and small additional setae on segment 12 in the male is noted. Echinoderes canariensis Greeff, 1869 and E....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species ANE; Netherlands; Westerschelde ANE; North Sea; Southern Bight.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7083

Inleidende oecologische studie van klei- en turfbanken in de getijdenzone te Raversijde (België)
Provedor de dados: 27
Autores: Jocqué, R.; Van Damme, D.
The beach of Raversijde shows substrata which are very rich in comparison to the rest of natural substrata along the Belgian coast, consisting exclusively of sandy beaches. At this moment however it is threatened by silting up due to construction of breakwaters. From June to December 1970 samples were taken at several places of the beach. The investigation was focused on the peatbanks situated around mean tide level and the claybanks near low tide level. The foulding of those substrata was compared to that of wooden wreck situated near mean tide level . We found that the foulding on the vertical slopes of peatholes was characterised by as striking periodicity. This is due to the fact that only a few organisms are able to settle down immediately on peat....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition Intertidal environment Peat ANE; Belgium; Belgian Coast ANE; Belgium; Oostende; Raversijde-Bad.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3427

Eerste waarnemingen van &lt;i&gt;Undaria pinnatifida&lt;/i&gt; (Harvey) Suringar (Laminariales, Phaeophyta) en de epifyt &lt;i&gt;Pterothamnion plumula&lt;/i&gt; (Ellis) Nägeli (Ceramiales, Rhodophyta) in Noord Frankrijk en België
Provedor de dados: 27
Autores: Leliaert, F.; Kerckhof, F.; Coppejans, E.
&lt;i&gt;Undaria pinnatifida&lt;/i&gt; is reported from the coast of northern France and Belgium. Its epiphyte &lt;i&gt;Pterothamnion plumula&lt;/i&gt; is also new to the region. Descriptions and illustrations are given.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6411

Effect of hydrogen ions and inorganic complexing on the uptake of copper by the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Blust, R.; Fontaine, A.; Decleir, W.
The effect of hydrogen ions and inorganic complexing on copper uptake in the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt; has been studied in chemically defined saltwater solutions. Uptake increases with decreasing hydrogen ion concentration and decreases with increasing carbonate complexation. A simple non-linear model that combines the effect of hydrogen ions on the transport of the metal across the solution-body interface and the effect of hydrogen ions and complexation on the speciation of the metal provided a close functional description of the observed variation in copper uptake by brine shrimp.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioaccumulation Carbonates Hydrogen ions Ingestion Salinity effects Artemia franciscana USA; Utah; Great Salt L.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/135218.pdf

&lt;i&gt;Acanthochiton communis&lt;/i&gt; (Risso, 1826) f. &lt;i&gt;barashi&lt;/i&gt; n.f.
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Acanthochiton communis var. barashi.
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/289038.pdf

The history, present status and prospects of the availability of &lt;i&gt;Artemia&lt;/i&gt; cysts for aquaculture
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
This paper provides an overview of the history of &lt;i&gt;Artemia&lt;/i&gt; cyst provision worldwide since the 1950s. It allows a better assessment of the current situation, characterized by poor yields from the main harvest site, the Great Salt Lake in Utah, USA, and to make prognoses about future supplies and demands.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts Hatcheries Literature reviews Zooplankton culture Artemia USA; Utah; Great Salt L.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=43

Technological aspects of the batch culturing of &lt;i&gt;Artemia&lt;/i&gt; in high densities
Provedor de dados: 27
Autores: Bossuyt, E.; Sorgeloos, P.
Contrary to the rearing of brine shrimp at laboratory scale which is current practice and well described in many papers, specific information on the high-density culturing of this species is scanty. This paper briefly reviews the different culturing methods precognized so far and discussed the advantages of batch culture in air-water-lift raceways: the latter technology has been optimized during the last 4 years at the &lt;i&gt;Artemia&lt;/i&gt; Reference Center and permits a current production of 2 kg biomass/m³ in 2 weeks culturing at 25°C.A detailed description is given of:1. construction of the raceways: tank design and characteristics and selection of materials: construction, positioning and operation of the air-water-lifts;2. techniques for water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3610

Marine algae of Papua New Guinea (Mandang prov.): 2. A revised and completed list of &lt;i&gt;Caulerpa&lt;/i&gt; (Chlorophyta-Caulerpales)
Provedor de dados: 27
Autores: Coppejans, E.
The study of marine macroalgae collected in N. Papua New Guinea in 1980, 1986, 1988 and 1990 resulted in 14 species (29 entities) of &lt;i&gt;Caulerpa: C. biserrulata, C. cupressoides&lt;/i&gt; (5 ecads), &lt;i&gt;C. elongata&lt;/i&gt; (2 ecads), &lt;i&gt;C. filicoides var. andamanensis, C. lentillifera, C. manorensis, C. microphysa, C. opposita, C. racemosa&lt;/i&gt; (8 ecads), &lt;i&gt;C. serrulata&lt;/i&gt; (3 ecads), &lt;i&gt;C. sertularioides, C. taxifolia&lt;/i&gt; (2 ecads),&lt;i&gt;C. verticillata&lt;/i&gt;, and &lt;i&gt;C. webbiana&lt;/i&gt; ecad &lt;i&gt;disticha&lt;/i&gt;. An identification key is added.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caulerpa; Chlorophyta [green algae].
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2710

(n-3) HUFA composition of freshly spawned eggs from European seabass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;), seabream (&lt;i&gt;Sparus aurata&lt;/i&gt;) and red seabream (&lt;i&gt;Pagrus major&lt;/i&gt;) collected in different hatcheries
Provedor de dados: 27
Autores: Komis, A.; Léger, P.; Sorgeloos, P.
The biochemical composition of fish eggs is often used as an indicator for assessing the nutritional requirements of aquaculture species during their larval stages. Fatty acids of the (n-3) HUFA type have proven to play a critical role in providing good growth, survival and stress resistance in marine fish larvae. Hence, analyzing these fatty acids in fish eggs may provide interesting data on the requirements for those essential nutrients. By comparing the analyses of wild versus broodstock fish eggs differences may appear, possibly explaining differences in egg quality. Intra-spawning-season differences may further appear by following fatty acid profiles in the course of time. Finally, the influence of broodstock nutritionon egg composition may be another...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comparative studies; Fatty acids; Fish culture; Fish eggs; Hatcheries; Induced breeding; Dicentrarchus labrax [Bass]; Pagrus major; Sparus aurata [Gilthead].
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262325.pdf

&lt;i&gt;Boreopontia heipi&lt;/i&gt; n.g., n.sp., an interstitial harpacticoid (Copepoda) from the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Willems, K.A.
During a comprehensive investigation of the meiofauna of the Kwinte Bank, a sandbank in the Southern Bight of the North Sea, several specimens were collected of an interstitial harpacticoid of the family Cylindropsyllidae, representing a new genus. These specimens, referred to as &lt;i&gt;Arenopontia&lt;/i&gt; sp. A by Willems &lt;i&gt;et al&lt;/i&gt;. (in press), occurred in two stations with a pure, very well sorted coarse sand. The physical characteristics were: a median grain size: 402-517 µm; sorting: 0.30-0.24 Ø; mud (&lt;63 µm) content: 0.05-0 % ; gravel (&gt;2000 µm) content: 1.13-0.24 %. The copepod association was dominated by &lt;i&gt;Interleptomesochra eulittoralis&lt;/i&gt; Noodt, 1952). &lt;i&gt;Leptastacus laticaudatus intermedius&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera New species Boreopontia heipi Willems; 1981 Copepoda [copepods] Harpacticoida ANE; Belgium; Flemish Banks; Kwinte Bank ANE; North Sea; Southern Bight.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3411

Nematodes as indicators pollution: a case study from the Swartkops River system, South Africa
Provedor de dados: 27
Autores: Gyedu-Ababio, T.; Furstenberg, J.P.; Baird, D.J.; Vanreusel, A.
Nematodes from the sediments of the Swartkops estuary in Port Elizabeth, South Africa were investigated at 10 selected sites along a salinity gradient in the subtidal region at neap tide. The relation between nematode density, genera, community structure and environmental parameters including concentrations of seven heavy metals, Mn, Ti, Cr, Pb, Fe, Sn and Zn in the sediment were investigated. The nematode community structure was significantly influenced by the chlorophyll a concentration and sediment particle-size distribution. The number of genera had significant negative correlation with chlorophyll a and two heavy metals, Fe and Zn in the sediment. The habitat preferences of the genera were also assessed. A combination of the Shannon-Wiener Diversity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists; Density; Diversity; Ecology; Meiobenthos; Pollution; Sediment; Sediments; Nematoda [Nematodes].
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7328

&lt;i&gt;Balaena belgica&lt;/i&gt; Abel 1938 Cétacé du Merxemien d'Anvers
Provedor de dados: 27
Autores: Plisnier-Ladame, F.; Quinet, G.E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fossils Cetacea [whales; Dolphins and porpoises] Belgium.
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/297391.pdf

Macrobenthos of a sublittoral sandbank in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Vanosmael, C.; Willems, K.A.; Claeys, D.; Vincx, M.; Heip, C.H.R.
The benthic fauna of a linear sandbank, the Kwinte Bank, in the Belgian coastal waters of the North Sea was sampled on ten stations in September 1978. Density and species composition of the macrofauna and sediment characteristics have been studied. The Kwinte Bank shows a gradient from finer sediments in the south to coarser sediments in the north, resulting from the tidal current pattern in the region, and can be considered as a biogeographical island as the bank is surrounded by a region of much finer sediments. The macrofauna consists of 73 identified species and has an average density of 4910 ind./m² and an average diversity of 2.5 bits/ind. Interstitial polychaetes predominate and among those &lt;i&gt;Hesionura augeneri&lt;/i&gt; is the most abundant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Sand banks ANE; Belgium; Flemish Banks; Kwinte Bank ANE; North Sea; Southern Bight.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3390

Erosie aan de Belgische kust
Provedor de dados: 27
Autores: De Moor, G.
Intense residual erosion attacks several sections of the Belgian coast. During the last decades this coast has been hit over several kilometers at Knokke, at Bredene-De Haan, at Lombardsijde, at Koksijde and at De Panne. A sequence of beach budgets shows the phenomenon and its importance and proves that different morphodynamic sections follow one another all along the rectilinear coast. The author ascribes every erosive section to an erosive megaprotuberans attacking the coast over a more or less long distance during a more or less long time span. He proves that such megaprotuberans develops gradually, that it is part of a cyclic macroprocess of coastal evolution that lasts several decades, sweeps the cost and whose aggressive phase is followed up by a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal erosion ANE; Belgium; Belgian Coast.
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/100784.pdf

Vogels in Nova Scotia
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6988

De oeverloofslak in het Schelde-estuarium
Provedor de dados: 27
Autores: Bruyndoncx, L.; Jordaens, K.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280703.pdf

Zonation and structuring factors of meiofauna communities in a tropical seagrass bed (Gazi Bay, Kenya)
Provedor de dados: 27
Autores: De Troch, M.; Gurdebeke, S.; Fiers, F.; Vincx, M.
This study deals with the relation between tropical meiofauna and environmental variables by comparing the 'benthic' (i.e. in the bare sediment adjacent to seagrass plants) and the 'epiphytic' (i.e. in samples including seagrass plants) meiofauna associated with five seagrass species from the high intertidal to the high subtidal zone in Gazi Bay (Kenya). Ordination and variance analysis revealed three distinct 'benthic' and two 'epiphytic' meiofauna assemblages. These assemblages corresponded entirely with those identified for the seagrass species: a high intertidal pioneer association (&lt;i&gt;Halophila ovalis/Halodule wrightii&lt;/i&gt;), an intertidal climax assemblage (&lt;i&gt;Thalassia hemprichii&lt;/i&gt;) and a high subtidal pioneer association...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecological zonation Meiobenthos Sea grass Zoobenthos Halodule wrightii Halophila ovalis Halophila stipulacea Thalassia hemprichii ISW; Kenya; Gazi Bay Kenya.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8880

Progrès dans la larviculture des poissons grâce à une meilleure nutrition et à l'amélioration des zootechnies
Provedor de dados: 27
Autores: Dhert, Ph.; Lavens, P.; Dehasque, M.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2555

Het belang van het Verdronken Land van Saeftinghe voor de vis- en schaaldierfauna van de Westerschelde
Provedor de dados: 27
Autores: Cattrijsse, A.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7252

Studies of the life-history and energetics of marine and brackish-water nematodes: 2. Production, respiration and food uptake by &lt;i&gt;Monhystera disjuncta&lt;/i&gt;
Provedor de dados: 27
Autores: Herman, P.M.J.; Vranken, G.
An energy budget was constructed for the marine nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt;. Respiration was measured with a modified Cartesian diver technique, in which the nematodes were kept in agar inside the diver 'head'. The relationship between respiration and body weight was: R=1.53 W&lt;sup&gt;0.75&lt;/sup&gt;. Body growth was exponential during the juvenile phase, with a growth rate equal to 0.61 d&lt;sup&gt;-1&lt;/sup&gt;. After maturation the growth rate fell to 0,17 d&lt;sup&gt;-1&lt;/sup&gt;. Food uptake was measured in experiments with radiolabeled bacteria. In one series of experiments the accumulation of radiolabel in the nematodes was followed. In a second series the decrease in labeling was followed when pre-labeled nematodes fed on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergetics; Brackishwater environment; Energy budget; Energy flow; Feeding; Life history; Meiobenthos; Respiration; Monhystera disjuncta; Nematoda [Nematodes].
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3146

Laboratory and field variation in HUFA enrichment of &lt;i&gt;Artemia nauplii&lt;/i&gt;
Provedor de dados: 27
Autores: Lavens, P.; Coutteau, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2576

On the cultivation of free-living marine and estuarine nematodes
Provedor de dados: 27
Autores: Moens, T.; Vincx, M.
Although a large body of literature exists on the systematics and ecology of free-living marine and brackish-water nematodes, key questions on the nature and magnitude of interactions between nematodes and other organisms in the benthos remain unanswered. Relatively few authors have investigated live nematodes in food web studies or in experiments dealing with the nematodes' response to a varying environment. It is mainly for the latter purpose that attempts have been made to maintain, rear and cultivate selected species. This paper describes the methodology used for the maintenance, rearing, and eventual permanent agnotobiotic cultivation of a variety of estuarine nematodes. Spot plates, where small samples of sediment or macrophyte material are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cultivation Cultivation Cultivation Culture Culture Maintenance Maintenance Maintenance Marine Meiobenthos Mineralization Temperature Monhystera disjuncta Nematoda [Nematodes] ANE; Netherlands; Westerschelde.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7316

Grain size-, facies- and sequence analysis of West Belgian Eocene continental shelf deposits
Provedor de dados: 27
Autores: Jacobs, P.; Sevens, E.; De Batist, M.; Henriet, J.-P.
Grain size trends and sedimentary structures of Eocene continental shelf deposits from offshore and onshore drillings in West Belgium were combined for reconstruction of depositional environments.The VAIL-model for siliciclastic sedimentation on shelf margins allows systems tracts identification on basis of grain size signals. The (put into revision) Eocene lithostratigraphy could therefore be transferred into sequence stratigraphy.Sediment genetic interpretation of sedimentary structures and grain size trends, together with sediment supply indications, suggests a Pre-Rhine-Meuse-Scheldt delta high on the shelf as depositional system.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Continental shelves Eocene Belgium; West.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2864

Oral vaccination of juvenile carp (&lt;i&gt;Cyprinus carpio&lt;/i&gt;) and gilthead seabream (&lt;i&gt;Sparus aurata&lt;/i&gt;) with bioencapsulated &lt;i&gt;Vibrio anguillarum&lt;/i&gt; bacterin
Provedor de dados: 27
Autores: Joosten, P.H.M.; Avilés-Trigueros, M.; Sorgeloos, P.; Rombout, J.H.W.M.
In this study &lt;i&gt;Artemia nauplii&lt;/i&gt; were used as an antigen delivery system for oral vaccination of young fish with a &lt;i&gt;Vibrio anguillarum&lt;/i&gt; bacterin. Juvenile carp of 15-, 29- and 58-days old (stomachless fish) and gilthead seabream of 57- and 69-days old (stomach-containing fish) were fed with this bioencapsulated bacterin. Antigen transport in the endgut was studied using bioencapsulated bacterin. In carp of 29- and 58-days old antigenic determinants of &lt;i&gt;V. anguillarum&lt;/i&gt; were transported from lumen to supranuclear vacuoles in carp and finally to intraepithelial macrophages. In carp of 15-days old a similar transport was observed, only macrophages could not be found. In gilthead seabream a different (more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyprinus carpio Linnaeus; 1758 Sparus aurata Linnaeus; 1758 [Gilthead] Vibrio anguillarum.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2568

A new harpacticoid copepod family collected from Australian sponges and the status of the subfamily Rhynchothalestrinae Lang
Provedor de dados: 27
Autores: Huys, R.
A new family is proposed for &lt;i&gt;Hamondia superba&lt;/i&gt; gen. et sp. nov., a shield-shaped harpacticoid collected from washings of sponges from Port Phillip, Australia. It is concluded that the closest relatives of the Hamondiidae fam. nov. currently belong to the heterogeneous thalestrid genus &lt;i&gt;Rhynchothalestris&lt;/i&gt; Sars, 1905 and for that reason the latter is revised. &lt;i&gt;Rhynchothalestris rufocincta&lt;/i&gt; (Brady, 1880) is redescribed and designated as type species for Ambunguipes gen. nov., comprising also the Indo-Pacific &lt;i&gt;A. Similis&lt;/i&gt; (A. Scott, 1909) which is re-instated. &lt;i&gt;Ambunguipes vanhoeffeni&lt;/i&gt; (Brady, 1910) is ranked as species inquirenda within the genus. Because of its body...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ambunguipedidae Copepoda [copepods] Hamondia Huys; 1990 Hamondiidae Harpacticoida Lucayostratiotes Huys; 1990 Peltthestris Monard; 1924 Rhynchothalestrinae Rhynchothalestris Sars; 1905.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7178

&lt;i&gt;Spongonema tomentosum&lt;/i&gt; (Huds.) Kütz. (Phaeophyta, Ectocarpales), nouveau pour la flore du Boulonnais (Pas-de-Calais, France)
Provedor de dados: 27
Autores: Coppejans, E.
In March 1982, &lt;i&gt;Spongonema tomentosum&lt;/i&gt; was collected epiphytically on &lt;i&gt;Fucus serratus&lt;/i&gt;, in the lower mediolittoral zone at Wimereux. The morphology of this brown seaweed and the different types of reproductive structures are described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Spongonema tomentosum (Hudson) Kützing; 1849 ANE; France; Nord; Pas-de-Calais.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3370

Révision des Nassariidae (Mollusca: Gastropoda prosobranchia) de l'Afrique occidentale
Provedor de dados: 27
Autores: Adam, W.; Knudsen, J.
In the present paper the authors have described, figured or discussed 37 species of &lt;i&gt;Nassarius&lt;/i&gt;, 6 species of &lt;i&gt;Bu//ia&lt;/i&gt;, 2 species of &lt;i&gt;Cy//ene&lt;/i&gt; and one species of &lt;i&gt;Demou/ia&lt;/i&gt;. Among the &lt;i&gt;Nassarius&lt;/i&gt;, &lt;i&gt;N. ambiguous&lt;/i&gt; (PULTENEY, 1799, non SOLANDER, 1766) and &lt;i&gt;N. margaritiferus&lt;/i&gt; (DUNKER, 1847) are doubtful species for the West-African coast. Six new species of &lt;i&gt;Nassarius&lt;/i&gt; have been described: &lt;i&gt;N. at/antideus, N. bruuni, N. gruve/i, N. mega/oca//us, N. parcipictus&lt;/i&gt; and &lt;i&gt;N. pseudopoeci/ostictus&lt;/i&gt;. &lt;i&gt;Nassarius muelleri, N. plicatellus&lt;/i&gt; and &lt;i&gt;BuIlia granulosa&lt;/i&gt; are...
Tipo: Info:eu-repo/semantics/article
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/303514.pdf

The meiobenthos of subtidal sandbanks on the Belgian Continental Shelf (Southern Bight of the North Sea)
Provedor de dados: 27
Autores: Vanaverbeke, J.; Gheskiere, T.; Vincx, M.
The Belgian Continental Shelf (BCS) is characterized by a set of isolated subtidal sandbank systems, which greatly increase the habitat heterogeneity of the area. The meiobenthos of these sandbanks was investigated during 1997 and 1998. In total, 10 sandbanks have been sampled, belonging to three different geographically isolated systems: the Flemish Banks, the Hinder Banks and the Zeeland Banks. No obvious differences in sedimentological characteristics between the sandbanks were found, but biologically some differences could be detected. The more offshore Hinder Banks had the most diverse meiobenthos, while the Flemish Banks harboured the lowest number of meiobenthic taxa. Seasonal and regional differences in terms of densities are a result of a coupling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos; Phytoplankton; Sand banks; Sediment properties.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5343

Recente sedimenten in de Spuikom
Provedor de dados: 27
Autores: Gullentops, F.
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7674

On &lt;i&gt;Klieopsis&lt;/i&gt; n. gen., with a description of &lt;i&gt;Cypridopsis horai&lt;/i&gt; Klie, 1927 (Crustacea, Ostracoda)
Provedor de dados: 27
Autores: Martens, K.; Meisch, C.; Marmonier, P.
&lt;i&gt;Klieopsis&lt;/i&gt; n. gen. is here described to comprise the species &lt;i&gt;Cypridopsis horai&lt;/i&gt; Klie, reported from India. The new genus is characterized by an aberrant inner list on the RV, by a furca with a cylindrical trunk and by the reduction of two claws (G2 and Gm) on the A2 to short setae. After re-examination of the type materials, &lt;i&gt;Cypridopsis caerulescens&lt;/i&gt; Klie from Kenya is synonymized with &lt;i&gt;K. horai&lt;/i&gt;, which is here furthermore reported for the first time from Israel (surroundings of the Dead Sea). The latter specimens are extensively described, and a discussion on the taxonomic position of the new genus is offered. An apparently similar species from Sardegna, &lt;i&gt;Cypridopsis...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/303487.pdf

The characterisation of cohesive sediment properties
Provedor de dados: 27
Autores: Berlamont, J.; Ockenden, M.; Toorman, E.; Winterwerp, J.C.
This paper describes apparatus, techniques and methods used by participants in MAST G6M project 4 (Cohesive Sediments) for determining cohesive sediment properties. This comparison of methods aims to stimulate a more general discussion on standardisation of techniques which will lead to characterisation of muds in terms of physical parameters. Such characterisation would allow intercomparison of muds from different sources. Methods are given for sediment properties of grain size distribution, settling velocity and rheological parameters and for water-bed exchange properties of permeability, effective stress and critical shear stress for erosion and deposition. Accuracy and repeatability are discussed. A typical range of values is indicated for each of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cohesive sediments; Sediment properties.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2947

Potvisstrandingen aan de Belgische kust
Provedor de dados: 27
Autores: Holsbeek, L.; Joiris, C.R.; Tavernier, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/297738.pdf

The effect of low lead and zinc concentrations on the larval development of the mud-crab &lt;i&gt;Rhithropanopeus harrisii&lt;/i&gt; Gould
Provedor de dados: 27
Autores: Benijts-Claus, C.; Benijts, F.
Low concentrations of Zn&lt;sup&gt;2+&lt;/sup&gt; and Pb&lt;sup&gt;2+&lt;/sup&gt; (up to 50 ppb) produce significant delay in the development of the estuarine mudcrab &lt;i&gt;Rhithropanopeus harrisii&lt;/i&gt; Gould. It is clear that the effect of lead dominates the effect of zinc with regard to the toxicity of a mixture of the two metals. Some combinations of the two metals, however, neutralize the toxic effect of lead and even accelerates the larval growth.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhithropanopeus harrisii (Gould; 1841).
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3515

Les astérides (Echinodermata) de la Baie Breid (Côte de la Princesse Ragnhild, quartier Enderby, Antarctique), avec la description d'une nouvelle espèce de &lt;i&gt;Solaster&lt;/i&gt;
Provedor de dados: 27
Autores: Stampanato, S.; Jangoux, M.
Benthic surveys carried out from 1960 to 1967 in the Breid Bay by Belgian scientific expeditions yielded 28 species of asteroids. Among them one is new to science (&lt;i&gt;Solaster longoi&lt;/i&gt; n. sp.) and five are new for the Antarctic waters of the Enderby quadrant.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/303578.pdf

Présence de &lt;i&gt;Discosporangium mesarthrocarpum&lt;/i&gt; (Men.) Hauck à Port-Cros
Provedor de dados: 27
Autores: Augier, H.; Boudouresque, C.F.; Coppejans, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3543

Image analysis as a tool for measuring particulate matter concentrations and gut content, body size, and clearance rates of estuarine copepods: validation and application
Provedor de dados: 27
Autores: Billiones, R.G.; Tackx, M.L.M.; Flachier, A.T.; Zhu, L.; Daro, M.H.
The performance of image analysis in measuring suspended particulate matter concentrations was compared with that of the Coulter counter in different samples including latex spheres, diatoms and natural estuarine waters. The two techniques gave comparable numerical concentrations. Image analysis results also correlated positively with dry weight measurements of estuarine suspended particulate matter samples. The conversion of particle areas measured by image analysis into volumes was addressed by trying to determine the average height of the particles. This was done by plotting volume concentrations from the Coulter counter against area concentrations from image analysis. The resulting linear relationships were found to be significant in homogeneous...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Image analysis; Image analysis; Image analysis.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3992

Kolonisatie van de Europees-Atlantische kusten door de borstelkrab &lt;i&gt;Hemigrapsus penicillatus&lt;/i&gt; (de Haan, 1835)
Provedor de dados: 27
Autores: d'Udekem d'Acoz, C.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Introduced species Hemigrapsus penicillatus (de Haan; 1835) ANE; Belgium.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6946

Denitrification in marine sediments: a model study
Provedor de dados: 27
Autores: Middelburg, J.J.; Soetaert, K.; Herman, P.M.J.; Heip, C.H.R.
The rate and factors controlling denitrification in marine sediments have been investigated using a prognostic diagenetic model. The model is forced with observed carbon fluxes. bioturbation and sedimentation rates, and bottom water conditions. It can reproduce rates of aerobic mineralization, denitrification, and fluxes of oxygen, nitrate, and ammonium. The globally integrated rate of denitrification is estimated by this model to be about 230-285 Tg N yr&lt;sup&gt;-1&lt;/sup&gt;, with about 100 Tg N yr&lt;sup&gt;-1&lt;/sup&gt; occurring in shelf sediments. This estimate is significantly higher than literature estimates (12-89 Tg N yr&lt;sup&gt;-1&lt;/sup&gt;), mainly because of a proposed upward revision of denitrification rates in slope and deep-sea...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8415

High density flow-through culturing of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; on inert feeds: preliminary results with a modified culture system
Provedor de dados: 27
Autores: Brisset, P.; Versichele, D.; Bossuyt, E.; De Ruyck, L.; Sorgeloos, P.
A modified filter system is described for the intensive culturing of &lt;i&gt;Artemia&lt;/i&gt; in a continuously renewed medium. Extrapolated to a 1 m³ tank, 25 kg live weight &lt;i&gt;Artemia&lt;/i&gt; could be produced over a culture period of two weeks on a diet of micronized and defatted rice bran using the salt enriched effluent of an abandoned geothermal well as a culture medium.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Artemia.
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/261893.pdf

Effect of incubation time and concentration of animals in grazing experiments using a narrow size range of particles
Provedor de dados: 27
Autores: Tackx, M.; Polk, P.
Three concentrations of &lt;i&gt;A. tonsa&lt;/i&gt; adults were allowed to feed on a narrow size range suspension of particles. Sampling was done at 4-hour intervals during 24 hours. It is shown that both animal concentration and incubation time considerably influence the obtained ingestion rates and filtering-spectra. These results are discussed in relation to different calculation methods and models.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grazing; Incubation.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3192

Seasonal fluctuations and production of nematode communities in the Belgian coastal zone of the North Sea
Provedor de dados: 27
Autores: Vincx, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological production Ecological aggregations Seasonal variations Nematoda [Nematodes] ANE; Belgium.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7098

Natuurbehoud in het mariene en kustzonemilieu: overzicht en analyse van de juridische mogelijkheden, met bijzondere aandacht voor het mariene en kustzonemilieu van België
Provedor de dados: 27
Autores: Cliquet, A.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/226808.pdf

Water quality modelling of the western Scheldt estuary
Provedor de dados: 27
Autores: Ouboter, M.R.L.; Van Eck, B.T.M.; Van Gils, J.A.G.; Sweerts, J.P.; Villars, M.T.
1n 1987 the National Institute for Coastal and Marine Management (the Netherlands) initiated the SAWES project (Systems Analysis WEstern Scheldt). The main goals of the project were to acquire knowledge with respect to the pollution problems in the Scheldt estuary and to apply this knowledge to management issues of the Scheldt on an operational level. The main interest was to understand quantitatively the relation between inputs of polluting substances and effects on the ecosystem. In the framework of the project, a water quality model for the Scheldt estuary was made. In 1995, the model area was expanded to include the Belgian coastal region at the mouth of the estuary. The model calculates the fate of discharged substances and establishes the relation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals Modelling Pollution Water quality ANE; Netherlands; Westerschelde.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7062

The nature and significance of gas-generated microvoids as 'secondary' microfabric features in modern and Pleistocene marine and estuarine sediments
Provedor de dados: 27
Autores: Wartel, S.; Parvingher Singh, S.; Faas, R.W.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sediment analysis.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3119

The leading role of ammonium in the nitrogen uptake regime of Southern Ocean marginal ice zones
Provedor de dados: 27
Autores: Goeyens, L.; Dehairs, F.A.; Tréguer, P.; Bauman, E.M.; Baeyens, W.F.J.
The nitrogen signature of marginal ice zones in the Southern Ocean often departs from the "classical" Antarctic nutrient profiles with high nitrate and low ammonium values in the surface layer. Weddell Sea marginal ice zones e.g. show enhanced nitrate depletions, amounting to similar to 500 mmol N m super(-2). Additionally, ammonium stocks in the upper layer can be up to 7% of the inorganic nitrogen pool. The corresponding nitrogen uptake regime suggests elevated nitrate assimilation during the early phase of the productive season and significantly reduced nitrate assimilation at a later stage. Absolute as well as specific nitrate uptake rates decrease by an order of magnitude when ammonium stocks exceed 1.7% of the total inorganic nitrogen. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal blooms Ammonium compounds Ice cover Marginal seas Nitrogen cycle Phytoplankton Primary production PS; Antarctic Ocean.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10188

Verspreidingspatronen van benthos, vissen en vogels in het Schelde-estuarium
Provedor de dados: 27
Autores: Ysebaert, T.; Meininger, P.L.M.; Hostens, K.; Maes, J.; Meire, P.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280699.pdf

The influence of aqueous copper chemistry on the uptake and toxicity of copper in &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Blust, R.; Bernaerts, F.; Van der Linden, A.; Thoeye, C.
The effect of organic complexation, salinity, and pH on the uptake and toxicity of copper in &lt;i&gt;Artemia&lt;/i&gt; was studied. The results were compared with data on the chemical speciation and lipid solubility of copper in saline solutions.The uptake experiments took 90 min and the toxicity tests 24h. A computer model was used to calculate the saline solution equilibrium speciation. The lipid solubility of copper was determined in a series of saline/olive oil partition tests.Complexation of copper by EDTA reduced the uptake and toxicity of copper. Salinity had no apparent effect on both processes. The results of these uptake and toxicity experiments agreed well with the copper speciation and lipid solubility data. The effect of pH on the uptake and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3164

Polyploidy in Proseriata (Plathyhelminthes) and its phylogenetical implications
Provedor de dados: 27
Autores: Martens, P.M.; Curini-Galletti, M.C.; Van Oostveldt, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Proseriata.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3187

A simple device for taking undisturbed sediment cores in shallow water
Provedor de dados: 27
Autores: Govaere, J.C.R.; Thielemans, L.K.
A light weight and handy sampler is designed for taking undisturbed sediment cores.
Tipo: Info:eu-repo/semantics/article
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3630

An overview of wet deposition of micropollutants to the North Sea
Provedor de dados: 27
Autores: Struyf, H.; Van Grieken, R.
An overview of the wet deposition of micropollutants (trace metals -Cd, Cr, Cu, Pb, Hg, Zn- and organic compounds -PAHs, PCBs, pesticides) to the North Sea and adjacent areas is presented. The results of (in)direct measurements of the wet flux are compared to modeling results. Attention is given to specific problems like revolatilization, sea-spray, contamination, gas-to-particle ratios in wet deposition of Hg and the organic substances. Also, the importance of wet deposition is weighted to that of dry deposition and non-atmospheric input routes to the North Sea. It is concluded that -especially for organic micropollutants- current knowledge is insufficient to yield an accurate and detailed image of the impact and importance of wet deposition to the North...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2785

The genus &lt;i&gt;Mungava&lt;/i&gt; Harding, 1962 (Crustacea: Ostracoda) from Indo-Pacific brackish waters, with the description of two new species
Provedor de dados: 27
Autores: Wouters, K.
&lt;i&gt;Mungava munda&lt;/i&gt; Harding, type-species of the genus &lt;i&gt;Mungava&lt;/i&gt;, and two new species, &lt;i&gt;M. papuensis&lt;/i&gt; sp. nov. and &lt;i&gt;M. intermedia&lt;/i&gt; sp. nov. are described and figured. A short supplementary description is given for &lt;i&gt;M. marthapuriae&lt;/i&gt; Keyser and &lt;i&gt;M. riseri&lt;/i&gt; Maddocks on the basis of their paratypes. The genus diagnosis is extended. The interspecific differences and the distribution of the actually known species of the genus &lt;i&gt;Mungava&lt;/i&gt; are discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/303537.pdf

Propriétés physico-chimiques des sédiments et des suspensions de la mer du Nord
Provedor de dados: 27
Autores: Wollast, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/254159.pdf

Fluctuaties in de lokale voedselbeschikbaarheid in relatie tot de populatiedynamiek van de Grote Stern, &lt;i&gt;Sterna sandvicensis&lt;/i&gt;: resultaten 1995-1996
Provedor de dados: 27
Autores: Stienen, E.W.M.; Brenninkmeijer, A.
Tipo: Info:eu-repo/semantics/book
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/258694.pdf

Interstitial and parasitic Platyhelminthes from the coast of the Seychelles
Provedor de dados: 27
Autores: Martens, E.E.; De Clerck, G.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists Coral reefs Platyhelminthes ISW; Seychelles; Bird I. ISW; Seychelles; Mahe.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6805

The flow-through column: a simple and multipurpose rearing device
Provedor de dados: 27
Autores: Mertens, J.; Persoone, G.
A simple flow-through system for culturing or colonization purpose is described. It consists of piled up petri-dishes placed on top of a water reservoir with an air-water lifting tube. Each of the seperately removable units is composed of the bottom of a petri-dish glued on top of the lid of another one. A short piece of plastic tubing, fitting tightly into an exentrically drilled hole in the bottom part of the unit, permits a continuous flow of water through the whole column.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Experimental rearing; Instruments.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3454

Incorporation of brewery activated sludge-single proteins (BSCP) in diets for &lt;i&gt;Clarias gariepinus&lt;/i&gt; B. fingerlings
Provedor de dados: 27
Autores: De Muylder, E.; Van Damme, P.; Vriens, L.; Nihoul, R.; Ollevier, F.P.
Brewery activated sludge-cell protein (BSCP) was incorporated in high quality feeds for &lt;i&gt;Clarias gariepinus&lt;/i&gt; fingerlings at levels of 4-22%. BSCP incorporation was found to have a positive effect on the growth performance up to levels of 22%. The optimum concentration of BSCP in feeds for &lt;i&gt;Clarias gariepinus&lt;/i&gt; was 14%. The problems associated with the use of activated sludge are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Single cell proteins; Clarias gariepinus.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3170

Copepoda (Poecilostomatoida and Siphonostomatoida) from deep-sea hydrothermal vent areas off British Columbia, including &lt;i&gt;Amphicrossus altalis&lt;/i&gt;, a new species of Erebonasteridae, with notes on the taxonomic position of the genus &lt;i&gt;Tychidion&lt;/i&gt; Humes
Provedor de dados: 27
Autores: Humes, A.; Huys, R.
Amphicrossus altalis, n.sp., belonging to the primitive poecilostomatoid family Erebonasteridae, was found at a depth of 2420 m at the Juan de Fuca Ridge off British Columbia. The male of an Amphicrossus species is described for the first time. The new copepod differs from the two recognized species of Amphicrossus in its body surface being not highly ornamented with spinules, its smooth anterior surface of the labrum, and the dimensions of the fifth leg. New records for Benthoxynus spiculifer Humes, 1984, Aphotopontius forcipatus Humes, 1987, and Stygiopontius quadrispinosus Humes, 1987, are included. The clausidiid genus Tychidion is redescribed and its taxonomic position discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7246

Inventaire des algues marines benthiques de la Rade et des Îles d'Hyères (Méditerranée France)
Provedor de dados: 27
Autores: Belsher, Th.; Augier, H.; Boudouresque, C.F.; Coppejans, E.
A checklist of marine algae of Hyères Bay and Islands (Mediterranean, France). 335 taxa of Rhodophyceae, Phaeophyceae, Zygnematophyceae, Chlorophyceae and Bryopsidophyceae are listed; collecting sites are given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthic algae.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3564

International study on &lt;i&gt;Artemia&lt;/i&gt; : 35. Techniques to manipulate the fatty acid profile in &lt;i&gt;Artemia&lt;/i&gt; nauplii, and the effect on its nutritional effectiveness for the marine crustacean &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (M.)
Provedor de dados: 27
Autores: Léger, P.; Naessens-Foucquart, E.; Sorgeloos, P.
The importance of essential fatty acids for the early larval stages of cultured marine fish and crustacean larvae is well documented. In this regard, the variability in essential fatty acid content of their live prey &lt;i&gt;Artemia&lt;/i&gt; is critical.This paper describes different techniques for improving the fatty acid profile in &lt;i&gt;Artemia&lt;/i&gt; nauplii using microparticles and emulsions as enrichment diets. These diets can be applied during the incubation of the cysts and/or after the separation of the nauplii. After enrichment, the nauplii not only contain high levels of the essential fatty acid 20:5 omega 3 (up to 13.5% or 35.2 mg/g) but also considerable levels of 22:6 omega 3 (up to 7% or 18.1 mg/g), another essential fatty acid which...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Mysidopsis bahia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3184

Radiochemical study of Cd , Co and Eu coprecipitation with Iron Hydroxide in seawater
Provedor de dados: 27
Autores: Chakravorty, R.; Van Grieken, R.
The coprecipitation of Cd, Co and Eu from seawater onto ferric hydroxide was studied, using the radioactive tracers &lt;sup&gt;109&lt;/sup&gt;Cd, &lt;sup&gt;60&lt;/sup&gt;Co and &lt;sup&gt;152-154&lt;/sup&gt;Eu, as a function of the pH, the concentration of the collector iron, the concentration of the metal spike and the aging of the internally formed precipitate. For preconcentration purpose, a pH 9 and a 35 ppm iron concentration appeared to be suitable. At pH 8, the natural pH of seawater, the distribution coefficients for Cd, Co and Eu are 10&lt;sup&gt;4.5&lt;/sup&gt;, 10&lt;sup&gt;5&lt;/sup&gt; and 10&lt;sup&gt;7&lt;/sup&gt;, respectively.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cadmium; Coprecipitation; Radiochemistry; Sea water.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3236

A new species of &lt;i&gt;Gastrosaccus&lt;/i&gt; (Crustacea, Mysidacea) from Algoa Bay (South Africa)
Provedor de dados: 27
Autores: Deprez, T.; Wooldridge, T.; Mees, J.
&lt;i&gt;Gastrosaccus wittmanni&lt;/i&gt; sp. nov. was collected from surface-waters near Kings Beach in Algoa Bay (South Africa). Morphologically, it is characterised by having seven strong spines on each side of the telson. In between the strong spines, spinules are present except between the first most proximal pair. The endopod of the first female pleopod bears one terminal plumose seta. Most of the setae on antennules, antennae, thoracopods, pleopods and uropods are jointed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal appendages; Animal morphology; New species; Taxonomy; Gastrosaccus wittmanni; Mysida; Mysidacea.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8406

Maturation performance, offspring quality and lipid composition of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; females fed increasing levels of dietary phospholipids
Provedor de dados: 27
Autores: Cavalli, R.O.; Menschaert, G.; Lavens, P.; Sorgeloos, P.
The effects of increasing levels of dietary phospholipids (PL) on the reproductive performance, egg and larval quality, and lipid composition of females of the freshwater prawn &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; were investigated. Three isolipidic diets containing similar amounts of highly unsaturated fatty acids but varying levels of PL (0.8, 2.4 and 4.6%) were fed during 180 days to three groups of eight females originating from Thai ponds. No significant differences were observed for fecundity, egg size and hatchability, starved larvae size, and size, survival and tolerance to stress of 8 day-old larvae. Similarly, no major differences in the lipid composition of the midgut gland, ovaries and muscle tissue of females could be detected. Results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Brood stocks; Complex lipids; Diets; Eggs; Feed composition; Feeding experiments; Females; Prawn culture; Sexual maturity; Sexual reproduction; Macrobrachium rosenbergii; Thailand.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3347

Vibrios associated with &lt;i&gt;Litopenaeus vannamei&lt;/i&gt; larvae, postlarvae, broodstock, and hatchery probionts
Provedor de dados: 27
Autores: Vandenberghe, J.; Verdonck, L.; Robles-Arozarena, R.; Rivera, G.; Bolland, A.; Balladares, M.; Gomez-Gil, B.; Calderon, J.; Sorgeloos, P.; Swings, J.
Several bacteriological surveys were performed from 1994 to 1996 at different &lt;i&gt;Litopenaeus vannamei&lt;/i&gt; hatcheries (in Ecuador) and shrimp farms (in Mexico). Samples were taken from routine productions of healthy and diseased &lt;i&gt;L. vannamei&lt;/i&gt; larvae, postlarvae, and their culture environment and from healthy and diseased juveniles and broodstock. In Ecuador, the dominant bacterial flora associated with shrimp larvae showing symptoms of zoea 2 syndrome, mysis mold syndrome, and bolitas syndrome has been determined. Strains were characterized by Biolog metabolic fingerprinting and identified by comparison to a database of 850 &lt;i&gt;Vibrio&lt;/i&gt; type and reference strains. A selection of strains was further genotypically...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemotaxonomy Fingerprinting Genotypes Larvae Pathogenic bacteria Photobacterium damsela Shrimp culture Vibrio mimicus Litopenaeus vannamei Vibrio alginolyticus Vibrio harveyi Vibrio parahaemolyticus Ecuador ISE; Ecuador Mexico.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4037

Bijdrage tot de kennis van de zwemvogels te Oostende en omgeving: 1. Zeeduikers en futen op de Spuikom te Oostende (1950-1969)
Provedor de dados: 27
Autores: Becuwe, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1970
URL: http://www.vliz.be/imisdocs/publications/277116.pdf

Changes in the fish fauna of the Oosterschelde estuary: a ten-year time series of fyke catches
Provedor de dados: 27
Autores: Hamerlynck, O.; Hostens, K.
Frequency of occurrence of fish species was monitored on a fortnightly basis in four fykes and a weir in the Oosterschelde estuary from 1979 through 1988. This was done in order to record changes in the fish fauna that may have occurred as a response to the construction of a storm-surge barrier in the mouth of the Oosterschelde (1984-1986) and the concomitant building of compartmentalization dams in the landward part. These compartmentalization dams reduced the freshwater inflow into the system. Principal component analysis using the annual averages in frequency of occurrence suggests a slight shift occurred in the fish community separating a cluster of years 1979-1984 from the cluster 1985-1988. Many of the changes in individual species could be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fyke nets Storm surge barriers ANE; Netherlands; Oosterschelde.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2584

Synopsis of the families and genera of the Hydromedusae of the world, with a list of the worldwide species
Provedor de dados: 27
Autores: Bouillon, J.; Boero, F.
This report provides a systematic review of the pelagic Hydrozoa, Siphonophores excluded; diagnoses and keys are given for the different families and genera with a short description of their hydroid stage where known; a list of the world-wide hydromedusae species is established.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/303069.pdf

Integraal waterbeheer in Vlaanderen: concept, methodologie en structuren: eindrapport
Provedor de dados: 27
Autores: Bergmans, A.; Coenen, M.; Konings, P.; Loots, I.; Meire, P.; Schneiders, A.; Sys, M.; Van Bockstal, P.; Van der Welle, J.; Verheyen, R.F.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Methodology Water management Water policy Belgium; Flanders.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/259953.pdf

Optimized feeding regimes in shrimp hatcheries
Provedor de dados: 27
Autores: Leger, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2842

Experimentally induced infections of European eel &lt;i&gt;Anguilla anguilla&lt;/i&gt; with &lt;i&gt;Anguillicola crassus&lt;/i&gt; (Nematoda, Dracunculoidea) and subsequent migration of larvae
Provedor de dados: 27
Autores: Haenen, O.L.M.; Grisez, L.; De Charleroy, D.; Belpaire, C.; Ollevier, F.P.
Migration patterns of third-stage &lt;i&gt;Anguillicola crassus&lt;/i&gt; larvae, and pathogenesis of the lesions induced by third-stage larvae, was investigated in European eel &lt;i&gt;Anguilla anguilla&lt;/i&gt; L. Young elvers (1g) were fed infected &lt;i&gt;Paracyclops fimbriatus&lt;/i&gt; (Copepoda). Eel samples were collected and examined histologically at varying intervals during 6 mo post-infection period. Third-stage larvae (L-III) migrated directly through the intestinal wall and body cavity to the swimbladder within 17h post-infection. L-IV larvae were detected 3 mo post-infection, and immature adults were detected within 4 mo post-infection. The parasites occasionally showed aberrant migration paths. Pathological effects caused by the parasite...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larvae Life cycle Pathology Anguilla anguilla (Linnaeus; 1758) Anguillicola crassus.
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/3029.pdf

Carbon, nitrogen, oxygen, and hydrogen-stable isotope ratios in &lt;i&gt;Artemia&lt;/i&gt; from different geographical origin
Provedor de dados: 27
Autores: Schimmelmann, A.; Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3747

Maritime boundary agreements: the case of Belgium
Provedor de dados: 27
Autores: Franckx, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/277156.pdf

Subtidal meiofauna of the North Sea: a review
Provedor de dados: 27
Autores: Heip, C.H.R.; Herman, R.; Vincx, M.
The present state of knowledge on North Sea subtidal meiofauna is discussed. From an ecological point of view, mainly the hardbodied meiofauna taxa Nematoda and Copepoda have been studied to any extent. A short review of relevant taxonomic studies of these groups is also presented, together with a list of the known North Sea nematode and harpacticoid species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos Harpacticoida Nematoda [Nematodes] ANE; North Sea.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3373

De zandwinning in de Belgische kustwateren
Provedor de dados: 27
Autores: Vanosmael, C.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bottom fauna Coastal waters Dredging Ecological effects Environmental effects Exploitation Water quality ANE; Belgium; Belgian Coast.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6998

Inventaire et zonation des organismes sur les brise-lames de la côte belge
Provedor de dados: 27
Autores: van der Ben, C.; van der Ben, D.; Van Goethem, J.; Daro, M.H.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breakwaters Community composition ANE; Belgium; Belgian Coast.
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/255358.pdf

Macroalgae associated with the mangrove vegetation of Gazi Bay (Kenya)
Provedor de dados: 27
Autores: Coppejans, E.; Gallin, E.
Three transects through the mangrove, at right angles to the coastline and at increasing distance from the sea were studied. A number of pneumatophores was collected along each transect, the epiphytic vegetation identified and quantified, and the data analyzed with different mathematical techniques. It was concluded that: 1) the lowest algal cover on each pneumatophore is in the basal zone (0-5 cm above the substratum); the cover of the other zones is not significantly different; 2) the total cover of the pneumatophores from one transect diminishes from the seaward margin towards the land (due to increasing desiccation in higher zones); 3) there are no significant differences between the epiphytic vegetation on &lt;i&gt;Sonneratia&lt;/i&gt; and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mangroves ISW; Kenya; Gazi Bay.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3162

Een integrale 3D benadering van kleitektonische vervormingen en de ontwikkeling van een nieuwe 3D oppervlaktemodelleringsmethode = An integrated 3D approach to clay tectonic deformation and the development of a new 3D surface modelling method
Provedor de dados: 27
Autores: Verschuren, M.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/226574.pdf

The work of the media in whale strandings
Provedor de dados: 27
Autores: Noël, L.
The stranding of sperm whales at the Belgian coast in November 1994 attracted the general attention of the media. Excessive shows of passion often encountered in other parts of the world when cetaceans die, were not observed. An examination of the articles which appeared in the press shows that the event was merely treated as a major, but common news item. Priority was given to the daily developments. The work of the authorities and that of the scientists were given similar status as the anecdotic aspects. The importance given to controversies regarding the management of the situation must be stressed. The media did not go deeply into the biology of sperm whales, the stranding that occurred abroad, or the various hypotheses that were discussed. How could...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environment; Environment; Media; Stranding.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303630.pdf

High density culturing of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Sorgeloos, P.
Simple to construct and inexpensive high density culturing techniques are described for culturing 2000 &lt;i&gt;Artemia&lt;/i&gt; nauplii in 1-1 bottles; 25,000 in 1-1 bottles and 50,000 in 30-1 plastic sheet cylinders. Frozen &lt;i&gt;Dunaliella&lt;/i&gt; or dried &lt;i&gt;Scenedesmus&lt;/i&gt; cells are used as food. Growth results of these high density cultures are comparable with the best growth data reported in literature. The latter however refer to low-density experiments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia culture; Methods; Artemia.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3464

A revision of Thompsonulidae Lang, 1944 (Copepoda: Harpacticoida)
Provedor de dados: 27
Autores: Huys, R.; Gee, J.M.
The harpacticoid copepod subfamily Thompsonulinae Lang, 1944, formerly recognized as belonging to the family Tachidiidae (Lang, 1948) is raised to family rank and redefined to include only the genera Thompsonula T. Scott and Caribbula gen. nov. Thompsonula hyaenae (I. C. Thompson) and T. curticauda (Wilson) are redescribed and refigured. Re-examination of the original material showed that Wilson's Rathbunula agilis is synonymous with T. curticauda and not with T. hyaenae, as suggested by Lang (1948). It is now clear that the two species of Thompsonula have distinct distributions, T. curticauda being confined to the North American continent and T. hyaenae to western Europe and the Mediterranean. The genus Caribbula is established to accommodate the type...
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7185

Taxonomy and biogeography of the shallow-water Mysidacea of the Western Indian Ocean
Provedor de dados: 27
Autores: Deprez, T.; Mees, J.; Wooldridge, T.; Vincx, M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Mysidacea ISW; West Indian Ocean.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/226700.pdf

Discrete suspended particles of barite and the barium cycle in the open ocean
Provedor de dados: 27
Autores: Dehairs, F.A.; Chesselet, R.; Jedwab, J.
Barite particles are a universal component of suspended matter in the Atlantic and Pacific Oceans. This is demonstrated by scanning electron microscope and electron microprobe analyses of samples collected during the GEOSECS program. These discrete particles, about 1 µm in diameter, account for by far the greatest part of the total particulate barium of most of the filters collected at different depths. Total particulate barium (mean value: 20 ng/kg seawater) was measured on the same filters by instrumental neutron activation analysis.Several observations indicate that biochemical, rather than purely chemical, processes are involved in the formation of the BaSO4 mineral in the water column. Sr/Ba molar ratios among the individual barite grains,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Barite; Barium.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/228699.pdf

Observations sur la dérive des courants au large de la côte belge au moyen de flotteurs de fond
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Currents (water) Crangon crangon [brown shrimp] ANE; Belgium; Belgian Coast.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289065.pdf

Aspects of the biology and feeding ecology of the orbiculate cardinal fish &lt;i&gt;Sphaeramia orbicularis&lt;/i&gt; (Cuvier, 1828) (Teleostei: Apogonidae) in a Kenyan mangrove forest
Provedor de dados: 27
Autores: Mees, J.; Mwamsojo, G.U.; Wakwabi, E.O.
The orbiculate cardinal fish &lt;i&gt;Sphaeramia orbicularis&lt;/i&gt; is the most abundant teleost among the root system of the extensive mangrove forests bordering Gazi Bay, Kenya. The species was never recorded from the bay proper and it can thus be considered to be a true mangrove resident. The sampled population clearly consisted of two cohorts: the modes were approximately 65mm and 80 mm. Most individuals with standard lengths &gt;40mm had mature gonads ; the number of eggs ranged from 4,700 to 10,000. &lt;i&gt;S. orbicularis&lt;/i&gt; are carnivores, mainly feeding on small epi- and hyperbenthic crustaceans. Numerically, gammaridean amphipods and tanaids were the dominant prey categories in the stomachs of both size classes. Individuals belonging to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding behaviour; Apogonidae [Cardinalfishes]; Sphaeramia orbicularis [orbiculate cardinalfish]; Teleostei; Kenya.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4024

Improved estimation of f-ratio in natural phytoplankton assemblages
Provedor de dados: 27
Autores: Elskens, M.; Goeyens, L.; Dehairs, F.A.; Rees, A.; Joint, I.; Baeyens, J.
Statistical properties in non-linear regression models of &lt;i&gt;f&lt;/i&gt;-ratio versus nitrate relationships were investigated using a case study conducted at the European continental margin (Project OMEX). Although the OMEX data fit within the family of empirical models introduced by Platt and Harrison (1985) Nature 318, 55&amp;#x2013;58), it is shown that the discrepancy between experimental and fitted values is larger than expected, assuming that the data are accurate. Since the ambient ammonium concentration plays a leading role in regulating new production, the present analysis was extended to include explicitly the effect of ammonium on &lt;i&gt;f&lt;/i&gt;-ratio versus nitrate plots. Experimental results based on controlled ammonium additions...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10269

Ceramonematidae (Nematoda) de fonds vaseux profonds de Méditerranée
Provedor de dados: 27
Autores: Vitiello, P.; Haspeslagh, G.
Representatives of the family Ceramonematidae (Cobb, 1933) were found untill now mainly in shallow sandy bottoms. The five species mentioned hereunder, from which four are new ones were recovered from mud in the « Golfe du Lion » (Mediterrranean) at a depth of 310-580 m. A male specimen of &lt;i&gt;Ceramonema chitwoodi&lt;/i&gt; De Coninck, 1942 is described. Two new species are added to the genus &lt;i&gt;Metadasynemella&lt;/i&gt;: &lt;i&gt;M. falciphala&lt;/i&gt; and &lt;i&gt;M. cassidiniensis&lt;/i&gt;. &lt;i&gt;Pselionema deconincki&lt;/i&gt; sp.n. is the first species of this genus with vacuolisations in the cuticle. &lt;i&gt;Pselionema minutum&lt;/i&gt; sp.n. is a very small species.
Tipo: Info:eu-repo/semantics/article
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/294778.pdf

La flore et la faune du Bassin de Chasse d'Ostende (1937-1938)
Provedor de dados: 27
Autores: Leloup, E.; Miller, O.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Ecology Fauna Flora ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1940
URL: http://www.vliz.be/imisdocs/publications/305341.pdf

The mangrove vegetation of Gazi Bay (Kenya)
Provedor de dados: 27
Autores: Gallin, E.; Coppejans, E.; Beeckman, H.
The mangrove of Gazi Bay (at approximately 50 km south of Mombasa) is not directly under the influence of freshwater: the two small rivers discharging in the bay are seasonal and seepage is restricted to some points. The inferior and medians parts are inundated at each high tide, the superior parts at spring high tide. The vegetation shows different aspects: an almost monospecific &lt;i&gt;Sonneratia alba&lt;/i&gt; mangal close to the lagoon, a species rich (6 spp.) mixed mangal along the tide channel and another almost monospecific &lt;i&gt;Avicennia marina&lt;/i&gt; mangal on the drier parts. The depressions between the parallel dunes along the tide channel have a different vegetation depending upon their distance from the channel (becoming poorer...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecological zonation Mangrove swamps Plant populations Avicennia marina [grey mangrove] Sonneratia alba ISW; Kenya; Gazi Bay.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3021

Bottom friction dissipation in the Belgian coastal regions
Provedor de dados: 27
Autores: Luo, W.; Monbaliu, J.; Berlamont, J.
The effect of bottom friction dissipation and of the different formulations used for this term on the wave evolution has been investigated in the Belgian coastal regions. Two eddy viscosity models for the bottom friction dissipation, the Madsen et al. (1988) model and Weber's (1991 a) model have been implemented in the Cycle 4 version of the third generation WAM model (Gunther et al., 1992). The wave conditions for the area of the southern North Sea were hindcasted for the February 1993 storm. The results are compared with buoy data. It is found that the net effect of bottom friction dissipation on the significant wave height hindcast is quite big, in the order of 80% (of the wave height when the bottom friction dissipation is taken into account) along the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal waters Wave dissipation ANE; Belgium.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2937

&lt;i&gt;Probosciphontodes&lt;/i&gt; n. gen., a new genus of the family Ancorabolidae, with the description of two new species (Copepoda, Harpacticoida)
Provedor de dados: 27
Autores: Fiers, F.
The new genus &lt;i&gt;Probosciphontodes&lt;/i&gt; n. gen. is erected for two new ancorabolid species: &lt;i&gt;P. stellata&lt;/i&gt; n. sp. and &lt;i&gt;P. ptenopostica&lt;/i&gt; n. sp. The former was found in sediment samples from the Comoros, the latter in samples from the northern coast of Papua New Guinea.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/303559.pdf

Mollusques et Brachiopodes recueillis en 1908 par la mission Bénard dans les mers du Nord (Nouvelle-Zemble, Mer de Barents, Mer Blanche, Océan Glacial, Norvège, Mer du Nord)
Provedor de dados: 27
Autores: Dautzenberg, Ph.; Fischer, H.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiopoda [Lamp shells] Molluscs PN; Arctic.
Ano: 1911
URL: http://www.vliz.be/imisdocs/publications/241918.pdf

Tantulocarida (Crustacea: Maxillopoda): a new taxon from the temporary meiobenthos
Provedor de dados: 27
Autores: Huys, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7224

Measurement of the adenylate energy charge in &lt;i&gt;Nereis diversicolor&lt;/i&gt; and &lt;i&gt;Nephtys&lt;/i&gt; sp. (Polychaeta: Annelida): evaluation of the usefulness of AEC in pollution monitoring
Provedor de dados: 27
Autores: Verschraegen, K.; Herman, P.M.J.; Van Gansbeke, D.; Braeckman, A.
ATP-content and adenylate energy charge (AEC) ratios were determined in two polychaete species (&lt;i&gt;Nereis diversicolor&lt;/i&gt; and &lt;i&gt;Nephtys&lt;/i&gt; sp.), sampled in ten stations along the heavily polluted Western Scheldt estuary (N. Belgium, S. Holland). The samples were taken between 27 December 1982 and 6 January 1983. &lt;i&gt;Nereis diversicolor&lt;/i&gt; was also sampled in an unpolluted brackish water pond, and subjected to artificial stress by drying the organisms on filter paper. Adenine nucleotide levels were determined using the firefly bioluminescence reaction. The light emission was measured with the integration mode. As the "Constant Light Signal" reagent used contained APM and probably ADP itself, both myokinase and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AMP ATP Efficiency Pollution monitoring Annelida [segmented worms] Nephtys Nereis diversicolor [estuary ragworm] Belgium; Zeeschelde.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3282

La toxicité de trois herbicides sur l'écosystème aquatique
Provedor de dados: 27
Autores: Benijts-Claus, C.; Persoone, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3516

A new species of &lt;i&gt;Parthenope&lt;/i&gt; Weber (Crustacea: Brachyura: Parthenopidae) from the Pacifc coast of Mexico
Provedor de dados: 27
Autores: Hendrickx, M.E.; Landa-Jaime, V.
A new species of Parthenopidae from the East Pacific belonging to the genus &lt;i&gt;Parthenope&lt;/i&gt; Weber is described and illustrated. &lt;i&gt;Parthenope johngarthi&lt;/i&gt; n. sp. was collected along the west coast of Mexico, off the coast of Jalisco and Colima. &lt;i&gt;Parthenope johngarthi&lt;/i&gt; is readily distinguished from species of other genera of Parthenopidae from the East Pacific by the shape of the tuberculate carapace, the relative lenght and shape of the chelipeds, and the shape and relative size of segments of walking legs. It is closely related to &lt;i&gt;P. exilipes&lt;/i&gt; (Rathbun, 1893) but differs from the latter by its slender and almost smooth walking legs, its slender and less densely tuberculate chelipeds, and by...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303567.pdf

A revision of &lt;i&gt;Cylinula&lt;/i&gt; and two new species of &lt;i&gt;Cylindropsyllus&lt;/i&gt; (Copepoda, Harpacticoida, Cylindropsyllidae)
Provedor de dados: 27
Autores: Huys, R.; Willems, K.
Males of two new species of Cylindropsyllus Brady, 1880 (Cylindropsyllidae) are described. Cylindropsyllus ibericus sp. n. is based on a single specimen from Portugal previously misidentified as C. laevis Brady, 1880; C. govaerei sp. n. is reported from Corsican shell-gravel. The boreomediterranean distribution of C. laevis is confirmed and a key to the species of Cylindropsyllus is presented. Redescriptions are provided for the two species of Cylinula Coull, 1971, the type species C. proxima Coull, 1971 and C. arganoi Cottarelli and Venanzetti, 1989. The relationships of Cylindropsyllus, Cylinula and Evansula Sars, 1909 are briefly discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7262

La frontière maritime récemment établie entre la Belgique et les Pays-Bas
Provedor de dados: 27
Autores: Franckx, E.
This article deals with the territorial sea and continental shelf delimitation agreements reached on the 18th December 1996 between belgium and the Netherlands. It shows what the various bones of contention that have delayed the signing of these agreements for several years were and highlights in detail how they were overcome (mouth of the Escaut river, Wielingen, Rassen shallows, Zeebrugge harbour).
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7967

A comparison of fast destruction methods for the determination of trace metals in biological materials
Provedor de dados: 27
Autores: Luyten, S.; Smeyers-Verbeke, J.; Massart, D.L.
In clinical chemistry it can be very useful to have a rapid method for the determination of trace elements in biological material available. Because the classical wet digestion method which is generally used for the destruction of biological materials requires much attention, two procedures were tried which should be less time consuming or require less attention. The two new procedures which are the soluene (a quaternary ammonium hydroxide) method of Jackson (1) and the method of Adrian (2) utilizing pressure were applied to the determination of Cu and Zn in human brain tissue and in fish meal by atomic absorption spectroscopy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical analysis; Trace metals.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3474

Intercalibration exercise on the qualitative and quantitative analysis of fatty acids in &lt;i&gt;Artemia&lt;/i&gt; and marine samples used in mariculture
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
An international intercalibration exercise was conducted to evaluate the accuracy of the ICES Standard Methodology for fatty acid analysis in a sample of &lt;i&gt;Artemia&lt;/i&gt; and a formulated dry feed. Results were received from 11 of the 20 laboratories to which samples were sent. Five participants followed the Standard Method, five their own in-house method and one laboratory compared their own in-house method with the Standard Method. Total lipid content was reported by eight participants.&lt;p&gt;The average intra-laboratory variation in the determination of total lipid content was only 3.6% (CV) for the dry feed and 4.0% for the &lt;i&gt;Artemia&lt;/i&gt; nauplii. The inter-laboratory variation was somewhat higher being 5.2% for the dry feed and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2539

Considérations sur l'état bactériologique de quelques plages belges
Provedor de dados: 27
Autores: Dartevelle, Z.
Beach samples from the Belgian coast and the Nieuwpoort Channel have been examined for (a) coliform and other common bacteria and (b) more serious pathogens, to determine from their distribution the influence of season, tide, presence of human and other animals and of effluent. There were more coliforms in summer than in spring. State of tides had no significant effect on coliform numbers. The dry sand above HWM, occupied by holidaymakers, was as polluted as intertidal sand. Sand in the Channel near a sewage outfall was rich in coliforms. &lt;i&gt;Salmonella paratyphi &lt;/i&gt; B was also found, but no &lt;i&gt;Shigella&lt;/i&gt; spp., although &lt;i&gt;Shigella phages&lt;/i&gt; were present.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteriology ANE; Belgium; Belgian Coast.
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/295207.pdf

A cladistic re-assessment of the &lt;i&gt;Polycystis&lt;/i&gt; species complex (Polycystididae, Eukalyptorhynchia)
Provedor de dados: 27
Autores: Artois, T.J.; Schockaert, E.R.
The taxonomy of the genus &lt;i&gt;Polycystis&lt;/i&gt; Koelliker, 1845 &lt;i&gt;sensu&lt;/i&gt; Schockaert &amp; Karling, 1975 is discussed. Character analysis reveals the monophyletic state of the three species groups these authors defined within it. As no synapomorphies for the three groups can be found, the genus is split in three genera: &lt;i&gt;Polycystis&lt;/i&gt; Koelliker, 1845, &lt;i&gt;Macrorhynchus&lt;/i&gt; Graff, 1882 and &lt;i&gt;Paulodora Marcus&lt;/i&gt;, 1948. The systematic position of &lt;i&gt;Macrorhynchus yaganus&lt;/i&gt; (Marcus, 1954) Evdonin, 1977 is also discussed, resulting in the erection of the new genus &lt;i&gt;Marcusia&lt;/i&gt; gen. n.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phylogenetics; Taxonomy; Eukalyptorhynchia; Plathelminthes; Polycystididae; Polycystis.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6815

High-density production of the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; in a recirculation system: consideration of water quality, zootechnical and nutritional aspects
Provedor de dados: 27
Autores: Suantika, G.; Dhert, Ph.; Nurhudah, M.; Sorgeloos, P.
Rotifers were reared on the artificial diet culture Selco® in batch and recirculation conditions at different water exchange rates. The different rearing conditions resulted in considerable changes in water quality, which in their turn affected rotifer growth and food consumption. At a daily water exchange rate of 100%, no positive effect was obtained in rotifer growth compared to the batch rearing system, but the rotifer culture period could be prolonged by 1 week. By increasing the daily water exchange rate from 100 to 300% the maximum rotifer density could be significantly (&lt;i&gt;P&lt;/i&gt; &lt; 0.05) increased from 1800 to 2500 individuals ml&lt;sup&gt;-1&lt;/sup&gt;. At the highest recirculation rate (daily water exchange of 500%) the highest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture systems; Batch culture; Population density; Recirculating systems; Water quality; Zooplankton culture; Brachionus plicatilis; Rotifera.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=44

Projekt Zee eindverslag: 3. Hydrodynamische modellen = Projet Mer rapport final: 3. Modèles hydrodynamiques
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Ronday, F.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266927.pdf

Quelques Chlorophyceae et Phaeophyceae marines nouvelles pour la flore belge, provenant du Bassin de Chasse d'Oostende
Provedor de dados: 27
Autores: Coppejans, E.; Gillis, J.
Description of 5 seaweeds, new for the Belgian flora, collected in May 1982 in the Sluice Dock of Ostend. There are 3 Chlorophyceae: &lt;i&gt;Enteromorpha kylinii, E. ralfsii, Ulva scandinavica&lt;/i&gt;, and 2 Phaeophyceae: &lt;i&gt;Ectocarpus confervoides&lt;/i&gt; var. &lt;i&gt;confervoides, Punctaria latifolia&lt;/i&gt;. The last, rather infrequent species is studied in detail.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records New species Chlorophyceae Ectocarpus confervoides Enteromorpha kylinii Bliding; 1948 Enteromorpha ralfsii Harvey; 1851 Phaeophyceae [brown algae] Punctaria latifolia Greville; 1830 Ulva scandinavica Bliding; 1968 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3372

Semi-intensive culturing in fertilized ponds
Provedor de dados: 27
Autores: Tackaert, W.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2905

Experimental alteration of the &lt;i&gt;Nautilus&lt;/i&gt; shell by factors of diagenesis and metamorphism: II. Amino acid patterns in the conchiolin matrix of the pyrolysed modern mother-of-pearl
Provedor de dados: 27
Autores: Voss-Foucart, M.F.; Grégoire, Ch.
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/295212.pdf

Observations on the ultrastructure of the proboscis epithelia in &lt;i&gt;Polycystis naegelii&lt;/i&gt; Kölliker (Turbellaria Eukalyptorhynchia) and some associated structures
Provedor de dados: 27
Autores: Schockaert, E.R.; Bedini, C.
The epithelium of the anterior tip of the bodywall, of the proboscis cavity and of the proboscis cone in &lt;i&gt;Polycystis naegelii&lt;/i&gt; has been studied with the electron microscope. These epithelia are formed by six syncytial belts separated from each other by cellular limits: one belt belongs to the epidermis, three line the cavity and two cover the cone. The posterior belt of the cavity and those of the cone are of the insunk type bringing about a peculiar relationship between the latter two. Moreover, they are associated with muscular elements under the basal cone belt but above its basement membrane. Nine different kinds of glands have been observed erupting at the surface of the epithelia in the studied area, while six different sorts of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Skin; Ultrastructure; Polycystis naegelii.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6984

Note sur des &lt;i&gt;Aporrhais pespelicani&lt;/i&gt; L. (Mollusque gastéropode marin) provenant de l'Adriatique et recueillis vivants à Ostende
Provedor de dados: 27
Autores: Kermarrec-Labisse, N.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Introduced species New records Aporrhais pespelecani (Linnaeus; 1758) [Pelican's foot] ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/276865.pdf

Successful application of a new combined culture and enrichment diet for the mass cultivation of the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; at commercial hatchery scale in Monaco, Yugoslavia, France and Thailand
Provedor de dados: 27
Autores: Komis, A.; Candreva, P.; Franicevic, V.; Moreau, V.; Van Ballaer, E.; Léger, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachionus plicatilis Müller; 1786.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262324.pdf

Contribution à la connaissance de la faune marine de la côte belge: 6. L'influence de la lumière sur la fixation d'&lt;i&gt;Ostrea edulis&lt;/i&gt; (L) et de &lt;i&gt;Crepidula fornicata&lt;/i&gt; (L) sur les collecteurs d'huîtres
Provedor de dados: 27
Autores: Bracke, E.; Polk, P.
The difference of phototropism and phototaxis of both molluscs influenced their fixation. The orientation of both molluscs is towards the incoming light-direction, less pronounced when the light-density to the center of the tile is decreasing. The density of the populations of oysters is increasing towards the center of the tiles by decreasing light-intensity, the density of the &lt;i&gt;Crepidula&lt;/i&gt;-population decreasing towards the center of the collector.  The competition of both organisms in relation to space, is, under the opposed influence of the light, less than described in the literature. Theoretically it is possible to separate &lt;i&gt;Crepidula&lt;/i&gt; and oyster-fixation, using this property. Statistical analysis corroborated our...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Introduced species Larval settlement Oyster culture Pest control Crepidula fornicata (Linnaeus; 1758) Ostrea edulis Linnaeus; 1758 ANE; Belgium; Belgian Coast ANE; Belgium; Oostende; Sluice Dock.
Ano: 1969
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3441

Dry and wet deposition fluxes of Cd, Cu, Pb and Zn into the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Rojas, C.M.; Injuk, J.; Van Grieken, R.; Laane, R.W.P.M.
During the period from September 1988 to October 1989, 23 sampling flights were carried out over the Southern Bight of the North Sea. In the campaign, both bulk and size-segregated airborne particulate matter samples were collected. Dry deposition velocities for Cd, Cu, Pb and Zn have been estimated using a modified version of the two-layer of Slinn and Slinn and the particle size distribution obtained from size-fractionated samples. Results pointed out that the main difference between our results and those reported in the literature lies in the aerosol size distribution. Dry deposition rates calculated using these deposition velocities as a function of wind sector showed that continental air masses, particularly those associated with the wind sector west...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2745

Early postlarval fish in the hyperbenthos of the Dutch Delta (south-west Netherlands)
Provedor de dados: 27
Autores: Beyst, B.; Mees, J.; Cattrijsse, A.
Early (post)larval fish constitute a significant part of the temporary hyperbenthos, i.e. of the fauna living in the lower reaches of the water column close to the substratum. Information on the densities and spatial and temporal variations of these stages, as well as on their lengths at the moment of occurrence, can be an important contribution to the knowledge of their dispersion, migrations and to the identification of possible bottlenecks in their recruitment. Therefore the hyperbenthos of the Voordelta, a shallow coastal zone in front of the Dutch Delta, as well as that of the subtidal channels and the intertidal brackish marsh creeks of the Westerschelde Estuary, was sampled monthly during one year by means of a sledge and a stow net. A total of 37...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition; Deltas; Dominant species; Ecological distribution; Estuaries; Intertidal environment; Juveniles; Marine fish; Nursery grounds; Pleuronectes; Population density; Salt marshes; Sprattus sprattus; Wetlands; Zoobenthos; Clupea harengus; Dicentrarchus labrax [Bass]; Solea solea [Sole].
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3979

Essai de bilan du transfer de l'azote dans le Bassin de Chasse d'Ostende: 2. Le rôle du zooplankton dans le cycle de l'azote
Provedor de dados: 27
Autores: Podamo, J.
1.The zooplankton of the Sluice-dock at Ostend consists essentially of calanoid copepods and larvae of benthic animals. 2. The greatest part of the biomass (95 %) consists of 4 species: &lt;i&gt;Eurytemora affinis, Acartia bifilosa&lt;/i&gt; and larvae of &lt;i&gt;Polydora ciliata&lt;/i&gt; and &lt;i&gt;Crepidula fornicata&lt;/i&gt;. 3. All these species are herbivorous; the secondary production has been measured only of these four species; 4. All measurements were expressed as wet weights; the expression of the biomasses, production and excretion in terms of nitrogen, was calculated by means of correction factors found in the literature.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3486

Ecologie van de vrijlevende mariene nematoden van de Voordelta (zuidelijke bocht van de Noordzee)
Provedor de dados: 27
Autores: Vanreusel, A.
This study forms part of a global research project, which aims to evaluate the effect of the Delta works on the ecosystem of the Dutch Delta. The Dutch Delta is the sublittoral region along the coast of the south of the Netherlands, from the Belgium border in the south to the Hoek van Holland in the north. Off shore, the area is arbitrary limited by the 10m depth line. From north to south, the Nieuwe Waterweg, the Haringvliet, Lake Grevelingen, the Eastern Scheldt and the Western Scheldt debouch into this part of the Southern Bight of the North Sea. As a result of the tidal currents and the thereon coupled transport of the sediments, a heterogenous pattern of banks and channels has evolved. The hydrodynamic regime and the bottom morphology have changed...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/226581.pdf

New family of deep-sea planktonic copepods, the Paralubbockiidae (Copepoda: Poecilostomatoida)
Provedor de dados: 27
Autores: Boxshall, G.; Huys, R.
The deep-sea planktonic copepod &lt;i&gt;Paralubbockia longipedia&lt;/i&gt; is redescribed from the type specimens, and a new family of Poecilostomatoida is proposed to accommodate it. The Paralubbockiidae fam. nov. is characterized by two unique plesiomorphies, the ventrally located fifth legs and the retention of a separate maxillulary palp, and by the apomorphic states of the endopods of the swimming legs and of the antenna. The sister group of the Paralubbockiidae is identified as the family Oncaeidae. These are the only two poecilostomatoid families that have retained a vestige of the geniculation mechanism in the antennules of the male. The genus Laitmatobius Humes is here regarded as incertae sedis within the lineage comprising the Oncaeidae and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oncaeidae; Paralubbockiidae.
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/266825.pdf

Characterization of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; from Cam Ranh Bay in Central Vietnam
Provedor de dados: 27
Autores: Quynh, V.D.; Lavens, P.; Léger, P.; Tackaert, W.; Sorgeloos, P.
&lt;i&gt;Artemia&lt;/i&gt; cysts collected from inoculation experiments in Cam Ranh salterns are evaluated for their potential use in aquaculture. Cyst biometrics, hatching quality, naupliar fatty acid profile and naupliar growth were measured and compared to reference &lt;i&gt;Artemia&lt;/i&gt; strains. Cyst characteristics reveal that the parthenogenetic strain (PR China) used in inoculations, was eliminated from the environment and that the remaining brine shrimp are likely to be composed of Macau and Great Salt Lake &lt;i&gt;Artemia&lt;/i&gt; strains, and of their cross-breds. Differences in cyst diapause deactivation characteristics between Macau and Great Salt Lake &lt;i&gt;Artemia&lt;/i&gt; may have resulted in the disappearance of Macau...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts Inoculation Inoculation Quality Salt lakes Artemia ISEW; Viet Nam; Cam Ranh Bay.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3244

Overzicht van de brakwatermollusken van België
Provedor de dados: 27
Autores: Dumoulin, E.
A survey of the actual brackish-water malacofauna of Belgium is presented. Two regions have been investigated: a) the coastal area and b) the Belgian part of the Western Scheldt, downstreams of Antwerp. The following species were recorded: &lt;i&gt;Hydrobia ulvae, Hydrobia ventrosa, Potamopyrgus antipodarum, Assiminea grayana, Alderia modesta, Limapontia depressa, Ovatella myosotis, Leucophytia bidentata&lt;/i&gt; and &lt;i&gt;Cerastoderma glaucum&lt;/i&gt;. &lt;i&gt;Tergipes tergipes, Tenellia adspersa&lt;/i&gt; and &lt;i&gt;Eubranchus&lt;/i&gt; sp., three species which are known from literature, could not be rediscovered during the present investigation. On the other hand, a current revision of &lt;i&gt;Hydrobia ventrosa&lt;/i&gt; from the collections of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater molluscs Check lists Molluscs ANE; Belgium ANE; Belgium; Zwin Belgium Belgium; Het Zwin natuurreservaat.
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/242958.pdf

Analyse des systèmes marins. Construction d'un modèle mathématique interdisciplinaire
Provedor de dados: 27
Autores: Nihoul, J.C.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266896.pdf

Variations spatiales et temporelles de la concentration bactérienne dans les eaux du sud-est de la mer du Nord
Provedor de dados: 27
Autores: Joiris, C.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/271802.pdf

Aquaculture and its role in integrated coastal zone management: handbook of contributions and extended abstracts presented at the International Workshop on "Aquaculture and its role in Integrated Coastal Zone Management" Oostende, Belgium, April 19-21, 2001
Provedor de dados: 27
Autores: Burnell, G.M.; Goulletquer, P.; Mees, J.; Seys, J.; Stead, S.
Tipo: Info:eu-repo/semantics/book
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/261510.pdf

Morphological and morphometric study of crustacean parasites within the genus &lt;i&gt;Lernaeocera&lt;/i&gt;
Provedor de dados: 27
Autores: Van Damme, P.A.; Ollevier, F.P.
Two species of &lt;i&gt;Lernaeocera&lt;/i&gt; are present in the southeastern North Sea. &lt;i&gt;Lernaeocera lusci&lt;/i&gt; infects bib &lt;i&gt;Trisopterus luscus&lt;/i&gt;, dragonet &lt;i&gt;Callionymus lyra&lt;/i&gt; and sand goby &lt;i&gt;Pomatoschistus minutus. L. minuta&lt;/i&gt; is a junior synonym of &lt;i&gt;L. lusci.&lt;/i&gt;. The second valid species, &lt;i&gt;L. branchialis&lt;/i&gt;, infects whiting &lt;i&gt;Merlangius merlangus&lt;/i&gt;. The two species can be morphologically separated by the antennary processes, which are present in &lt;i&gt;L. lusci&lt;/i&gt; and absent in &lt;i&gt;L. branchialis&lt;/i&gt;. Discriminant functions allow complete separation between &lt;i&gt;L. lusci&lt;/i&gt; and &lt;i&gt;L. branchialis&lt;/i&gt;. There...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lernaeocera Blainville; 1822.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3130

Bijdrage tot de kennis der mariene fauna van de Belgische kust (III). Waarnemingen aangaande het voorkomen, de voortplanting, de settling en de groei van &lt;i&gt;Crepidula fornicata&lt;/i&gt; (L.)
Provedor de dados: 27
Autores: Polk, P.
1. For the first time, &lt;i&gt;Crepidula fornicata&lt;/i&gt; was observed in Belgium on 28-9-1911; in 1959, it became an oyster pest. 2. It was first introduced into Belgium with seed oysters from Great Britain. Later on, with seed oysters from the Netherlands. 3. Probably, the geographical spreading is caused by the adult animals attached to oysters. Larval propagation is responsible for local extension. 4. In the sluice-dock at Ostend, larvae occur from the middle of May till the end of November; they swim freely for a period of about 12 days. The first massive emission of larvae is observed during May and June, a second one in September. 5. The larvae settle preferentially at a depth of 65 cm. 6. Maximum settling takes place in May. It then decreases...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Introduced species Crepidula fornicata (Linnaeus; 1758) ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1962
URL: http://www.vliz.be/imisdocs/publications/256254.pdf

Toxicity of cadmium to free-living marine and brackish water nematodes (&lt;i&gt;Monhystera microphthalma, Monhystera disjuncta, Pellioditis marina&lt;/i&gt;)
Provedor de dados: 27
Autores: Vranken, G.; Vanderhaeghen, R.; Heip, C.H.R.
Cadmium toxicity to 3 marine and brackish-water nematodes (&lt;i&gt;Monhystera microphthalma, M. disjuncta, Pellioditis marina&lt;/i&gt;) was estimated under static tests. These nematodes are very resistant to cadmium poisoning. LC 50 values are extremely time-dependent; an exposure time of 96 h underestimates the degree of toxicity. For &lt;i&gt;M. disjuncta&lt;/i&gt; LC 50 values were 21.1 and 18.4 ppm after 192 and 264 h respectively. &lt;i&gt;P. marina&lt;/i&gt; was much more tolerant to cadmium in comparison with the monhysterids and had LC 50 values of 90.5 ppm at 120, and of 77.0 ppm at 192 h. It is argued that MEC values based on mortality and on a developmental assay in which success in attaining the adult stage was studied, turned out to be very...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cadmium Estuarine organisms Heavy metals Lethal effects Marine organisms Mortality Toxicity Toxicity tests Monhystera disjuncta Monhystera microphtalma de Man; 1880.
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/299058.pdf

Contribution à l'étude de la sexualité chez certains Labridae et Sparidae (Téleostéens perciformes)
Provedor de dados: 27
Autores: Remacle, C.
The histological indication of protogyny are a rare occurrence among the three species of &lt;i&gt;Symphodus (labridae)&lt;/i&gt; studied: &lt;i&gt;Symphodus (Crenilabrus) ocellatus, S. (C.) cinereus&lt;/i&gt; and &lt;i&gt;S. (C.) mediterraneus&lt;/i&gt;. Amongst 299 studied fish, only one &lt;i&gt;S. (C.) mediterraneus&lt;/i&gt; of 96 mm of standard length had ovocytes in the seminifery tubes of its testicles. Among &lt;i&gt;Dentex macrophtalmus&lt;/i&gt; (Sparidae), we found no indication of hermaphrodism. Lipidic cell islands were found in the testicles of these four species, constantly among the vocytes in the seminifere tubes of its testicles, among &lt;i&gt;Dentex macrophtalmus&lt;/i&gt;, and during the sexual rest, among certain...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Labridae [Wrasses]; Sparidae [Porgies].
Ano: 1970
URL: http://www.vliz.be/imisdocs/publications/289055.pdf

Structure of meiofauna communities in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Herman, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic communities Meiobenthos ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/314459.pdf

The diversity of nematode communities in the southern North Sea
Provedor de dados: 27
Autores: Heip, C.H.R.; Decraemer, W.
The diversity of nematode communities along the Belgian coast is influenced by the median grain size and the percentage of silt of the sediment, as &lt;i&gt;H&lt;/i&gt; = 0.84 +10. 96&lt;i&gt;Md&lt;/i&gt; -0.013&lt;i&gt;S&lt;/i&gt;. The influence of the outlet of a small stream, the IJzer, is also clearly visible in the low diversity of communities situated to the north-east of the mouth, which is the direction of the prevailing currents. The predominating species in low-diversity communities appear to be generalists, while high specialization seems to be the rule for nematode communities as a whole.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity Brackishwater pollution Community composition Nematoda [Nematodes] ANE; Belgium; Belgian Coast ANE; Belgium; IJzer R. ANE; North Sea; Southern Bight.
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3482

&lt;i&gt;Triebelina ? pustulata&lt;/i&gt; Keij, 1974 from the Maldive Islands: more homeomorphy in the ornate Bairiidae (Ostracoda)
Provedor de dados: 27
Autores: Maddocks, R.F.; Wouters, K.
The male anatomy of &lt;i&gt;Triebelina ? pustulata&lt;/i&gt; Keij, 1974 suggests affinities to &lt;i&gt;Paranesidea&lt;/i&gt; rather than to &lt;i&gt;Triebelina&lt;/i&gt;. It appears that as many as six lineages may have produced ornate reefal Bairdiidae: &lt;i&gt;Glyptobairdia, Triebelina, Mydionobairdia, Havanardia, Pterobairdia&lt;/i&gt; and &lt;i&gt;Triebelina ? pustulata&lt;/i&gt; and related species.
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/303526.pdf

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichtyan fishes. Part A: Selachii. 3: Order: Squaliformes - Families: Echinorhinidae, Oxynotidae and Squalidae
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
The teeth of nearly all supraspecific taxa of squaliformes are described and illustrated by SEM photos. The tooth morphology allows a direct assignment to all these taxa and some proposals of taxonomic adjustments. The results support opinions of other authors, that Echinorhinidae represent a separate order, Oxynotidae coincide odontologically with Squalidae; Squalid genera could be grouped into 8 subfamilies, 4 of which could not be defined hitherto; &lt;i&gt;Centroselachus&lt;/i&gt; Garman, 1913 is confirmed and should be revalidated; significant odontological differences do not exist between &lt;i&gt;Cirrhigaleus&lt;/i&gt; and &lt;i&gt;Squalus, Lepidorhinus&lt;/i&gt; and &lt;i&gt;Centrophorus, Scymnodon&lt;/i&gt; and &lt;i&gt;Scymnodalatias&lt;/i&gt;,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Identification keys; Teeth; Squalidae [Dogfish sharks].
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/294441.pdf

Spermiogenesis and spermultrastructure in &lt;i&gt;Thylacorhynchus ambronensis&lt;/i&gt; (Schizorhynchia, Kalyptorhynchia, Platyhelminthes)
Provedor de dados: 27
Autores: Watson, N.A.; Schockaert, E.R.
Comprehensive ultrastructural investigation of spermiogenesis and the mature sperm in &lt;i&gt;Thylacorhynchus ambronensis&lt;/i&gt; revealed a number of features valuable for cladistic analysis. Two basal bodies lie on either side of an intercentriolar body in the zone of differentiation of the spermatid, but only one develops into a normal flagellum while the other remains as a small bud, eventually disappearing. Structures within and surrounding the two basal bodies differ, and, contrary to observations in another monoaxonemal schizorhynch (&lt;i&gt;Baltoplana magna&lt;/i&gt;), the two basal bodies become separated and only that of the normal flagellum is carried distally from the cytophore which unites an isogenic group of spermatids. A spiralling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phylogeny Kalyptorhynchia Plathelminthes Schizorhynchia Thylacorhynchus ambronensis Schilke; 1970 Turbellaria [Flatworms].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6811

Maturation of &lt;i&gt;Penaeus vannamei&lt;/i&gt; by using dry pellets as a partial substitute of the natural diet
Provedor de dados: 27
Autores: Verstraete, P.; De La Mora, B.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2657

Revision of the genus &lt;i&gt;Leucocythere&lt;/i&gt; Kaufmann, 1892 (Crustacea, Ostracoda, Limnocytheridae) with the description of a new species and two new tribes
Provedor de dados: 27
Autores: Danielopol, D.L.; Martens, K.; Casale, L.M.
The main aim of the present contribution is to provide an unequivocal diagnosis of the genus &lt;i&gt;Leucocyhtere&lt;/i&gt;. It appeared, however, that this could only be effected when embodied in a broader taxonomic framework. The subfamily Limnocytherinae is thus divided into four tribes: Limnocytherini, Dinarocytherini, Cytheridellini and Leucocytherini and diagnoses are provided for these taxa. The latter two are new to science while the rank of Dinarocyhterini was changed from subfamily to tribe. Three genera are lodged in the Leucocytherini: &lt;i&gt;Leucocythere&lt;/i&gt; Kaufmann, 1892, Potamocythere Schornikov, 1986 and &lt;i&gt;Ovambocythere&lt;/i&gt; Martens, 1989. The former, nominate, genus is characterized and its type species, &lt;i&gt;L....
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/129339.pdf

Végétation marine de l'Ile de Port-Cros (Parc National): 14. &lt;i&gt;Myrionema liechtensternii&lt;/i&gt; Hauck (Phaeophyta-Chordariales), espèce nouvelle pour la flore algologique de France
Provedor de dados: 27
Autores: Coppejans, E.; Dhondt, F.
&lt;i&gt;Myrionema liechtensternii&lt;/i&gt; Hauck described in 1877 after material from the Adriatic has never been mentioned since. We found it several times while assorting phytosociological relevés from Port-Cros (Var) and Banyuls (Pyrénées Orientales, France). By this fact it becomes a new species for the French algological flora.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myrionema liechtensternii.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3547

&lt;i&gt;Polysiphonia nigra&lt;/i&gt; (Huds.) Batt. et &lt;i&gt;Antithamnion cruciatum&lt;/i&gt; (C. Ag.) Näg. var. &lt;i&gt;defectum&lt;/i&gt; Halos (Rhodophyta-Ceramiales) nouvelles pour la flore du Boulonnais (Pas-de-Calais; France)
Provedor de dados: 27
Autores: Coppejans, E.
During September 1981, male and female gametophytes and tetrasporophytes of &lt;i&gt;Polysiphonia nigra&lt;/i&gt; were collected at Wimereux (Pas-de-Calais, France). This seems to be a rather rare species generally. &lt;i&gt;Antithamnion cruciatum&lt;/i&gt; var. &lt;i&gt;defectum&lt;/i&gt; has also for the first time been found &lt;i&gt;in situ&lt;/i&gt; along the Boulonnais coast. Both taxa are described and their locality and range are reported.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Antithamnion cruciatum (C. Agardh) Nägeli; 1847 Polysiphonia nigra (Hudson) Batters; 1902 ANE; France; Nord; Pas-de-Calais.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3383

Caridean shrimps in the food of demersal fish off the Belgian coast. 3. Pleuronectiformes
Provedor de dados: 27
Autores: Nierynck, E.; Redant, F.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Demersal fisheries Food preferences Caridea [Shrimps] Pleuronectiformes ANE; Belgium; Belgian Coast.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/128960.pdf

Chitons de Tulear, Réunion, Maurice et Tahiti
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/296117.pdf

Geologische kenmerken van de suspensie en de sedimenten
Provedor de dados: 27
Autores: Gullentops, F.; Moens, M.; Ringele, A.; Sengier, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266906.pdf

A preliminary study of the marine algal communities on the islands of Milos and Sikinos (Cyclades-Greece)
Provedor de dados: 27
Autores: Coppejans, E.
This marine-phytosociological study of the two islands of Milos (1971) and Sikinos (1972), both belonging to the Cyclades, gives a general idea of the algal vegetation of the Aegean Sea. Comparative observations in the field as well as the analysis of many transects and the identification of collected material contributed to the recognition of some algal communities. The existence of other seasonal communities (especially winter ones) was indicated by the occurrence of a poor summer-aspect. Ecological requirements (such as light, exposure and slope) of the different algal communities were recorded and their vertical distribution was obtained from the transect data. Comparisons between these observations and conclusions were made with those of other authors...
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3489

The life-cycle of &lt;i&gt;Cyprideis torosa&lt;/i&gt; (Crustacea, Ostracoda)
Provedor de dados: 27
Autores: Heip, C.
The life-cycle of the dominant brackish water ostracod &lt;i&gt;Cyprideis torosa&lt;/i&gt; (Jones, 1850) has been studied during 4 years. The species has only one generation annually. Reproduction is fairly similar throughout the years and appears to be tuned in to temperature. The number of adults has one peak every year and can be described by two exponential functions, one for the increase and one for the decrease. Mortality is very similar every year and approximately constant for months. &lt;i&gt;Cyprideis torosa&lt;/i&gt; is on top of the food chain: regulation of numbers is probably not external and may be a function of the past of the habitat. A model is described which permits the evaluation of the duration of development from field data only....
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3551

Mangrove vegetation structure, dynamics and regeneration
Provedor de dados: 27
Autores: Dahdouh-Guebas, F.
The present PhD dissertation is composed of fourteen papers, preceded by a general introduction and followed by an epilogue that explains the entire research framework, including the links between the different case-studies, the local and global applicability of the results and the relevance of the work in the framework of development co-operation. The bulk of the research was carried out in four sites in Kenya and Sri Lanka: Gazi Bay and Mida Creek in Kenya, and Unawatuna-Galle and Pambala-Chilaw in Sri Lanka. After a revision of the often controversial issue of the floral composition of mangroves in Sri Lanka (SW coast), followed by a synthesis of image attributes in the interpretation of aerial photographs in Kenya and Sri Lanka, a series of...
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Mangroves Asia; Sri Lanka ISW; Kenya; Gazi Bay ISW; Kenya; Mida Creek.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/226691.pdf

Marine nematodes from Guadeloupe: IX. The genus &lt;i&gt;Metepsilonema&lt;/i&gt; (Epsilonematidae)
Provedor de dados: 27
Autores: Decraemer, W.; Gourbault, N.
Three new species of the genus &lt;i&gt;Metepsilonema&lt;/i&gt; Steiner are described from the Guadeloupe littoral marine interstitial habitats. &lt;i&gt;M. magdae&lt;/i&gt; sp. n. is significantly characterised by the pearl-like ornamentation of the distal edge of the posterior annules and by the shape and sexual dimorphism of the amphids. &lt;i&gt;M. clasingae&lt;/i&gt; sp. n. displays a noteworthy cuticular ornamentation with long posterior subdorsal spines, far more pronounced in juveniles. In &lt;i&gt;M. glutinosum&lt;/i&gt; sp. n. the ambulatory setae are glued together, even in juveniles. &lt;i&gt;M. bermudae&lt;/i&gt; Lorenzen described from Bermuda and reported from Galápagos, has been collected rather frequently in Lesser Antillae.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/303551.pdf

The tantulocaridan life cycle: the circle closed?
Provedor de dados: 27
Autores: Huys, R.; Boxshall, G.A.; Lincoln, R.J.
The discovery of a new stage in the life cycle of the Tantulocarida is reported. A sexual female, collected from a deep-sea harpacticoid copepod host, was removed from the trunk sac of the preceding tantulus larva. This female is a free-living and nonfeeding stage which presumably mates with the free-swimming adult male previously described. The female comprises a cephalothorax, probably incorporating 2 limbless thoracic somites, 2 free pedigerous trunk somites, and 3 limbless trunk somites. It also possesses paired antennules, the only well-defined cephalic appendages present at any stage in tantulocaridan life history. There is a median genital aperture, the copulatory pore, located ventrally on the cephalothorax at about the level of the incorporated...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7259

Nitrogen dynamics in the Westerschelde estuary (SW Netherlands) estimated by means of the ecosystem model MOSES
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.
A tentative nitrogen budget for the Westerschelde (SW Netherlands) is constructed by means of a simulation model with thirteen spatial compartments. Biochemical and chemical processes in the water column are dynamically modeled; fluxes of dissolved constituents across the water-bottom interface are expressed by means of diagenetic equations. The model is calibrated on a large amount of observed variables in the estuary (1980-1986) with relatively fine temporal and spatial detail. Additional constraints are imposed by the stoichiometric coupling of carbon, nitrogen and oxygen flows and the required conservation of mass. The model is able to reproduce rather well the observed distributions of nitrate, ammonium, oxygen and Kjeldahl nitrogen both in time and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical phenomena Chemical kinetics Denitrification Environmental monitoring Estuaries Mathematical models Nitrification Nitrogen Nitrogen cycle Organic matter Phytoplankton ANE; Netherlands; Westerschelde.
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/224384.pdf

The influence of light on the growth rate of larvae of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Sorgeloos, P.
&lt;i&gt;Artemia salina&lt;/i&gt; L. larvae grown in complete darkness showed a significant higher growth rate than those cultured under continuous illumination.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth rate; Larvae; Light effects; Artemia salina.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3458

&lt;i&gt;Syrticola mediterraneus&lt;/i&gt; n. sp., a harpacticoid copepod from the Bay of Calvi, Corsica
Provedor de dados: 27
Autores: Willems, K.A.; Claeys, D.; Fiers, F.
&lt;i&gt;Syrticola mediterraneus&lt;/i&gt; n. sp. belonging to the family Cylindropsyllidae Sars (&lt;i&gt;sensu&lt;/i&gt; Lang, 1948) is described from the Bay of Calvi (Corsica). The species is closely related to (?) &lt;i&gt;Notopontia galapagoensis&lt;/i&gt; Mielke, 1982 and &lt;i&gt;Syrticola flandricus&lt;/i&gt; Willems &amp; Claeys, 1982. The former species is now transferred to the genus &lt;i&gt;Syrticola&lt;/i&gt; as &lt;i&gt;Syrticola galapagoensis&lt;/i&gt; n. comb.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Bays Holotypes New species Copepoda [copepods] Harpacticoida Syrticola mediterraneus MED; France; Corsica; Calvi Bay.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3258

Data to be considered in descriptions of new species or redescriptions of poorly known species (addendum 2)
Provedor de dados: 27
Autores: Coomans, A.; De Coninck, L.A.P.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6986

La translocation des polluants dans l'écosystème marin: le problème de l'intoxication directe et indirecte par les métaux lourds
Provedor de dados: 27
Autores: Bouquegneau, J.-M.; Noël-Lambot, F.; Distèche, A.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/284242.pdf

Trace elements and individual particle analysis of atmospheric aerosols from the Antarctic peninsula
Provedor de dados: 27
Autores: Artaxo, P.; Rabello, M.L.C.; Maenhaut, W.; Van Grieken, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/303277.pdf

On the evolution of reproductive potentials in a brackish water meiobenthic community
Provedor de dados: 27
Autores: Heip, C.H.R.
The realized and intrinsic rates of increase of several meiobenthic populations are compared. The realized rate of increase is remarkably similar among four species of copepods, which leads to the conclusion that dominance is not a function of rate of increase or parameters influencing this rate. The result is investigated in the light of Vandermeer's (1975) Beta-competition. There is also a remarkable agreement between the values of the predator &lt;i&gt;Protohydra leuckarti&lt;/i&gt; and its principal prey &lt;i&gt;Tachidius discipes&lt;/i&gt;. The intrinsic rates of natural increase vary more, but are a linear function of temperature in all species investigated. This is in agreement with the theory that natural selection acts against nonlinear dynamic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackish water; Meiobenthos.
Ano: 1977
URL: http://www.vliz.be/imisdocs/publications/125861.pdf

Effet de la température dans les modèles chimiques et écologiques: impact des rejets thermiques
Provedor de dados: 27
Autores: Billen, G.; Elskens, I.; Smitz, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266413.pdf

Uitwisseling van nutriënten op het grensvlak sediment-waterkolom in de Spuikom van Oostende
Provedor de dados: 27
Autores: Thielemans, L.; Heip, C.H.R.; Van Gansbeke, D.; Braeckman, A.; Verdonckt, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6997

Styracothoracidae (Copepoda: Harpacticoida), a new family from the Philippine deep sea
Provedor de dados: 27
Autores: Huys, R.
A new family is proposed to accommodate Styracothorax gladiator, new genus, new species, collected from 2,050-m depth in the Philippine Sea. The Styracothoracidae is placed in the Cervinioidea on account of the fused rostrum, the setation of the antennary endopod, the reduction of the maxillulary exopod, and the uniramous fifth legs in at least the female. A suite of synapomorphies, including the subchelate maxilliped, suggests a sister-group relationship with the cave-dwelling Rotundiclipeidae. The primitive features of the Styracothoracidae and the phylogenetic relationships of the cervinioid families are discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7257

The nuclear rDNA region of &lt;i&gt;Gyrodactylus arcuatus&lt;/i&gt; and &lt;i&gt;G. branchicus&lt;/i&gt; (Monogenea: Gyrodactylidae)
Provedor de dados: 27
Autores: Zietara, M.S.; Arndt, A.; Geets, A.; Hellemans, B.; Volckaert, F.A.M.J.
The primary structure of the ribosomal DNA internal transcribed spacers (ITS-1 and ITS-2) and 5.8S rRNA gene were used to characterize and identify 2 monogenean species of &lt;i&gt;Gyrodactylus&lt;/i&gt; living externally on the threespine stickleback (&lt;i&gt;Gasterosteus aculeatus&lt;/i&gt;). The ITS region was amplified by PCR from freshwater, brackish, and marine isolates of &lt;i&gt;Gyrodactylus arcuatus&lt;/i&gt; and &lt;i&gt;G. branchicus&lt;/i&gt;, and the ends of the coding regions were identified by comparative alignment. No intraspecific and very low interspecific variation were observed in the 5.8S rRNA gene; high inter- and low intraspecific variation were revealed in the ITS-1 and ITS-2 regions. The morphological species identification was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA; Molecular structure; Nucleotide sequence; Taxonomy; Gasterosteus aculeatus.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8482

Notes sur les Céphalopodes: X. Sur quelques Céphalopodes de la mer d'Islande
Provedor de dados: 27
Autores: Adam, W.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cephalopoda ANE; Iceland.
Ano: 1939
URL: http://www.vliz.be/imisdocs/publications/297362.pdf

Four polymorphic microsatellite markers in the European eel &lt;i&gt;Anguilla anguilla&lt;/i&gt; (L.)
Provedor de dados: 27
Autores: Daemen, E.; Volckaert, F.A.M.J.; Cross, T.F.; Ollevier, F.P.
Clones (&lt;i&gt;Anguilla anguilla&lt;/i&gt;) were obtained from a size-selected library (300-800 bp HaeIII, PvuII, EcoRV-digested inserts), by hybridization with gamma super(32)P-labelled (dG-dT) sub(15). The sequences of the loci Aan01, Aan02, Aan03 and Aan04 have been submitted to GenBank/EMBL (acc. nos U67163, U67164, U67165 and U67166).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomarkers Genetics Anguilla anguilla (Linnaeus; 1758).
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2930

The new geological map of Flanders (Belgium)
Provedor de dados: 27
Autores: Jacobs, P.; De Ceukelaire, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2603

Refonte du genre &lt;i&gt;Pugnoides&lt;/i&gt; Weller S., 1910 (Rhynchonelloidea)
Provedor de dados: 27
Autores: Sartenaer, P.
Transverse serial sections made in specimens of the type series of the genus &lt;i&gt;Pugnoides&lt;/i&gt; have shown internal structures hitherto overlooked. From this results a new definition of the genus, a modified stratigraphic extension, the seperation of many species assigned to it and a new estimation of the analogies with genera considered as closely related.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fossils; Taxonomy; Brachiopoda [Lamp shells].
Ano: 1964
URL: http://www.vliz.be/imisdocs/publications/294272.pdf

Preservation and incubation time-induces biais in tracer aided grazing studies on meiofauna
Provedor de dados: 27
Autores: Moens, T.; Verbeeck, L.; Vincx, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7338

Mercury accumulation and speciation in Bangladesh marine fish
Provedor de dados: 27
Autores: Joiris, C.R.; Das, H.K.; Holsbeek, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Accumulation Mercury Speciation (biological) ISW; Bangladesh.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6824

The biogeochemical behaviour of Cd, Cu, Pb and Zn in the Scheldt estuary: results of the 1995 surveys
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Parmentier, K.; Goeyens, L.; Ducastel, G.; De Gieter, M.; Leermakers, M.
Cd, Cu, Zn and Pb concentrations in both dissolved and particulate phase were assessed during 1995. Data Quality Assurance was an integral part of this study and involved all major steps of the analysis procedure such as sampling, sample handling, preconcentration and determination. Desorption and redox processes clearly control the dissolved Cu and Cd profiles. Mobilisation of dissolved Zn is small and essentially restricted to the low salinity area and the late spring survey. Dissolved Pb shows the clearest dilution pattern. The parameters representative of these processes (dissolved oxygen and salinity) also correlate very well with the particulate metal profiles. In addition, the plankton activity (expressed by the chlorophyll-&lt;i&gt;a&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7046

An &lt;i&gt;r&lt;/i&gt;-strategist in Antarctic pack ice
Provedor de dados: 27
Autores: Bergmans, M.; Dahms, H.-U.; Schminke, H.K.
The Antarctic copepod &lt;i&gt;Drescheriella glacialis&lt;/i&gt;, an inhabitant of sea ice, is the first polar invertebrate metazoan to have been cultured throughout its life cycle. We describe its demographic characteristics on the basis of a laboratory cohort study and correlative field data. When compared to its closest temperate zone relatives, &lt;i&gt;D. glacialis&lt;/i&gt; shows temperate compensation of developmental and reproductive rates. A genuine &lt;i&gt;r&lt;/i&gt;-strategist in every respect, it does not fit established trends for Antarctic invertebrates but appears well adapted to the peculiar spatio-temporal variability.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polar waters Population structure Reproduction Reproductive cycle Sea ice Temperature effects Copepoda [copepods] Drescheriella glacialis PS; Antarctica PSW; Weddell Sea.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3111

Determination of methylmercury in natural waters by headspace gas chromatography with microwave-induced plasma detection after preconcentration on a resin containing dithiocarbamate groups
Provedor de dados: 27
Autores: Lansens, P.; Meuleman, C.; Leermakers, M.; Baeyens, W.F.J.
A method for the determination of methylmercury at ng 1&lt;sup&gt;-1&lt;/sup&gt; levels in natural waters is described. Methylmercury present in a sample is first preconcentrated on a column of a resin containing dithiocarbamate groups and eluted quantitatively with acidic thiourea solution. Methylmercury in the effluent is then converted to the iodide by addition of sulphuric acid and iodoacetic acid and determined by headspace gas chromatography with microwave-induced plasma detection. The adsorption properties of the resin are discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3092

The hydroid &lt;i&gt;Hydractinia echinata&lt;/i&gt; as a suitable bioassay species for low-reacting compounds
Provedor de dados: 27
Autores: Houvenaghel, G.T.
A bioassay with the hydroid &lt;i&gt;Hydractinia echinata&lt;/i&gt; was developed in order to assess the toxicity and environmental impact of low-reacting compounds like organosilicons or hydrocarbons. The hydroid's response to the toxicant was measured by the changes in its feeding rate. This technique is relatively easy to undertake, rapid, accurate, and not expensive.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioassays; Hydractinia echinata (Fleming).
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3266

Life history, food consumption and resource partitioning in two sympatric gobies &lt;i&gt;Pomatoschistus minutus&lt;/i&gt; and &lt;i&gt;P. lozanoi&lt;/i&gt; in the Belgian coastal waters
Provedor de dados: 27
Autores: Hamerlynck, O.; Heip, C.H.R.; Redant, F.
Gobies were obtained monthly from the bycatch of a commercial shrimp trawler operating in the shallow waters (less than 20m depth) of the Westdiep area, Southern Bight of the North Sea, from May through December 1984. &lt;i&gt;Pomatoschistus lozanoi&lt;/i&gt; juveniles appear later than &lt;i&gt;P. minutus&lt;/i&gt; juveniles, indicating a temporal segregation of reproduction. Yearly average density of &lt;i&gt;P. minutus&lt;/i&gt; is about twice that of &lt;i&gt;P. lozanoi&lt;/i&gt;. Food consumption by the two species amounts to 1-2 g AFDW/m&lt;sup&gt;2&lt;/sup&gt;/year. Stomach analysis of several hundred gobies shows that &lt;i&gt;P. minutus&lt;/i&gt; is a food generalist that obtains most of its food from the benthos and epibenthos. &lt;i&gt;P....
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Sympatric populations Pomatoschistus lozanoi (de Buen; 1923) [Lozano's goby] Pomatoschistus minutus (Pallas; 1770) [Sand goby] ANE; Belgium ANE; North Sea.
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/221008.pdf

Rhabdocoela (Platyhelminthes) from the Weddell Sea (Antarctica) with the description of eight new species
Provedor de dados: 27
Autores: Artois, T.; Vermin, W.; Schockaert, E.
In this contribution we present eleven species of Rhabdocoela (Platyhelminthes) collected during the Antarktis VII/4 (Epos leg. 3) expedition. Six of them belong to the family Trigonostomidae (Typhloplanoida). Five of these are new to science: &lt;i&gt;Trigonostomum messoplanoides&lt;/i&gt; n. sp., Proxenetes trispinosus n. sp., &lt;i&gt;Messoplana globulifera&lt;/i&gt; n. sp., &lt;i&gt;M minuta&lt;/i&gt; n. sp. and &lt;i&gt;M. spiralis&lt;/i&gt; n. sp. AII the species can be recognised from congeneric species by the shapes of their stylets. &lt;i&gt;Ceratopera axi&lt;/i&gt; (Riedl, 1954) Den Hartog, 1964 also was found and is discussed brief1y. The other five species belong to the family Polycystididae (Eukalyptorhynchia). Three of them are new to science...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eukalyptorhynchia Polycystididae Rhabdocoela Trigonostomidae Turbellaria [Flatworms] Typhloplanida PSW; Weddell Sea.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1860

A new deep sea coralline sponge from Turks and Caicos Islands: &lt;i&gt;Willardia caicosensis&lt;/i&gt; gen. &lt;i&gt;et&lt;/i&gt; sp. nov. (Demospongiae: Hadromerida)
Provedor de dados: 27
Autores: Willenz, P.; Pomponi, S.A.
A new coralline sponge, &lt;i&gt;Willardia caicosensis&lt;/i&gt;, assigned to the family Timeidae, is described from the deep fore reef off the Turks &amp; Caicos Islands, tropical western Atlantic Ocean, where it is common at depths ranging from 100 to 119 m. Individuals vary up to 15-20 cm in width. The relatively thin aragonitic skeleton is covered with delicate pillars up to + 1 mm. The living tissue is restricted to the spaces between pillars and a thin sheet lying above the calcareous skeleton. Exhalant canals converge upon regularly spaced central oscules on the sponge surface. Siliceous spicules include tylostyles and amphiasters which are secondarily embedded in the aragonitic moiety of the skeleton. In addition, ultrastructural characters of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coral; New genera; Sponges; Porifera [Sponges]; Timeidae.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303635.pdf

Do meiofauna consume primary production?: about many questions and how to answer them
Provedor de dados: 27
Autores: Moens, T.; Vincx, M.
In view of their densities, benthic meiofauna are potentially important consumers of primary production. Feeding on diatoms and other microalgae has been documented in a variety of benthic meiotaxa, including many species of the numerically dominant nematodes and harpacticoids. Still, a detailed account of the exact diet of most species, and of the quantitative importance of primary producers in it, is lacking. For nematodes, the presumed nutritive importance of diatoms mostly derives from rather hypothetical links between buccal morphology and food. On the basis of such links, the proportion of nematodes supposedly feeding on the diatoms may amount to as much as 85%, suggesting meiofauna to importantly graze on microalgae. In estuarine and shallow coastal...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3075

Free-living marine nematodes from the Southern Bight of the North Sea: 1. Notes on species of the genera &lt;i&gt;Gonionchus&lt;/i&gt; Cobb. 1920, &lt;i&gt;Neochromadora&lt;/i&gt; Micoletzky, 1924 and &lt;i&gt;Sabatieria&lt;/i&gt; Rouville, 1903
Provedor de dados: 27
Autores: Vincx, M.
The intraspecific variation of some nematode species from the Southern Bight of the North Sea is discussed.A redescription (or amplification) is provided for following species: &lt;i&gt;Gonionchus longicaudatus&lt;/i&gt; (Ward, 1972), &lt;i&gt;Neochromadora angelica&lt;/i&gt; Riemann, 1976, &lt;i&gt;N. munita&lt;/i&gt; Lorenzen, 1971, &lt;i&gt;N. paratecta&lt;/i&gt; Blome, 1974, &lt;i&gt;Sabatieria celtica&lt;/i&gt; Southern, 1914, &lt;i&gt;S. longispinosa&lt;/i&gt; Lorenzen, 1972, &lt;i&gt;S. punctata&lt;/i&gt; (Kreis, 1924).Following taxonomic changes are proposed: &lt;i&gt;Gonionchus villosus&lt;/i&gt; sensu Vincx, 1981 nec Cobb, 1920 is synonymized with &lt;i&gt;G. cumbraensis&lt;/i&gt; Benwell, 1981; &lt;i&gt;Neochromadora paramunita&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gonionchus cumbraensis; Gonionchus heipi; Gonionchus longicaudatus; Gonionchus villosus; Neochromadora angelica; Neochromadora munita; Neochromadora nicolae; Neochromadora paramunita; Neochromadora paratecta; Sabatieria breviseta; Sabatieria celtica; Sabatieria longispinosa; Sabatieria mortenseni; Sabatieria strigosa; Sabatieria vulgaris.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7032

Controlled production of &lt;i&gt;Artemia&lt;/i&gt; cysts under standard conditions in a recirculating culture system
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
A flow-through culture system is described for the controlled production of &lt;i&gt;Artemia&lt;/i&gt; cysts in 10 liter aquaria using 50 promille artificial seawater enriched with Fe-EDTA as culture medium, micronised rice bran as food source and cyclic flushes of the cultures with N&lt;sub&gt;2&lt;/sub&gt;-gas as induction mechanism for oviparity. The culture water is recirculated over a rotating biological contactor, a settling tank and a UV disinfection unit. Cysts are continuously harvested by filtration of the culture effluent. Production yields average 0.5 g dry cysts per day and per aquarium.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Artemia.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3267

Annotated and illustrated survey of the marine macroalgae from Motupore Island and vicinity (Port Moresby area, Papua New Guinea): 3. Rhodophyta
Provedor de dados: 27
Autores: Millar, A. J. K.; De Clerck, O.; Coppejans, E.; Liao, L. M.
The marine benthic red algae of Motupore Island and vicinity (Port Moresby area, Papua New Guinea [PNG]) are documented and 36 of the 161 species are illustrated. All records are listed with bibliographic, biogeographic, taxonomic and nomenclatural comments. Apart from several undescribed taxa, which we are in the process of describing separately, none is endemic to the island at this stage. The discovery of the east Australian species &lt;i&gt;Gracilaria rhodymenioides&lt;/i&gt; represents a substantial range extension as does &lt;i&gt;Ceramium lentiforme&lt;/i&gt; from New South Wales. One species of &lt;i&gt;Gibsmithia&lt;/i&gt; also represents a significant range extension from its Lord Howe Island, Norfolk Island and southern Great Barrier Reef...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/227367.pdf

Quantification of arginine requirements of juvenile marine shrimp, &lt;i&gt;Penaeus monodon&lt;/i&gt;, using microencapsulated arginine
Provedor de dados: 27
Autores: Chen, H.-Y.; Leu, Y.-T.; Roelants, I.
Using microencapsulated L-arginine, the quantitative requirement for amino acids has been determined for the first time for a shrimp species, which can not effectively utilize crystalline amino acids. In an 8 wk feeding trial (1990), juvenile &lt;i&gt;Penaeus monodon&lt;/i&gt; were fed casein based purified diets containing one of six levels (13.1, 17.7, 22.3, 26.9, 31.5 and 36.1 g/kg diet) of arginine. In addition to the protein-bound arginine already present in the casein of the test diets, pure arginine was supplemented by L-arginine microencapsulated in cellulose acetate phthalate, which is easily assimilated. The arginine level required for optimal growth was determined by broken-line model analysis of weight gain data to 25.0 g/kg diet (= 54.7 g/kg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus monodon [giant tiger prawn].
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2708

Dietary n-3 HUFA and DHA/EPA requirements of &lt;i&gt;P. vannamei&lt;/i&gt; postlarvae
Provedor de dados: 27
Autores: Naessens, E.; Van Hauwaert, A.; Cobo, M.L.; Townsend, S.; Ramos, X.; Wouters, R.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus vannamei.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2588

Deep-sea meiofauna communities in Antarctica: structural analysis and relation with the environment
Provedor de dados: 27
Autores: Vanhove, S.; Wittoeck, J.; Desmet, G.; Van den Berghe, B.; Herman, R.; Bak, R.P.M.; Nieuwland, G.; Vosjan, J.H.; Boldrin, A.; Rabitti, S.; Vincx, M.
The metazoan meiofauna in the region off Kapp Norvegia, Antarctica (Weddell Sea: 71°S, 12°W), was collected from depths between 211 and 2080m. Total meiofaunal abundance ranged from 815 to 5122 ind. per 10 cm² and total biomass from 126 to 966 µg dwt per 10 cm². Nematodes dominated the samples (range 83 to 97%) followed by harpacticoid copepods, polychaetes and kinorhynchs. A typical skewed length frequency distribution was obtained with most nematodes in the 0.4 to 0.6 mm size-class. The meiofauna communities were primarily influenced by bathymetric depth and food availability (e.g. organic matter and microbiota), which in turn are suggested to be directly related to phytoplankton blooms and associated sedimentation pulses. Standing stock and distribution...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2653

&lt;i&gt;Tridentulus&lt;/i&gt;, a new genus of Monhysteridae (Nematoda) from the Galápagos archipelago
Provedor de dados: 27
Autores: Eyualem, A.; Coomans, A.
&lt;i&gt;Tridentulus&lt;/i&gt; n. gen. is described from Isla Floreana, the Galápagos and its type and only species &lt;i&gt;Tridentulus floreanae&lt;/i&gt; (Eyualem &amp; Coomans, 1995) n. comb. redescribed. &lt;i&gt;Tridentulus&lt;/i&gt; n. gen., comes close to the genera &lt;i&gt;Monhystera&lt;/i&gt; Bastian, 1865, &lt;i&gt;Eumonhystera&lt;/i&gt; Andrássy, 1981 and &lt;i&gt;Sinanema&lt;/i&gt; Andrássy, 1960, but differs from all of them in a combination of two characteristics i.e. in having three small denticles situated posteriorly at the base of the stoma and an outstretched female reproductive system. The taxonomic position of the genus &lt;i&gt;Sinanema&lt;/i&gt; is also questioned.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/303496.pdf

Carbon and nitrogen isotopic composition of different strains of &lt;i&gt;Artemia&lt;/i&gt; sp.
Provedor de dados: 27
Autores: Spero, H.J.; Andreasen, D.J.; Sorgeloos, P.
Stable carbon and nitrogen isotope ratios have been determined on 41 strains of &lt;i&gt;Artemia&lt;/i&gt; sp. from different geographic regions around the world. The delta &lt;sup&gt;13&lt;/sup&gt;C and delta &lt;sup&gt;15&lt;/sup&gt;N values ranged between -13.7 to -25.0 per mil and -0.7 to 21.2 per mil respectively. &lt;i&gt;Artemia&lt;/i&gt; delta &lt;sup&gt;13&lt;/sup&gt;C values from coastal environments are consistent with a marine origin for the food source. &lt;i&gt;Artemia&lt;/i&gt; from inland salt lakes have a range of carbon isotope values suggesting C&lt;sub&gt;3&lt;/sub&gt;, C&lt;sub&gt;4&lt;/sub&gt; and CAM based organic matter could form the base of the &lt;i&gt;Artemia&lt;/i&gt; food chain. These data indicate that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2754

On the role of heterotrophic bacteria in marine ecosystems: some problems
Provedor de dados: 27
Autores: Joiris, C.
Resulting from synecological studies in some areas of the southern North Sea, a contradiction becomes evident between measurements of primary production and determinations of the activities consuming organic matter. In the Southern Bight, the consumption is 10 times higher than the production. This means that the primary production has been underestimated, and/or the consumption over-estimated. In order to discuss the validity of the methods used for determining the respiration activities, some results are presented: (a) during a 24-h cycle at the Sluice-Dock of Ostend, the variations of the oxygen concentration in the water are explained by the measured activities and diffusion fluxes; (b) two different methods are shown to give comparable results: the...
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3571

De rol van het zooplankton in de ekologie van de Spuikom te Oostende
Provedor de dados: 27
Autores: Polk-Daro, M.H.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/226588.pdf

Ossicle variation in Antarctic dendrochirote holothurians (Echinodermata)
Provedor de dados: 27
Autores: Massin, C.
A study of ossicle variation in Cucumariidae coming from the Weddell Sea (antarctica), the specimens ranging from 4 to 70 mm long, confirms that &lt;i&gt;Heterocucumis steineni&lt;/i&gt; (Ludwig, 1898), &lt;i&gt;Heterocucumis antarctica&lt;/i&gt; (Vaney, 1906) and &lt;i&gt;Heterocucumis godfroyi&lt;/i&gt; (Vaney, 1914) represent different stages of a single species: &lt;i&gt;H. steineni&lt;/i&gt;. A study of &lt;i&gt;Heterocucumis steineni, H. denticulata&lt;/i&gt; (Ekman, 1927) and &lt;i&gt;Staurocucumis liouvillei&lt;/i&gt; (Vaney, 1914) shows that the main ossicle change occurs early when specimens are 20 mm long or even less. A review of holothurian ossicle variation is given.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/303486.pdf

Simulation du cycle de l'azote à travers l'écosystème pélagique de la baie sud de la mer du Nord
Provedor de dados: 27
Autores: Pichot, G.
The present work aims at establishing a mathematical model which describes the seasonal evolution of the most characteristic constituents of the pelagic phase of the ecosystem in the southern bight of the North Sea. After the notions of system and model, as applied to the analysis of the marine environment, have been defined, the different analytical forms that are required to describe the various ecological interactions are explained and the principal ecological models which were published in the litterature are reviewed. They are divided into five distinct categories. The experimental data which have enabled the establishment of the mean yearly cycles of nitrogen through the different compartments of this particular ecosystem are then examined. These...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/226614.pdf

The respiration of five brackish-water harpacticoid copepod species
Provedor de dados: 27
Autores: Herman, P.M.J.; Heip, C.H.R.
The dependency of respiration rate on body weight at 20°C was determined for five meiobenthic copepods from a brackish-water habitat. The respiration rate of the four smaller species was generally high, = 10-14 nl O&lt;sub&gt;2&lt;/sub&gt;.h&lt;sup&gt;-1&lt;/sup&gt;.µg dry wt&lt;sup&gt;-1&lt;/sup&gt;, but was much lower for larger species, &lt;i&gt;Canuella perplexa&lt;/i&gt; T. &amp; A. Scott 1893 (2-3 nl O&lt;sub&gt;2&lt;/sub&gt;.h&lt;sup&gt;-1&lt;/sup&gt;.µg&lt;sup&gt;1&lt;/sup&gt;). This pattern is discussed in terms of the adaptive behaviour of the populations. The significance of respiration rates in the evolution of populations is illustrated by differences between the respiration rates of Belgian &lt;i&gt;Tachidius discipes&lt;/i&gt; Giesbrecht...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Respiration; Copepoda [copepods]; Harpacticoida.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3288

Etude écologique d'un brise-lames de la côte belge: 2. Biologie et développement saisonnier des espèces
Provedor de dados: 27
Autores: Daro, M.H.
In a previous publication we focussed on the description and the study of the zonation of the organisms and their living conditions on a wave-breaker in Knokke.  We showed that a certain number of dominant species are situated at exact levels of the wave-breaker, levels that we designated under the name of stages: 1. Algae stage2. Barnacle stage3. Mussel stage4. Tubularia stageEach of these stages is subdivided in characterised zones by particular associations of organisms. We described these organisms in the first part. We are interested in the second report to define the role of each of the partners of an association, emphasizing the biology and the ecology and the interaction between the different species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial substrata Biology Developmental stages Ecology Groynes Seasonal distribution Seasonal variations Molluscs ANE; Belgium; Belgian Coast.
Ano: 1970
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3444

Action antibiotique de quelques espèces phytoplanktoniques marines vis-a-vis de différentes salmonelles
Provedor de dados: 27
Autores: Aubert, J.; Joiris, Cl.
Fifteen phytoplankton species are tested to know antibacterial properties against different stock cultures of Salmonella, two species (&lt;i&gt;Chaetoceros teres&lt;/i&gt; and &lt;i&gt;Skeletonema costatum&lt;/i&gt;) showed an important antibiotic activity.
Tipo: Info:eu-repo/semantics/article
Ano: 1971
URL: http://www.vliz.be/imisdocs/publications/123788.pdf

Solid-phase extraction of ascorbic acid 2-sulfate from cysts of the brine shrimp &lt;i&gt;Artemia fransiscana&lt;/i&gt;
Provedor de dados: 27
Autores: Nelis, H.J.; Merchie, G.; Lavens, P.; Sorgeloos, P.; De Leenheer, A.P.
Two producers are described for the solid-phase extraction of ascorbic acid 2-sulfate from cysts of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; . The first one is based on reversed-phase ion pair extraction on an octadecylsilica cartridge using tetrabutylammonium as the counterion, followed by elution with methanol. In the second procedure ascorbic acid 2-sulfate is retained on a DEAE silica cartridge and eluted with 0.1M sodium salicylate. Both approaches were used as part of a quantitative reversed-phase ion pair liquid chromatographic method with detection at 254nm. The anion exchange extraction procedure is superior to its ion pair counterpart in terms of recovery (88.7±3,5% versus 63.0±12.7%), reproducibility (CVs of 3.6-7.7% versus 6.3-18.7%), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2643

Investigation of headspace and solvent extraction methods for the determination of dimethyl- and monomethylmercury in environmental matrices
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Leermakers, M.; Molina, R.; Holsbeek, L.; Joiris, C.R.
Aqueous distillation is a common initial step in the determination of monomethyl mercury (MMHg) in a variety of matrices. However, recently it was observed that during distillation, MMHg may be generated from inorganic mercury and induce in some cases significant analytical errors. Therefore we investigated a number of alternative analytical techniques for the determination of MMHg in sediments and biological tissues: (1) headspace-GC-AFS and some variants; (2) acid extraction-solvent extraction-GC-AFS; (3) acid extraction-solvent extraction-GC-ECD. Methods (2) and (3) showed MMHg generation when an inorganic Hg spike was added to the sediment sample. The headspace method yielded MMHg results in agreement with the reference values for biological and...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6829

Nitrogen cycles in a coastal open sea zone off the Belgian coast
Provedor de dados: 27
Autores: Baeyens, J.; Goeyens, L.; Dehairs, F.A.; Decadt, G.; Mommaerts, J.-P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal waters Nitrogen cycle ANE; Belgium; Belgian Coast.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10068

Nematode distribution in ocean margin sediments of the Goban Spur (northeast Atlantic) in relation to sediment geochemistry
Provedor de dados: 27
Autores: Soetaert, K.; Vanaverbeke, J.; Heip, C.H.R.; Herman, P.M.J.; Middelburg, J.J.; Sandee, A.; Duineveld, G.C.A.
Nematode density along a depth gradient (206-2760 m) in the northeastern Atlantic (Goban Spur) is linearly and positively related to organic matter mineralization in the sediment. It is estimated that nematodes contribute at most 13% to total carbon turnover, and this contribution decreases with water depth. The vertical distribution of nematodes in the sediment closely follows concentration &lt;i&gt;vs&lt;/i&gt; depth profiles of total nitrogen in the sediment. Both nematodes and total nitrogen tend to be more concentrated towards the surface with increasing water depth. There is no indication that nematode vertical distribution is directly influenced by the oxygen penetration in the sediment. However, it is hypothesized that the sediment oxygen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dissolved oxygen Ecological distribution Food availability Geochemistry Nitrogen Oxic sediments Population density Sediment chemistry Nematoda [Nematodes] ANE; Atlantic; Goban Spur.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8407

Systematics and evolution in Polycystididae (Turbellaria, Kalyptorhyncia)
Provedor de dados: 27
Autores: Schockaert, E.R.
Possible evolutionary trends within Polycystididae have been indicated by Karling (1956) while studying the male genital organs of seyeral turbellarian groups. For the moment his ideas seem the most valuable basis for establishing an intrafamiliar system of Polycystididae, and have hence been applied formally (Schockaert, 1974). However, it can be demonstrated with several examples that the underlying principles prove to be unsatisfactory when one tries to apply Hennig's methodology:-the subfamily Duplacrorhynchinae Schockaert &amp; Karling, 1970, can be recognized as containing the most plesimorph polycystidids; a synapomorph character that would give us an indication of the monophyly of this taxon is lacking;-the homology of some glandular elements (al!...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Evolution; Taxonomy; Polycystididae; Turbellaria [Flatworms].
Ano: 1977
URL: http://www.vliz.be/imisdocs/publications/238823.pdf

Comparison of phosphatidylcholine purified from soybean and marine fish roe in the diet of postlarval &lt;i&gt;Penaeus vannamei&lt;/i&gt; Boone
Provedor de dados: 27
Autores: Coutteau, P.; Kontara, E.K.M.; Sorgeloos, P.
The effects of adding two different types of phosphatidylcholine (PC) (purified from soybean lecithin, SPC, or marine fish roe, MPC) on growth, survival and osmotic stress resistance as well as lipid and fatty acid composition of postlarval &lt;i&gt;Penaeus vannamei&lt;/i&gt; was determined. PC was added at a level of 1.5% in a semi-purified diet containing similar levels of essential fatty acids (EFA). A PC-free diet served as the control treatment. The supplementation of 1.5% SPC significantly improved growth and reduced sensitivity to osmotic stress. &lt;i&gt;P. vannamei&lt;/i&gt;-fed MPC showed inferior growth compared to those fed SPC, but yielded better growth and survival than the PC-deprived shrimp. The addition of any of the PC types resulted in a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Complex lipids; Diets; Feeding experiments; Lipids; Neurotransmitters; Polyunsaturated fatty acids; Shrimp culture; Survival; Litopenaeus vannamei; Penaeus vannamei.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=37

Report on an intercalibration exercise on a short-term standard toxicity test with &lt;i&gt;Artemia&lt;/i&gt; nauplii (ARC-test)
Provedor de dados: 27
Autores: Vanhaecke, P.; Persoone, G.
Considering the necessity for standardization of toxicity tests and the need for simple and reliable routine tests, the &lt;i&gt;Artemia&lt;/i&gt; Reference Center at the State University of Ghent in Belgium has developed a short term standard toxicity test with &lt;i&gt;Artemia&lt;/i&gt; nauplii. This simple and inexpensive bioassay which can be used as a screening test to determine the toxicity of chemicals to aquatic organisms, has been discussed in detail during a special workshop devoted to toxicity tests with brine shrimp, at the occasion of the "International Symposium on the brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; salina&lt;/i&gt;"(Corpus Christi, Texas, USA; August 1979). Besides a few minor modifications, the test methodology was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intercalibration; Nauplii; Toxicity tests; Artemia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3377

Nursery culturing of bivalve spat in heated seawater
Provedor de dados: 27
Autores: Claus, C.; Van Holderbeke, L.; Maeckelberghe, H.; Persoone, G.
The controlled nursery culturing of mollusc spat produced to date by millions in commercial hatcheries is an intermediate step in mollusc farming which is receiving more and more attention. Different technologies for nursery culturing indoors as well as outdoors have been developed at different places.The principles are always basically the same and consist of culturing postlarvae of a few millimeters to a size of a few centimeters in densities as high as possible in specific devices containing seawater which is eventually enriched with live unicellular algae or inert foods. This paper reports on the first results obtained in Belgium in an indoor experimental nursery with spat of &lt;i&gt;Ostrea edulis, Crassostrea gigas&lt;/i&gt; and &lt;i&gt;Venerupis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mollusc culture; Spat; Bivalvia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3402

Effects of alkaline aluminate waste dumping on seawater chemistry
Provedor de dados: 27
Autores: Vandelannoote, R.; Van 't Dack, L.; Van Grieken, R.
The alkaline aluminate waste, of which 1000-2000 tonnes are dumped a few times a year off the Belgian coast in the Southern Bight of the North Sea, contains 5.4% NaCl, 1.8% dissolved Al and 7.4% NaOH, in addition to traces of heavy metals and some aniline- and phenol-derivatives. The pH rises locally to 8.5 and the total Al-concentration reaches 120 mg liter&lt;sup&gt;-1&lt;/sup&gt; (corresponding to an initial waste dilution factor of only 150) in the 10-m wide track just beyond the discharging barge, but these decay quickly to pH 8.1 and 1 mg liter&lt;sup&gt;-1&lt;/sup&gt; in the 30-m wide track, 500m behind the barge. The relation between the waste concentration and seawater pH was studied. The white precipitate that forms immediately in the sea was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alkalinity Aluminium Chemical oceanography Ocean dumping Pollution monitoring Waste disposal ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3211

The response of a harpacticoid copepod community to sediment disturbance in a semi-enclosed lagoon
Provedor de dados: 27
Autores: Thielemans, L.K.H.; Heip, C.H.R.
The harpacticoid fauna of a sandy sediment in the Sluice Dock of Ostend, Belgium, was dominated by a single species, &lt;i&gt;Canuella perplexa&lt;/i&gt;, that attained an average annual density of over 400 ind. 10 cm&lt;sup&gt;-2&lt;/sup&gt; in 1976 and 1977, whereas other species had a total mean density of less than 10 ind. 10 cm&lt;sup&gt;-2&lt;/sup&gt;. In the summer of 1979 a dystrophic crisis with abundant growth of &lt;i&gt;Ulva&lt;/i&gt; occurred and in March 1980 the lagoon was drained. After refilling of the lagoon, the sediment was immediately colonized by good swimming harpacticoids, that attained densities of 200 ind. 10 cm&lt;sup&gt;-2&lt;/sup&gt;. Three months after refilling &lt;i&gt;Canuella perplexa&lt;/i&gt; reappeared and the system...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavioural responses Colonization Ecosystem disturbance Inland lagoons Copepoda [copepods] ANE; Belgium; Oostende; Sluice Dock.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3274

Use of computer assisted sperm analysis (CASA) for monitoring the effects of pollution on sperm quality of fish: application to the effects of heavy metals
Provedor de dados: 27
Autores: Kime, D.E.; Ebrahimi, M.; Nysten, K.; Roelants, I.; Rurangwa, E.; Moore, H.D.M.; Ollevier, F.P.
Computer assisted sperm analysis (CASA) has been used to analyse the effects of cadmium and zinc on the motility of fish sperm treated either for 24h after partial dilution in an extender, or during the final dilution step on the microscope stage during video recording. The progressive motility of catfish sperm, which was not affected by storage for 24h, was decreased after exposure to 100 ppm cadmium or 2000 ppm zinc in extender for 24h. Only 1000 ppm cadmium or 2000 ppm zinc had any effect on motility when added to sperm at the final dilution stage. These results suggest that concentrations of cadmium which have been found to be present in fish gonads as a result of bioaccumulation from the water or diet may decrease the motility of sperm during...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2993

&lt;i&gt;Polkepsilonema mombasae&lt;/i&gt; gen. et sp. n. and &lt;i&gt;Pternepsilonema servaesae&lt;/i&gt; gen. et sp. n. (Nematoda, Epsilonematidae) from East African coasts
Provedor de dados: 27
Autores: Verschelde, D.; Vincx, M.
Two new genera and species from Kenyan tidal areas, &lt;i&gt;Polkepsilonema mombasae&lt;/i&gt; gen. et sp.n. and &lt;i&gt;Pternepsilonema servaesae&lt;/i&gt; gen. et sp.n., are described. Both are characterized by the presence of at least fourteen subcephalic setae and by thick thorns on the ventral body region of males. In the first genus, eight to ten subcephalic setae are situated at the posterior edge of the rostrum, and the ambulatory setae are straight. A key of the 13 genera of the Epsilonematidae is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epsilonematidae; Nematoda [Nematodes]; Polkepsilonema mombasae; Pternepsilonema servaesae.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2797

The infaunal macrobenthos under East African &lt;i&gt;Ceriops tagal&lt;/i&gt; mangroves impacted by epibenthos
Provedor de dados: 27
Autores: Schrijvers, J.; Camargo, M.G.; Pratiwi, R.; Vincx, M.
The interactions between macrobenthic in- and epifauna of a mid-intertidal &lt;i&gt;Ceriops tagal&lt;/i&gt; (Perr.) Rob. stand were studied in order to test the relative importance of epibenthic predation pressure on and resource competition with the macro-endobenthos. The study is the fourth in a series of papers based on exclusion experiments in two different parts of the mangrove system at Gazi Bay in southern Kenya. The permanent and visiting epibenthos were excluded using cages. Densities of the macrobenthic taxa Oligochaeta (families Tubificidae and Enchytraeidae), Amphipoda (genera &lt;i&gt;Grandidierella&lt;/i&gt; and &lt;i&gt;Ampelisca&lt;/i&gt;), Insecta larvae (family Dolichopodidae), Polychaeta (families Nereidae and Terebellidae),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ceriops tagal.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=316

Some observations on harpacticoid populations, in relationship to the competitive exclusion principle
Provedor de dados: 27
Autores: Hauspie, R.; Polk, P.
In the field ecology of populations, two concepts are largely distributed and generally accepted:- the competitive exclusion principle states that organisms occupying similar ecological niches, come into competition and consequently cannot coexist. - the more two organisms are close to each other in phylogeny, the more they will tend to occupy similar niches. The results obtained from the study of populations of harpacticoids colonizing artificial substrata are somehow an illustration of these principles. Indeed, these species which coexist belong most of the time to different genera or even to different families.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3501

A combined salinity/countercurrent stress test to evaluate stress sensitivity of juvenile European sea bass &lt;i&gt;Dicentrarchus labrax&lt;/i&gt; L.
Provedor de dados: 27
Autores: Coutteau, P.; Geurden, I.; Schwarz, L.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2538

A culture system for &lt;i&gt;Artemia, Daphnia&lt;/i&gt;, and other invertebrates, with continuous separation of the larvae
Provedor de dados: 27
Autores: Sorgeloos, P.; Persoone, G.
An easily constructed apparatus is described in which adult invertebrates can be reared with automatic feeding and with automatic and continuous separation of the offspring from the adults.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culture media; Larvae.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3471

Linking biodiversity above and below the marine sediment-water interface
Provedor de dados: 27
Autores: Snelgrove, P.V.R.; Austen, M.C.; Boucher, G.; Heip, C.H.R.; Hutchings, P.A.; King, G.M.; Koike, I.; Lambshead, P.J.D.; Smith, C.R.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6965

Voordrachten in verband met de zeevisserij gehouden door Ch. Gilis, technisch adjunct aan het Zeewetenschappelijk Instituut, aan de leerlingen van de visserijscholen in 1957
Provedor de dados: 27
Autores: Gilis, Ch.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Biology Education Fish stocks Fishing technology Landings Marine fisheries Otter trawlers Overfishing Values Clupea harengus ANE; Belgium.
Ano: 1957
URL: http://www.vliz.be/imisdocs/publications/236400.pdf

Het gehalte aan carbonaten in de sedimenten van het Schelde-estuarium, de Oosterschelde en het Veerse Meer
Provedor de dados: 27
Autores: Wartel, S.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266432.pdf

Nitrogen cycling and budget in Belgian coastal waters: North Sea areas with and without river inputs
Provedor de dados: 27
Autores: Mommaerts, J.-P.; Pichot, G.; Ozer, J.; Adam, Y.A.; Baeyens, W.F.J.
The coastal sea off Belgium has been extensively studied for a number of years on a multidisciplinary basis. Thus the stocks within the system's various compartments as well as the carbon or nitrogen fluxes between them resulting from biological activity at several trophic levels have been measured. Further, the tidal and residual circulations have been investigated and modeled in addition to the erosive properties of the flow. There are strong differences between the more coastal part of this area and the open sea. In particular, inputs from rivers and channels seem to exert an influence beyond what could normally be expected in coastal areas.Adequate modelling of the nitrogen cycle in such a diverse environment demanded a fine approach, including a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen cycle River inflow ANE; Belgium; Belgian Coast ANE; North Sea; Southern Bight.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3333

Evolutie in de tijd van de sedimenten in de Spuikom
Provedor de dados: 27
Autores: Gullentops, F.
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7675

Holocene evolution of relative sea level and local mean high water spring tides in Belgium: a first assessment
Provedor de dados: 27
Autores: Denys, L.; Baeteman, C.
Holocene age-depth data from the Belgian coastal plain, basal peat data particularly, are assessed in terms of local water and tide levels. Basal peat formation was generally induced by sea-level rise; effects of local seepage were limited and significant river-gradient effects were absent. No relation was found between the timing of basal peat inception and substrate permeability. In general, edaphic (moisture) conditions were unfavourable for organic accumulation prior to sea-level related rise of the groundwater table. Error envelopes for the minimum level of local mean high water spring tides and for upper and extreme lower relative mean sea-level limits during the last 9400 solar years (8400 yrs B.P.) are presented. These indicate that the rate of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Holocene; Marine geology; Peat; Sea level changes; Sedimentation.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2960

Mercury in the bivalve &lt;i&gt;Anadara (Senilia) senilis&lt;/i&gt; from Ghana and Nigeria
Provedor de dados: 27
Autores: Joiris, C.R.; Azokwu, M.I.; Otchere, F.A.; Ali, I.B.
Samples of the bivalve Anadara (Senilia) senilis collected from a closed lagoon (Sakumo) and two open lagoons in Ghana (Benya and Ningo; n=550), and the Bonny river estuary in Nigeria (n=620), were analyzed for their total and organic mercury content. Total mercury concentration showed significant spatial differences, with median values of 0.1 µg/g dry wt. in the closed lagoon, 0.2 in the estuary and 0.3 in the open lagoons. Concentration tended to be higher during the dry season in the lagoons, but lower in the estuary. The median relative organic concentration varied between 20 and 60% methyl Hg, depending on location and season. Age effects were detected in the lagoons, total Hg concentration decreasing with length.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6843

Zeewieren uit de streek van Ambleteuse
Provedor de dados: 27
Autores: Coppejans, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae; Seaweed.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7621

Analyse van het ecosysteem van de Noordzee: het kompartiment fytoplankton en de betrokken flux
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Polk, Ph.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6105

Preliminary study of &lt;i&gt;Eucheuma&lt;/i&gt; and &lt;i&gt;Gracilaria&lt;/i&gt; culture off Kenya
Provedor de dados: 27
Autores: Coppejans, E.
Large wild populations of Euchema are absent along the Kenyan Coast (except for the southernmost part, Shimoni, but even here not enough for harvesting). Some Gracilaria species have a large biomass and harvesting of the natural populations might be economically interesting (more detailed studies are necessary). outdoor mariculture in the open sea is in my opinion impossible off Kenya because of the lack of available space (unsuitable coast or other uses of the appropriate habitat). Before starting algal mariculture in outdoor ponds a thorough feasibility and cost/profitability study should be done.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mariculture Eucheuma Gracilaria ISW; Kenya.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3006

Bijdrage tot de kennis van de zwemvogels te Oostende en omgeving: 2. Eenden, zaagbekken, ganzen en zwanen in de omgeving van Oostende
Provedor de dados: 27
Autores: Corveleijn, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1970
URL: http://www.vliz.be/imisdocs/publications/277117.pdf

Algues marines nouvelles pour la Côte du Boulonnais (Pas-de-Calais, France): 3. Les micro-épiphytes (Chloro-, Phaeo-, Rhodophyceae) = Algues marines nouvelles pour la Côte du Boulonnais (Pas-de-Calais, France): 3. Les micro-épiphytes (Chloro-, Phaeo-, Rhodophyceae)
Provedor de dados: 27
Autores: Beeckman, T.; Coppejans, E.
The authors describe 16 seaweeds not previously collected from the French coasts of the Channel: the Chlorophyceae &lt;i&gt;Halochlorococcum marinum, Pringsheimiella scutata, Stromatella monostromatica, S. papillosa, Ulvella setchellii&lt;/i&gt;, the Phaeophyceae &lt;i&gt;Chilionema reptans, Myrionema corunnae&lt;/i&gt;, the Rhodophyceae &lt;i&gt;Acrochaetium nemalionis, Chromastrum secundatum f. virgulatum, Erythrocladia grisea, E. irregularis&lt;/i&gt; f. &lt;i&gt;irregularis&lt;/i&gt; and f. &lt;i&gt;subintegra, E. violacea, Erythrotrichia boryana, Fosliella faranosa, Pneophyllum rosanoffii&lt;/i&gt;. Ecological data are added to the morphological and anatomical descriptions.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae Coastal zone New records Rhodophyceae ANE; France; Nord; Boulogne-sur-Mer ANE; France; Nord; Pas-de-Calais.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3251

Design, operation, and potential of a culture system for the continuous production of &lt;i&gt;Artemia&lt;/i&gt; nauplii
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
A flow-through system is described for the controlled production of &lt;i&gt;Artemia&lt;/i&gt; nauplii. High densities of adult brine shrimp are induced to ovoviviparity through diet manipulation, optimal culture water exchange, and high constant oxygen levels. The nauplii produced are separated from the culture tank effluents in a special recuperation filter system. The culture water is recirculated over a rotating biodisc, a cross-flow sieve, and a plate separator.The potential of this nauplii production system for application in aquaculture hatcheries is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3174

Recente vorderingen in de mariene ecologie
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6959

Trace metals in the eastern part of the North Sea: 1: Analyses and short-term distributions
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Gillain, G.; Decadt, G.; Elskens, I.
Advanced analysis procedures for dissolved and particulate trace metals in sea water have been developed and tested in international intercalibration exercises. Since these tests gave evidence that reliable data could be produced with such methods, trace metal distributions in the coastal waters of the eastern North Sea were studied.The spatial distributions of most dissolved and particulate trace metals are, at least qualitatively, similar. Their concentrations decrease with distance from the coast and the mouth of the Scheldt estuary ( particulates much stronger than dissolved species). The salinity gradient is similar (but opposite) to the trace metals and turbidity gradients. The five trace metals studied can be subdivided into two groups on the basis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Analytical techniques Coastal zone Dissolved chemicals Quantitative distribution Salinity Suspended particulate matter Trace metals Turbidity ANE; North Sea.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3284

Phytoplankton nitrogen nutrition in the western Indian Ocean: Ecophysiological adaptations of neritic and oceanic assemblages to ammonium supply
Provedor de dados: 27
Autores: Mengesha, S.; Dehairs, F.A.; Elskens, M.; Goeyens, L.
The nitrogen nutrition of the phytoplankton community in the neritic and oceanic waters of the western Indian Ocean was investigated during the south-east monsoon (June-July) and intermonsoon periods (November-December). The region is very oligotrophic, characterized by very low nutrient concentrations (surface NO sub(3)&lt;0.5 µM), low phytoplankton biomass (PON similar to 0.85 µmoll super(- 1)) and predominance of regenerated production (maximum f -ratio &lt;0.47). Ammonium was the major nitrogen substrate during the two seasons, supplying 53-99% of the phytoplankton's nitrogen requirement. Nevertheless, both the uptake of nitrate and its relative contribution to total nitrogen removal (f -ratio) were significantly higher during the intermonsoon period...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1951

Systematic revision of the Chlamydinae (Pectinidae, Bivalvia, Mollusca) of the European Cretaceous part 2: &lt;i&gt;Lyropecten&lt;/i&gt;
Provedor de dados: 27
Autores: Dhondt, A.V.
This paper is the second of a series dealing with the systematic revision of the European Cretaceous &lt;i&gt;Chlamydinae&lt;/i&gt; (Pectinidae, Bivalvia, Mollusca). Ten species of the genus &lt;i&gt;Lyropecten&lt;/i&gt; Conrad, 1863 are descrbed: &lt;i&gt;L. (Aequipecten) arlesiensis&lt;/i&gt; (Woods, 1902), &lt;i&gt;L. (A.) campaniensis&lt;/i&gt; (d'Orbigny, 1847), &lt;i&gt;L. (A.) pulchellus&lt;/i&gt; (Nilsson, 1827), &lt;i&gt;L. (A.) acuteplicatus&lt;/i&gt; (Alth, 1850), &lt;i&gt;L. (A.) subinflexus&lt;/i&gt; nom.nov., &lt;i&gt;L. (A.) subaratus&lt;/i&gt; (Nilsson, 1827), &lt;i&gt;L. (A.) sarumensis&lt;/i&gt; (Woods, 1902) (&lt;i&gt;L. (A?) ternatus&lt;/i&gt; (Muenster in Goldfuss, 1838), &lt;i&gt;L. (A?) trigeminatus&lt;/i&gt; (Goldfuss, 1833),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cretaceous Bivalvia Europe; Europe.
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/303651.pdf

Dietary effects of DHA/EPA on culture performance and fatty acid composition of&lt;i&gt;Penaeus monodon&lt;/i&gt; postlarvae
Provedor de dados: 27
Autores: Kontara, E.K.M.; Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus monodon [giant tiger prawn].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2571

&lt;i&gt;Laophontopsis&lt;/i&gt; Sars and the taxonomic concept of the Normanellinae (Copepoda: Harpacticoida): a revision
Provedor de dados: 27
Autores: Huys, R.; Willems, K.
The taxonomic concept of the subfamily Normanellinae Lang (Harpacticoida, Laophontidae) is revised. As a result a new family Laophontopsidae is proposed to accommodate Laophontopsis Sars and two new genera Aculeopsis and Telodocus. It is concluded that the presumed boreo-mediterranean distribution pattern displayed by the type species L. lamellifera (Claus) is merely the result of erroneous identifications. The population of northwest Europe is assigned to a new species L. borealis and another new species L. monardi is proposed for Monard's (1928) material from Banyuls-sur-Mer. L. secundus Sewell is placed in the new genus Telodocus. Aculeopsis gen. nov. embraces only A. longisetosa spec. nov. and constitutes the most primitive genus of the family. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Copepoda [copepods] Harpacticoida Laophontopsis Sars; 1908 Normanellinae.
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/266820.pdf

Determination of methylmercury in biological samples by semiautomated headspace analysis
Provedor de dados: 27
Autores: Decadt, G.; Baeyens, W.F.J.; Bradley, D.; Goeyens, L.
Gas-liquid distribution coefficients of methylmercury halides dissolved in water or benzene have been assessed by using a headspace injection system coupled to a gas chromatograph-microwave-induced plasma system. Vapor concentrations decreased in the following order: CH&lt;sub&gt;3&lt;/sub&gt;HgI &gt; CH&lt;sub&gt;3&lt;/sub&gt;HgBr &gt; CH&lt;sub&gt;3&lt;/sub&gt;HgCl. To transform all methylmercury iodide, iodoacetic acid (IAc) is used as the liberating agent. Methylmercury iodide degradation is prevented by the addition of sodium thiosulfate (0.05 M). The results obtained with internal standard addition are not influenced by other volatile compounds including other mercury compounds. The method has been applied to a series of biological samples. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Analytical techniques; Chemical analysis; Mercury compounds.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3198

Marine algae of Papua New Guinea (Madang prov.): 1. Caulerpaceae (Chlorophyta-Caulerpales)
Provedor de dados: 27
Autores: Coppejans, E.; Meinesz, A.
In view of preparing a Flora of the Seaweeds of N. Papua New Guinea, material was collected by scuba-diving along the coast of Madang Province in June-August 1980 and July-August 1986. The Caulerpales are the first group to be studied. Thirteen taxa belonging to the genus &lt;i&gt;Caulerpa&lt;/i&gt; are described and illustrated; ecological and biogeographical data are added. The list includes &lt;i&gt;C. brachypus, C. elongata, C. filicoides&lt;/i&gt; var. &lt;i&gt;andamanensis, C. lentillifera&lt;/i&gt; var. &lt;i&gt;kilneri, C. manorensis, C. microphysa, C. opposita&lt;/i&gt; sp.nov., &lt;i&gt;C. racemosa&lt;/i&gt; var. &lt;i&gt;clavifera, C. racemosa&lt;/i&gt; var. &lt;i&gt;peltata, C. serrulata&lt;/i&gt; var. &lt;i&gt;serrulata, C. serrulata&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae ISEW; Papua New Guinea; Madang.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3239

P.J. Van Beneden: la vie et l'œuvre d'un zoologiste
Provedor de dados: 27
Autores: Kemna, Ad.
Tipo: Info:eu-repo/semantics/book
Ano: 1897
URL: http://www.vliz.be/imisdocs/publications/319902.pdf

&lt;i&gt;Syrticola flandricus&lt;/i&gt; n.g., n.sp., a harpacticoid copepod from the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Willems, K.A.; Claeys, D.
During a comprehensive study of the macro- and meiobenthos of the Kwintebank, a sandbank in the Southern Bight of the North Sea, eleven female specimens of a cylindropsyllid, belonging to a new genus, were collected from one of the stations sampled. The station's coordinates are 51°18'00''N 2°40'10''E. The sediment at this stations is a pure, very well sorted, coarse sand (median grain size: 517 µm; sorting: 0.24; mud&lt;63µm: 0%) with a harpacticoid community similar to the &lt;i&gt;Leptastacus laticaudatus-Paramesochra helgolandica&lt;/i&gt;- community from the "Open Sea" Zone described by Govaere et al. (1980). All specimens have been deposited at the "Koninklijk Belgisch Instituut voor Natuurwetenschappen", Vautierstraat 31, B-1040 Brussels, under no....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera New species Copepoda [copepods] Syrticola flandricus Willems &amp; Claeys; 1982 ANE; North Sea; Southern Bight.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3423

Substitute diets for live algae in the intensive rearing of bivalve mollusks: a state of the art report
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
Hatchery rearing of bivalve mollusks depends on the production of live micro-algae, which is costly and often unpredictable, and the development of a cost-effective artificial diet would greatly reduce the operating costs and improve the efficiency of bivalve seed production. This paper reviews the literature on the use of various alternatives to on-site algal production, plus the results obtained by the authors using manipulated yeasts as algal substitutes in feeding trials with juveniles of various commercially important bivalve species, and compares this information with experience "from the field" obtained through an international survey of operators of 50 commercial and research hatcheries. Despite the extensive research efforts, it appears that...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2674

The use of manipulated baker's yeast as an algal substitute for the laboratory culture of &lt;i&gt;Anostraca&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Brendonck, L.; Lavens, P.; Sorgeloos, P.
The production of unicellular algae is laborious and is a major constraint for the culturing of aquatic filter-feeders. Because of their small particle size and their high protein content yeasts are considered as a promising substitute for micro-algae. Furthermore, recent work has shown that baker's yeast can be converted into a digestible diet for &lt;i&gt;Artemia&lt;/i&gt; by chemical treatment. The present study documents the use at laboratory scale of this manipulated yeast as an algal substitute for the culture of two anostracan species.The experiments were conducted with the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt; and the fairy shrimp &lt;i&gt;Streptocephalus proboscideus&lt;/i&gt;. A similar experimental set-up was used for both species....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anostraca.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2720

First record of a Psolidae (Holothuroidea, Echinodermata) in the Mediterranean Sea (Sicilian Channel)
Provedor de dados: 27
Autores: Massin, C.
&lt;i&gt;Psolidium complanatum&lt;/i&gt; is mentioned for the first time from the Mediterranean Sea. It is also the first record of a Psolidae in this sea.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution records New records Echinodermata [Echinoderms] Holothuroidea [Sea cucumbers] Psolidae Psolidium complanatum MED; Sicilian Channel.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303558.pdf

Postembryonic development of &lt;i&gt;Tisbe gracilis&lt;/i&gt; (T. Scott) (Copepoda, Harpacticoida)
Provedor de dados: 27
Autores: Dahms, H.-U.; Bergmans, M.
All six naupliar and five copepodite stages of &lt;i&gt;Tisbe gracilis&lt;/i&gt; (T. Scott, 1985) are described. A key for the identification of the nauplius stages is given. The oral appendages of all copepodite stages are described. Sexual dimorphism is visible from the copepodite IV stage on.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tisbe gracilis (T. Scott; 1895).
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2988

Tricominae (Nematoda - Desmoscolecida) from the northern part of Moçambique Channel, with five new species and one new genus
Provedor de dados: 27
Autores: Decraemer, W.
Five new species of Tricominae (Desmoscolecida) from the N.E. of the Moçambique Channel are described: &lt;i&gt;Antarcticonema inaequalis&lt;/i&gt;, &lt;i&gt;Tricoma curvespiculata&lt;/i&gt;, &lt;i&gt;T. bullapophysa&lt;/i&gt;, &lt;i&gt;T. gloriosa&lt;/i&gt; and &lt;i&gt;Desmotricoma spinicauda&lt;/i&gt;. &lt;i&gt;Desmotricoma&lt;/i&gt; gen.n. is mainly characterized by the ornamentation of the body-cuticle i.e. provided with prominent protruding concretion masses around long spines and dispersed over the whole body in a more or less regular way.
Tipo: Info:eu-repo/semantics/article
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/303565.pdf

Calculation of the intrinsic rate of natural increase, r&lt;sub&gt;m&lt;/sub&gt;, with &lt;i&gt;Rhabditis marina&lt;/i&gt; Bastian 1865 (Nematoda)
Provedor de dados: 27
Autores: Vranken, G.; Heip, C.H.R.
The life-cycle of &lt;i&gt;Rhabditis marina&lt;/i&gt; Bastian 1865 was studied at 25°C and 20 promille salinity. The following demographic parameters were computed from life-table data: the intrinsic rate of natural increase (r&lt;sub&gt;m&lt;/sub&gt;) = 0.914 day; net reproductivity (R&lt;sub&gt;0&lt;/sub&gt;) = 400; minimum generation time (T&lt;sub&gt;min&lt;/sub&gt;) = 4.5 days; cohort generation time (T&lt;sub&gt;c&lt;/sub&gt;) = 7.2 days; mean generation time (T) = 6.6 days; and the age of an adult female when a median egg is deposited (T) = 6.1 days. Several approximate equations used to estimate r&lt;sub&gt;m&lt;/sub&gt; were compared with these life-table calculations. Some give erroneous estimations and should be used with extreme caution. For...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Population characteristics; Nematoda [Nematodes]; Rhabditis marina.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3260

A genetic comparison of Atlantic and Mediterranean populations of a saltmarsh beetle
Provedor de dados: 27
Autores: Desender, K.; Serrano, J.
Enzyme and dispersal polymorphism in the saltmarsh carabid beetle &lt;i&gt;Pogonus chalceus&lt;/i&gt; Marsham were compared between 30 Atlantic and nine Mediterranean European populations. Allozyme results showed that Mediterranean beetles (France, Spain) are genetically distinct from Atlantic populations. All Mediterranean beetles screened showed complete fixation at one locus (IDH1), which in Atlantic populations nearly always varied, whereas some unique Mediterranean alleles were observed for another locus (MPI). Genetic differentiation (allozymes) between Mediterranean populations, although highly significant, appeared to be much lower (F&lt;sub&gt;st&lt;/sub&gt; = 0.098) than between Atlantic populations (F&lt;sub&gt;st&lt;/sub&gt; = 0.178). Beetles...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/238638.pdf

The oceanographic &lt;i&gt;Snellius-II&lt;/i&gt; expedition botanical results: list of stations and collected plants
Provedor de dados: 27
Autores: Coppejans, E.; Prud'homme van Reine, W.F.
The Snellius-II oceanographic expedition took place between July 1984 and July 1985 in the E area of the Indonesian archipelago; 450 researchers took part (200 Indonesians, 248 Dutch and 2 Belgians). Collection of benthic macroalgae and higher plants were mainly carried out on the reef flats, their rock pools and slopes, lagoons, sea-grass meadows and mangals. A total of 1500 herbarium numbers has been collected. They contain at least 300 different species of macroalgae, at least identified to genus. Up to now, the Dasycladales and Bryopsidales have been studied in detail and dealt with in various publications; a publication on Gelidiales is in press. The present study gives a list of 73 collection stations and lists more than 300 taxa, including some new...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2807

An oral challenge for turbot larvae with &lt;i&gt;Vibrio anguillarum&lt;/i&gt;
Provedor de dados: 27
Autores: Chair, M.; Dehasque, M.; Van Poucke, S.; Nelis, H.; Sorgeloos, P.; De Leenheer, A.P.
There is a need for a standard in vitro procedure to infect larval fish with bacteria. Such a procedure could be used as a tool to evaluate fish quality, verify fish sensitivity to a certain bacterial strain or evaluate the pathogenicity of a bacterium towards a given fish species. The availability of a challenge test is a prerequisite in studies dealing with the effect of different medicinal treatments on diseased fish. An oral challenge test would offer the possibility to investigate the routes of infection via the digestive tract, i.e. after feeding contaminated feeds. The present study aims to verify this hypothesis and proposes a standard challenge procedure for turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) larvae with a pathogenic &lt;i&gt;Vibrio...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial diseases; Digestive system; Disease control; Fish culture; Fish diseases; Fish larvae; Marine fish; Pathogenic bacteria; Vibrio anguillarum.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2552

Three new species of Dendrochirotida (Holothuroidea, Echinodermata) from the Weddell Sea (Antarctica)
Provedor de dados: 27
Autores: Massin, C.
Three new species of dendrochirote holothurians are described: &lt;i&gt;Echinopsolus parvipes, Cucumaria acuta,&lt;/i&gt; and &lt;i&gt;Trachythyone maxima&lt;/i&gt;. The specimens were collected between 400 and 800m in the south-eastern Weddell Sea, Antarctica.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/303532.pdf

Community structure and processes in the deep-sea benthos
Provedor de dados: 27
Autores: Vincx, M.; Vanreusel, A.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/273124.pdf

Heated and unheated outdoor cultures of marine algae with animal manure
Provedor de dados: 27
Autores: De Pauw, N.; Verlet, H.; De Leenheer, L. Jr.
The feasibility was tested of maintaining long-term semi-continuous or continuous cultures of marine planktonic algae such as &lt;i&gt;Chlorella saccharophila&lt;/i&gt; (Krüger) Migula and also algae developing naturally in enriched seawater and which could be suited as food organisms. Diluted aerated swine manure was used as the sole nutrient source for the algae. About 5 liter aerated swine manure per square meter per day x dilution rate per day seemed to satisfy the need of the culture. In view of a possible utilization of thermal effluents, a comparison was made between algal growth in heated and unheated cultures. The experiments were carried out in 250 liter tanks outdoor, equipped with airlift pump. Almost independent of temperature, the algal dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae culture.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3657

Etudes hydrobiologiques sur les eaux saumâtres de Belgique: X. Espèces de protises rares ou nouvelles pour la côte belge
Provedor de dados: 27
Autores: Van Meel, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende; Sluice Dock.
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/238575.pdf

Uitwisseling van nutrienten op het grensvlak sediment-waterkolom in de Spuikom te Oostende, 2
Provedor de dados: 27
Autores: Thielemans, L.; Heip, C.H.R.; Van Gansbeke, D.; Braeckman, A.; De Keere, M.; Verdonckt, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/228849.pdf

New aspects of the use of inert diets for high density culturing of brine shrimp
Provedor de dados: 27
Autores: Dobbeleir, J.; Adam, N.; Bossuyt, E.; Bruggeman, E.; Sorgeloos, P.
Brine shrimp being non-selective filter-feeders, cheap agricultural waste products should be evaluated as potential food sources for their controlled mass culturing. Preliminary results of screening tests performed with wheat bran, soybean meal , rice bran and whey powder in culturing systems of various size are reported. Wheat bran appears to be unsuitable as monodiet for brine shrimp. The other products tested support good growth although specific precautions have to be taken with some foods to avoid problems of water quality during culturing. Processing techniques for the manual or mechanical preparation of inert feeds for &lt;i&gt;Artemia&lt;/i&gt; are indicated. The possibility of influencing the fatty acid pattern of cultured brine shrimp by varying...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brine shrimp culture; Diets.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3659

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichthyan fishes. Part A: Selachii. 1: Order: Hexanchiformes - Family: Hexanchidae. Commissural teeth
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
The commissural teeth of the Hexanchidae are for the first time described and illustrated. The morphology allows a direct generic assignment.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Taxonomy; Teeth; Chondrichthyes; Hexanchidae [Cow sharks].
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/294440.pdf

Clay fabric as an indicator of cyclic changes in an estuarine palaeo-environment: Lower Pleistocene, northern Campine Area, Belgium
Provedor de dados: 27
Autores: Wartel, S.; Sethi, P.S.; Bogemans, F.
SEM photographs of the Turnhout Member (Lower Pleistocene), reveal a vertical cyclicity of 2 main clay-fabric types: (a) face-to-face domains and (b) edge-to-face domains, each of them indicating the existence of respectively dispersed particles deposited in a salt-water environment, the transition being marked by intermediate clay-fabric types. It is suggested that the sequence corresponds to fluctuations in the position of the fluvial-marine equilibrium, related to important changes in river runoff of tidal amplitude. These observations indicate the utility of applying clay-fabric analyses to achieve a higher resolution in palaeo-environmental interpretations.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/3153.pdf

The differentiation of blood proteins during ontogeny in &lt;i&gt;Sepia officinalis&lt;/i&gt; L.
Provedor de dados: 27
Autores: Decleir, W.; Lemaire, J.; Richard, A.
1. Blood from embryos, young animals and adult &lt;i&gt;Sepia officinalis&lt;/i&gt; L. has been analysed by an ultramicroelectrophoretic technique.2. During the differentiation of a very small embryo into a 2-month-old animal, we have found eleven different protein fractions. 3. All these proteins have been identified as hemocyanin by histochemical tests. 4. The possible origin of the embryonic, young and adult hemocyanins is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood types Ontogeny Proteins Sepia officinalis Linnaeus; 1758 [Common cuttlefish] ANE; France; Nord; Wimereux.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3432

Chitons de Simonstown et de l'Océan antarctique
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitonidae.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289073.pdf

Op weg naar duurzame ontwikkeling: Federaal rapport inzake duurzame ontwikkeling
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/332175.pdf

Toxicological investigations on four sperm whales stranded on the Belgian coast: inorganic contaminants
Provedor de dados: 27
Autores: Bouquegneau, J.-M.; Debacker, V.; Gobert, S.; Nellissen, J.P.
Nine heavy metals have been analysed in the liver, muscle and kidneys of sperm whales that stranded on the Belgian coast, November 18, 1994. The concentrations of most of the studied inorganic contaminants -except mercury and cadmium- were very low. The mercury content of the tissues was high, but in the range of those found in sperm whales previously described in the literature, as shown by Joiris et al. (this volume), and most of the mercury was found under an inorganic form. We found a close correlation between the mercury and selenium contents of the livers, which strongly suggests that the pollutant was detoxified under the tiemannite form, and therefore was not potentially toxic for the animals. On the contrary, cadmium was found in high...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cadmium Detoxification Heavy metals Selenium Stranding Toxicology ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/250900.pdf

Salt, &lt;i&gt;Artemia&lt;/i&gt; and shrimp: integrated production in the People's Republic of China: the Tang Gu saltworks
Provedor de dados: 27
Autores: Tackaert, W.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2904

Selection of bacteria enhancing the growth rate of axenically hatched rotifers (&lt;i&gt;Brachionus plicatilis&lt;/i&gt;)
Provedor de dados: 27
Autores: Rombaut, G.; Dhert, P.; Vandenberghe, J.; Verschuere, L.; Sorgeloos, P.; Verstraete, W.
The effect of bacterial strains on the growth rate of rotifers, Brachionus plicatilis, was determined under monoxenic conditions. The first objective was to obtain sterile rotifer cultures starting from rotifer resting eggs using merthiolate or glutaraldehyde as disinfectant. Sterile rotifer cultures were obtained, without affecting the hatching ability of the resting eggs, when 0.05 µl/l glutaraldehyde was used. This disinfection procedure was used to examine the effect of 20 bacterial strains, isolated from well-performing live-feed production systems, on the population growth rate of rotifers cultured under monoxenic conditions. Five out of the 20 bacterial strains tested were able to improve significantly the asexual reproduction of rotifers. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Aquaculture techniques; Bacterial diseases; Disease transmission; Disinfection; Hatching; Zooplankton; Zooplankton culture; Brachionus plicatilis; Rotifera.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4030

Primary production and nutrient fluxes in the Gulf of Biscay
Provedor de dados: 27
Autores: Elskens, M.; Chou, L.; Dauby, P.; Frankignoulle, M.; Goeyens, L.; Loijens, M.; Wollast, R.
Since the role of continental shelves and coastal areas in the global biochemical carbon are nowadays a leading concern in oceanographic research programmes, this study aims to define the specific effect of nutrients on the onset and development of the phytoplankton bloom at the ocean margins. Comparison experiments of the carbon, nitrogen and phosphorus assimilation rates were carried out from 1989 to 1991 in the English Channel and the Gulf of Biscay. New production were obtained from the traditional approach using &lt;i&gt;f&lt;/i&gt;-ratio values, i.e. the ratios of directly measured nitrate to carbon uptakes and/or the ratios of nitrate to nitrate plus ammonium uptakes. Values of &lt;i&gt;f&lt;/i&gt; agree well on the shelf, slope and deep basin...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2690

The calculation of eliminated biomass
Provedor de dados: 27
Autores: Heip, C.
The number of individuals which is eliminated from a population whose numbers change exponentially at a rate of r per unit of time and whose mortality is d per unit of time can be calculated from N&lt;sub&gt;e&lt;/sub&gt; = (dN&lt;sub&gt;o&lt;/sub&gt;/r) ( e&lt;sup&gt;rt&lt;/sup&gt; - 1). This formula permits the use of the concept of eliminated biomass in the calculation of production of populations without restriction to their way of reproduction. The formula was applied to calculate production of adults in the harpacticoid copepod &lt;i&gt;Tachidius discipes&lt;/i&gt; Giesbrecht, 1882, where it was shown that the production/biomass ratio P/B = 15.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3550

Research on the development of a short term standard toxicity test with &lt;i&gt;Artemia&lt;/i&gt; nauplii
Provedor de dados: 27
Autores: Vanhaecke, P.; Persoone, G.; Claus, C.; Sorgeloos, P.
Standardization of toxicity tests on aquatic organisms to detect the impact of chemicals on freshwater or marine ecosystems is an urgent necessity. From the variety of methods, criteria, and test species proposed, simple standardized tests for algae, crustaceans, and fish are now close to being adopted at the international level for the freshwater environment. Despite the same urgency, very little has been achieved for the marine environment. &lt;i&gt;Artemia&lt;/i&gt; is an extremely suitable test-species since, contrary to all other organisms, it does not require continuous maintenance of stock cultures. Unfortunately none of the &lt;i&gt;Artemia&lt;/i&gt; toxicity tests that have been worked out so far can be adopted as such as a representative standard...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nauplii; Toxicity tests; Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3698

Three new &lt;i&gt;Duplominona&lt;/i&gt; species (Turbellaria, Monocelididae, Minoninae) from the Mediterranean
Provedor de dados: 27
Autores: Martens, P.M.
During several intensive collecting campaigns in 1982, 1983 and 1984 at the "Station de Recherches Sous-Marines et Océanographiques" (STARESO) at Calvi (Corsica) about 200 species of marine micro-Turbellaria have been observed. Most of the collecting sites are infralittoral, down to 40 m depth and more, the majority of them with sandy bottoms and some with algae. In general species diversity was high but population densities were low, only a few individuals of each species having been found.In the present paper, three new species of the genus &lt;i&gt;Duplominona&lt;/i&gt; (Monocelididae, Minoninae) from infralittoral habitats are described: &lt;i&gt;D. paucispina&lt;/i&gt; sp. n., &lt;i&gt;D. corsicana&lt;/i&gt; sp. n. and &lt;i&gt;D....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Duplominona MED; France; Corsica.
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/286525.pdf

Contribution à l'étude biologique et chimique du port d'Ostende
Provedor de dados: 27
Autores: Podamo, J.
The harbour of Ostend has been surveyed on the 6th of August 1970 at low water and high water. Samples have been taken at various depths for chemical analysis, bacteriological, phytoplankton and zooplankton investigations. All the results demonstrate an obvious water stratification and a heavy pollution by sewage outfalls and inland water incomes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemistry Ecology Harbours Phytoplankton Pollution Stratification Zooplankton ANE; Belgium; Oostende Harbour.
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/327681.pdf

Developments in sea floor research
Provedor de dados: 27
Autores: De Moor, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2835

The hyperbenthic Amphipoda and Isopoda of the Voordelta and the Westerschelde estuary
Provedor de dados: 27
Autores: Cattrijsse, A.; Mees, J.; Hamerlynck, O.
Data are reported on the amphipods and isopods taken in a sledge-type hyperbenthos sampler in the subtidal of the Voordelta, a shallow coastal area in the Westerschelde, the last estuary of the delta area (SW Netherlands). More than 300 samples were collected between 1988 and 1991. Two salt marches in the brackish part of the estuary were sampled monthly with a flume net in 1990 and 1991.A total of 46 amphipod species (42 gammarideans, 3 caprellids and 1 hyperiid), 19 of which are new for the area were recorded. The dominant amphipod species in the Voordelta and the marine part of the Westerschelde estuary are &lt;i&gt;Atylus swammerdami&lt;/i&gt; and &lt;i&gt;Gammarus crinicornis&lt;/i&gt;. Estimated densities of both species are high comparison to these...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/316190.pdf

Live-food mediated drug delivery as a tool for disease treatment in larviculture: the enrichment of therapeutics in rotifers and &lt;i&gt;Artemia&lt;/i&gt; nauplii
Provedor de dados: 27
Autores: Verpraet, R.; Chair, M.; Léger, P.; Nelis, H.; Sorgeloos, P.; De Leenheer, A.P.
The live food enrichment technique using emulsions for nutritional deficiencies in rotifers and &lt;i&gt;Artemia&lt;/i&gt; was further investigated as a tool for transferring therapeutics through the food chain. &lt;i&gt;Artemia&lt;/i&gt; nauplii and the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; were enriched with a self-emulsifying concentrate in which the therapeutic mixture trimetoprim: sulfamethoxazole was incorporated. An analytical method and protocol for the quantification of trimethoprim and sulfamethoxazole in a heterogeneous biological matrix, such as &lt;i&gt;Artemia&lt;/i&gt; , was developed using High Performance Liquid Chromatography. When applying a 24h enrichment period, the accumulation of both drugs in &lt;i&gt;Artemia&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture systems; Disease control; Drugs; Food chains; Therapy; Artemia.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2894

Het Schelde-estuarium: ecologische kwaliteitsdoelstellingen
Provedor de dados: 27
Autores: de Deckere, E.M.G.T.; Ysebaert, T.J.; Meire, P.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280720.pdf

Nitrous oxide in the Schelde estuary: production by nitrification and emission to the atmosphere
Provedor de dados: 27
Autores: de Wilde, H.P.J.; de Bie, M.J.M.
Concentrations of nitrous oxide (N&lt;sub&gt;2&lt;/sub&gt;O), oxygen, nitrate, and ammonium, as well as nitrification activity were determined along the salinity gradient of the Schelde Estuary, Northwest Europe, in October 1993, March 1994, and July 1996, The entire estuary was always supersaturated with N&lt;sub&gt;2&lt;/sub&gt;O. Concentrations ranged from 338 nmol dm&lt;sup&gt;-3&lt;/sup&gt; (31 times supersaturated) in the O&lt;sub&gt;2&lt;/sub&gt;-poor upper estuary, down to about 10 nmol dm&lt;sup&gt;-3&lt;/sup&gt; (slight supersaturation) at the mouth of the estuary. Nearly all N&lt;sub&gt;2&lt;/sub&gt;O was lost to the atmosphere within the estuary rather than being transported to the open sea. The mean annual emission from the Schelde estuary to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Denitrification Estuaries Nitrification Nitrous oxide Rates Rates Rates Trace gases ANE; Belgium ANE; Germany; Elbe Estuary.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1854

Philosophy and methodology of the new geological map of the Tertiary formations, Northwest Flanders, Belgium
Provedor de dados: 27
Autores: Jacobs, P.; De Ceukelaire, M.; Sevens, E.; Verschuren, J.
The most recent detailed geological map of Belgium (scale 1:40000) dates from the turning of the century. The Belgian Geological Survey and the Directorate of Natural Resources and Energy of the Flemish Ministry of Economic Affairs commissioned a new geological map scale (1:50000) to the Geological Institutes of the Universities of Gent and Leuven, to be drawn on basis of the archives of the Geological Survey, completed with data provided by licenciate and Ph.D. theses, publications, internal reports,… As it was the commissioners' aim the new geological map to have a greater applicability and to be highly user friendly, the option was taken to adopt lithostratigraphical units as the basal mapping units, enabling secondary economical and planning survey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geological surveys Methodology Tertiary ANE; Belgium; Flemish Banks Belgium; Flanders.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2605

General nature of the coastline
Provedor de dados: 27
Autores: De Moor, G.; Blomme, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Belgium; Het Zwin natuurreservaat.
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/239496.pdf

A box-model of metal flows through the Scheldt estuary (1981-1983 and 1992-1995)
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Monteny, F.; Van Ryssen, R.; Leermakers, M.
The behaviour of Cu, Zn, Cd, and Pb in the Scheldt estuary was investigated in the periods 1981 to 1993 and 1995. The Hg behaviour was studied between 1992 and 1994. A box model was used to establish the relationship between the trace metal inputs and the fate of these pollutants in the Scheldt estuary. Annual budgets were calculated for particulate and dissolved trace metals. For Hg, seasonal budgets of the various species (inorganic Hg, methylmercury, Hg°) could also be calculated. These budgets allow an evaluation of the consistency of each individual flux or process, such as the inputs of the various metals into the North Sea, the sedimentation flux of particulate metals in the area of high turbidity, the evasional fluxes and the formation rates of...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7059

The composition of the fish and crustacean community of the Zeeschelde estuary (Belgium)
Provedor de dados: 27
Autores: Maes, J.; Taillieu, A.; Van Damme, P.A.; Ollevier, F.P.
Fykes were used to monitor the fish and crustacean fauna of the mudflats of the Zeeschelde between April 1995 and December 1996. Overall 38 species were recorded; the number of species was greater in the brackish water part than in the fresh water part probably due to reduced oxygen concentrations in the upper reaches of the river. In terms of wet weight, just 6 species accounted for more than 96% of the total annual catch. These species are shore crab, eel, flounder, common shrimp, sole and bass. Clear seasonal patterns in the community structure were not identified. It is argued that the selectivity of the fishing gear is mainly responsible for the dominance of a few species and the lack of a temporal structure.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1409

International study on &lt;i&gt;Artemia&lt;/i&gt;: 58. Morphologic differentiation and reproductive isolation of &lt;i&gt;Artemia&lt;/i&gt; populations from South America
Provedor de dados: 27
Autores: Gajardo, G.; Colihueque, N.; Parraguez, M.; Sorgeloos, P.
Six &lt;i&gt;Artemia&lt;/i&gt; populations from coastal and inland sites in Chile, ranging from 20 to 50 degrees latitude south, were compared morphologically. The study included reference samples of &lt;i&gt;A. franciscana&lt;/i&gt; (San Fransisco Bay, California-USA) and &lt;i&gt;A. persimilis&lt;/i&gt; (Buenos Aires, Argentina). These species are likely to be found in Chile. Samples from Peru (Piura) and Brazil (Macau, Rio Grande do Norte) are two known examples of deliberate introduction of &lt;i&gt;A. franciscana&lt;/i&gt;. The hypothesis of &lt;i&gt;A. franciscana&lt;/i&gt; being the dominant species in South America was tested by multivariate morphological analyses based on ten body measurements. In addition, laboratory cross-fertility tests were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=302

Turbellaria from Somalia: 4. The genus &lt;i&gt;Pseudomonocelis&lt;/i&gt; Meixner, 1943
Provedor de dados: 27
Autores: Schockaert, E.R.; Martens, P.M.
The genus &lt;i&gt;Pseudomonocelis&lt;/i&gt; is treated in a monographic way, with the provisory re-introduction of &lt;i&gt;P. agilis&lt;/i&gt; . A comprehensive description of all representatives of the genus is given, including two new species from the neighbourhood of Mogadiscio, Somalia, &lt;i&gt;P. pardii&lt;/i&gt; and &lt;i&gt;P. cavernicola&lt;/i&gt; . Both species have a muscular vagina and a large bursa lying behind the female duct. &lt;i&gt;P. pardii&lt;/i&gt; is further characterised by the fact that the vagina ends in a muscular canal which opens anteriorly into the bursa and posteriorly receives the oviducts where the common female duct begins. It also has an extremely muscular penial organ. The most striking feature of &lt;i&gt;P....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Animal reproductive organs Hermaphroditism Phylogenetics Pseudomonocelis ISW; Somali Dem. Rep.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3202

Contributions à l'étude des bactéries marines du littoral belge: II. Comparaison de plusieurs méthodes pour détacher et obtenir en suspension les bactéries contaminant des surfaces
Provedor de dados: 27
Autores: Persoone, G.
Comparison of different methods to remove and to suspend bacteria which contaminate surfaces.The waterpressure and suction-rinsing method gave most satisfactory results as to the percentage of removed organisms and the number of them that we could bring into culture on agar-media.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria ANE; Belgium; Belgian Coast.
Ano: 1965
URL: http://www.vliz.be/imisdocs/publications/282301.pdf

Gypsum and other calcium-rich aerosol particles above the North Sea
Provedor de dados: 27
Autores: Hoornaert, S.; Van Malderen, H.; Van Grieken, R.
Ca-containing particles, especially CaSO&lt;sub&gt;4&lt;/sub&gt; particles, have been encountered in several atmospheric aerosol studies. An overview is given of the different sources of airborne Ca-containing particles. The North Sea atmosphere is studied to identify the different Ca-containing particle types and to find the correlation between their occurrence and the source regions of the corresponding air masses. About 50,000 individual aerosol samples were collected above the Southern Bight of the North Sea for several wind directions and analyzed for their composition using electron probe X-ray microanalysis. Nonhierarchical cluster analysis is performed on the data to reveal the differentparticle types, their relative abundances and their sources....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols; Calcium.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2974

Electron microscopic observations on the demanian system of female &lt;i&gt;Metoncholaimus denticaudatus&lt;/i&gt; Schuurmans Stekhoven and Adam, 1931 (Nematoda)
Provedor de dados: 27
Autores: Calcoen, J.; De Kegel, D.
Electron microscopic observations on the demanian system of female &lt;i&gt;Metoncholaimus denticaudatus&lt;/i&gt; Schuurmans Stekhoven and Adam, 1931 from the Sluice Dock of Ostend lead to following conclusions: 1) there is no ductus uterinus; 2) the system is not a seminal receptacle; 3) it should be interpreted as an elaborate cascade system of glands, the secretion of which serves some important purpose related to reproduction.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electron microscopy Metoncholaimus denticaudatus ANE; Belgium; Oostende; Sluice Dock.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3612

Nematodes from the Indian Ocean: description of six new species of the genus &lt;i&gt;Molgolaimus&lt;/i&gt; Ditlevsen, 1921 (Nematoda: Desmodoridae)
Provedor de dados: 27
Autores: Muthumbi, A.; Vincx, M.
Six new species of the genus &lt;i&gt;Molgolaimus&lt;/i&gt; Ditlevsen, 1921 are described from the Indian Ocean. &lt;i&gt;Molgolaimus abyssorum&lt;/i&gt; n. sp. is characterised by a small body (L = 287-370 µm), amphids close to the anterior end (2-3 µm behind the anterior end), short (2 x abd) curved spicules and absense of pre-cloacal supplements.&lt;i&gt;Molgolaimus tyroi&lt;/i&gt; n. sp. is characterised by a small body size (L = 225-290 µm), amphids close the anterior end (2 µm behind anterior), long thin spicules curved twice and one or two pre-cloacal supplements. &lt;i&gt;Molgolaimus gazii&lt;/i&gt; n. sp. is characterised by narrow anterior end with the head region slightly offset, wide amphids (70% cbd) located at 2.6-3.0 x hd behind the anterior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Taxonomy Molgolaimus abyssorum Molgolaimus gazii Molgolaimus kiwayui Molgolaimus sabakii Molgolaimus tanai Molgolaimus tyroi Nematoda [Nematodes] ISW; Kenya; Gazi Bay ISW; Kenya; Tana Delta.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/243961.pdf

Overzicht van de uitgeteste methoden en experimenten uitgevoerd in het kader van het FKFO-programma gedurende 1973: 1. Kwantitatieve bepaling van aerobe en anaerobe kolonievormers op verschillende diepten in de sliblaag ; 2. Pogingen tot soortbepaling
Provedor de dados: 27
Autores: Ronsse, F.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7996

De grondels (Pisces, Gobiidae) van de Belgische kustwateren en de aangrenzende estuaria
Provedor de dados: 27
Autores: Hamerlynck, O.; Janssen, C.R.
The authors provide a new and simple identification key for the different Gobiidae species in Belgian coastal waters.The key avoids to use the pigmentation pattern, because sexual dimorphism, individual and seasonal variations make this parameter useless for the non-scientist. The general life history of the Gobiidae is described, and each species is shortly treated separately.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater fish Check lists Distribution Identification keys Life history Aphia minuta (Risso; 1810) [Transparent goby] Gobiidae [Gobies] Gobius niger Linnaeus; 1758 [Black goby] Pomatoschistus lozanoi [Lozano's goby] Pomatoschistus microps (Kröyer; 1838) [Common goby] Pomatoschistus minutus (Pallas; 1770) [Sand goby] Pomatoschistus pictus (Malm; 1865) [Painted goby] ANE; Belgium.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7023

Discovery of &lt;i&gt;Centobnaster humesi&lt;/i&gt;, new genus, new species (Erebonasteridae), the most primitive poecilostomatoid copepod known, in New Caledonian deep waters
Provedor de dados: 27
Autores: Huys, R.; Boxshall, G.
A new genus, &lt;i&gt;Centobnaster&lt;/i&gt;, is proposed to accommodate a single female collected from deep water northeast of New Caledonia. &lt;i&gt;Centobnaster humesi&lt;/i&gt;, new species, is placed in the family Erebonasteridae (Poecilostomatoida) on account of the distinct palp on the mandible and the external structure of the female genital system, comprising ventral paired copulatory pores and dorsolateral gonopores. &lt;i&gt;Centobnaste&lt;/i&gt;r is considered the most primitive poecilostomatoid copepod known today because of the combined presence of 7-segmented antennules, a separate palp and unmodified gnathobase on the mandible, ventrally located paired copulatory pores, and midventral fifth legs jointed by an intercoxal sclerite. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Centobnaster; Centobnaster humesi; Cyclopoida; Erebonasteridae; Misophrioida; Paralubbockiidae Boxshal; Poecilostomatoida.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7186

Experiences on importance of diet for shrimp postlarval quality
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
This paper gives an overview of own experiences with respect to the impact of dietary conditions on the quality of postlarval penaeid shirmp. Direct nutrient-specific effects are documented for highly unsaturated fatty acid (HUFA), phosphatidyl choline (PC) and ascorbic acid (AA). Specific immunostimulants may also contribute to an improved stress resistance of the shrimp fry. Last, but not least, some emphasis is placed on the role of the microflora during the hatchery rearing, the possible reduction of bacteria in the live food adminstered, and the use of probionts through the diet.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Condition factor; Diets; Disease resistance; Feed composition; Microorganisms; Polyunsaturated fatty acids; Rearing; Shrimp culture; Vitamin C; Artemia; Penaeidae [Penaeid shrimps].
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3876

The importance of turbellarians in the marine meiobenthos: a review
Provedor de dados: 27
Autores: Martens, P.M.; Schockaert, E.R.
Recent data and opinions on meiofaunal ecology are briefly reviewed; and from scattered data, the place of turbellarians in the meiobenthic community is discussed. Turbellarian diversity is of the same magnitude higher in sandy habitats than in muddy bottoms. In sand, turbellarian diversity is of the same magnitude as that of other important meiofaunal taxa, while densities range between 7-25% of the total meiofauna. Mean individual turbellarian dry weight seems to be four times that of nematodes and in sandy habitats turbellarian biomass may be equal to or exceed that of nematodes. Most turbellarian species may be considered as predators and in this respect may take the place occupied by macrofaunal species in muddy sediments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Fauna; Literature reviews; Meiobenthos; Turbellaria [Flatworms].
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3222

On the male copulatory organ of some Polycystididae and its importance for the systematics of the family
Provedor de dados: 27
Autores: Schockaert, E.R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polycystididae.
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6714

La valeur de la méthode otolithométrique pour la détermination de l'age du Merlu (&lt;i&gt;Merlucius merlucius&lt;/i&gt; - Pisces, Gadidae) en Méditerranée
Provedor de dados: 27
Autores: Dupont, E.
The otolithometric method rests on 2 (1) the agreement between the number of annual rings and the age of the fish and (2) the length of the fish being proportional to that of the otolith. The length of the fish may be grouped into 5 classes, ranging from 16, 18, 20, 25 to 27 cm though some degree of overlapping is observed. Using 300 otoliths and grouping the individuals according to the number of annual rings their otoliths bear it was possible to determine the frequency of individuals of varying lengths within a particular class. Although the results obtained by the author helped him to verify the 2nd parameter, numerous shortcomings were seen in this method. No consistent unity of measurement, which could be used for comparison, has been adopted by...
Tipo: Info:eu-repo/semantics/article
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/294777.pdf

Les Clupéomorphes (Pisces, Teleostei) du cénomien (crétace) de Kipala (Kwango, Zaïre): ostéologie et phylogénie = The clupeoids (Pisces, Teleostei) of the Cenomian (cretaceous) of Kipala (Kwango, Zaire): osteology and phylogeny
Provedor de dados: 27
Autores: Taverne, L.
"&lt;i&gt;Diplomystus&lt;/i&gt;" &lt;i&gt;dartevellei&lt;/i&gt;, &lt;i&gt;Eoknightia caheni&lt;/i&gt; and &lt;i&gt;Nolfia kwangoensis&lt;/i&gt;, the three Cenomanian clupeomorph teleosts from Kipala (Kwango, Zaire), are restudied. Their systematic position within the clupeomorph phylogeny is discussed and a phylogenetic cladogram proposed. A new genus, &lt;i&gt;Kwangoclupea&lt;/i&gt;, is erected for &lt;i&gt;"D." dartevellei&lt;/i&gt; which is the immediate apomorphic sister-group of the Ellimmichthyiformes. &lt;i&gt;Eoknightia&lt;/i&gt; is more apomorphic than &lt;i&gt;Kwangoclupea&lt;/i&gt; and represents the plesiomorphic sister-group of a clade including &lt;i&gt;Spratticeps&lt;/i&gt;, &lt;i&gt;Santanaclupea&lt;/i&gt; and the Clupeiformes....
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1422

Indirect gradient analysis of the mangal formation of Gazi Bay (Kenya)
Provedor de dados: 27
Autores: Beeckman, H.; Gallin, E.; Coppejans, E.
(1) Based on vegetation relevés of sample units along transects perpendicular to the coastline, the mangal ecosystem of Gazi Bay (Kenya) has been investigated.(2) An indirect gradient analysis is performed by the ordination method Detrended Correspondence Analysis.(3) The first ordination axis can be interpreted in terms of resistance of the different species to flooding.(4) A similar zonation pattern is found as described by Walter &amp; Steiner (1936).(5) Zonation is closely connected with morphological and ecophysiological features of the mangrove species. Therefore stomatal density has been measured. &lt;i&gt;Sonneratia&lt;/i&gt; has by far the lowest stomatal density, &lt;i&gt;Lumnitzera&lt;/i&gt; the highest.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ISW; Kenya; Gazi Bay.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3046

The behaviour of dissolved Ba in estuaries
Provedor de dados: 27
Autores: Coffey, M.; Dehairs, F.A.; Collette, O.; Luther, G.; Church, T.; Jickells, T.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10219

Métaux en traces et pollution de la côte belge et de l'estuaire de l'Escaut
Provedor de dados: 27
Autores: Peeters, E.; Das, J.; Mertens, M.; Castiaux, M.A.
Different metals (Cr, Cu, Fe, Zn, Pb and Ni) were dosed by spectrophotometry of atomic absorption in the North Sea waters and the Scheldt estuary. For some amongst them, a comparison is made between the dosage by spectrophotometry atomic absorption and the measurements by neutron activation. Copper and zinc were dosed in the organisms of three fish common in the North Sea (&lt;i&gt;Pleuronectes platessa&lt;/i&gt;, &lt;i&gt;Gadus merlangus&lt;/i&gt; and &lt;i&gt;Trachurus trachurus&lt;/i&gt;).Its results were put into a report together with its contents and nutrient salts (nitrates, nitrites and phosphates) in the same waters.
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/303552.pdf

Structure and geodynamic evolution of the Central Bransfield Basin (NW Antarctica) from seismic reflection data
Provedor de dados: 27
Autores: Prieto, M.J.; Canals, M.; Ercilla, G.; De Batist, M.
The Bransfield Basin is a young active rift basin located between the northern margin of the Antarctic Peninsula and the South Shetland Islands margin. Deception and Bridgeman Islands divide the Bransfield Basin in three subbasins, the western, central and eastern. Specific morpho-tectonic features and sediment fill differentiate each subbasin. The structure and geodynamic evolution of the Central Bransfield Basin, which is in a stage of incipient seafloor spreading, have been investigated in detail from a dense grid of single-channel seismic reflection data. The Central Bransfield Basin is dominated by two families of normal faults which are oriented northeast and northwest. The NE-trending faults define three graben systems that are roughly parallel to...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=314

Community structure and functional roles of meiofauna in the North Sea
Provedor de dados: 27
Autores: Heip, C.H.R.; Huys, R.; Alkemade, R.
Knowiedge on community structure of North Sea meiofauna has greatly increased recently. A quasisynoptic picture of meiofauna densities and copepod community structure from 171 stations of the southern North Sea, sampled in April–May 1986, has been obtained during the North Sea Benthos Survey. Latitudinal patterns in meiofauna abundance and copepod weight, abundance and diversity exist in an area between 51°30'N and 58°30'N. Using TWINSPAN-classification five major groups of copepod species can be recognized which are related to sediment type, latitude and depth. The part of the meiofauna in total benthic energy flow, their role in the benthic food web and in biogeochemical cycles is discussed based on existing literature. There are still considerable gaps...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7245

Steltloper populaties en macrozoobenthos in een veranderend estuarium: de Oosterschelde (Nl.) = Wader populations and macrozoobenthos in a changing estuary: the Oosterschelde (The Netherlands)
Provedor de dados: 27
Autores: Meire, P.
Habitat verlies en degradatie is één van de belangrijke ecologische problemen van deze eeuw. Hoewel alle ecosystemen hieronder te lijden hebben, blijken wetlands of waterrijke gebieden, op wereldschaal vrij zeldzame gebieden, onder zeer zware antropogene druk te staan. Het is daarom ook niet te verwonderen dat deze ecosystemen sinds meerdere jaren een belangrijke prioriteit vormen voor het natuurbehoud. Binnen de wetlands vormen estuaria zeer produktieve systemen waarvan het rijke voedselaanbod wordt benut door grote aantallen steltlopers, die buiten het broedseizoen bijna volledig op dergelijke getijdengebieden zijn aangewezen. Het belang van het Deltagebied (NI.) en met name de getijdengebieden van Ooster- en Westerschelde voor watervogels worden kort...
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Benthos; Birds; Estuaries; River; Water.
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/5961.pdf

&lt;i&gt;Cyclotella scaldensis&lt;/i&gt;, een nieuwe diatomeeënsoort uit het Schelde-estuarium
Provedor de dados: 27
Autores: Muylaert, K.; Sabbe, K.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280709.pdf

The systematics and ecology of free-living marine nematodes
Provedor de dados: 27
Autores: Heip, C.H.R.; Vincx, M.; Smol, N.; Vranken, G.
Nematodes are the most abundant metazoans in marine (littoral, estuarine, coastal and oceanic) sediments, extending from the high-water mark into the deepest oceanic trenches (Nicholas, 1975). All marine free-living nematodes are considered to be members of the meiobenthos; small organisms, mainly metazoans, which are separated from the larger macrobenthos either on a methodological basis (i.e. as all animals passing a 1 mm or a 0.5 mm sieve) or a taxonomic basis (i.e. particular animal groups such as Nematoda, Harpacticoida, Gastrotricha, Kinorhyncha, Tardigrada, Foraminifera etc. which consist exclusively or mainly of small species living in sediments). In most circumstances, nematodes are numerically the dominant group of the meiofauna. In fact, they...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Systematics; Taxonomy; Nematoda [Nematodes].
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3417

Progress in larviculture of the Atlantic halibut &lt;i&gt;Hippoglossus hippoglossus&lt;/i&gt;
Provedor de dados: 27
Autores: Lein, I.; Gulbrandsen, J.; Holmefjord, I.; Refstie, T.; Bolla, S.; Olsen, Y.; Reitan, K.I.; Vadstein, O.; Øie, G.; Harboe, T.; Sorgeloos, P.
The main goal of the project is to develop intensive industrial scale production systems for halibut fry. Halibut eggs were obtained from three brood stocks both by stripping and by natural spawning. Photoperiod manipulation is used to increase the spawning period, and spawning now takes place in the period February to June/July. The eggs are disinfected and incubated in up-stream conical tanks (8°C, darkness) and transferred to larval incubators after hatching. Two incubator-types are used; small glass bowls (3 liter), run stagnant or semi-stagnant, or large conical silos (0.7-15m³) run with continuous water flow (4-8°C, darkness). These different systems can be used to bring the yolk sac larvae of halibut up to the stage of first feeding. The yolk sac...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hippoglossus hippoglossus (Linneaus; 1758).
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2784

Gegevensverzameling over de productie, afgifte en inzameling van scheepsbedrijfsafval van de binnenvaart in vier Vlaamse zeehavens en langs de Vlaamse waterwegen
Provedor de dados: 27
Autores: Gonsaeles, G.; Maes, F.
Tipo: Info:eu-repo/semantics/book
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5087

Mysidlan 4.0 manual (draft)
Provedor de dados: 27
Autores: Deprez, T.
This manual gives a brief overview of the main features of the taxonomy software Mysidlan 4.0. A first review of the manual was done by Dr Ward Vanden Berghe (VLIZ). The software Mysidlan 4.0 was developed by Saudades during 1999-2000
Tipo: Info:eu-repo/semantics/book
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/226701.pdf

Population biology of &lt;i&gt;Anguillicola crassus&lt;/i&gt; in the final host &lt;i&gt;Anguilla anguilla&lt;/i&gt;
Provedor de dados: 27
Autores: Thomas, K.; Ollevier, F.P.
Eels were sampled twice a month (March 1990 though March 1991) at the Kolenhaven (Albertcanal, Genk, Belgium) and examined for &lt;i&gt;Anguillicola crassus&lt;/i&gt; nematodes in the swimbladder. Averaged over all samples, 90.2% of the 345 eels were infected with a mean intensity (averaged for all stages) of 17 nematodes. Thirty-one percent of all nematodes, which were adult worms or their remnants, were present in the swimbladder lumen, while the other 69% which consisted of the third or fourth larval stage and preadults were found in the swimbladder wall. No clear seasonal fluctuations in parasite prevalence or mean intensity were observed. Both L&lt;sub&gt;3&lt;/sub&gt;-larvae and mature adult worms were present throughout the year. Eggs or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance Endoparasites Life history Parasitic diseases Population density Seasonality Statistical analysis Swim bladder Anguilla anguilla (Linnaeus; 1758) Anguillicola crassus Belgium.
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/299071.pdf

An improved separator box for &lt;i&gt;Artemia&lt;/i&gt; nauplii and other phototactic invertebrates
Provedor de dados: 27
Autores: Persoone, G.; Sorgeloos, P.
1. A simple cylindrical hatching and separator box is described for &lt;i&gt;Artemia salina&lt;/i&gt;nauplii (and other phototactic invertebrates), in which the "corner seeking effect" responsible for poor separation is avoided, and from which nauplii can be recovered very conveniently. 2. Separation is achieved by partly unscrewing an internal and closed cylinder from its fixed counter-part glued to the bottom of the box, till two slits are freed through which the nauplii migrate from the darkened internal hatching cylinder into the illuminated exterior compartment. Rescrewing the former cylinder separates the larvae from debris and unhatched eggs.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hatching; Instruments; Nauplii; Phototaxis; Artemia.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3460

L'hémocyanine et la glande branchiale de &lt;i&gt;Sepia officinalis&lt;/i&gt; L. (Mollusque Céphalopode)
Provedor de dados: 27
Autores: Decleir, W.; Richard, A.; Lemaire, J.; Wolf, G.
The branchial gland from the cuttlefish (cephalopod mollusc) consists of extensively irrigated tissue, which shows a typical ultrastructure of protein-secreting cells: prominent nucleolus, elaborate system of granular endoplasmic reticulum and active Golgi apparatus. The possible hemopoietic role of the gland is sustained by our biochemical results.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sepia officinalis Linnaeus; 1758 [Common cuttlefish].
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3568

&lt;i&gt;Mesacanthion diplechma&lt;/i&gt; (Nematoda: Thoracostomopsidae), a link to higher trophic levels?
Provedor de dados: 27
Autores: Hamerlynck, O.; Vanreusel, A.
The nematode Mesacanthion diplechma Southern is relatively rare in sediments of the Southern Bight of the North Sea and the Dutch Delta. Strangely, it is about the only free-living nematode found in the stomachs of the sand goby Pomatoschistus minutus Pallas from the same general area and even more peculiarly several hundred animals were found in sand gobies from the central part of the Oosterschelde. The large size of the nematode and its preference for the superficial sediment layers are probable causes for the first observation. For the second observation there is at present no explanation that can be substantiated. Some nematodes are known to aggregate on dead animals and possibly the Oosterschelde gobies may have been feeding on such an aggregation.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7256

A rapid method of extracting meiobenthic nematodes and copepods from mud and detritus
Provedor de dados: 27
Autores: Heip, C.H.R.; Smol, N.; Hautekiet, W.
The extraction of nematodes and harpacticoid copepods from muddy sediments or sediments containing a large amount of organic detritus can be achieved through a series of centrifugations of the material in a sacharose solution of at least 900 g/l. The number of individuals appearing in the supernatant after each centrifugation forms a geometric series, with a ratio which is dependent on the amount of material, the concentration of the saccharose solution, and the acceleration of the centrifuge. Knowledge of this ratio allows an estimation of density after only one centrifugation. More than 90 % of the animals present in the sample can be extracted after only two centrifugations.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3492

Incubation under fluctuating light conditions provides values much closer to real &lt;i&gt;in situ&lt;/i&gt; primary production
Provedor de dados: 27
Autores: Joiris, C.R.; Bertels, A.
Comparison of measured primary production, by radioactive carbonate incorporation or oxygen production, with diel variations of oxygen, inorganic carbon and particulate carbon, shows that the net in situ production often exceeds the measured activity, especially in deeper marine ecosystems. In vitro incubations under fluctuating light conditions provide higher values of primary production at low light intensities, both with cultures and with natural populations. The same results are obtained with in situ incubations, by varying the depth of incubation. This method allows reevaluation of primary productivity at low light intensities and provides results in agreement with the in situ variations of oxygen, inorganic carbon and particulate carbon. It can...
Tipo: Info:eu-repo/semantics/article
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/303172.pdf

Improved use of the fluidized bed dryer for &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Bosteels, T.; Tackaert, W.; Van Stappen, G.; Sorgeloos, P.
A fluidized bed dryer for processing &lt;i&gt;Artemia&lt;/i&gt; cysts at the temperatures above 40°C is described and evaluated. The design is directed towards electronic temperature regulation and optimal design of the drying unit. The described fluidized bed dryer proves to be reliable for cyst processing, using inflow air temperatures up to 90°C. The use of this elevated temperature ensures a higher drying rate, resulting in a drying capacity more than 4 times higher than when using inflow air of 40°C. Electronic temperature regulation resulted in a large flexibility of the temperature regime inside the drying unit.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Artemia.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2919

Characterization of &lt;i&gt;Artemia&lt;/i&gt; from different localities in Tunisia with regard to their use in local aquaculture
Provedor de dados: 27
Autores: Van Ballaer, E.; Versichele, D.; Vanhaecke, P.; Léger, P.; Ben Abdelkader, N.; Turki, S.; Sorgeloos, P.
&lt;i&gt;Artemia&lt;/i&gt; cysts have been collected from different saltworks and natural salt lakes in Tunisia. The cyst material was processed and used for the following characterization analyses: cyst and naupliar biometrics, cyst hatching characteristics, fatty acid pattern of the nauplii, nutritional value of the nauplii for mysid shrimp, naupliar growth rate and temperature resistance, mode of reproduction, and characterization of sibling species. The cross-breeding tests and cyst biometrics reveal that only &lt;i&gt;Artemia tunisiana&lt;/i&gt; occurs in Tunisia. Although quality improvements may be expected through improved harvesting, Tunisian &lt;i&gt;Artemia&lt;/i&gt; have acceptable hatching characteristics and are a good food for mysid shrimp....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Tunisia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3207

The major-element composition of suspended matter in the Zaire River and estuary
Provedor de dados: 27
Autores: Scholkovitz, E.R.; Van Grieken, R.; Eisma, D.
A study of the major-element (Si, Al, Fe, K, Mg, Ca, Ti, Mn and P) composition of suspended matter in the surface waters of the Zaire River and Estuary revealed that this material was enriched in Al, Fe and P and depleted in Si, Ca, K and Mg relative to recent pelagic sediments and to suspended matter carried by the Amazon River. These enrichments and depletions are characteristic of soils in regions of intense chemical weathering as is the situation in western equatorial Africa. Suspended samples from waters near the bottom of the estuary have compositions which indicate that this material has undergone much less chemical weathering. These particles were of greater size and most likely contained a larger proportion of quartz, micas, feldspars and oxides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Suspended inorganic matter Africa; Zaire R.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3619

The new geological map of Northwestern Flanders, Southern Bight North Sea
Provedor de dados: 27
Autores: De Ceukelaire, M.; Jacobs, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Belgium; West-Vlaanderen (Province).
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2574

The productivity of marine meiobenthos
Provedor de dados: 27
Autores: Heip, C.H.R.; Herman, P.M.J.; Coomans, A.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological production Meiobenthos ANE; Belgium.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7006

Horizontal distribution of the Plathelminthes in a sandy beach of the Belgian coast
Provedor de dados: 27
Autores: Jouk, P.E.H.; Martens, P.M.; Schockaert, E.R.
Studies of the horizontal distribution of the Plathelminthes in sandy beaches have up to now mainly been carried out on the German island of Sylt where the beaches consist of a steep "Prallhang" and a flat wadden area. Beaches of the Belgian coast are very flat, only gently sloping and with a different sediment compared to the Sylt beaches. This study reports on the distribution of the turbellarians in such a flat beach; the discussion is mainly focussed on the comparison with the results of the German investigators.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beaches Coastal zone Geographical distribution Horizontal distribution Plathelminthes ANE; Belgium; Belgian Coast.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2990

A note on salinity and temperature in some Moroccan brackish waters
Provedor de dados: 27
Autores: Heip, C.H.R.; De Coninck, L.A.P.; Engels, P.; Engler, G.; Verschueren, G.
A series of measures of temperature and salinity was made in different brackish waters along the Atlantic coast of Morocco. All waters examined were polyhaline, except for a series of hyperhaline salt mines. The importance of temperature in the sediment is discussed: temperature in the top layer may rise considerably (7° C) above air temperature. However, in the deeper layers, temperature is lower than in the air and the water.
Tipo: Info:eu-repo/semantics/article
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/260556.pdf

Liquid chromatographic determination of efficacy of incorporation of trimethoprim and sulfamethoxazole in brine shrimp (&lt;i&gt;Artemia&lt;/i&gt; spp.) used for prophylactic chemotherapy of fish
Provedor de dados: 27
Autores: Nelis, H.; Léger, P.; Sorgeloos, P.; De Leenheer, A.P.
The brine shrimp &lt;i&gt;Artemia&lt;/i&gt; , an excellent live food source in aquaculture, has been studied as a carrier to deliver selected chemotherapeutic agents to fish for prophylactic treatment of infectious diseases. To monitor the efficiency of incorporation of trimethoprim and sulfamethoxazole in &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; franciscana&lt;/i&gt;, a sensitive and specific analytical method was developed. It is based on homogenization of &lt;i&gt;Artemia&lt;/i&gt; nauplii in methanol, extraction of lipids with hexane, solid-phase cleanup on C&lt;sub&gt;18&lt;/sub&gt; cartridges, and reversed-phase liquid chromatography with detection at 210 nm. The method is sensitive (detection limit, on the order of 3 µg/g with a sample quantity of 30 mg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Fish culture; Infectious diseases; Medicine; Artemia.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262329.pdf

Standardization of aquatic bioassays: compromises between biological and economical criteria
Provedor de dados: 27
Autores: Persoone, G.
A variety of ecotoxicological methods have been worked out and are described in the scientific literature to experimentally predict the impact of chemical substances on aquatic terrestrial biota. Only during recent years have serious efforts been made at both the national and international level to select a few bioassays which should be standardized for general applicability. The choice for a standard bioassay, of the test species as well as of the criterion to assess the dose-effect relationship is a matter of the compromises which one is willing to make between the factors ecological representativeness and sensitivity on one hand, and mangeability in the laboratory and cost of the test on the other hand. This assertion is demonstrated for the aquatic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioassays; Standardization.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3686

Single particle analysis of suspended matter in the Makasar Strait and Flores Sea with particular reference to tin-bearing particles
Provedor de dados: 27
Autores: Dekov, V.; Van Put, A.; Eisma, D.; Van Grieken, R.
Suspended matter samples filtered from surface waters and two depth profiles from the Flores Sea and Makasar Strait were investigated by electron probe X-ray microanalysis (EPXMA) and laser microprobe mass analysis (LAMMA). EPXMA yielded discrete morphological and chemical analysis of the major particle types of suspended matter. Cluster analysis revealed that thirteen main particle types described the composition of suspended matter of the Flores Sea and Makasar Strait. Silicates, aluminosilicates and Fe-oxyhydroxides were the predominant particle types. Suspended matter of the basins studied contained high levels of tin-bearing particles. On the basis of their composition, tin particles can be divided into three groups: (1) tin oxide/hydroxides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition Particulate organic matter Primary production Suspended particulate matter Tin ISEW; Flores Sea.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4013

Macrobenthos of the Schelde estuary: predicting macrobenthic species responses in the estuarine environment: a statistical analysis of the Schelde estuary macrobenthos within the ECOFLAT project
Provedor de dados: 27
Autores: Ysebaert, T.J.; Meire, P.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Algae Benthos Estuaries Belgium; Zeeschelde.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/260085.pdf

Het landschap van de Schelde
Provedor de dados: 27
Autores: Antrop, M.; van der Reest, P.
From prehistoric times the river Scheldt has changed its course from south-north to east-west. Relicts of the old river valley still exist, such as the meanders of Kalken and Berlare, the Brabant Wall and enumarable creeks in the polders of Zeeland. The effects of the rising sea level are quite remarcable, particularly in Flanders, where the highwater tide level has risen 2 m since 1800 and the rivers Durme and Rupel receive much more sediments nowadays. The building of dykes started in the 11 th century lasted until quite recently. As the sea level rise will continue more actiVities can be expected for the safety of the inhabitants. This will have a further impact on the landscape of the Scheldt.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecosystems Embankments History Landforms Polders Belgium; Lower Schelde Basin Belgium; Schelde R. Belgium; Upper Schelde Basin.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280695.pdf

Marine influences on aerosol composition in the coastal zone
Provedor de dados: 27
Autores: Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W.
Biased data set averaging has been used to examine aerosol elemental composition data for air mass directional effects. Samples collected in north Florida during spring and summer 1973 were influenced by local and remote continental sources and additionally by maritime sources when air flow was southerly. Judgments of air movements during the collection of 32 5-stage cascade impactor samples were made by examination of daily surface weather maps, 3-hourly surface winds in Tallahassee, and semi-diurnal balloon soundings to 1,524 meters. Averages of elemental abundances as a function of particle size, determined by proton-induced X-ray emission, PIXE, were computed for a 14-sample set biased towards continental air flow, excluding 12 additional samples where...
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3508

Les Crevettes du Nigeria
Provedor de dados: 27
Autores: Lefevere, S.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caridea [Shrimps] ASE; Nigeria.
Ano: 1970
URL: http://www.vliz.be/imisdocs/publications/276632.pdf

Ecology of fouling on submerged surfaces in a polluted harbour
Provedor de dados: 27
Autores: Persoone, G.
Growth on submerged substrates (fouling or "Aufwuchs") has already been the object of numerous studies especially with regard to its economic implications.  The scarcity of investigations on the influence of pollution on development and evolution of the fouling-biocoenosis is surprising. As far as we know the smaller fauna and flora in this particular situation have never been studied quantitatively.  Therefore, in 1963, 1964 and 1965, a number of experiments were carried out in the harbour of Ostend (Belgium) on submerged substrates of different nature, in order to study the following less known aspects of fouling: a) the successive stages in the development of fouling, from bacteria to macro-organisms.  b) the influence of several factors on its...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fouling Harbours Marine pollution ANE; Belgium; Oostende Harbour.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3431

Eten en gegeten worden in het Schelde-estuarium
Provedor de dados: 27
Autores: Moens, T.; Herman, P.M.J.; Ysebaert, T.J.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280698.pdf

On the significance of aggregation in some benthic marine invertebrates
Provedor de dados: 27
Autores: Heip, C.H.R.
Populations of most benthic marine invertebrates show an aggregated spatial pattern. This has been shown to be the case for Foraminifera, Gastropoda, Bivalvia, Polychaeta, Oligochaeta, Nematoda, Copepoda, Ostracoda, Amphipoda and Isopoda. Only among the Bivalvia does there seem to be important exceptions to this rule. Evidence is presented that pattern formation is the result of two opposing forces: (1) the need for sufficient energy in which space is more evenly partitioned amongst individuals; and (2) the necessity for contact between individuals when copulation is part of the reproductive scheme. Since aggregation is the rule, the strategy in the majority of benthic marine invertebrates appears to be a reduction in the risk of failing to find a partner...
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3521

Effects of technetium on marine micro-organisms
Provedor de dados: 27
Autores: Moureau, Z.; Jakubowski-Mania, B.; Oleski-Gebski, M.J.; Bossus, A.; Vandecasteele, C.M.; Cogneau, M.; Bonotto, S.; van der Ben, D.
Eleven bacterial species have been isolated from the upper layer of intertidal sediments collected along the Belgian coast (Coxyde). Three of them (no. 1, 4 and 11) have been chosen for their halophilous character. One species has been identified as &lt;i&gt;Flavobacterium halmephilum&lt;/i&gt;, the other two are being investigated. Effects of technetium (&lt;sup&gt;99&lt;/sup&gt;Tc) have been studied on a mixed bacterial population isolated from sediments, as well as on the three halophilic species.At the concentrations utilized in this work (up to 100 microg ml&lt;sup&gt;-1&lt;/sup&gt;), &lt;sup&gt;99&lt;/sup&gt;Tc has no evident effects on bacterial growth. Uptake of technetium (&lt;sup&gt;99&lt;/sup&gt;Tc and/or &lt;sup&gt;95m&lt;/sup&gt;Tc) has been...
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/303560.pdf

Review of some aspects of marine fish larviculture
Provedor de dados: 27
Autores: Sorgeloos, P.; Dehasque, M.; Dhert, Ph.; Lavens, P.
Dependable availability of quality fry to stock grow-out production systems has been one of the most critical factors in the commercial success of industrial production of fish and shellfish. Large-scale production of marine fish fry was realized only from the 1980s onwards. Although Japan was the pioneer with the red sea bream (&lt;i&gt;Pagrus major&lt;/i&gt;), the most competitive hatchery methods were eventually developed in Europe for the sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) and the gilthead sea bream (&lt;i&gt;Sparus aurata&lt;/i&gt;). Improved knowledge of larval dietary requirements, not the least with regard to (n-3) highly unsaturated fatty acids (HUFAs), combined with the adoption of live-food enrichment protocols allowed the...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2627

Fish species of the lower Zeeschelde (Belgium): a comparison with historical checklists
Provedor de dados: 27
Autores: Van Damme, P.A.; Hostens, K.; Ollevier, F.P.
In the 19th century approximately 40 fish species (excluding freshwater species) were recorded in the lower Zeeschelde between the Dutch/Belgian border and Antwerpen. In comparison with the 19th century and the first half of the 20th century the total number of fish species in the Beneden-Zeeschelde has decreased considerably. The present checklist (1991-1993) of fishes of the lower Zeeschelde (excluding freshwater species) contains only 26 species. The fish community is composed of marine species (13), catadromous species (3), estaurine residents (9) and one anadromous fish species. Besides, 6 freshwater fis species have presently been recorded. The distribution of diadromous fishes, estaurine residents and freshwater fishes is probably greately affected...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1575

The stability of n-3 highly unsaturated fatty acids in various &lt;i&gt;Artemia&lt;/i&gt; populations following enrichment and subsequent starvation
Provedor de dados: 27
Autores: Triantaphyllidis, G.; Coutteau, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2638

Sur les propagules de &lt;i&gt;Fosliella farinosa&lt;/i&gt; (Lamouroux) Howe var. &lt;i&gt;farinosa&lt;/i&gt; (Rhodophyceae-Cryptonemiales)
Provedor de dados: 27
Autores: Coppejans, E.
The author describes and figures propagules of &lt;i&gt;Fosliella farinosa&lt;/i&gt; (Lamouroux) Howe var. &lt;i&gt;farinosa&lt;/i&gt; after material from Calvi (Corsica). These reproductive organs have been figured -without any description- by Solms-Laubach (1881) for&lt;i&gt;Fosliella farinosa&lt;/i&gt; var. &lt;i&gt;solmsiana&lt;/i&gt; (Falkenberg) Foslie. They have never been observed again since then.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fosliella M.Howe; 1920.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3583

Freeliving marine nematodes from East African coasts &lt;i&gt;Bathyepsilonema anulosum&lt;/i&gt; sp. n. and &lt;i&gt;Leptepsilonema richardi&lt;/i&gt; sp. n.
Provedor de dados: 27
Autores: Verschelde, D.; Vincx, M.
Two new epsilonematid nematode species from Kenyan intertidal areas are describe: &lt;i&gt;Bathyepsilonema anulosum&lt;/i&gt; sp. n. -characterized by the large number of body-annules (118-124); small amphid, straight ambulatory setae and the very small copulatory thorns of the males- and &lt;i&gt;Leptepsilonema richardi&lt;/i&gt; sp. n., -characterized by the sexual dimorphism in the amphid, the ornamentation of the body cuticle and the umbrella shaped captulum in the males.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology New species Taxonomy Bathyepsilonema anulosum Epsilonematidae Leptepsilonema richardi ISW; Kenya.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2898

L'association des amphipodes et des &lt;i&gt;Polydora ciliata&lt;/i&gt; à la côte belge
Provedor de dados: 27
Autores: Daro, M.H.
The worm &lt;i&gt;Polydora ciliata&lt;/i&gt; is colonized, at the Belgian coast, by 2 amphipods: &lt;i&gt;Jassa falcata&lt;/i&gt; in the surf zone and &lt;i&gt;Corophium insidiosum&lt;/i&gt; in calm waters. This difference is caused essentially by the morphological characteristics of the 2 amphipodes: &lt;i&gt;Jassa falcata&lt;/i&gt; possesses a pair of very strong gnathopodes II, allowing it to hold on firmly in strong currents, while &lt;i&gt;Corophium insidiosum&lt;/i&gt; lacks these characteristics.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Associated species Colonization Amphipoda [amphipods] Polydora (Polydora) ciliata (Johnston; 1838) [Bristleworm] ANE; Belgium; Belgian Coast.
Ano: 1970
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3448

Fish fauna of mangrove creeks, seagrass meadows and sand flats in Gazi Bay: a study with nets and stable isotopes
Provedor de dados: 27
Autores: van der Velde, G.; van Avesaath, P.H.; Ntiba, M.J.; Mwatha, G.K.; Marguiller, S.; Woitchik, A.F.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/277752.pdf

La situation de l’ostréiculture dans le Bassin de Chasse d’Ostende de 1939 à 1948
Provedor de dados: 27
Autores: Leloup, E.; Halewyck, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oyster culture Ostrea edulis Linnaeus; 1758 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1951
URL: http://www.vliz.be/imisdocs/publications/237985.pdf

&lt;i&gt;Cis&lt;/i&gt;- and &lt;i&gt;trans&lt;/i&gt;-canthaxanthin levels in &lt;i&gt;Artemia&lt;/i&gt; cysts of different geographical origin
Provedor de dados: 27
Autores: Nelis, H.; Lavens, P.; Sorgeloos, P.; Van Steenberge, M.; De Leenheer, A.P.
The carotenoid composition of &lt;i&gt;Artemia&lt;/i&gt; cysts from 17 geographical strains was studied. All-&lt;i&gt;trans&lt;/i&gt;-canthaxanthins and &lt;i&gt;cis&lt;/i&gt;-canthaxanthins were quantitatively determined using a non-aqueous reversed phase chromatographic method. In dehydrated cysts, the average &lt;i&gt;cis&lt;/i&gt;- and &lt;i&gt;trans&lt;/i&gt;-canthaxanthin levels (+/- SD) were 152 +/- 52 and 134 +/- 42 µg/g, respectively (range 38-227 and 67-201µg/g). The corresponding concentrations in hydrated cysts were (&lt;i&gt;cis&lt;/i&gt;) 177 +/- 60 µg/g (range 47-271 µg/g) and (&lt;i&gt;trans&lt;/i&gt;) 112 +/- 35 µg/g (range 52-169 µg/g). The &lt;i&gt;cis/trans&lt;/i&gt; concentration ratios averaged 1.13 (range 0.57-1.47) and 1.60 (range...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3196

On the identity and nomenclature of &lt;i&gt;Paracanthonchus caecus&lt;/i&gt; (Bastian, 1865), with a redefinition of the genus &lt;i&gt;Paracanthonchus Micoletzky&lt;/i&gt; (Nematoda, Cyatholaimidae)
Provedor de dados: 27
Autores: Vincx, M.; Sharma, J.; Smol, N.
A historical review of the systematics of &lt;em&gt;Paracanthonchus caecus&lt;/em&gt; (Bastian, 1865) and a comparison of specimens from different localities show that this “species” in fact comprises four distinct species. &lt;em&gt;Paracanthonchus caecus&lt;/em&gt; Micoletzky, 1924 nec &lt;em&gt;P. caecus&lt;/em&gt; (Bastian, 1865) is designated as the valid type species of the genus &lt;em&gt;Paracanthonchus. P. heterodontus&lt;/em&gt; (Schulz, 1932) and &lt;em&gt;P. thaumasius&lt;/em&gt; (Schulz, 1932) are re-established. &lt;em&gt;P. caecm&lt;/em&gt; sensu Gerlach 1965 is considered as a distinct species: &lt;em&gt;P. gerlachi&lt;/em&gt; sp.n. &lt;em&gt;P. canadensis&lt;/em&gt; sp.n. is described and is very close to &lt;em&gt;P. caecus&lt;/em&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paracanthonchus caecus (Bastian; 1865) Paracanthonchus micoletzkyi.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7008

The use of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; in aquaculture
Provedor de dados: 27
Autores: Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3695

Ecometabolism of a shallow marine lagoon at Ostend (Belgium): 3. The role of planktonic heterotrophic bacteria
Provedor de dados: 27
Autores: Podamo, J.
In order to assess the importance of the recycling of organic matter into nutrients in the water column, the bacterial biomass was evaluated by the spread-plate counts method, and the heterotrophic activity by two methods: initial consumption rate of oxygen and anaplerotic bicarbonate fixation.  The biomass of aerobic heterotrophic bacteria does not reflect the heterotrophic activity and cannot be used as an index for this activity.  This activity is always important as a recycling process for the phytoplanktonic organic matter it is depending on. Different periods can be recognized, with varying importance (relative to other recycling factors) of bacterial activity.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3538

Temporal and spatial structure in the hyperbenthic community of a shallow coastal area and its relation to environmental variables
Provedor de dados: 27
Autores: Hamerlynck, O.; Mees, J.
Monthly sampling with a sledge type gear at 24 stations in the shallow coastal area in front of the Dutch Delta (southern bight of the North Sea) shows that high densities of a variety of animals are present in the lower 1 m of the water column: the hyperbenthos. Hyperbenthic community structure is strongly dominated by seasonal fluctuations due to the sequential appearance, high abundance and disappearance of the different species of temporary hyperbenthos. In winter and early spring, when the community is dominated by its permanent residents, spatial patterns emerge. Averaged over the year, these spatial patterns are consistent with the hydrodynamic regime in the system. Sedimentation of silt occurs in the same sheltered areas where the highest biomass...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2699

Slibhuishouding van het Schelde estuarium
Provedor de dados: 27
Autores: Wartel, S.; van Eck, G.Th.M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Estuaries Sediment distribution Sediment dynamics Sediment properties ANE; Belgium.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9167

KERFIX, a time series station in the Southern Ocean: a presentation
Provedor de dados: 27
Autores: Jeandel, C.; Ruiz-Pino, E.; Gjata, E.; Poisson, A.; Brunet, C.; Charriaud, E.; Dehairs, F.A.; Delille, D.; Fiala, M.; Fravalo, C.; Miquel, J.C.; Park, Y.-H.; Pondaven, P.; Quéguiner, B.; Razouls, S.; Shauer, B.; Tréguer, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10249

Effect of lipid supplementation on growth, survival and fatty acid composition of bivalve larvae
Provedor de dados: 27
Autores: Coutteau, P.; Caers, M.; Mallet, A.; Moore, W.; Manzi, J.J.; Sorgeloos, P.
Lipids, particularly triglycerides, play an important role in early life stages of bivalves as a source of energy and essential fatty acids. Ingestion and incorporation of the fatty acids supplied through lipid emulsions were verified analytically for larval oysters &lt;i&gt;Ostrea edulis&lt;/i&gt;. Changes of the fatty acid composition, in particular of (n-3) highly unsaturated fatty acids (n-3 HUFA), were demonstrated in total lipids, polar lipids and triglycerides of oyster larvae fed the lipid emulsions as a supplement to &lt;i&gt;Isochrysis galbana&lt;/i&gt; (clone T-Iso), and were dependent on the level and proportion of (n-3) HUFA present in the emulsion. Preliminary culture trials with &lt;i&gt;Mercenaria mercenaria&lt;/i&gt; showed better growth...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2556

Transport et accumulation de polluants dans l'estuaire de l'Escaut
Provedor de dados: 27
Autores: Wollast, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/236132.pdf

The role of water-sediment interaction, in the Ostend Sluice-Dock with regard to the toxicity of pollutants to invertebrate larvae
Provedor de dados: 27
Autores: Benijts, F.; Versichele, D.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3517

Validation expérimentale du modèle. Un exemple: la circulation résiduelle et la caractérisation des masses d'eau dans la zone côtière belge
Provedor de dados: 27
Autores: Beckers, O.; Wollast, R.; Nihoul, J.C.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266899.pdf

Changes in the ratio of the sulcus acusticus area to the sagitta area of &lt;i&gt;Pomatoschistus minutus&lt;/i&gt; and &lt;i&gt;P. lozanoi&lt;/i&gt; (Pisces, Gobiidae)
Provedor de dados: 27
Autores: Arellano, R.V.; Hamerlynck, O.; Vincx, M.; Mees, J.; Hostens, K.; Gijselinck, W.
The &lt;i&gt;Pomatoschistus minutus&lt;/i&gt; (Pallas) and &lt;i&gt;P. lozanoi&lt;/i&gt; (de Buen) stock of the ebb-tidal delta of the former Grevelingen estuary was sampled monthly from September 1992 to October 1993. Sagittae were extracted and the areas of the sagitta and sulcus acusticus were measured with a digitizer. The frequency response and auditory threshold of these two sympatric goby species were determined from the ratio of the sulcus acusticus area to the sagitta area (S:O ratio). The S:O ratio of &lt;i&gt;P. minutus&lt;/i&gt; increased while in &lt;i&gt;P. lozanoi&lt;/i&gt; the S:O ratio was constant with increasing standard length. The average S:O ratio of &lt;i&gt;P. lozanoi&lt;/i&gt; was significantly higher than that of &lt;i&gt;P....
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5646

The effect of dietary phosphatidylcholine in postlarval penaeid shrimp: 1. Diet preparation
Provedor de dados: 27
Autores: Tackaert, W.; Camara, M.R.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2900

Mercury in the bivalves &lt;i&gt;Crassostrea tulipa&lt;/i&gt; and &lt;i&gt;Perna perna&lt;/i&gt; from Ghana
Provedor de dados: 27
Autores: Joiris, C.R.; Holsbeek, L.; Otchere, F.A.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mercury Crassostrea tulipa Perna perna [brown mussel] ASE; Ghana.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6823

Note sur le nannoplankton de l'estuaire du Tamar (Plymouth, Grande-Bretagne): étude d'un transect couvrant tout le gradient de salinité
Provedor de dados: 27
Autores: Mommaerts, J.-P.
The Tamar estuary has been sampled from sea to freshwater. Salinity and chlorophyll &lt;i&gt;a&lt;/i&gt; have been measured and nannoplankton determined. Some nannoflagellates have been cultured and their salinity range tested.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuaries Nannoplankton Salinity gradients ANE; British Isles; England; Tamar Estuary.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3446

The production of &lt;i&gt;Cyprideis torosa&lt;/i&gt; Jones 1850 (Crustacea, Ostracoda)
Provedor de dados: 27
Autores: Herman, P.M.J.; Heip, C.H.R.; Vranken, G.
The ostracod &lt;i&gt;Cyprideis torosa&lt;/i&gt; Jones,1985 is a dominant species in the meiofauna of brackish water habitats. Its production in the field over a five-year period has been calculated using two production models. The first model uses the age-distribution of shells preserved in the sediment to assess the stage-specific mortality rates and the stage durations. The second model is the size-frequency model, modified for use with development stages instead of size-classes. Productions calculated with both methods agree very well. Their values are 9.7 and 9.2 g dwt.m&lt;sup&gt;-2&lt;/sup&gt;y&lt;sup&gt;-1&lt;/sup&gt; respectively. The yearly P/B-ratio is 2.7 or 2.6y&lt;sup&gt;-1&lt;/sup&gt;, production efficiency P/A is 0.38 or 0.37. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Secondary production; Cyprideis torosa.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3396

Six new &lt;i&gt;Richtersia&lt;/i&gt; species (Nematoda, Selachinematidae) from the Mediterranean Sea
Provedor de dados: 27
Autores: Soetaert, K.; Vincx, M.
Six new species of the genus &lt;i&gt;Richtersia&lt;/i&gt; Steiner, 1916 are described from the Mediterranean Sea: &lt;i&gt;R. bathyalis&lt;/i&gt; sp.n., &lt;i&gt;R. spinosa&lt;/i&gt; sp.n., &lt;i&gt;R. heipi&lt;/i&gt; sp.n., &lt;i&gt;R. mediterranea&lt;/i&gt; sp.n., &lt;i&gt;R. staresensis&lt;/i&gt; sp.n. and &lt;i&gt;R. coomansi&lt;/i&gt; sp.n. Some morphological adaptations of &lt;i&gt;R. bathyalis, R. spinosa&lt;/i&gt; and &lt;i&gt;R. heipi&lt;/i&gt; are discussed in relation to their small body size. The structure of the stomatal region, labial region and spicules is described in detail and probably holds for the entire genus.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Richtersia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7036

An index of biotic integrity characterizing fish populations and the ecological quality of Flandrian water bodies
Provedor de dados: 27
Autores: Belpaire, C.; Smolders, R.; Vanden Auweele, I.; Ercken, D.; Breine, J.; Van Thuyne, G.; Ollevier, F.P.
A multimetric fish Index of Biotic Integrity (IBI) was composed to assess the biotic integrity of Flandrian water bodies. As fish communities differ substantially between standing waters, running waters of the bream zone and running waters of the barbel zone, eight candidate metrics for each of these water types or zones were identified, representing three major classes of biological attributes. These are species richness and composition, fish condition and abundance, trophic composition. The metrics were tested and modified where needed. The IBI was applied throughout Flanders on 104 locations in standing waters, 500 locations in waters of the bream zone and 257 locations in waters of the barbel zone. Standing waters scored substantially different from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance Aquatic communities Body conditions Community composition Condition factor Freshwater environments Freshwater fish Inland water environment Species diversity Trophic relationships Trophic structure Water bodies Pisces [Fish] Belgium Belgium; Flanders.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4904

On the relative abundance of natural populations
Provedor de dados: 27
Autores: Heip, C.H.R.
The constant and similar statistical variability shown by various aquatic populations is postulated to be a result of competition for space. When competition for space occurs, numbers of species should form a series of abundance in which two adjacent species differ by a factor which at closest packing is 1.27. This hypothesis is tested by comparing different communities where competition for space is expected to occur (marine phytoplankton) or not (brackish water copepods).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Natural populations; Relative abundance.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3549

Observations sur la salissure dans le port d'Ostende
Provedor de dados: 27
Autores: Leloup, E.; Polk, P.
Observations on the pollution of an emerging tufnol plate over a period of 13 months (11-IV-1963/ 28-V-1964) in the harbour of Ostend: temperatures and chemistry of the environment; granulometry of the accumulated mud; inventory and evolution in the time of fouling organisms
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fouling organisms ANE; Belgium; Oostende Harbour.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289066.pdf

On the generic boundaries within the marine interstitial Latiremidae (Copepoda: Harpacticoida)
Provedor de dados: 27
Autores: Huys, R.; Kunz, H.
Character analysis of the various species of the marine interstitial family Latiremidae revealed that they should be placed in at least three genera instead of the single genus Delamarella Chappuis. The original type genus Latiremus Bozic is reinstated and comprises L. eximius only. The mediterranean genus Delamarella includes D. arenicola, D. karamani and D. galateae; the latter two probably constitute a separate taxon. D. phyllosetosa is removed from the genus Delamarella and is considered the type species of a new genus Arbutifera. The significance of characters such as the incorporation of the first pedigerous somite, the fusion of the genital somites and the antennal segmentation is stressed. Two main evolutionary lineages are recognized within the...
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7058

Contributions à l'étude des bactéries marines du littoral belge: III. Milieux de culture et ensemencements
Provedor de dados: 27
Autores: Persoone, G.
In order to detect a suitable medium for the enumeration of marine bacteria, several culture media were compared by two methods of plating: « pour plates » after Koch, and « spread plates ».The optimum period of incubation to get a maximum number of colonies on the dishes was determined.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria ANE; Belgium; Belgian Coast.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289062.pdf

Diurnal variations in CPUE and length composition of the catches in a &lt;i&gt;Nephrops&lt;/i&gt; directed fishery in the Central North Sea
Provedor de dados: 27
Autores: Redant, F.; De Clerck, R.
The report describes the Belgian &lt;i&gt;Nephrops&lt;/i&gt; directed fishery in the Central North Sea (Botney Gut-Silver Pit area) and analyzes the diurnal variations in CPUE and catch composition of several commercial &lt;i&gt;Nephrops&lt;/i&gt; trawlers operating in this area. Peak CPUE-values were generally obtained after dawn and before dusk. Some anomalies however did occur. These are discussed in relation to the natural variations in light intensity on the sea floor and the food requirements of &lt;i&gt;Nephrops&lt;/i&gt;. There was no evidence of significant changes in the length composition of &lt;i&gt;Nephros&lt;/i&gt; taken at different times of the day. The data even suggest that all size groups of &lt;i&gt;Nephros&lt;/i&gt; respond in the same...
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Circadian rhythms Length Nephrops ANE; Belgium ANE; North Sea.
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/129008.pdf

A study of the orange-red pigment from the accessory nidamental glands of the cephalopod &lt;i&gt;Sepia officinalis&lt;/i&gt; L.
Provedor de dados: 27
Autores: Decleir, W.; Richard, A.
In adult female cuttlefish an orange-red pigment concentrates in the accessory nidamental glands. This pigment is tightly bound to granules which are actively secreted by the glands. The only way to dissolve the pigment is an incubation in 40 % NaOH. Afterwards the pigment becomes readily soluble in most organic solvents. Its solubility, its behaviour in thin layer chromatography and its visible adsorption spectrum prove that the pigment is a carotenoid. It is probably formed by oxidation of a carotene. Since its properties do not correspond entirely with those of the known carotenoids, the new cephalopod pigment was called Sepiaxanthine.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids Glands Pigments Vitamin A Cephalopoda Sepia officinalis Linnaeus; 1758 [Common cuttlefish].
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3453

Sexual dimorphism in Aegisthid cephalosomic appendages (Copepoda, Harpacticoida): a reappraisal
Provedor de dados: 27
Autores: Huys, R.
The cephalosomic appendages, including the rostrum, are redescribed in the bathypelagic harpacticoid Aegisthus mucronatus Giesbrecht, 1891 (Aegisthidae). Profound sexual dimorphism was found in all cephalosomic appendages. For the first time reference is made to the presence of a mandible in the male and figures are given for the male maxillula. Distinct sexual differences are also observed in the structure of the labrum and the labium. The structure and ornamentation of the male antennula clearly shows that the Aegisthidae belong to the monophyletic group Cervinioidea, including also the Rotundiclipeidae and Cerviniidae. Brief comments are made on the nature of the first pedigerous somite, the structure of the anal somite and of the caudal rami. The...
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7053

Electron microprobe analysis of suspended matter in the Angola Basin
Provedor de dados: 27
Autores: Bernard, P.; Eisma, D.; Van Grieken, R.
Electron microprobe analysis of suspended-matter samples collected at different water depths at ten stations in the Angola Basin indicated that at each station, from top to bottom, the elementary composition of the suspended matter was very similar and differed from the composition of the suspended matter at the adjacent stations. This indicates that the downward settling of the suspended matter is much faster than the horizontal transport and mixing by the currents. Assuming that the suspended matter settles in the form of flocs, or is scavenged by settling flocs, the suspended matter can indeed reach the bottom in a shorter period than needed for the currents to cover the distance between adjacent stations. Comparison with sediment trap data from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Ocean basins; Sediment traps; Sedimentation; Suspended particulate matter.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3977

Recherches sur l'ostréiculture dans le bassin de chasse d'Ostende en 1970 et 1971
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oyster culture ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/295213.pdf

Cyatholaimidae (Nematoda) from the Canadian Pacific coast
Provedor de dados: 27
Autores: Sharma, J.; Vincx, M.
Four species of Cyatholaimidae, represented in a study of free-living marine nematodes from Vancouver, Canada, are discussed. This paper includes the description of Marylynnia hopperi sp. nov., Paracyatholaimus vancouverensis sp. nov., and Propomponema websteri sp. nov., as well as the redescription of Paracyatholaimus pugettensis Wieser and Hopper, 1967.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7007

Détermination du Cu, Pb, Cd et Zn dans l'eau de mer par voltamétrie (ASV): une première approche au problème de la spéciation des métaux lourds dans l'eau de mer
Provedor de dados: 27
Autores: Duyckaerts, G.; Gillain, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/286398.pdf

A new index measuring evenness
Provedor de dados: 27
Autores: Heip, C.H.R.
A new evenness index based on the Shannon-Wiener information &lt;i&gt;H&lt;/i&gt; is defined as (&lt;i&gt;e&lt;sup&gt;H&lt;/sup&gt;&lt;/i&gt; -1)/(&lt;i&gt;S&lt;/i&gt; -1). This index is theoretically superior to other evenness indices and has a better statistical behaviour.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3490

Mijnverzakkingen in Limburg
Provedor de dados: 27
Autores: Vansteelandt, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10250

Global change and biodiversity linkages across the sediment-water interface
Provedor de dados: 27
Autores: Smith, C.R.; Austen, M.C.; Boucher, G.; Heip, C.H.R.; Hutchings, P.A.; King, G.M.; Koike, I.; Lambshead, P.J.D.; Snelgrove, P.V.R.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6966

Electron microprobe characterization of individual aerosol particles collected by aircraft above the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Rojas, C.M.; Van Grieken, R.
About 50,000 individual aerosol particles from a total of 108 samples collected at six different altitudes above the Southern Bight of the North Sea. Have been analysed using electron probe-X-ray microanalysis. The results of hierarchical cluster analysis on each sample revealed that, for continental air masses, most of the aerosol particulate matter is characterized by high amounts of aluminosilicates, CaSO&lt;sub&gt;4&lt;/sub&gt; and Fe-rich particles. For western and marine air masses there was no change in the composition of the most abundant particle type with height. This is in connection with the rather mixed nature of the atmosphere. Non-hierarchical cluster analysis showed that the most abundant particle types in this airshed are: aluminosilicates...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2857

Geochemistry of suspended matter from the Baltic Sea: 2. Results of bulk trace metal analysis by AAS
Provedor de dados: 27
Autores: Brügmann, L.; Bernard, P.C.; Van Grieken, R.
In 1984, on a transect covering the whole Baltic Sea and parts of the adjacent North Sea, 160 water samples were taken and analysed for their concentrations of particulate and dissolved metals. In addition, the suspended materials were investigated for their elemental bulk composition.The particulate fractions represented from about 5% (Cd, Cu and Ni) to 50% (Fe and Pb) of the total (particulate plus dissolved) concentrations. For some elements (Ba, Cd, Cu, Pb and Zn), the particulate matter from the surface microlayer was enriched with respect to those suspended materials taken from 0.2 m depth. This could reflect the atmospheric input of metal-rich aerosols. In anoxic deep waters, maximum contents of Zn (6400 µg g &lt;sup&gt;-1&lt;/sup&gt;), Cu (1330 µg...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2695

Growth, production and food consumption in a fish community in the shallow subtidal of a sandy beach
Provedor de dados: 27
Autores: Cattrijsse, A.; Van Landtschoote, E.; Hamerlynck, O.
Tipo: Info:eu-repo/semantics/book
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/239513.pdf

New species of Parapinnanema (Nematoda: Chromadoridae) are described, with a discussion of the genus
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
&lt;i&gt;Parapinnanema bableti&lt;/i&gt; sp. nov. is described from marine sediments from Polynesian coral reefs. Detailed information is given on the ultrastructure of the cuticle and the buccal cavity. Similar ultrastructures are observed in &lt;i&gt;P. ritae&lt;/i&gt; sp. nov., a new species described from mangroves in Guadeloupe, and &lt;i&gt;P. alii&lt;/i&gt; (Murphy), recorded in large numbers from the south-western lagoon in New Caledonia. &lt;i&gt;P. rhipsoides&lt;/i&gt; sp. nov. is also described from the mangroves in Guadeloupe. The homogeneity of &lt;i&gt;Parapinnanema&lt;/i&gt; is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systematics; Parapinnanema alii; Parapinnanema bableti; Parapinnanema rhipsoides; Parapinnanema ritae.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7267

Poissons récolté par l'Expédition antarctique belge &lt;i&gt;Iris&lt;/i&gt; 1965
Provedor de dados: 27
Autores: Gosse, J.-P.
Tipo: Info:eu-repo/semantics/article
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289068.pdf

Nitrification in the Scheldt Estuary (Belgium and the Netherlands)
Provedor de dados: 27
Autores: Billen, G.
Nitrification and repartition of nitrifying bacteria were investigated in the autoepuration zone of the Scheldt estuary. Measurements of vertical profiles of nitrate and nitrite concentrations in the interstitial water of sediments show that nitrification in sediments is very low, implying that most of the nitrate and nitrate production occurs in the water of the river itself. Nitrifying bacteria, probably of terrestrial origin, are present throughout the water along a longitudinal profile of the estuary, with a regular decrease in numbers downstream. However, nitrification occurs only in a zone of favourable oxidation-reduction conditions, which coincides with the thermodynamic stability fields of nitrate and nitrite with respect to ammonium.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3502

Een natte attractie uit 1894: Lebon's aquarium
Provedor de dados: 27
Autores: Hostyn, N.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/276706.pdf

Catalogue des types de poissons récents de l'Institut royal des Sciences naturelles de Belgique
Provedor de dados: 27
Autores: Walschaerts, L.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Holotypes; Museum collections; Pisces [Fish]; Belgium.
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/131165.pdf

Taxonomy and phylogeny of the Archimonocelididae Meixner, 1938 (Platyhelminthes, Proseriata)
Provedor de dados: 27
Autores: Martens, P.M.; Curini-Galletti, M.C.
The family Archimonocelididae Meixner, 1938 has been revised. The family contains two subfamilies, each comprising two genera: the Archimonocelididae with &lt;i&gt;Archimonocelis&lt;/i&gt; Meixner, 1938 and &lt;i&gt;Meidiama&lt;/i&gt; Marcus, 1946, and the Calviriinae subfam. nov. with &lt;i&gt;Asilomaria&lt;/i&gt; Karling, 1966 and &lt;i&gt;Calviria&lt;/i&gt; gen. nov. with 20, 2, 1 and 3 species, respectively, 13 of which are new to science.The type species of the family is redescribed. Material of all the Archimonocelididae genera has been studied and supplementary remarks are made on some known species. The karyotype of 14 species is described.&lt;i&gt;Archimonocelis&lt;/i&gt; has a cosmopolitan distribution while &lt;i&gt;Meidiama&lt;/i&gt; is...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2719

Gebruik en misbruik van de Schelde
Provedor de dados: 27
Autores: Santbergen, L.L.P.A.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dredging Ecology Ecosystems Floods Human impact Mining Water policy Water pollution Belgium; Schelde R.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/343496.pdf

A new species of the genus &lt;i&gt;Pontocypria&lt;/i&gt; (Crustacea, Ostracoda), commensal of a lamellariid gastropod
Provedor de dados: 27
Autores: Wouters, K.
&lt;i&gt;Pontocypria coriocellae&lt;/i&gt; sp. n. is described from Papua New Guinea. The species was found inside the oral tube near the radula, of &lt;i&gt;Coriocella nigra&lt;/i&gt; Blainville, 1824 (Gastropoda, Prosobranchia, Lamellariidae). Because of its morphology and its mode of life, the new species may be considered as an occasional commensal of its gastropod hosts. It is the first &lt;i&gt;Pontocypria&lt;/i&gt; species to be found inside its host. The distribution of the genus &lt;i&gt;Pontocypria&lt;/i&gt; is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/254784.pdf

Cyanophycées des côtes du Nord de la France et de la Belgique
Provedor de dados: 27
Autores: D'hont, D.; Coppejans, E.
45 taxa belonging to the Cyanophycea have been collected from September to December 1986 in the region of Boulogne and along the Belgian coast. Ecological data are added to the morphological and anatomical descriptions based on the collected material. An identification key is given for the collected species, each of which is illustrated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyanophyceae ANE; Belgium ANE; France; North.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3241

Comparison of an artificial diet and live food as broodstock maturation diets for seabream (&lt;i&gt;Sparus aurata&lt;/i&gt;): effects on spawning and egg quality
Provedor de dados: 27
Autores: Dehasque, M.; Candreva, P.; Carrascosa, M.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sparus aurata [Gilthead].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2546

Acquisition automatique de données en mer
Provedor de dados: 27
Autores: Pichot, G.; Pollentier, A.; Picard, H.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266902.pdf

HUFA levels in eggs of wild and cultured broodstock of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;
Provedor de dados: 27
Autores: Lavens, P.; Piyatiratitivorakul, S.; Menasveta, P.; Sorgeloos, P.
The variation in egg quality, i.e. the potential of the egg to produce viable fry, is still a limiting factor in the commercial production of marine fish and crustacean fry. Better knowledge in this field would contribute to improved and especially more consistent hatchery outputs and to the development of more suitable broodstock diets. So far, objective criteria to evaluate egg quality are scarce. However, it is very likely that the nutrient composition of the eggs may be a good indicator for egg viability as it reflects the nutrient demands of the developing embryo and larva. Since (n-3) highly unsaturated fatty acids (HUFAs) have been identified as essential nutrients for the larvae of marine fish, shrimp and prawn a case study has been initiated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Brood stocks; Comparative studies; Eggs; Fatty acids; Prawn culture; Shrimp culture; Macrobrachium rosenbergii.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2876

International study on &lt;i&gt;Artemia&lt;/i&gt;: 56. Characterization of two &lt;i&gt;Artemia&lt;/i&gt; populations from Namibia and Madagascar: cytogenetics, biometry, hatching characteristics and fatty acid profiles
Provedor de dados: 27
Autores: Triantaphyllidis, G.V.; Abatzopoulos, T.J.; Miasa, E.; Sorgeloos, P.
Two parthenogenetic &lt;i&gt;Artemia&lt;/i&gt; populations from southern Africa, one from Swakopmund (Namibia) and another from Ankiembe saltworks (Madagascar) have been studied. The population of Namibia is mainly diploid (2n=42) with few tetraploid individuals (4n=84), while the one from Madagascar was found to be triploid (3n=63). No chromocenters have been observed in either of the two populations. The Namibian population has smaller cysts and nauplii compared to those of the Madagascar population. Discriminant analysis revealed significant differences in the biometry of the adults from the two populations. The two populations exhibited very good hatching characteristics. The study of fatty acid methyl esters revealed that the Namibian population...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3110

Reproduction in the brine shrimp &lt;i&gt;Artemia&lt;/i&gt;: evolutionary relevance of laboratory cross-fertility tests
Provedor de dados: 27
Autores: Gajardo, G.; Parraguéz, M.; Beardmore, J.A.; Sorgeloos, P.
The brine shrimp &lt;i&gt;Artemia&lt;/i&gt; , a typical inhabitant of hypersaline environments and characterized by a highly subdivided population structure, was used as a model to evaluate, under standardized laboratory conditions (at 65 ppt), primary reproductive traits (offspring quality and quantity) along with levels of reproductive isolation and degrees of divergence among populations. Intrapopulation experimental crosses and cross-fertility tests were evaluated in five populations (mostly &lt;i&gt;A. franciscana&lt;/i&gt;) from coastal and inland environments in Chile, and in reference samples of &lt;i&gt;A. franciscana&lt;/i&gt; (San Francisco Bay, USA) and &lt;i&gt;A. persimilis&lt;/i&gt; (Buenos Aires, Argentina), which are the species likely to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Encystment Evolution Fecundity Fertility Hybrids Reproduction Argentina Artemia Artemia franciscana Argentina; Buenos Aires Chile INE PSW; Argentina; Buenos Aires.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8062

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supra-specific taxa of Chondrichthyan fishes. Part B. Batomorphii. 1b: Order Rajiformes - Suborder Rajoidei - Family: Rajidae - Genera and Subgenera: &lt;i&gt;Bathyraja&lt;/i&gt; (with a deep-water, shallow-water and transitional morphotype), &lt;i&gt;Psammobatis, Raja (Amblyraja), Raja (Dipturus), Raja (Leucoraja), Raja (Raja), Raja (Rajella)&lt;/i&gt; (with two morphotypes), &lt;i&gt;Raja (Rioraja), Raja (Rostroraja), Raja lintea&lt;/i&gt;, and &lt;i&gt;Sympterygia&lt;/i&gt;
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.; Stehmann, M.
Part B, No. 1a of this series, comprising of the Batomorphii the first section on the Rajoidei, is continued with further rajoid taxa. The tooth morphology of representatives of eleven more genera and subgenera &lt;i&gt;Bathyraja albomaculata, Bathyraja spinicauda, Psammobatis rudis, Raja (Amblyraja) radiata, Raja (Dipturus) batis, Raja (Leucoraja) naevus, Raja (Raja) clavata, Raja (Rajella) bathyphila, Raja (Rajella) fyllae, Raja (Rioraja) agassizi, Raja (Rostroraja) alba, Raja lintea&lt;/i&gt; and &lt;i&gt;Sympterygia bonapartei&lt;/i&gt; is described and illustrated by SEM-photographs. Differential diagnoses, systematic interpretations, as well as an odontological key will be given in a forthcoming issue dealing with the last rajoid taxa.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Electron microscopy Identification keys Raja Taxonomy Teeth Bathyraja Psammobatis Raja Linnaeus; 1758 Rajidae [Skates] Sympterygia World Ocean.
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/294447.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt;: 3. The use of Coulter Counter&lt;sup&gt;®&lt;/sup&gt; equipment for the biometrical analysis of &lt;i&gt;Artemia&lt;/i&gt; cysts: methodology and mathematics
Provedor de dados: 27
Autores: Vanhaecke, P.; Steyaert, H.; Sorgeloos, P.
Geographical strains of the brine shrimp, &lt;i&gt;Artemia&lt;/i&gt; , can be characterized by the diameter of their cysts, their cyst volume and chorion thickness. The paper describes the routine procedure that has been worked out for an accurate size-analysis of &lt;i&gt;Artemia&lt;/i&gt; cyst batches using Coulter Counter&lt;sup&gt;®&lt;/sup&gt; equipment.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biometrics; Cysts; Methodology; Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3701

Karyological study of three Monocelis-species, and description of a new species from the Mediterranean, &lt;i&gt;Monocelis longistyla&lt;/i&gt; sp.n. (Monocelididae, Plathelminthes)
Provedor de dados: 27
Autores: Martens, P.M.; Curini-Galletti, M.C.
&lt;i&gt;Monocelis longistyla&lt;/i&gt; sp.n. from littoral sandy habitats of the Mediterranean is described. The karyotypes of &lt;i&gt;Monocelis fusca, M. lineata&lt;/i&gt; and &lt;i&gt;M. longistyla&lt;/i&gt; sp.n. were analysed. A basic karyotype for the genus Monocelis is postulated and its probable evolution from the basic karyotype of the family Monocelididae and within the genus is discussed. The karyotype of &lt;i&gt;M. longistyla&lt;/i&gt; seems to have evolved from the basic Monocelis karyotype by pericentric inversions. However from the analysis of the karyotype in different populations of &lt;i&gt;M. lineata&lt;/i&gt; the species appeared not to be homogeneous (European populations versus the Canadian population).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Karyology; New species; Monocelis longistyla; MED.
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/241041.pdf

Présentation du "Laboratorium voor Ekologie en Systematiek" (Vrije Universiteit Brussel)
Provedor de dados: 27
Autores: Polk, F.
The presentation of the research programme of "Laboratorium voor Ekologie en Systematiek" has to be considered an interdisciplinary programme. The communications that follow, therefore, only make sense in a more general context.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laboratories; Research programmes.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3479

Etude électrophorétique du sang d'&lt;i&gt;Euphausia superba&lt;/i&gt;
Provedor de dados: 27
Autores: Decleir, W.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Euphausia superba [Antarctic krill].
Ano: 1968
URL: http://www.vliz.be/imisdocs/publications/276637.pdf

The marine barite saturation state of the world's oceans
Provedor de dados: 27
Autores: Monnin, C.; Jeandel, C.; Cattaldo, T.; Dehairs, F.A.
This paper addresses the question of the eventual control of barium concentration in seawater by an equilibrium with barite. For this, we have used a new thermodynamic model to compute the barite saturation index of ocean waters, mainly from GEOSECS data. Our results show that equilibrium between barite and seawater is reached in a number of places: cold surface waters of the Southern Ocean, waters at intermediate depths (2000-3500 m) in the Pacific, deep waters (2000-3500 m) of the Gulf of Bengal. The only samples for which a slight barite supersaturation is found are the surface waters at GEOSECS station G89 in the Weddell Gyre. Besides these locations, the rest of the world's oceans is undersaturated, as was established by Church and Wolgemuth [Church,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aqueous solutions; Oceanography; Oceans; Saturation; Thermodynamics.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10260

Leven in troebel water: het planktonische leven in het estuariene water
Provedor de dados: 27
Autores: Muylaert, K.; Tackx, M.; Soetaert, K.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280708.pdf

Relationship between egg quality and fatty acid content of various turbot broodstocks (&lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.)
Provedor de dados: 27
Autores: Peleteiro, J.B.; Lavens, P.; Rodríguez-Ojeja, G.; Iglesias, J.
The paper presents the data relating to the spawning quality of 20 turbot females (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;L.) subjected to natural and controlled photoperiods and fed with two different types of food. A comparison is made between the data usually utilized in hatcheries for defining the spawning quality (number of viable eggs, fertilization and hatching rates, number of larvae produced) and the highly unsaturated fatty acid (HUFA) content of fertilized eggs at the two-cell stage. The results indicate that there is no correlation between the HUFA content of the eggs and any of the egg quality criteria examined. Nevertheless, significant differences (p&lt;0,05) are found between the females fed with fresh trash fish (higher 18:3n-3, 20:4n-6,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758).
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2591

Techniques for measuring feeding by mesozooplankton natural particulate matter in various environments
Provedor de dados: 27
Autores: Tackx, M.; Daro, M.H.; Billones, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7097

Description of a standard bioassay with the marine crustacean &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (M.) for the evaluation of the nutritional effectiveness of &lt;i&gt;Artemia&lt;/i&gt; nauplii and metanauplii
Provedor de dados: 27
Autores: Léger, P.; Johns, D.; Sorgeloos, P.
A standardized bioassay is described for the nutritional evaluation of &lt;i&gt;Artemia&lt;/i&gt; nauplii and metanauplii using juvenile &lt;i&gt;Mysidopsis bahia&lt;/i&gt;. This test is particularly suited to evaluate the dietary value of different strains and batches of &lt;i&gt;Artemia&lt;/i&gt; . One day starved, fed or enriched &lt;i&gt;Artemia&lt;/i&gt; metanauplii can also be tested.For this test, a homogenous population of freshly-released juveniles (less or equal to 24h-old) were produced in a mysid generator-separator. The test animals were transferred into an experimental apparatus, cultured under standard conditions and offered &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; ad libitum&lt;/i&gt;. After 12 days, data on survival, length, individual dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Mysidopsis bahia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3181

Nitrogen uptake regime and phytoplankton community structure in the Atlantic and Indian sectors of the Southern Ocean
Provedor de dados: 27
Autores: Semeneh, M.; Dehairs, F.A.; Elskens, M.; Baumann, M.E.M.; Kopczynska, E.E.; Lancelot, C.; Goeyens, L.
Phytoplankton nitrogen uptake is studied in relation to the biomass and structure of phytoplankton community in the Atlantic and Indian sectors of the Southern Ocean. Two scenarios of seasonal evolution of uptake regime and phytoplankton community structure are described. The first scenario includes the Marginal Ice Zone areas of the Weddell Sea and adjacent areas where a predominantly nitrate based, diatom dominated assemblage, thriving in a stable water column at the beginning of the season was transformed into a mainly ammonium based, flagellate dominated assemblage, towards the end of the season. The change in phytoplankton community structure was caused by selective grazing by large grazers and reduced stability of the water column and the shift in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeochemical cycle Biomass Community composition Continental shelves Ice edge Nitrogen Pelagic environment Phytoplankton Size distribution Uptake PS; Southern Ocean PSE; Antarctic Ocean.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10255

Trace element composition of Zaire suspended sediments
Provedor de dados: 27
Autores: Martin, J.-M.; Thomas, A.J.; Van Grieken, R.
The results of a preliminary study of trace element concentrations in the Zaire River and estuary suspended sediments are presented. Zaire River concentrations show a close agreement with those observed in other rivers of the world (including Magdalena and Parana). Within the mixing zone, lanthanides, Th, Sc, Hf and Rb remain nearly constant, whereas Cr, Co, Ni, Cu, Zn and Pb concentrations show much more scattering and are either constant or increasing. This last distributions differ significantly from the results of studies conducted in partially mixed estuaries.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Suspended sediments Trace elements Africa; Zaire R.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3620

Heavy metals in dolphins stranded on the French Atlantic coast
Provedor de dados: 27
Autores: Holsbeek, L.; Siebert, U.; Joiris, C.R.
Heavy metal concentrations (total and organic Hg, Ti, Cr, Cu, Zn, Cd and Pb) were determined in the muscle, liver and kidney of 36 dolphins stranded on the French Atlantic coast between 1977 and 1990: 29 common dolphins Delphinus delphis, five bottlenose dolphins Tursiops truncatus and two striped dolphins Stenella coeruleoalba. Total Hg concentration in the liver increased with age, while relative methylmercury concentration decreased, reflecting the existence of a slow demethylation process. To a lower extent, a similar pattern was observed in the kidney and muscle. No age-related increase was found for other heavy metals, although the highest levels for Cd and Cr were always found in adults. No difference in contamination could be detected between the...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6844

Two new marine podocopid species from Hansa Bay, Papua New Guinea (Crustacea: Ostracoda)
Provedor de dados: 27
Autores: Wouters, K.
Two new marine podocopid ostracod species, &lt;i&gt;Bishopina vangoethemi&lt;/i&gt; sp. nov. and &lt;i&gt;Actinocythereis laingensis&lt;/i&gt; sp. nov. found off the Northern coast of Papua New Guinea are described. The validity of the genus &lt;i&gt;Bishopina&lt;/i&gt; Bonaduce et al., 1976 is discussed, mainly in relation to the genus &lt;i&gt;Miocyprideis&lt;/i&gt; Kollmann, 1958. Furthermore, the generic characteristics of &lt;i&gt;Actinocythereis&lt;/i&gt; Puri, 1953 are discussed and are compared with those of the genus &lt;i&gt;Ponticocythereis&lt;/i&gt; McKenzie, 1976.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Podocopa ISEW; Papua New Guinea; Hansa Bay.
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/128164.pdf

Five centuries of sperm whale strandings along the Flemish coast
Provedor de dados: 27
Autores: De Smet, W.M.A.
Groups of male sperm whales sometimes visit the North Sea and may come close to its southern boundary, the Flemish coast, where moribund or dead specimens may sometimes become stranded at low tide. Subfossil finds prove that this phenomenon has existed for thousands of years, although it is rare, and that several specimens may sometimes become stranded together (as has happened in 1403, 1577 and 1937 and, more recently, in 1994). The stranding on 18 November 1994 involving three sperm whales stranded near Koksijde and one towed to Nieuwpoort has aroused huge interest among the public and has raised several questions and problems as many people interpret this stranding as being the result of pollution or other factors related to present-day human society.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Historical account Marine pollution Pollution Stranding ANE; North Sea.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=788

Sur un matériel ichthyologique des "Midra (and Saila) Shales" du Qatar (Golfe Persique)
Provedor de dados: 27
Autores: Casier, E.
The study of a collection of fish remains from the Eocene of Qatar (peninsula of the western coast in the Persian Gulf) reveals that the Midra (and Saila) Shales of that region belong to the Lutetian and not to the lower Eocene. This fish fauna proves to be very similar to the corresponding fauna of the Tethys of that age and shows more particularly an affinity with the one of the Lutetian of Egypt, as much from the systematic point of view as from the one of the climatic (tropical) and depositional (neritic) conditions.
Tipo: Info:eu-repo/semantics/article
Ano: 1971
URL: http://www.vliz.be/imisdocs/publications/294775.pdf

Fytohydrobiologisch onderzoek van oppervlaktewaters in Vlaanderen: 5. De afgesneden Scheldemeanders: het Zonneputje, de Spanjaard, de Van-Looy-put, de Bruwee (bij Gent)
Provedor de dados: 27
Autores: De Maeseneer, M.; Gogaert, C.; Coppejans, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydrobiology; Surface water; Belgium.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7695

&lt;i&gt;Reliquiaecava&lt;/i&gt;, a new genus of Coralliophilidae (Mollusca, Gastropoda)
Provedor de dados: 27
Autores: Massin, C.
A new genus &lt;i&gt;Reliquiaecava gen. n.&lt;/i&gt; is proposed for the species &lt;i&gt;Leptoconchus robillardi&lt;/i&gt; Liénard, 1870. This new genus is created because the adult and embryonic shells and the ecology of the adult of the above mentioned species are very different from those of species belonging to the genera &lt;i&gt;Leptoconchus, Coralliophila&lt;/i&gt;, and &lt;i&gt;Coralliobia&lt;/i&gt; genera to which the species was formerly assigned in the literature. Probably, the two varieties described in the original description by Liénard, represent two different species.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/303488.pdf

L'épiflore des substrats de l'étage circalittoral dans la Baie de Calvi (Corse-Méditerranée): 1. Inventaire
Provedor de dados: 27
Autores: Coppejans, E.
The author describes the biotopes seen during 55 diving-sessions (1977-'81) between 30 m and 75 m depth in the Bay of Calvi (Corsica). The phycological epiflora is shortly characterized and a list of the collected species is given, it contains 194 taxa of which 26 Chlorophyceae, 40 Phaeophyceae and 128 Rhodophyceae; 4 species are new to Corsica. This species-list is compared with those of Molinier (dredging, Cap Corse) and of Giaccone (diving, Tyrrhenean Sea).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flora Inventories MED; France; Corsica; Calvi Bay.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3379

Etude des Solanderiidae de la Baie de Hansa (Papouasie Nouvelle-Guinée) avec une révision du genre &lt;i&gt;Solanderia&lt;/i&gt; (Cnidaria, Hydrozoa)
Provedor de dados: 27
Autores: Bouillon, J.; Wouters, K.; Boero, F.
The morphology of the skeleton of the various species of the genus &lt;i&gt;Solandria&lt;/i&gt; was studied by scanning electron microscopy. This allowed the listing of synonymies, and the number of valid species was reduced from 13 to 6. Keys and a comparison table have been established for species identification.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/303517.pdf

Bescherming en beheer van het Schelde-estuarium
Provedor de dados: 27
Autores: de Haan, W.; Van den Bergh, E.; Jacobusse, C.
The ecological quality ofthe Scheldt has been strongly affected by deepening, reclaiming and polluting the water of the river. The use of national instruments of protection has unsufficiently contributed to the recovery of the estuarium. Field managers of nature-areas have succesfully taken the negative effects of the other functions as starting point into their management. The program for compensation of lost nature on behalf of the recent deepening will be evaluated next year, and adapted if necessary. The European directives for nature, water and fishery become more and more important. They play a big role in the long term vision for the Scheldt-estuarium.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecosystem management; Water policy.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280711.pdf

Controlled production of &lt;i&gt;Artemia&lt;/i&gt; cysts in batch cultures
Provedor de dados: 27
Autores: Versichele, D.; Sorgeloos, P.
The possibility to develop a routine batch culturing method for the production of cysts has been examined at laboratory scale. The influence of abiotic and biotic parameters on the mode of reproduction has been studied and the following facts have been noted: - cyclic low oxygen tensions induce haemoglobin synthesis with subsequent shift of the mode of reproduction from ovoviviparity to oviparity; - addition of ferric-EDTA stimulates haemoglobin synthesis;- a correlation exists between the color of the animals and the type of reproduction; - neither the food source nor the water salinity &lt;i&gt;per se&lt;/i&gt; control the mode of reproduction. However, cysts produced at low salinity appear to have a low hatchability. The effect on the hatchability of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Batch culture; Artemia.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3703

Meiobenthos: indicatoren voor vervuiling!
Provedor de dados: 27
Autores: Vincx, M.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/273798.pdf

The estuary as a habitat: an analysis of data on the soft-bottom macrofauna of the estuarine area of the Rivers Rhine, Meuse, and Scheldt
Provedor de dados: 27
Autores: Wolff, W.J.
During the years 1968-1970 a study has been made of the soft-bottom macrofauna (Coelenterata, Mollusca, Echiuroidea, Polychaeta, Archiannelida, Crustacea Malacostraca) of the estuaries of the rivers Rhine, Meuse, and Scheldt in the southwestern part of The Netherlands and of the adjacent part of the North Sea. 1751 samples were taken with 0.1 and 0.2 m² Van Veen grabs; in the intertidal zone several hundreds of samples were dug out, whereas further samples were taken for the analysis of interstitial polychaetes and archiannelids. Of the environmental factors especially salinity, sediment composition, current velocity, water temperature, oxygen saturation, turbidity, water pollution, exposure to waves, and the influence of ice have been investigated....
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Belgium; Zeeschelde.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6594

Trace metals in the eastern part of the North Sea: 2. Flows of Cd, Cu, Hg, Pb and Zn through the coastal area
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Gillain, G.; Ronday, F.; Dehairs, F.A.
The residual flow lines of the Belgian coast are more or less parallel to the coast except in the area where the northeasterly flowing watermass coming from the Channel encounters the southwesterly-oriented Scheldt outflow. The result is a residual hydrodynamical front with, at the northern side, a less saline estuarine watermass, and at the southern side a more saline marine watermass. From the steady-state salinity pattern, diffusion coefficients perpendicular to the residual flow were deduced; they ranged from 21 to 108 m².s&lt;sup&gt;-1&lt;/sup&gt;.The steady-state profiles of dissolved metals versus salinity indicate a dilution effect in the coastal-estuarine watermass and almost constant concentration in the marine watermass. Offshore fluxes of Cd,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal zone Trace metals ANE; North Sea.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3156

On primary production in the South Bight of the North Sea
Provedor de dados: 27
Autores: Mommaerts, J.-P.
The area of the North Sea next to the Belgian and Dutch coasts has been surveyed since January 1971. The photosynthetic capacity (potential production) of samples collected at 63 stations and 4 depths has been measured using the &lt;sup&gt;14&lt;/sup&gt;C techniques. The homogeneity of the water column was demonstrated almost everywhere. A general pattern of decrease of the potential production from the coast to the open sea was demonstrated in all seasons. Figures ranged from 3 to 30 mg C m&lt;sup&gt;-3&lt;/sup&gt; h&lt;sup&gt;-1&lt;/sup&gt;. Primary production was also determined both by calculations, using the Steemann Nielsen (1952) formula, and by &lt;i&gt;in situ&lt;/i&gt; measurements. The higher turbidity near the coast has proved to limit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Primary production ANE; North Sea; Southern Bight.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3472

Marine nematodes from Guadeloupe and other Caribbean Islands: VII. The genus &lt;i&gt;Epsilonema&lt;/i&gt; (Epsilonematidae)
Provedor de dados: 27
Autores: Decraemer, W.; Gourbault, N.
Five new species of the genus &lt;i&gt;Epsilonema&lt;/i&gt; (&lt;i&gt;E. crytamphis&lt;/i&gt; sp. n., &lt;i&gt;E. margaritatum&lt;/i&gt; sp. n., &lt;i&gt;E. meunierorum&lt;/i&gt; sp. n., &lt;i&gt;E. oodamphis&lt;/i&gt; sp. n. and &lt;i&gt;E. paralasium&lt;/i&gt; sp. n.) are described from the coralline littoral deposits of Guadeloupe, its satellite island and other Caribbean islands. Additional information is given for &lt;i&gt;E. lasium&lt;/i&gt;, and &lt;i&gt;E. mangrovense&lt;/i&gt; is redescribed.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/imisdocs/publications/303519.pdf

Comparison of three different extraction methods for Turbellaria
Provedor de dados: 27
Autores: Martens, P.M.
Three different extraction methods for Turbellaria were compared, 2 of which use living material. The first method is based on sea-water ice treatment (Uhlig-method), the second employs decantation of narcotized fauna (MgCl&lt;sub&gt;2&lt;/sub&gt;-method). The third method is the Barnett-method, performed on preserved material. Three series of 12 samples each were analysed quantitatively. Turbellaria were counted and identified to the order level. For the turbellarian population as a whole, the numbers of individuals extracted alive (Uhlig- or MgCl&lt;sub&gt;2&lt;/sub&gt;-method) was less than 50% of the number extracted from the preserved samples (Barnett-method). Differences between Uhlig-method and MgCl&lt;sub&gt;2&lt;/sub&gt;-method were not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Turbellaria [Flatworms].
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3332

&lt;i&gt;Willemsia&lt;/i&gt; gen. nov. and &lt;i&gt;Boreopontia&lt;/i&gt; Willems, 1981 revisited (Harpacticoida: Cylindropsyllidae)
Provedor de dados: 27
Autores: Huys, R.; Conroy-Dalton, S.
A new genus and species of Cylindropsyllidae (Copepoda, Harpacticoida), collected from shallow subtidal sand in the Southern Bight of the North Sea, is described and illustrated. Willemsia calceola gen. et sp. n. exhibits a unique kind of sexual dimorphism on the male P3 not observed thus far in any other harpacticoid. It is further distinguished from all known Cylindropsyllinae by the absence of an isolated midventral copulatory pore, the fades of the P2-P3 in the female and the peculiar shape and orientation of the fifth pair of legs in both sexes. Based on the sexual dimorphism of the P2 exopod and P3 endopod, it is suggested that W. calceola shares a sistergroup relationship with Stenocaris kerguelenensis Bodiou, 1977 which is transferred to a new...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7260

Baker's yeast as a potential substitute for live algae in aquaculture diets: &lt;i&gt;Artemia&lt;/i&gt; as a case study
Provedor de dados: 27
Autores: Coutteau, P.; Lavens, P.; Sorgeloos, P.
In this study baker's yeast was evaluated as a substitute for live &lt;i&gt;Dunaliella tertiolecta&lt;/i&gt; algae in the culture of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; . Consumption of fresh baker's yeast resulted in poor growth and survival of brine shrimp. However, the nutritional value of the yeast significantly improved after complete removal of the yeast cell wall by enzymatic treatment. Baker's yeast was also made digestible for &lt;i&gt;Artemia&lt;/i&gt; by simple chemical treatment which did not reduce rigidity of the yeast cell. The external mannoprotein layer of the yeast cell wall is probably the major barrier to digestion by &lt;i&gt;Artemia&lt;/i&gt; . Chemically treated baker's yeast offers promising possibilities as a substitute for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets; Yeasts; Artemia; Saccharomyces cerevisiae.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3064

Inferring a classification of the Adenophorea (Nematoda) from nucleotide sequences of the D3 expansion segment (26/28s rDNA)
Provedor de dados: 27
Autores: Litvaitis, M.K.; Bates, J.W.; Hope, W.D.; Moens, T.
Nucleotide sequences of the D3 expansion segment of the 28S rDNA gene were used to reconstruct evolutionary relationships within the Adenophorea. Neighbor-joining and parsimony analyses of representatives of most major taxa revealed a paraphyletic Adenophorea (p = 0.0005). Within Adenophorea, the Enoplia, Enoplida, and Enoplina were paraphyletic (p = 0.0024, 0.0014, and 0.0120, respectively). A major division was evident within the Enoplida, with one lineage consisting of a basal Thoracostomopsidae and Enoplidae, and a second lineage consisting of Oncholaimidae and Encheliididae. Tripyloidina clustered close to the basal enoplid branch and formed a monophyletic taxon. Although appearing as paraphyletic in the maximum-parsimony and neighbor-joining trees,...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7348

A standard experimental diet for the study of fatty acid requirements of weaning and first ongrowing stages of European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt; L.): selection of the basal diet
Provedor de dados: 27
Autores: Coutteau, P.; Van Stappen, G.; Sorgeloos, P.
A standard experimental diet was developed to study lipid nutrition in marine fish larvae during weaning and first ongrowing. Basal diets were prepared by extrusion-cooking, crumbling of the pellets, and sieving to obtain particles in the size ranges 150-300 µm and 300-500 µm. Three protein sources in the extruded basal diet were evaluated: (1) micronized cod protein granulate (COD); (2) a mixture of casein, gelatin, and albumin (CGA); (3) a mixture of cod fish meal, whey protein, soybean protein concentrate, albumin, hemoglobin meal, and wheat gluten (MIX). A variable lipid fraction was added to the extruded nucleus by coating the particles with an emulsion, coconut oil (COCO), or fish oil emulsion (FO), in a fluidized bed granulator. European sea bass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2541

Caridean shrimps in the food of demersal fish off the Belgian coast: 1. Gadiformes
Provedor de dados: 27
Autores: Redant, F.
The report provides information on the importance of Caridean shrimps in the food of juvenile &lt;i&gt;Merlangius merlangus&lt;/i&gt; (whiting), &lt;i&gt;Trisopterus luscus&lt;/i&gt; (bib), juvenile &lt;i&gt;Gadus morhua&lt;/i&gt; (cod) and &lt;i&gt;Ciliata mustela&lt;/i&gt; (five-bearded rockling) in the Belgian coastal waters, as well as some biometric data related to stomach content and composition (stomach weight, weight of Caridean shrimps per stomach, number of Caridean shrimps per stomach in relation to predator size). The results clearly demonstrate the importance of Caridean shrimps, especially &lt;i&gt;Crangon crangon&lt;/i&gt;, as a food source for Gadoid fish species in inshore waters.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Demersal fisheries Food preferences Caridea [Shrimps] Gadiformes ANE; Belgium; Belgian Coast.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3386

State of the art in marine fish larviculture
Provedor de dados: 27
Autores: Sorgeloos, P.
Much progress has been made in the last decades in the industrial farming of several species of marine fish. The pioneering country has been Japan with the red seabream, however, in the last decade Europe made quick progress with seabass and gilthead seabream. Today Japan is still the biggest producer of marine fish fry with about 200 million fry per year, 70% of the production consisting of red seabream and Japanese flounder. Without any doubt, the most significant progress achieved during the last decade has been the result of improved nutrition, more particularly through the manipulation of the fatty acid profile of the live preys &lt;i&gt;Brachionus&lt;/i&gt; and &lt;i&gt;Artemia&lt;/i&gt; by application of enrichment or boosting techniques with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Brachionus.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2669

A new artificial diet for the early weaning of seabass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) larvae
Provedor de dados: 27
Autores: Devresse, B.; Candreva, P.; Léger, P.; Sorgeloos, P.
The weaning of marine fish larvae is a critical step in larval rearing. The successful transition from live food to an artificial feed depends among others on the quality of the dry feed used (e.g. freshness of ingredients, digestibility, quality of the formulation) and the larvae themselves (e.g. age, behaviour towards artificial diets, development of the digestive tract, efficiency of certain metabolic pathways). The present study shows the results obtained with a new artificial diet formulated for the weaning phase of marine fish larvae (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) in commercial hatcheries.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Feed composition; Fish culture; Fish larvae; Hatcheries; Dicentrarchus labrax [Bass].
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262322.pdf

Potentials of converting microalgae into brine shrimp &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Sorgeloos, P.
High densities of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; can be cultured in flow-through systems using the effluent of microalgae cultures as a combined source of culture medium and food. It has been proven at the "St. Croix Artificial Upwelling Mariculture Project" that in comparison with the fast growing clam &lt;i&gt;Tapes japonica&lt;/i&gt;, brine shrimp assure a much more efficient conversion of plant into animal biomass. It appears from the given examples that microalgae conversion into brine shrimp &lt;i&gt;Artemia&lt;/i&gt; offers efficient and economic applications.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal culture; Artemia.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3280

Information-related courses in a new international study programme in ecological marine management
Provedor de dados: 27
Autores: Nieuwenhuysen, P.
This contribution focuses on some courses that are related to information, in a specialized study programme in ecological marine management, named ECOMAMA. The ECOMAMA postgraduate specialized study programme is organized mainly in the faculty of science of the Vrije Universiteit Brussel (V.U.B.) in Belgium. It started in 1997. It is international in the sense that many students come from developing countries besides a few students from Belgium. It is an inter-university programme in the sense that the professors come from many universities and scientific institutes in Belgium. Normally it takes two years to obtain the degree.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conferences; Environment management; Information centres; Information handling; Information services; Libraries; Resource management.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=405

Effect of algal ration on feeding and growth of juvenile manila clam &lt;i&gt;Tapes philippinarum&lt;/i&gt; (Adams and Reeve)
Provedor de dados: 27
Autores: Coutteau, P.; Curé, K.; Sorgeloos, P.
Juvenile &lt;i&gt;Tapes philippinarum&lt;/i&gt; (Adams and Reeve) were reared for three weeks on different rations of &lt;i&gt;Chaetoceros neogracile&lt;/i&gt; which were either centrifuged and stored or fed together with the culture medium. Algal rations were adjusted daily in order to feed constant weight-specific daily rations. Growth of &lt;i&gt;T. philippinarum&lt;/i&gt; fed the concentrate of &lt;i&gt;C. neogracile&lt;/i&gt; was maximal at a daily ration of 1% (algal dry weight per clam live weight). &lt;i&gt;T. philippinarum&lt;/i&gt; fed single or mixed diets of &lt;i&gt;C. neogracile&lt;/i&gt; and &lt;i&gt;Isochrysis&lt;/i&gt; sp. (clone T-Iso) directly from the algal cultures, maximized growth at a ration of 1,3% day &lt;sup&gt;-1&lt;/sup&gt;....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tapes philippinarum (Adams &amp; Reeve; 1850).
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/2559.pdf

Pseudo-hormonen, fictie of realiteit?
Provedor de dados: 27
Autores: Dhooge, W.; D'haese, I.; Versonnen, B.; Schellekens, P.; Comhaire, F.; Verstraete, W.; Janssen, C.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7493

Gedetailleerde seismo- en sequentiestratigrafische studie van de Crary Fan, zuidoostelijke Weddell Zee, Antarctica
Provedor de dados: 27
Autores: Moons, A.-M.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/226616.pdf

Live feeds in aquaculture
Provedor de dados: 27
Autores: Dhert, Ph.; Sorgeloos, P.
Over the past two decades intensive larviculture of several fish and shellfish species has expanded into a multimillion dollar industry. Although much progress has been made in identifying the dietary requirements of the larvae of various aquaculture species, the mass culture of their early larval stages still requires the use of live feeds. Selected either through trial and error approaches or because of their convenience in mass production and use, hatcheries are relying today on three groups of live feed, i.e. various species of microscopic algae, the rotifer &lt;i&gt;Brachionus&lt;/i&gt; and the anostracan brine shrimp &lt;i&gt;Artemia&lt;/i&gt; .Various species of microalgae are used in feeding mollusc and shrimp larvae and/or in greenwater fish...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2558

Influence of epibenthos on meiobenthos of the &lt;i&gt;Ceriops tagal&lt;/i&gt; mangrove sediment at Gazi Bay, Kenya
Provedor de dados: 27
Autores: Schrijvers, J.; Okondo, J.; Steyaert, M.; Vincx, M.
A cage experiment was used to exclude the epibenthos from the &lt;i&gt;Ceriops tagal&lt;/i&gt; mangrove sediment at Gazi Bay, Kenya. This made it possible to study interactions with the meiobenthos (in terms of predation, food competition and food enhancement). The density of the meiobenthic taxa and nematode genera and a broad range of abiotic variables were followed in a depth profile over 1 yr of caging. There was a significant exclusion effect in the upper sediment layer for total meiofauna, nematodes and oligochaetes during the first 2 mo and for copepods during the last 6 mo of caging. The density of the most common predatory and microalgae-feeding nematodes in particular tended to increase in the surface layers as well as the percentage of muddy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Mangroves Meiobenthos Sediments Ceriops tagal ISW; Kenya; Gazi Bay.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2604

Seabirds recorded in the northern North Sea in July: the ecological implications of their distribution
Provedor de dados: 27
Autores: Joiris, C.
During a trip made on board the German research vessel &lt;i&gt;Anton Dohrn&lt;/i&gt; from 1 to 18 July 1975 in the northern North Sea, I had the opportunity of recording seabirds. Observations were made from the bridge for one-hour or half-hour periods (in quarter-hour fractions). Since there was no fishing activity on board, the presence of the ship probably did not modify much the distribution of seabirds. The position of the recording stations is presented in Fig. 1. The ship is either stationary or moving at a speed of about 12 knots.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution Ecology Marine birds Summer ANE; North Sea.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3586

The use of yeast as single-cell protein in aquacultural diets
Provedor de dados: 27
Autores: Coutteau, P.; Lavens, P.
Aquaculture is becoming more and more an industrial practice. However, feed cost, which may mount up to around 30% of the total operating costs still appears to be one of the major constraints for further expansion of aquaculture. Due to the relatively inexpensive mass-production of yeasts, serious efforts have been made to evaluate the incorporation of these Single-Cell Proteins in aquaculture diets. The aim of this communication is to review the most important results obtained with yeast diets in the different fields of aquaculture. Several authors have reported on the utilization of yeast in fish feeds. Successful incorporation of yeast into fish diets allows replacement of 25-50% of the fish meal component. Because of their small particle size yeasts...
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3008

Concentration and microbiological utilization of small organic molecules in the Scheldt estuary, the Belgian coastal zone of the North Sea and the English Channel
Provedor de dados: 27
Autores: Billen, G.; Joiris, C.R.; Wijnant, J.; Gillain, G.
Concentrations and utilization rates of alanine, aspartate, lysine, glucose, glycollic, acetic and lactic acids have been determined on 6 occasions at least, during a full seasonal cycle in the water column of 3 stations (Scheldt estuary, coastal North Sea and English Channel) with greatly differing biological characteristics. No significant differences in substrate concentration could be detected between the 3 stations, although the rate of utilization of all substrates differed greatly, decreasing in the order estuarine &gt; coastal &gt; open sea environment. This apparent paradox is explained by aid of a simple model showing that the steady state concentration of a particular substrate is independent of its rate of production (and thus of consumption)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organic compounds ANE; Belgium; Belgian Coast ANE; English Channel Belgium; Zeeschelde.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6912

Soft sediment meiofauna community responses to environmental pollution gradients in the German Bight and at a drilling site off the Dutch coast
Provedor de dados: 27
Autores: Gee, J.M.; Austen, M.C.; De Smet, G.; Ferraro, T.; McEvoy, A.; Moore, S.; Van Gansbeke, D.; Vincx, M.; Warwick, R.M.
During the Bremerhaven Workshop, the meiofaunal communities along 2 supposed North Sea pollution gradients, one at a drilling site off the Dutch coast and the other across the German Bight, were analysed by a variety of univariate and multivariate techniques and the changes on community structure related to a suite of measured environmental variables. At the drilling site the only evidence of change in community structure was a slight reduction in the abundance of nematodes in the deeper parts of the sediment (2 to 10 cm) close to the drilling site. Otherwise, there were no significant differences between sites using any other measure of community structure. It is concluded that sufficient time had elapsed since the cessation of drilling activity for a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drilling Environmental impact Marine pollution Meiobenthos ANE; Germany; German Bight.
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/273315.pdf

Redescription and ontogenetic study of &lt;i&gt;Desmodora schulzi&lt;/i&gt; Gerlach 1950
Provedor de dados: 27
Autores: Vincx, M.
&lt;i&gt;Desmodora schulzi&lt;/i&gt; Gerlach. 1950 is redescribed and reestablished as a valid species. The morphology of the four juvenile stages is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ontogeny Taxonomy Desmodora schulzi Gerlach; 1950.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/276438.pdf

Effect of algal ration and substitution of algae by manipulated yeast diets on the growth of juvenile &lt;i&gt;Mercenaria mercenaria&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Hadley, N.H.; Manzi, J.J.; Sorgeloos, P.
The development of a cost-effective algal substitute would greatly reduce the operating costs of bivalve hatcheries. Previous work has resulted in the development of a yeast diet with improved digestibility and nutritional composition. The use of this yeast product as a partial algal substitute for the culture of juvenile hard clams &lt;i&gt;Mercenaria mercenaria&lt;/i&gt; was investigated in a series of growth experiments. Juveniles of the hard clam (1 mg live weight) were batch cultured in a 1 8 1 recirculating system for 2 or 3 weeks. The optimal weight-specific daily ration for a mixture (50/50 on dry weight basis) of &lt;i&gt;Isochrysis galbana&lt;/i&gt; (clone T-Iso) and &lt;i&gt;Chaetoceros gracilis&lt;/i&gt; was found to be 1.5 to 2% dry weight per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae Aquaculture techniques Clam culture Diets Food organisms Growth Yeasts Mercenaria mercenaria (Linnaeus; 1758) [Northern quahog].
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2567

Turbellaria from Somalia: 3. Lecithoepitheliata and Typhloplanoida
Provedor de dados: 27
Autores: Schockaert, E.R.; Martens, P.M.
In this third contribution on marine Microturbellaria from Somalian littoral habitats, one new species of the Lecithoepitheliata, &lt;i&gt;Gnosonesima tropicalis&lt;/i&gt; n. sp. and two new species of the Tyhloplanoida, &lt;i&gt;Lenopharynx tubatus&lt;/i&gt; n. sp. and &lt;i&gt;Brinkmanniella microps&lt;/i&gt; n. sp. Are described. The occurrence of &lt;i&gt;Ptychoptera scutilifera&lt;/i&gt; Ehlers &amp; Ax, 1974 with some additional notes on its anatomy, &lt;i&gt;Microvahine corallicola&lt;/i&gt; Karling et al., 1972 and of a representative of the Kytorhynchidae is mentioned as well.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology New species Taxonomy Brinkmanniella microps Gnosonesima tropicalis Lenopharynx tubatus ISW; Somali Dem. Rep.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3210

Determination of low-&lt;i&gt;Z&lt;/i&gt; elements in individual environmental particles using windowless EPMA
Provedor de dados: 27
Autores: Ro, C.-U.; Osán, J.; Van Grieken, R.
The determination of low-Z elements such as carbon, nitrogen, and oxygen in atmospheric aerosol particles is of interest in studying environmental pollution. Conventional electron probe microanalysis technique has a limitation for the determination of the low-Z elements, mainly because the Be window in an energy-dispersive X-ray (EDX) detector hinders the detection of characteristic X-rays from light elements. The feasibility of low-Z element determination in individual particles using a windowless EDX detector is investigated. To develop a method capable of identifying chemical species of individual particles, both the matrix and the geometric effects of particles have to be evaluated. X-rays of low-Z elements generated by an electron beam are so soft...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4028

Recyclage van biodegradeerbare afvalstoffen door aquatische voedselketens: wetenschappelijk eindverslag
Provedor de dados: 27
Autores: Persoone, G.
Tipo: Info:eu-repo/semantics/book
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/314902.pdf

The effect of supplemental ascorbic acid in enriched live food for &lt;i&gt;Clarias gariepinus&lt;/i&gt; larvae at startfeeding
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Verreth, J.; Ollevier, F.P.; Nelis, H.; De Leenheer, A.P.; Storch, V.; Sorgeloos, P.
The effect of three dietary ascorbic acid (AA) concentrations, each applied via two feed types, on production characteristics and physiological condition of African catfish (&lt;i&gt;Clarius gariepinus&lt;/i&gt;) larvae has been assessed in two 10-day culture trials. Three treatments received only &lt;i&gt;Artemia&lt;/i&gt; nauplii enriched with an experimental emulsion containing 0, 10 or 20% ascorbyl palmitate (AP) and yielding 530, 1200 and 1600 µg AA g&lt;sup&gt;-1&lt;/sup&gt; DW &lt;i&gt;Artemia&lt;/i&gt; , respectively; the other three treatments were fed the same &lt;i&gt;Artemia&lt;/i&gt; diets which were partially substituted by an artificial diet containing no vitamin C (ratio 20:80). No differences in survival could be observed: however, from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish larvae; Food organisms; Vitamin C; Clarias gariepinus.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2963

Four new stygobitic cirolanids (Crustacea: Isopoda) from the Caribbean: with remarks on intergeneric limits in some cirolanids
Provedor de dados: 27
Autores: Botosaneanu, L.; Iliffe, T.M.
Four new stygobitic and troglomorphic cirolanids are described from various parts of the Caribbean. &lt;i&gt;Cirolana (C.) troglexuma&lt;/i&gt; n. sp. is described from a cave on one of the Exuma Cays, Bahamas; two subgenera are recognized in g.&lt;i&gt;Cirolana&lt;/i&gt;: sg. &lt;i&gt;Cirolana&lt;/i&gt; including &lt;i&gt;troglexuma&lt;/i&gt; as only presently know stygobitic species, and sg. &lt;i&gt;Anopsilana&lt;/i&gt; equally well represented by subterranean and by epigean species. &lt;i&gt;Haptolana bowmani&lt;/i&gt; n. sp. and &lt;i&gt;H. belizana&lt;/i&gt; n. sp. inhabit caves of Yucatan and Belize, respectively; interestingly they are both abundantly different from the Cuban species of this stygobenthic genus, showing more similarity with the...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303533.pdf

Highly unsaturated fatty acid requirements of &lt;i&gt;Penaeus monodon&lt;/i&gt; postlarvae: an experimental approach based on &lt;i&gt;Artemia&lt;/i&gt; enrichment
Provedor de dados: 27
Autores: Rees, J.F.; Curé, K.; Piyatiratitivorakul, S.; Sorgeloos, P.; Menasveta, P.
&lt;i&gt;Penaeus monodon&lt;/i&gt; postlarvae (PL-5 to PL-15) were fed 5 different diets consisting of enriched &lt;i&gt;Artemia nauplii&lt;/i&gt; with a specific n-3 HUFA content. Although the postlarvae grew well on an &lt;i&gt;Artemia&lt;/i&gt; diet with low HUFA-content, the ability of PL-10 to endure osmotic stress remained low. Feeding &lt;i&gt;Artemia&lt;/i&gt; enriched with medium levels of n-3 HUFA (sum n-3 HUFA =12,55mg/g DW) for 5 days considerably enhanced the resistance of PL-10 to osmotic stress and their survival recorded 5 days later. However, very high dietary levels of n-3 HUFA (31,2 mg/g DW) did not have any growth promoting effect, thus suggesting that an excessive supply of n-3 may not be beneficial to the shrimp. Our data demonstrate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Penaeus monodon [giant tiger prawn].
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2665

&lt;i&gt;Fosliella farinosa&lt;/i&gt; (Lamouroux) Howe var. &lt;i&gt;chalicodictya&lt;/i&gt; Taylor (Rhodophyceae-Cryptonemiales) et &lt;i&gt;Lophosiphonia scopulorum&lt;/i&gt; (Harvey) Womersley (Rhodophyceae-Ceramiales) récoltées en Méditerranée nord-occidentale
Provedor de dados: 27
Autores: Coppejans, E.
&lt;i&gt;Fosliella farinosa&lt;/i&gt; (Lamour.) Howe var. &lt;i&gt;chalicodictya&lt;/i&gt; Taylor has been described in 1939 after material from the Caribbean Sea. It has never been mentioned since the &lt;i&gt;descriptio princeps&lt;/i&gt;. We found it sometimes while assorting phytosociological relevés from Banyuls and Port-Cros (France). &lt;i&gt;Lophosiphonia scopulorum&lt;/i&gt; (Harv.) Womersl., described from Australia, has recently been mentioned by Ardre (1970) along the Portuguese coasts. We noted this species at Banyuls. Both taxa are new for the Mediterranean Sea; the first one is new for the French algological flora.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ceramiales; Fosliella farinosa (Lamouroux) Howe var. Chalicodictya Taylor; Rhodophyceae; Caribbean Region; France; Portugal.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3546

Growth, feeding, production, and consumption in 0-group bib (&lt;i&gt;Trisopterus luscus&lt;/i&gt; L.) and whiting (&lt;i&gt;Merlangius merlangus&lt;/i&gt; L.) in a shallow coastal area of the south-west Netherlands
Provedor de dados: 27
Autores: Hamerlynck, O.; Hostens, K.
In 1988 juvenile bib (&lt;i&gt;Trisopterus luscus&lt;/i&gt;) and whiting (&lt;i&gt;Merlangius merlangus&lt;/i&gt;) were studied in a shallow coastal area by monthly sampling with fine-meshed nets. 0-group fish of both species are first caught in May. By the end of the first growth season bib reached about 150mm SL (standard length), whiting about 170mm SL. Maximal densities were recorded in June and by the end of the year most fish had left the area. The instantaneous mortality is estimated at 0.008 day&lt;sup&gt;-1&lt;/sup&gt; (0.77% day&lt;sup&gt;-1&lt;/sup&gt; for bib and 0.76% day&lt;sup&gt;-1&lt;/sup&gt; for whiting) for both species. In May both species depended almost exclusively on calanoid copepods. In June and July mysids and amphipods were the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets Feeding Food conversion Growth Juveniles Marine fish Nursery grounds Predation Merlangius merlangus [Whiting] Trisopterus luscus (Linnaeus; 1758) ANE; Netherlands.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2694

Wave modelling in the PROMISE project
Provedor de dados: 27
Autores: Monbaliu, J.; Hargreaves, J.C.; Carretero, J.-C.; Gerritsen, H.; Flather, R.
The primary objective of the EC-MAST III project PROMISE (Pre-Operational Modelling In the Seas of Europe) is to develop a framework to optimize the application of existing pre-operational dynamical models of the North Sea in order to quantify the rates and scales of the exchange of sediments between the coast and the near-shore zone. This framework should also be applicable to other coastal areas and for broader management applications. One of the components of this framework is the development and the dissemination of a spectra! wave model capable of dealing with shallow water conditions and with the interaction between tide and waves. At the beginning of the project, it was opted to improve the capabilities of the WAM-Cycle 4 model, a model which is...
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2936

A simple semi flow-through culture technique for the controlled super-intensive production of &lt;i&gt;Artemia&lt;/i&gt; juveniles and adults
Provedor de dados: 27
Autores: Dhert, P.; Bombeo, R.; Lavens, P.; Sorgeloos, P.
A simple semi flow-through &lt;i&gt;Artemia&lt;/i&gt; culture unit is described for possible integration in marine fish and shellfish hatcheries as a source of a cheap nursery diet. The system does not require the use of feeding pumps and involves minimal care. Food preparation and addition to the feeding tank is reduced to one or two manipulations per day during the meta-nauplius stages (day 1-3) and the juvenile stages (day 4-14), respectively. Biomass productions are superior to those reported to those for stagnant culture systems and are comparable to those demonstrated for flow-through culture units. This simple rearing technique offers the possibility of producing brine shrimp populations with a uniform size. Furthermore, by varying the feeding...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2755

Future observational and modelling needs identified on the basis of the existing shelf data
Provedor de dados: 27
Autores: Berlamont, J.; Radach, G.; Becker, G.; Colijn, F.; Gekeler, J.; Laane, R.W.P.M.; Monbaliu, J.; Prandle, D.; Sündermann, J.; Van Raaphorst, W.; Yu, C.S.
NOWESP has compiled a vast quantity of existing data from the North-West European Shelf. Such a focused task is without precedence. It is now highly recommended that one, or a few national and international data centres or agencies should be chosen and properly supported by the EU, where all available observational data, including the NOWESP data, are collected, stored, regularly updated by the providers of the data, and made available to the researchers. International agreement must be reached on the quality control procedures and quality standards for data to be stored in these data bases. Proper arrangements should be made to preserve the economic value of the data for their "owners" without compromising use of the data by researchers or duplicating...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/276638.pdf

The population dynamics of &lt;i&gt;Lernaeocera lusci&lt;/i&gt; and &lt;i&gt;L. branchialis&lt;/i&gt; on intermediate hosts
Provedor de dados: 27
Autores: Van Damme, P.A.; Ollevier, F.P.
The metapopulation dynamics of &lt;i&gt;Lernaeocera lusci&lt;/i&gt; and &lt;i&gt;L. branchialis&lt;/i&gt; on sole &lt;i&gt;Solea solea&lt;/i&gt; and flounder &lt;i&gt;Pleuronectes flesus&lt;/i&gt; were studied in the Dutch coastal area. Both fish species harboured large numbers of parasites when they arrived in the coastal area in the spring. Between April and June all parasites detached from the intermediate hosts and infected the definitive hosts (0+ whiting &lt;i&gt;Merlangius merlangus&lt;/i&gt; for &lt;i&gt;L. branchialis&lt;/i&gt;, and possibly sand goby &lt;i&gt;Pomatoschistus minutus&lt;/i&gt; for &lt;i&gt;L. lusci&lt;/i&gt;). Thereafter, flounder remained almost parasite-free until autumn. This suggests that &lt;i&gt;L. branchialis&lt;/i&gt; has...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parasites Population dynamics Lernaeocera branchialis Lernaeocera lusci ANE; North Sea.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3143

Variation of lipid and fatty acid content in larval and early juvenile stages of the hard clam &lt;i&gt;Mercenaria mercenaria&lt;/i&gt; L. in a commercial hatchery
Provedor de dados: 27
Autores: Caers, M.; Coutteau, P.; Moore, W.; Manzi, J.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mercenaria mercenaria (Linnaeus; 1758) [Northern quahog].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2530

Kennen Sie die Lebensgeschichte von &lt;i&gt;Artemia salina&lt;/i&gt;?
Provedor de dados: 27
Autores: Sorgeloos, P.; Persoone, G.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life history; Artemia salina.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3437

Seismic tracking of geological hazards related to clay tectonics in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Henriet, J.-P.; D'Olier, B.; Auffret, J.P.; Andersen, H.L.
A joint seismic exploration programme, carried out in recent years by Belgian, British, French and Danish university laboratories in the southern North Sea and Schelde estuary, has revealed various styles of clay tectonics in Eocene and Oligocene deposits. In this paper particular attention is drawn on the remarkable deformation features observed in the Ieper or London clay, which forms the subsoil of the major part of the Thames estuary and the Belgian shelf sector. Those clay structures have eluded many previous investigations, mainly due to a lack of interfaces with large reflection coefficients. When however a seismic source is adequately tuned, the sum of reflection responses from the many subtle interfaces within the clay sequence may construct an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geological hazards Seismic exploration Tectonics ANE; North Sea; Southern Bight.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3418

… en de verborgen dierentuin op de slikken en platen van het Schelde-estuarium
Provedor de dados: 27
Autores: Hamels, I.; Vyverman, W.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280706.pdf

The population dynamics of the parasitic copepode &lt;i&gt;Lernaeocera lusci&lt;/i&gt; (Bassett-Smith, 1896) on its definitive host
Provedor de dados: 27
Autores: Van Damme, P.A.; Hamerlynck, O.; Ollevier, F.P.
The mesoparasitic copepod &lt;i&gt;Lernaeocera lusci&lt;/i&gt; (Bassett-Smith, 1896) was recovered from first-year bib (&lt;i&gt;Trisopterus luscus&lt;/i&gt; L.) in the Voordelta (Southern Bight of the North Sea) from May until December 1989. Analysis of the seasonal abundance and of the population structure showed that transmission of infective stages to bib mainly occurred from June to September. From September to December the overall prevalence fluctuated around 70%. Maximum parasite population size (47/10&lt;sup&gt;4&lt;/sup&gt;m²) and the highest total egg number were recorded in September and October, respectively. It was found that total parasite mortality was significantly influenced by mortality of hosts carrying parasites. Natural mortality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parasites Population dynamics Lernaeocera lusci ANE; North Sea.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3115

Growth and respiration of &lt;i&gt;Cyprideis torosa&lt;/i&gt; Jones 1850 (Crustacea Ostracoda)
Provedor de dados: 27
Autores: Herman, P.M.J.; Heip, C.H.R.
The ostracod &lt;i&gt;Cyprideis torosa&lt;/i&gt; Jones 1850 is a dominant species in brackish water habitats. To assess its importance, growth and respiration were measured. The shells form an increasing part of total weight as the animals grow but there is no correlation between shell weight and soft parts weight in the adults, indicating that tissue growth is a continuous process in these ostracods. Respiration was measured at 20 °C. The slope of the log-log regression of respiration on dry weight was 0.746, showing that &lt;i&gt;Cyprideis torosa&lt;/i&gt; follows the general rule for this relationship. The respiration rate per unit biomass was 0.246 nl O&lt;sub&gt;2&lt;/sub&gt; µg&lt;sup&gt;-1&lt;/sup&gt; h&lt;sup&gt;-1&lt;/sup&gt;, which is low but...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth; Respiration; Cyprideis torosa.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3382

Lithostratigraphy of the Egem member (Ypresian) south-east of the Gent agglomeration (Belgium)
Provedor de dados: 27
Autores: Bolle, I.; Jacobs, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2540

Microalgal wastewater treatment-systems: potentials and limits
Provedor de dados: 27
Autores: De Pauw, N.; Van Vaerenbergh, E.
Algae can play a positive role in wastewater treatment by recycling of nutrients, by taking up carbon, nitrogen and phosphorus, by reducing the nutrient load through stripping and precipitation, by producing oxygen for bacterial decomposition of organic matter, by eliminating pathogenic bacteria through bactericide action, and last but not least by solving odor problems. If sufficient insolation, and space are available, intensive algal wastewater treatment-systems proved to be valuable and promising alternatives to conventional treatment systems based on activated sludge or trickling filters. The various technologies developed for algal wastewater treatment are commented in this review. They include simple stabilization-oxidation ponds, as well as more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Waste water; Wastewater treatment.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3350

Résultats d'une étude d'aire minima de peuplements algaux photophiles sur substrat rocheux à Port-Cros et à Banyuls (France)
Provedor de dados: 27
Autores: Dhondt, F.; Coppejans, E.
The minimal area of photophilous algal vegetations at Port Cros and Banyuls (France) has been determined by different methods. A comparison is made between the results. The minimal area of the studied vegetation-type is very small : 100-250 cm².
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/imisdocs/publications/281136.pdf

Atmosferische fluxen van zware metalen naar de Noordzee
Provedor de dados: 27
Autores: Otten, P.; Injuk, J.; Rojas, C.; Van Grieken, R.
The North Sea is being under loaded in many ways, both by organic and anorganic pollutants. Transport over rivers is the most evident way. Direct emission along the coastline and dumping of toxic materials by vessels are another two causes of pollution. Exploitation of oil and gas platforms also lead to operational emission of certain noxious substances. “Last but not least” a part of the pollutants also reach the North Sea through the atmosphere.This article specifically concerns the latter facet of North Sea Pollution. Both gaseous and particular material is being emitted in the atmosphere through incineration and other polluting processes. After physical dispersion and chemical transformation, these pollutants can end up in the sea through deposit...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2850

Modèles d'un estuaire partiellement stratifié: application à la circulation résiduelle et à l'étude de l'envasement dans l'Escaut
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Ronday, F.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/314587.pdf

Contribution à la connaissance du phytoplankton de l'Atlantique nord-est et de la Mer du Nord
Provedor de dados: 27
Autores: Louis, A.; Clarysse, R.
This study shows that the principal ecological factors influencing the studied area are light, determined by very unequal day lengths, the wind, provoking a fairly homogenically mixed layer of microscopic organisms, and water depth, which in correlation with the proximity of the coast line determined the nutrient salinity concentration. The floral study allowed the determination of algal concentration in the different zones during different periods of the year, and also the quantitative and qualitative photosynthetic activity fluctuations of several florules. The study also resulted in a zonal and chronological delimitation of a large number of species of the studied area. The degressive lists, based on the mean algal frequency, showed the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytoplankton ANE; Belgium; Zwin ANE; North Sea Belgium; Het Zwin natuurreservaat.
Ano: 1971
URL: http://www.vliz.be/imisdocs/publications/341463.pdf

Résultat des expériences de culture d'huîtres dans le Bassin de Chasse d'Ostende de 1936 à 1938
Provedor de dados: 27
Autores: Halewyck, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oyster culture Ostrea edulis Linnaeus; 1758 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1939
URL: http://www.vliz.be/imisdocs/publications/333908.pdf

Geochemistry of suspended matter from the Baltic Sea: 1. Results of individual particle characterization by automated electron microprobe
Provedor de dados: 27
Autores: Bernard, P.; Van Grieken, R.; Brügmann, L.
Automated electron probe X-ray microanalysis was used to characterize some 15.000 individual suspension particles from 50 samples of suspended matter collected from different depths at 18 stations throughout the Baltic Sea and the transient area to the North Sea. For each particle, 14 minor and major elements were determined and size information data were obtained. To process this huge amount of results, multivariate analysis techniques were invoked: the particles were classified into specific types and the abundance variations of these groups were studied.It appeared that 80% of all investigated particles contained mostly silicon, and seemed to consist of quartz, and K-rich and Fe-rich aluminosilicates. The abundance of BaSO&lt;sub&gt;4&lt;/sub&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Authigenic minerals Automation Chemical oceanography Electron microscopy Sediment composition Suspended particulate matter ANE; North Sea.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3160

Contributions à l'étude des bactéries marines du littoral belge: 1. Un appareil simple pour détacher et obtenir en suspension les bactéries contaminant des surfaces
Provedor de dados: 27
Autores: Persoone, G.
Description of a simple aparatus to remove and suspend bacteria contaminating surfaces.
Tipo: Info:eu-repo/semantics/article
Ano: 1964
URL: http://www.vliz.be/imisdocs/publications/294267.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt;: 54. Morphological study of &lt;i&gt;Artemia&lt;/i&gt; with emphasis to Old World strains: 2. Parthenogenetic populations
Provedor de dados: 27
Autores: Triantaphyllidis, G.; Criel, G.R.J.; Abatzopoulos, T.J.; Sorgeloos, P.
Eleven morphometric and one meristic character in 15 parthenogenetic &lt;i&gt;Artemia&lt;/i&gt; populations have been studied by using discriminant and cluster analysis as well as scanning electron microscopy. Discriminant analysis revealed five main groups of morphological patterns: (i) the coastal Chinese populations together with a population from Kazakhstan, (ii) the inland Chinese salt lake populations, (iii) the Greek populations, (iv) one African population from Namibia and (v) a Chinese population from Xuyu (Jiangsu province). Cluster analysis was not always in agreement with discriminant analysis and these results are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2975

Dietary ascorbic acid requirements during the hatchery production of turbot larvae
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Dhert, Ph.; Garcia Ulloa Gómez, M.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
The effect of the high ascorbic acid (AA) levels transferred through enriched live food was evaluated for turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; larvae in two consecutive feeding experiments. The same feeding strategy was applied to all treatments, except for the AA content in the live food which was manipulated through bioencapsulation with ascorbyl palmitate. This resulted finally in a low, medium and high-AA treatment. The AA incorporation levels in the turbot larvae (up to 1400 µg AA g DW&lt;sup&gt;-1&lt;/sup&gt;) were correlated with the AA content of the live food administered. However, feeding the high AA concentration resulted in the same values as for the medium treatment, indicating a saturation of the body AA reserves. Under standard...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3022

New Canuellidae from the Northern coast of Papua New Guinea (Copepoda: Harpacticoida)
Provedor de dados: 27
Autores: Fiers, F.
&lt;i&gt;Brianola vangoethemi&lt;/i&gt; sp.nov., &lt;i&gt;Scottolana glabra&lt;/i&gt; sp.nov., &lt;i&gt;Scottolana dissimilis&lt;/i&gt; sp.nov., &lt;i&gt;Canuella paenelantica&lt;/i&gt; sp.nov. and &lt;i&gt;Parasunaristes cucullaris&lt;/i&gt; gen.nov., from the Northern coast of Papua New Guinea, are described. &lt;i&gt;Brianola sydneyensis&lt;/i&gt; Hamond, 1973 and &lt;i&gt;Ellucana longicauda&lt;/i&gt;Sewell, 1940 were recorded for the first time in the coastal waters of Papua New Guinea. &lt;i&gt;E. longicauda&lt;/i&gt; is redescribed and the generic characteristics are discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/303529.pdf

Ensiled &lt;i&gt;Artemia&lt;/i&gt; biomass: a promising and practical feed for penaeid shrimp postlarvae
Provedor de dados: 27
Autores: Abelin, P.; Tackaert, W.; Sorgeloos, P.
Unlike &lt;i&gt;Artemia nauplii&lt;/i&gt; which are used extensively as convenient live feed in aquaculture, large-scale utilization of &lt;i&gt;Artemia&lt;/i&gt; juveniles and adults (biomass) is still very limited and in most cases restricted to those operations which are located near an &lt;i&gt;Artemia&lt;/i&gt; production site. Currently applied techniques for preservation of &lt;i&gt;Artemia&lt;/i&gt; biomass (e.g. blast-freezing or drying) are often cost prohibitive and in several cases not applicable at the remote and scattered sites where the &lt;i&gt;Artemia&lt;/i&gt; biomass is available. An inexpensive technique which can be readily applied under field conditions and allowing to stabilize and retain the nutritional quality of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacean larvae; Developmental stages; Feed composition; Feed preparation; Food organisms; Shrimp culture; Artemia.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2800

Studies of the life-history and energetics of marine and brackish-water nematodes: 1. Demography of &lt;i&gt;Monhystera disjuncta&lt;/i&gt; at different temperature and feeding conditions
Provedor de dados: 27
Autores: Vranken, G.; Herman, P.M.J.; Heip, C.H.R.
Aspects of the demography of &lt;i&gt;Monhystera disjuncta&lt;/i&gt; were investigated at different feeding conditions (monoxenic cultures with different bacterial strains, and different densities in the feeding suspension with one strain). Embryonic development time, minimum generation time, egg deposition rate and adult longevity depend on temperature, quality and quantity of food offered. Body mass at maturity is an allometric function of food density. It is shown that a previously inferred selectivity in food uptake is an artifact of culture conditions. pH buffering and addition of sterols permit culture of the species on a wide variety of bacterial strains. &lt;i&gt;M. disjuncta&lt;/i&gt; is less well adapted to take advantage of high food density...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergetics; Brackishwater environment; Cultured organisms; Feeding; Life history; Marine environment; Meiobenthos; Temperature effects; Water temperature; Monhystera disjuncta.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3159

Résultats des expériences de culture des huîtres au Bassin de Chasse d'Ostende
Provedor de dados: 27
Autores: Halewyck, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oyster culture Ostrea edulis Linnaeus; 1758 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1936
URL: http://www.vliz.be/imisdocs/publications/333785.pdf

The influence of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; broodstock diet on egg and larval characteristics
Provedor de dados: 27
Autores: De Caluwé, J.; Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrobrachium rosenbergii.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2545

Simultaneous determination of a-tocopheryl acetate and tocopherols in aquatic organisms and fish feed
Provedor de dados: 27
Autores: Huo, J.-Z.; Nelis, H.; Lavens, P.; Sorgeloos, P.; De Leenheer, A.P.
In aquaculture, alpha-tocopheryl acetate (alpha-TA) is the main source of vitamin E used to fortify fish feed. Alpha-TA in fish is often determined indirectly, i.e. by alkaline hydrolysis, followed by quantitation of ‘total alpha-tocopherol’ (alpha-T) and substraction of the natively present alpha-T. The aim of this study was to develop an HPLC method for the simultaneous quantitative determination of alpha-TA and free tocopherols in aquatic organisms and fish feed. The assay consists of a simple extraction with methanol containing butylhydroxytoluene (BHT) as an antioxidant, followed by reversed-phase chromatography with consecutive UV and fluorescence detection of alpha-TA and tocopherols, respectively. The peak of the internal standard tocol in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitamin E; Vitamins.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4020

Amsterdam Expeditions to the West Indian Islands, Report 64. A new family of harpacticoid copepods and an analysis of the phylogenetic relationships within the Laophontoidea T. Scott
Provedor de dados: 27
Autores: Huys, R.
A new family Cristacoxidae is proposed to accommodate the monotypic genera Cristacoxa gen. nov., Noodtorthopsyllus Lang (ex Canthocamptidae) and Cubanocleta Petkovski (ex Laophontidae). Cristacoxa petkovskii gen. et spec. nov. is described on the basis of a single male collected from coralline sand of Bonaire, West Indies. N. psammophilus Noodt and C. noodti Petkovski are redescribed and refigured on the basis of new material from the Galapagos (Isla Santa Cruz), the West Indian Islands (Curaçao, Klein Curaçao, Bonaire) and the Canary Islands (El Hierro, Tenerife). The new family is characterised by the presence of an outer spinous process on the first antennular segment, the absence of the antennary exopod, the uniramous mandibular palp, the presence of...
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7174

International study on &lt;i&gt;Artemia&lt;/i&gt; : 25. Factors determining the nutritional effectiveness of &lt;i&gt;Artemia&lt;/i&gt; : the relative impact of chlorinated hydrocarbons and essential fatty acids in San Francisco Bay and San Pablo Bay &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Léger, P.; Sorgeloos, P.; Millamena, O.M.; Simpson, K.L.
Different &lt;i&gt;Artemia&lt;/i&gt; cyst samples harvested from the San Francisco and the San Pablo Bay regions (California, USA), and suspect because of their poor nutritional performance in fish and crustacean farming, have been analyzed for their chlorinated hydrocarbon and fatty acid content. These results have been correlated with survival, growth, and biomass production of larvae of the marine crustacean &lt;i&gt;Mysidopsis bahia&lt;/i&gt; Molenock fed those different &lt;i&gt;Artemia&lt;/i&gt; in a standard culture test. Differences in chlorinated hydrocarbon content do not correlate with differences in mysid culture performance. Fatty acid profiles reveal three groups of &lt;i&gt;Artemia&lt;/i&gt; batches with high, intermediate, and low levels of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorinated hydrocarbons Fatty acids Nutritional requirements Artemia INE; USA; California; San Francisco Bay INE; USA; California; San Pablo Bay.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3965

De komeettest in oesters uit de Spuikom te Oostende
Provedor de dados: 27
Autores: Verschaeve, L.; Van Gorp, U.
Tipo: Info:eu-repo/semantics/book
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/260144.pdf

Measuring selectivity of feeding by estuarine copepods using image analysis combined with microscopic and Coulter counting
Provedor de dados: 27
Autores: Tackx, M.L.M.; Zhu, L.; De Coster, W.; Billones, R.G.; Daro, M.H.
Although estuarine zooplankters are generally believed to be detritivorous, high clearance rates by the estuarine copepods &lt;i&gt;Eurytemora affinis&lt;/i&gt; and &lt;i&gt;Acartia tonsa&lt;/i&gt; on natural estuarine microplankton have been reported in the literature. In order to enable detection of possible selectivity for these microplankton organisms over detritus, a method that measures clearance rates on total particulate matter is proposed. Image analysis is used to measure copepod gut contents, and combined with Coulter counter measurements of total particulate matter concentration, allows one to calculate clearance rates on the latter. The first results indicate that, in the Westerschelde estuary (SW Netherlands), both &lt;i&gt;E....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuarine organisms; Feeding behaviour; Image processing; Selective feeding; Acartia tonsa; Copepoda [copepods]; Eurytemora affinis.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2632

Reproductive performance of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; females in captivity
Provedor de dados: 27
Autores: Cavalli, R.O.; Lavens, P.; Sorgeloos, P.
The breeding frequency, fecundity, egg hatchability, larval output and viability of pond-reared, mature &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; females were individually followed up during 180 d. Sexually mature prawns were maintained under controlled laboratory conditions (28.7 C and 12-h light/d) in a 190-L freshwater recirculation system and fed a formulated diet. Ovarian development, moulting and spawning events were checked daily. At least six consecutive moults were recorded for each of the 18 females. The duration of the intermoult period averaged 27.5 d and was not affected by ovarian development or spawning, but intermoult periods followed by spawning had significantly lower growth rates. From a total of 126 moulting events recorded, egg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fecundity; Moulting; Prawn culture; Rearing; Recirculating systems; Reproductive cycle; Macrobrachium rosenbergii.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8494

Anatomy and ultrastructure of the proboscis in &lt;i&gt;Mesorhynchus terminostylis&lt;/i&gt; (Platyhelminthes, Rhabdocoela)
Provedor de dados: 27
Autores: De Vocht, A.
The ultrastructural organization of the proboscis in Mesorhynchus terminostylis is distinctly different from that in other members of the Polycystididae in which it is currently classified. The sheath epithelium is formed by three belts, all with intra-epithelial nuclei. The apical belt of the bipartite cone epithelium has a single intrabulbar nucleus, and the basal belt possesses five insunk nucleiferous cell parts behind the bulb. Six types of glands surface through the epithelia; the three types emerging through the cone epithelium can be homologized with those described for Polycistis naegelii. Only uniciliary receptors are found in the epithelium. The musculature in the bulb has a very loose appearance, and the bulbar septum appears to be a bipartite...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262354.pdf

Konsumptie en produktie van post-larvale &lt;i&gt;Crangon crangon&lt;/i&gt; (L.) (Crustacea, Decapoda) in de Belgische kustwateren
Provedor de dados: 27
Autores: Redant, F.
The objectives of the investigations comprise three parts: a) an accurate determination of the abundance and biomass of the post-larval &lt;i&gt;Crangon crangon&lt;/i&gt; (L.) population in the Belgian coastal waters ; b) a quantitative analysis on a yearly basis of the consumption and production by this population, including a detailed description of the yearly fishery- and predation mortality; c) the formulation of a quantitative consumption-production-model which describes the trophic relationships of the population of postlarval &lt;i&gt;Crangon crangon&lt;/i&gt; (L.). Method: The inventory of the biotic and abiotic factors, which influence the abundance and biomass of the population of post larval &lt;i&gt;Crangon crangon&lt;/i&gt; (L.), leads to a...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1978
URL: http://www.vliz.be/imisdocs/publications/226610.pdf

Découverte du gamétophyte femelle et du tétrasporophyte de &lt;i&gt;Dasyella gracilis&lt;/i&gt; Falkenberg (Rhodophyta: Ceramiales)
Provedor de dados: 27
Autores: Coppejans, E.; Boudouresque, C.F.
&lt;i&gt;Dasyella gracilis&lt;/i&gt; had not been collected for more than a century. A detailed description is given from specimens collected in Pyrénées-Orientales (Mediterranean Sea, France). The female gametophyte and the tetrasporophyte are described for the first time. The systematic position of the genus &lt;i&gt;Dasyella&lt;/i&gt; is confirmed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant reproductive structures; Dasyella gracilis.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3315

Size spectra of nematode assemblages in an East African mangrove
Provedor de dados: 27
Autores: Vanhove, S.
The size spectra and biomass of the nematode assemblages in the sediments of &lt;i&gt;Avicennia marina, Bruguiera gymnorrhiza, Ceriops tagal&lt;/i&gt; and &lt;i&gt;Sonneratia alba&lt;/i&gt; at Gazi Bay (Kenya), are described. Weighted mean length (resp. dry weight) of the nematodes varies from 0.543 to 1.367mm (resp. 0.10 to 0.19µg) and differs considerably from geometric and median values. Nematodes become longer (around &lt;i&gt;Avicennia&lt;/i&gt; and &lt;i&gt;Sonneratia&lt;/i&gt;) or remain similar in length (around &lt;i&gt;Bruguiera&lt;/i&gt; and &lt;i&gt;Ceriops&lt;/i&gt;) with increasing depth into the sediment. Body elongation is suggested to be an adaptation to low oxygen and food supply, which are under the impact of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass Size Nematoda [Nematodes] ISW; Kenya; Gazi Bay.
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/243963.pdf

De Scheldeatlas: een beeld van een estuarium
Provedor de dados: 27
Autores: Van Eck, B.T.M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Atlases ANE; Netherlands; Westerschelde Belgium; Zeeschelde.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4896

Gegevens over de walvisachtigen (Cetacea) van de Vlaamse kust en de Schelde uit de periode 1969-1975
Provedor de dados: 27
Autores: De Smet, W.M.A.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marine mammals Cetacea [whales; Dolphins and porpoises] ANE; Belgium; Zwin Belgium; Het Zwin natuurreservaat Belgium; Schelde.
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/242687.pdf

Efficacy of some anthelmintics against the swimbladder nematode &lt;i&gt;Anguillicola crassus&lt;/i&gt; of eel &lt;i&gt;Anguilla anguilla&lt;/i&gt; under saltwater conditions
Provedor de dados: 27
Autores: Geets, A.; Liewes, E.W.; Ollevier, F.P.
Six anthelmintic drugs, Ivermectin, Closantel, Safewormer, Masoten, Oxfendazole and L-Levamisol·HCL were screened for their efficacy against &lt;i&gt;Anguillicola crassus&lt;/i&gt;, a swimbladder nematode of European eel &lt;i&gt;Anguilla anguilla&lt;/i&gt;. All experiments were carried out under saltwater conditions. Of the 6 drugs, L-Levamisole·HCL used in a bath treatment gave the most promising results. Evaluation of the curative dose of L-Levamisole·HCL showed that a long-term treatment (24h). Dosages lower than 20 mg 1&lt;sup&gt;-1&lt;/sup&gt; showed a lower efficacy against &lt;i&gt;Anguillicola crassus&lt;/i&gt;. However, even with a long-term, high-dosage treatment, some recovery of adult nematodes with sublethal damage and/or migration of viable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anguilla anguilla (Linnaeus; 1758) Anguillicola crassus.
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/299063.pdf

Distribution et caractéristiques des communautés phytoplanktoniques dans le Bassin Tyrrhénien de la Méditerranée en fonction des facteurs ambiants et à la fin de la stratification estivale de l'année 1963
Provedor de dados: 27
Autores: Margalef, R.; Herrera, J.; Steyaert, M.; Steyaert, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytoplankton MED; Tyrrhenian Sea.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289061.pdf

Un polychète nouveau &lt;i&gt;Sphaerodorum ophiurophoretos&lt;/i&gt; nov. sp. (Polychaeta: Sphaerodoridae), symbiotique de l'ophiure &lt;i&gt;Amphiphilos squamata&lt;/i&gt; (Delle Chiaje, 1828)
Provedor de dados: 27
Autores: Martin, D.; Alvà, V.
A new species of spaerodorid polychaete, &lt;i&gt;Sphaerodorum ophiurophoretos&lt;/i&gt; nov. sp., is described. It is characterized by two rows of dorsolateral macrocrotubercles with terminal papillae and two rows of dorsal microcrotubercles without basal collars, as well as by simple setae having both outer and inner denticles. &lt;i&gt;S. ophiurophoretos&lt;/i&gt; has been collected near Wimereux (Pas-de-Calais, France) where it is symbiotic with the ophiuroid &lt;i&gt;Amphipholis squamata&lt;/i&gt; (DELLE CHIAJE, 1828).
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/303543.pdf

Nekton communities of an intertidal creek of an European estuarine brackish marsh
Provedor de dados: 27
Autores: Cattrijsse, A.; Makwaia, E.S.; Dankwa, H.R.; Hamerlynck, O.; Hemminga, M.A.
The utilization of an estuarine brackish marsh in the Westerschelde estuary (southwest Netherlands) by fish and crustaceans visiting the intertidal creeks at rising tides was investigated over an 18 mo period. Samples were collected every month over a tidal cycle. A stow net passively fished the nekton migrating in and out of the marsh habitat. Simultaneous measurements of current speed and waterheight allowed for quantification of the catches. Multivariate clustering and ordination techniques were applied to assess temporal changes in the nekton assemblage. A total of 68 fish and crustacean species were caught but only 38 were regular visitors of the marsh creek. The marsh nekton community proved to have a very stable character. Only 40% of the observed...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/316179.pdf

Cofeeding of phospholipids to turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; L. larvae as a tool to reduce live food consumption
Provedor de dados: 27
Autores: Dhert, P.; González Félix, M.; Van Ryckeghem, K.; Geurden, I.; Thysen, F.; Lebegue, E.; Lavens, P.; Sorgeloos, P.
The possible benefits of feeding a formulated diet, together with &lt;i&gt;Artemia&lt;/i&gt; , to first-feeding turbot larvae were investigated. Five dietary regimes were used: control ( &lt;i&gt;Artemia&lt;/i&gt; only), cofeeding with a diet rich in phospholipid (PL) from bovine brain, cofeeding with a diet rich in free fatty acids (FFA) from the same source, cofeeding with a commercial diet (Lansy A2), and a formulated feed only (PL-rich diet). All treatments with artificial diets and the control treatment that received &lt;i&gt;Artemia&lt;/i&gt; exclusively gave a similar survival rate of the fish at day 29. Cofeeding with artificial diets resulted in a lower growth rate than the control treatment. Cofeeding the larvae with PL-rich or FFA-rich diets did...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Feeding experiments; Fish culture; Fish larvae; Food organisms; Scophthalmus maximus; Artemia.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4014

Analyse chimique continue de la mer: II. Mission internationale &lt;i&gt;Mechelen&lt;/i&gt; 1968 en Méditerranée
Provedor de dados: 27
Autores: Ballester, A.; Cruzado, A.; Macchi, G.
Results of automatic and continuous analysis of both physical and chemical parameters of sea water between Marbella (Malaga) and Brest (&lt;i&gt;Mechelen&lt;/i&gt; cruise, Mediterranean 1968, supported by the « Institut royal des Sciences naturelles de Belgique ») are studied in this paper.Two conclusions are reached:  1° The distribution of salinity, temperature and nitrate, sometimes anomalous, appears to follow some rythm or law. 2° There appears a close spacial relationship too between these anomalies and fishery. Then, it is possible to use the continuous automatic method for the exploratory work on fishery technology.
Tipo: Info:eu-repo/semantics/article
Ano: 1969
URL: http://www.vliz.be/imisdocs/publications/289043.pdf

Perspectives in maricultural technologies
Provedor de dados: 27
Autores: Persoone, G.; Sorgeloos, P.
Starting with the major issues of the recent World Conference on Aquaculture, organized in 1981 jointly by the European Mariculture Society and the World Mariculture Society, the paper indicates a number of new and appealing maricultural technologies in shellfish and fish farming. It is postulated that several of the techniques described will have a far-reaching impact on maricultural production in the next decade. Special attention is given to the potential of the mass production of brine shrimp &lt;i&gt;Artemia&lt;/i&gt; in extensive and intensive operations, and in particular to its key role in vertically integrated aquaculture.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Literature reviews.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3385

EAEG President's Address, 54th EAEG meeting, Paris, 1 June 1992: Global change to global resources
Provedor de dados: 27
Autores: Henriet, J.-P.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2790

Studie van het macrobenthos in de zuidelijke Noordzee
Provedor de dados: 27
Autores: Govaere, J.C.R.; Thielemans, L.K.; De Boever, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Molluscs ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288147.pdf

Composition and zoogeographical affinities of the stomatopod and decapod crustacean fauna collected during the Ceemex P4 cruise in the Gulf of Tehuantepec, Mexico
Provedor de dados: 27
Autores: Hendrickx, M.E.; Vázquez-Cureño, L.A.
The CEEMEX-P4 cruise represented the first sampling expedition to the Gulf of Tehuantepec within the frame of a comprehensive project aimed at the study of demersal resources associated with major shrimp (Penaeidae) fishing grounds off the coast of western Mexico. The material was collected in March-April 1991, aboard the R/V "El Puma" (ICML, UNAM). A total of 29 stations were occupied and samples of invertebrates and fishes were obtained with three types of gear: an 80-foot shrimp trawl, a Mediterranean bottom trawl and a modified Agassiz dredge. Fifty-two species of macro-crustaceans were collected; these included 6 species of stomatopods, and 46 species or subspecies of decapod crustaceans (10 Penaeoidea, 3 Caridea, 2 Palinura, 2 Anomura, and 29...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/303557.pdf

The calculation of particulate primary production in a stratified body of water using a modification of the Vollenweider formula
Provedor de dados: 27
Autores: Mommaerts, J.-P.
A model which integrates particulate primary production over time (light-day) and depth (euphonic layer) was used extensively for calculations of the primary production results of the Fladen Ground Experiment (FLEX'76), and is described here in detail. The photosynthesis-light relationship occupies a central position in the computational scheme. The choice of an adequate relationship (here, a variant of the Vollenweider's (1965) expression), the properties of such a formula, and the relevant parameters are discussed in the paper. The proposed approach is useful whenever specific problems imply a reduction to elemental processes, as it was the case during the Fladen Ground Experiment. Thus, the difficulty of integrating primary production over a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Particulate matter; Primary production.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3420

Biodiversiteit op de Scheldeschorren
Provedor de dados: 27
Autores: Van den Bergh, E.; Huiskes, A.; Criel, B.; Meire, P.
The tidal marshes along the Scheldt estuary are rather unique in Europe, because they still exist along the complete salinity gradient. Key ecological factors for the vegetation are salinity, tidal regime and current and historical management. A general portrait with the most characterising plant species as well as a succession scheme are presented for salt, brackish and fresh tidal marshes separately, because they have few plant species and vegetation types in common. Tidal regime changes as a combined effect of sea level rise and the channel deepening in the Westerscheldt. This affects the marsh vegetation. Biodiversity patterns and factors affecting the distribution of species on the tidal marshes are discussed for plants, gastropodes, arthropodes and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Salt marshes.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280700.pdf

Study of trace elements in stratified waters of the Tyrrhenian sea from the surface to 1.000 meters depth
Provedor de dados: 27
Autores: Peeters, E.
During the last 10 years, the Sub-Committee on Oceanic Research of NATO has realized many expiditions in the Tyrrhenian sea and has allowed us to study its hydrology, surface currents, bathymetry and gravimetry. By its topography and characteristics (especially by its deep waters of very long residence time) we have identified it to a close basin. Indeed there are not any important coming waters from the rivers, and the surface currents let us see waters coming out between Sicily and France and in the Strait of Messina; in the other hand two parallele volcanic ridges, one of them being submarine, give an important amount of elements and oligo-elements. We are studying trace elements in stratified waters from the surface to 1.000 meters depth and we hope of...
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/295208.pdf

Integrated coastal research in the SW Netherlands
Provedor de dados: 27
Autores: Mulder, J.P.M.; Louters, T.; Hallie, F.; Postma, R.; Craeymeersch, J.A.; Hamerlynck, O.
The geomorphological and ecological response of the ebb tidal deltas of the SW Netherlands to implementation of the Delta Project during the last decades, has been the subject of an integrated research project. General observed geomorphological trends are: erosion of the delta fronts and of the relic tidal bars in the landward parts of the deltas, and sedimentation in the tidal channels and in longshore bars at the edges of the deltas. Ecologically, a general trend towards richer benthic fauna communities is observable. The integrated approach in coastal research combining geomorphological analysis of field data with numerical modelling, and integrating hydraulic, geomorphological, sedimentological and biological data, has appeared very promising. Progress...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/300799.pdf

&lt;i&gt;Sargassum muticum&lt;/i&gt; (Yendo) Fensholt &lt;i&gt;in situ&lt;/i&gt; bij Cap Gris-Nez (Pas-de-Calais, Frankrijk)
Provedor de dados: 27
Autores: Coppejans, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1979
URL: http://www.vliz.be/imisdocs/publications/303327.pdf

Nutritional and zootechnical aspects in the hatchery production of seabream &lt;i&gt;Sparus aurata&lt;/i&gt; without algae: preliminary results
Provedor de dados: 27
Autores: De Wolf, T.; Dehasque, M.; Candreva, P.; Cirillo, A.; Caggiano, M.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sparus aurata [Gilthead].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2550

Comparison of three dry deposition models applied to field measurements in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Rojas, C.M.; Van Grieken, R.; Laane, R.W.P.M.
Dry deposition velocities have been calculated using three different approaches. Turbulent wind profile theory has been used to predict the drag coefficient, wind speed and friction velocity at 10m height when the wind speed is measured at a higher altitude. The resulting parameters were introduced in a two-layer deposition model. The second approach was the well-known model of Slinn and Slinn (1980, Atmospheric Environment 14, 1013-1016), whereas the third corresponded to the model published by Williams (1982, Atmospheric Environment 16, 1933-1938). Results point to clear differences. However, in a field experiment carried out at the Southern Bight of the North Sea, all three approaches show relatively comparable results. The role played by the size...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2748

Suspended barite as a tracer of biological activity in the Southern Ocean
Provedor de dados: 27
Autores: Dehairs, F.A.; Stroobants, N.; Goeyens, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10145

Feeding of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; on yeast: effect of mechanical disturbance, animal density, water quality and light intensity
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
Details are given of experiments conducted to determine the effects of tank culture conditions on the feeding of &lt;i&gt;Artemia&lt;/i&gt;. Mechanical disturbance, animal density and water quality were found to affect the feeding rate of &lt;i&gt;Artemia&lt;/i&gt;. The importance of culture conditions in maintaining a rate of food consumption which does not limit the growth of the brine shrimp is stressed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brine shrimp culture; Culture tanks; Feeding; Water quality; Artemia.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2811

Proposal for a short-term toxicity test with &lt;i&gt;Artemia&lt;/i&gt; nauplii
Provedor de dados: 27
Autores: Vanhaecke, P.; Persoone, G.; Claus, C.; Sorgeloos, P.
Although standardization of toxicity tests on aquatic organisms is an urgent necessity, very little has yet been achieved for the marine environment. As a first step in this direction, a simple, inexpensive and reliable short-term routine test with &lt;i&gt;Artemia&lt;/i&gt; larvae is proposed. This test is the result of an extensive study in our laboratory, taking into account the advantages and disadvantages of &lt;i&gt;Artemia&lt;/i&gt; bioassays published by various authors. The major advantage of the brine shrimp as a test species is its continuous availability under the form of dry cysts which can be hatched very easily; this eliminates all biological, technological, and financial problems of stock recruitment and/or culturing. The acute test...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nauplii; Toxicity tests; Artemia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3711

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichthyan fishes. Part A. Selachii. 1b: Order: Hexanchiformes - Family: Chlamydoselachidae. 5: Order: Heterodontiformes - Family: Heterodontidae. 6: Order: Lamniformes - Families: Cetorhinidae, Megachasmidae; Addendum 1 to 3: Order Squaliformes; Addendum 1 to 4: Order: Orectolobiformes; General Glossary; Summary part A
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
The morphology of the microteeth of the following taxa is described and illustrated with SEM-photographs in order to elucidate the interrelationships within the shark orders and families concerned and also from odontological point of view. Contribution 1b: The monotypic single genus of the hexanchiform Chlamydoselachidae. The tooth morphology of &lt;i&gt;C. anguineus&lt;/i&gt; is compared with that of taxa of the only other hexanchiformes. The dental histology is commented on, and the dental vascular type is re-examined in order to understand the root form. The results are summarized in an odontological diagnosis for the genus. Investigational results on dental morphology, histology and vascularization recommend a reconsideration of the systematic position...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/263927.pdf

A seasonally varying biotope at Signy Island, Antarctic: implications for meiofaunal structure
Provedor de dados: 27
Autores: Vanhove, S.; Beghyn, M.; Van Gansbeke, D.; Bullough, L.W.; Vincx, M.
Under the typical high-latitude conditions of temperature, productivity and settlement of chlorophyll and phaeophytin to the sediment, many benthic organisms in the Antarctic show strong seasonal variation. Although meiofauna comprise an important component of the southpolar benthic ecosystem, our knowledge of them is limited. The metazoan meiofauna and the surrounding sediments were studied fortnightly for 18 mo in a shallow bay at Signy Island (Factory Cove, South Orkneys, Antarctica) to test whether and how the temporal variability of the environment influenced meiobenthos dynamics. By examination of the distribution of the abundance and biomass of the total community, the density of higher taxonomic groups, and of individual dominant nematode genera...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos; Biomass; Population density; Seasonal variations; Sediment analysis; Trophic relationships; Copepoda [copepods]; Nematoda [Nematodes]; Ostracoda.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6138

Het meiobenthos in de zuidelijke Noordzee
Provedor de dados: 27
Autores: Van Damme, D.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Check lists ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/156192.pdf

Population dynamics of brown shrimps (&lt;i&gt;Crangon crangon&lt;/i&gt;) in the Belgian coastal waters. 1. Consumption-production-model
Provedor de dados: 27
Autores: Redant, F.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Population dynamics Crangon crangon (Linnaeus; 1758) [Brown shrimp] ANE; Belgium; Belgian Coast.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/128840.pdf

Meiobenthos on the Halley Bay and Kapp Norvegia transects
Provedor de dados: 27
Autores: Dahms, H.-U.; Herman, R.; Schockaert, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6779

Microbial control of the culture of &lt;i&gt;Artemia&lt;/i&gt; juveniles through preemptive colonization by selected bacterial strains
Provedor de dados: 27
Autores: Verschuere, L.; Rombaut, G.; Huys, G.; Dhont, J.; Sorgeloos, P.; Verstraete, W.
The use of juvenile &lt;i&gt;Artemia&lt;/i&gt; as feed in aquaculture and in the pet shop industry has been getting more attention during the last decade. In this study, the use of selected bacterial strains to improve the nutritional value of dry food for &lt;i&gt;Artemia&lt;/i&gt; juveniles and to obtain control of the associated microbial community was examined. Nine bacterial strains were selected based on their positive effects on survival and/or growth of &lt;i&gt;Artemia&lt;/i&gt; juveniles under monoxenic culture conditions, while other strains caused no significant effect, significantly lower rates of survival and/or growth, or even total mortality of the &lt;i&gt;Artemia&lt;/i&gt; . The nine selected strains were used to preemptively colonize the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Biological control; Brine shrimp culture; Chemotaxonomy; Colonization; Feeds; Interspecific relationships; Nutrition; Polyculture; Survival; Artemia.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4039

An automated method for the assessment of mercury adsorption rates on particulate suspended matter
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Decadt, G.; Dehairs, F.A.; Goeyens, L.
A continuous filtration system connected to a mercury auto-analyzer has been constructed for obtaining mercury adsorption rates on particulate suspended matter. The capabilities of this device have been demonstrated by carrying out a series of experiments under controlled physicochemical parameter conditions on samples of the Scheldt estuary. Duplicate measurements showed coefficients of variation ranging from 1 to 6 %. Depending on the physico-chemical conditions, the initial adsorption rate per unit of dissolved mercury concentration varied between 1.2 and 8.1 x 10&lt;sup&gt;-2&lt;/sup&gt; mn&lt;sup&gt;-1&lt;/sup&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adsorption; Mercury; Methodology; Particulates; Suspended matter.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3413

Sand dwelling Turbellaria from the Netherlands Delta area
Provedor de dados: 27
Autores: Martens, P.M.; Schockaert, E.R.
Sand dwelling Turbellaria from the Delta of the Rivers Rhine, Meuse and Scheldt have been investigated. Thirty-eight samples taken from littoral and sublittoral stations in the Grevelingen, Eastern and Western Scheldt have been analysed. Thirty-three species were recorded (Acoela were not considered); twenty-four of them are new for the area and seven new species are described. Density and diversity of Turbellaria were higher in the Eastern Scheldt than in the Western Scheldt or in the Lake Grevelingen. A maximum density of 82 ind./100 cm³ was noted. A tentative calculation on relative abundance of the representatives of the different Turbellaria orders is established. Proseriata seem to be dominant in the localities studied.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos Taxonomy Turbellaria [Flatworms] ANE; Netherlands; Delta Area.
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/260405.pdf

Particulate trace metals above the Southern Bight of the North Sea: 1. Analytical procedures and average aerosol concentrations
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Dedeurwaerder, H.
Heavy metal concentrations in total particulate suspended matter and size fractionated particulate suspended matter above the Southern Bight of the North Sea have been assessed. Most of the samples were collected from a light vessel; the total sampling period covered about 70 days at sea. Stringent precautions were taken during sampling, storage, handling and analysis of the samples. As a conclusion, we found that on a long-term basis the aerosol concentrations above the North Sea have a fairly homogeneous composition, but short-term variations probably resulting from point emissions were observed. The cascade impactor results indicated that Pb, Cu, Cd and Zu were carried by submicrometer aerosols, Na, Fe, Mn and Al by supermicrometer aerosols. Most of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Air pollution Atmospheric particulates Meteorology Seasonal variations Statistical analysis Trace metals Troposphere Winds ANE; North Sea; Southern Bight.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3106

Stygofauna of the Canary Islands: 10. Rotundiclipeidae Fam. Nov. (Copepoda, Harpacticoida) from an anchihaline cave on Tenerife, Canary Islands
Provedor de dados: 27
Autores: Huys, R.
A new family Rotundiclipeidae is proposed for an anchihaline cave-dwelling harpacticoid Rotundiclipeus canaricnsis gen. nov:, sp. nov. from Tenerife, Canary Islands. It is suggested that the family should be placed in the Cervinioidea grouping also the chiefly deep-sea Cerviniidae and the mesopelagic Aegisthidae. Because of numerous unique and unusual derived traits, the smallsized Rotundiclipeidae are regarded as the advanced sistergroup of the Cerviniidae-Aegisthidae complex whilst the Cerviniidae are standing closest to the cervinioid ancestor. In the context of Stock's (1986) conclusion it is postulated that both the cave-dwelling Rotundiclipeidae and the deep-sea Cerviniidae are originated from a common shallow water ancestor.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7052

Systematic revision of the Chlamydinae (Pectinidae, Bivalvia, Mollusca) of the European Cretaceous part 4: &lt;i&gt;Merklinia&lt;/i&gt;
Provedor de dados: 27
Autores: Dhondt, A.V.
This paper is the fourth of a series dealing with the systematic revision of the European Cretaceous &lt;i&gt;Chlamdydinae&lt;/i&gt; (&lt;i&gt;Pectinidae, Bivalvia, Mollusca&lt;/i&gt;). Two European and one Tethyan species of the genus &lt;i&gt;Merklinia&lt;/i&gt; Sobetzki, 1960 (&lt;i&gt;M. aspera&lt;/i&gt; (Lamarck, 1819), &lt;i&gt;M. variabilis&lt;/i&gt; (Von Hagenow, 1842), &lt;i&gt;M. perornata&lt;/i&gt; (Cottreau, 1922)) are described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cretaceous Bivalvia Mollusca [Molluscs] Pectinidae [scallops] Africa ANE; Europe British Isles; England; Dorset Europe; England France Germany Russia Ukraine.
Ano: 1975
URL: http://www.vliz.be/imisdocs/publications/276443.pdf

Differential food preferences in three co-occurring species of &lt;i&gt;Tisbe&lt;/i&gt; (Copepoda, Harpacticoida)
Provedor de dados: 27
Autores: Vanden Berghe, W.; Bergmans, M.
Killed samples of a monoclonal bacterial strain and an axenic alga were offered in different proportions to &lt;i&gt;Tisbe holothuriae, T. battagliai&lt;/i&gt; and &lt;i&gt;T. furcata&lt;/i&gt;. Incorporation of carbon ranged from 0.05 and 0.39 µg C (adult male)&lt;sup&gt;-1&lt;/sup&gt; d&lt;sup&gt;-1&lt;/sup&gt;. Using a radiolabelling technique, the ratio in which the two food types were assimilated was compared to the ratio in which they were offered. Neither &lt;i&gt;T. holothuriae&lt;/i&gt; nor its sibling species fed selectively under our conditions, but &lt;i&gt;T. furcata&lt;/i&gt; showed a clear preference for bacteria. These findings constitute the first evidence for intrageneric dietary differentiation in harpacticoids. The results of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food preferences Tisbe battagliai Tisbe furcata (Baird; 1837) Tisbe holothuriae.
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/100832.pdf

Evidence for the induction of cyst diapause by heat-shock in &lt;i&gt;Artemia&lt;/i&gt; (International study on &lt;i&gt;Artemia&lt;/i&gt;: 48)
Provedor de dados: 27
Autores: Abatzopoulos, Th.; Triantaphyllidis, G.; Sorgeloos, P.; Clegg, J.S.
The brine shrimp &lt;i&gt;Artemia&lt;/i&gt; produces embryos (cysts) in a state of obligate dormancy called diapause. Diapause is terminated by a variety of treatments, including dehydration. Previous work suggested that some cysts can be induced to reenter diapause when exposed to prolonged anoxia. Results presented in this paper indicate that heat shock (42-43°C) can also lead to diapause induction. The basis for this proposal is the finding that the final hatching level of heat-shocked cysts is increased by a post-heat dehydration, a treatment known to terminate diapause. The respiration rate of postheat-shocked cysts was found to be much lower than controls. Electrophoretic profiles of proteins in extracts from control and heatshocked cysts suggest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2531

Studie der pesticiden in het water, in de sedimenten van de zee en de estuaria: identificatie en eliminatie der interferenties door massaspectrometrie
Provedor de dados: 27
Autores: Vanderghinste, A.; Van Binst, G.; Mortelmans, C.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/286399.pdf

Xiphidorini (Nematoda: Longidoridae) from Uruguay
Provedor de dados: 27
Autores: Coomans, A.; Chaves, E.; De León, L. L.
Soil samples from a nature reserve for indigenous animals in Uruguay yielded one new and two known &lt;i&gt;Xiphodorus&lt;/i&gt; species and one new &lt;i&gt;Paraxiphidorus&lt;/i&gt; species. The new &lt;i&gt;Xiphidorus&lt;/i&gt; is described as &lt;i&gt;X. uruguayensis&lt;/i&gt; n. sp. It can be distinguished from other &lt;i&gt;Xiphidorus&lt;/i&gt; species by its large body size, cylindrical anterior end offset from the remainder of the body by a sudden expansion of the latter and by its barrel- to heart-shaped amphid with small slit-like aperture. The other species found were &lt;i&gt;X. balcarceanus&lt;/i&gt; Chaves &amp; Coomans, 1984 and &lt;i&gt;X. minor&lt;/i&gt; Rashid, Coomans &amp; Sharma, 1986. The new &lt;i&gt;Paraxiphidorus&lt;/i&gt; species,...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303555.pdf

Development of a flow-through system for the study of toxicity and bioaccumulation processes in aquatic invertebrates
Provedor de dados: 27
Autores: Blust, R.; Decleir, W.
A flow-through test system for the study of toxicity and bioaccumulation processes is described. The apparatus can operate within a very wide range of flow rates. Flow deviations are less than 2% and the variation in test-agent concentration, (determined for copper) ranges from 3 to 8%. As a practical test a copper-toxicity experiment on adult &lt;i&gt;Artemia&lt;/i&gt; was carried out and the results compared with data obtained from a similar but static assay. The results indicate that: - bioassay and accumulation experiments must preferably be carried out under flow-through conditions to keep the concentration and bioavailability of the toxicant as constant as possible;- the data analysis must be based upon measured test-solution toxicant-concentrations...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioaccumulation; Marine invertebrates; Toxicity tests.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3261

Physical properties of sand and mud sediments
Provedor de dados: 27
Autores: Malherbe, B.; Bastin, A.; De Putter, B.
The equations are set up to calculate the initial rigidity, Ty, of mud deposits as a function of specific mass and composition. This rigidity seems to be the most general characteristic of mud to describe its physical behaviour, under wave and current action. The threshold criterion for sand bottoms is described as measured by flume experiments (wave and currents). All these fundamental results are used to solve problems like sedimentation, erosion and navigation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mud flats; Sand banks; Sediments.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3351

Subsidence in coastal lowlands due to groundwater withdrawal: the geological approach
Provedor de dados: 27
Autores: Baeteman, C.
The vulnerable situation of coastal lowlands with respect to flooding is aggravated by land subsidence due to groundwater withdrawal. Because of the growing demands of the ever increasing population, industry and tourism, excessive and uncontrolled pumping is the order of the day in most of the great coastal cities. Therefore, well-balanced groundwater management has become imperative for the survival of these sinking cities. Groundwater management implies geotechnical and hydrogeological research. The geological data, however, still form the basic framework, but geological data can only be useful if the three-dimensional spatial extension of relevant units is delineated. The elaboration of the geometry based on the knowledge of processes responsible for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal zone Deposition features Facies Flooding Geological data Ground water Pumping Subsidence China; People's Rep.; Shanghai.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2918

Phenotypic characterization of the marine pathogen &lt;i&gt;Photobacterium damselae&lt;/i&gt; subsp. &lt;i&gt;piscicida&lt;/i&gt;
Provedor de dados: 27
Autores: Thyssen, A.; Grisez, L.; van Houdt, R.; Ollevier, F.P.
The taxonomic position of &lt;i&gt;Photobacterium damselae&lt;/i&gt; subsp. &lt;i&gt;piscicida&lt;/i&gt;, the causative agent of fish pasteurellosis, is controversial as this organism has also been described as '&lt;i&gt;Pasteurella piscicida&lt;/i&gt;'. To clarify the taxonomic position of the pathogen, a total of 113 &lt;i&gt;P. damselae&lt;/i&gt; subsp. &lt;i&gt;piscicida&lt;/i&gt; strains and 20 &lt;i&gt;P. damselae&lt;/i&gt; subsp. &lt;i&gt;damselae&lt;/i&gt; strains, isolated from different geographical areas and from the main affected fish species, were analysed using 129 morphological and biochemical tests, including the commercial API 20E and API CH50 test systems. For comparison, the type strains of other &lt;i&gt;Photobacterium&lt;/i&gt; species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Numerical taxonomy.
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/238535.pdf

Feeding biology of a predatory and a facultatively predatory nematode (&lt;i&gt;Enoploides longispiculosus&lt;/i&gt; and &lt;i&gt;Adoncholaimus fuscus&lt;/i&gt;)
Provedor de dados: 27
Autores: Moens, T.; Verbeeck, L.; Vincx, M.
This paper reports on the feeding biology of a predatory and of a facultatively predatory nematode, &lt;i&gt;Enoploides longispiculosus&lt;/i&gt; and &lt;i&gt;Adoncholaimus fuscus&lt;/i&gt;, respectively. Both species represent genera which are common and abundant in the littoral of the North Sea and in adjacent estuaries. Observations on the foraging behaviour of both species are given, and for the former species, a range of prey from its natural habitat is identified. Respiration was determined using a polarographic oxygen electrode technique and compared to consumption determined as predation rates on the monhysterid nematode &lt;i&gt;Diplolaimelloides meyli&lt;/i&gt;. The daily C-loss due to respiration accounted for 15% of the measured C-consumption...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbon; Communities; Communities; Communities; Ecology; Flat; Food; Marine; Meiobenthos; Water.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7336

Observations sur la croissance de Mollusques dans le bassin de chasse d'Ostende
Provedor de dados: 27
Autores: Leloup, E.; Polk, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth Molluscs ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1963
URL: http://www.vliz.be/imisdocs/publications/290068.pdf

Ekologische en fytoplanktonische studie van de zuidelijke Noordzeewateren (met inbegrip van geofysische en hydrodynamische gegevens)
Provedor de dados: 27
Autores: Smeets, J.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/226603.pdf

Larviculture of marine finfish: the current status
Provedor de dados: 27
Autores: Sorgeloos, P.; Dehasque, M.; Dhert, Ph.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2670

Estimating estuarine residence times in the Westerschelde (The Netherlands) using a box model with fixed dispersion coefficients
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.
The residence time of the water masses in the Westerschelde estuary was determined using a simple compartment-model that simulates the advective-diffusive transport of a conservative dissolved substance (chlorinity). The residence time of a water parcel in the upstream part of the estuary (i.e. the time needed for this water parcel to leave the estuary) varied from about 50 days in winter to about 70 days in summer. The most seaward compartment had residence times of about 10-15 days. Dispersive coefficients that are fixed in time were able to reproduce the observed salinity distributions very well in the Westerschelde. They were obtained by calibration on observed chlorinities. It is argued that the apparent relationship of dispersive coefficients with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diffusion coefficients Environmental monitoring Estuarine dynamics Mathematical models Residence time Salinity profiles Water circulation ANE; Netherlands; Westerschelde.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8410

&lt;i&gt;Pisione papuensis&lt;/i&gt; n. sp. (Polychaeta: Pisionidae) a new pisionid from Papua New Guinea
Provedor de dados: 27
Autores: Govaere, J.C.R.; De Wilde, C.L.M.
A new species of the genus &lt;i&gt;Pisione&lt;/i&gt;, described here as &lt;i&gt;Pisione papuensis&lt;/i&gt; n. sp. was collected by the first author from Laing Island, Papua New Guinea, in september-november 1985. The species belongs to the  &lt;i&gt;gopalai-complexa-alikunhii-africana&lt;/i&gt; group of Laubier.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Taxonomy Pisionidae Polychaeta [Bristle worms] ISEW; Papua New Guinea.
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/303546.pdf

Oxidation rate of organic carbon in the mesopelagic water column as traced by suspended barium-barite
Provedor de dados: 27
Autores: Dehairs, F.A.; Goeyens, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7108

Revision of &lt;i&gt;Bathyepsilonema&lt;/i&gt; species from Antarctica described by Steiner (1931) (Nemata: Epsilonematidae)
Provedor de dados: 27
Autores: Decraemer, W.; Noffsinger, E.M.
A revision was made of the &lt;i&gt;Bathyepsilonema&lt;/i&gt; species from the German South Polar Expedition of 1901-1903 described by Steiner's collection. Two species were identified: &lt;i&gt;Bathyepsilonema drygalskii&lt;/i&gt; Steiner, 1931 and &lt;i&gt;B. brachycephalum&lt;/i&gt; Steiner, 1931. &lt;i&gt;B. brachycephalum&lt;/i&gt; is re-established as a valid species, characterized by a far anterior position of the amphideal fovea, 99-101 body annules and 42-51 µm long spicules. Both species were also found among material from the U.S. Antarctic Research Program 1969-1970, and are redescribed.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/303547.pdf

Effect of temperature and food on hexavalent chromium toxicity to the marine nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt;
Provedor de dados: 27
Autores: Vranken, G.; Tiré, C.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7111

An inexpensive turbidimeter for the automatic culturing of filter feeders
Provedor de dados: 27
Autores: Versichele, D.; Bossuyt, E.; Sorgeloos, P.
Automatization in the food distribution is necessary for the controlled culturing of filter feeders in high densities. Numerous devices have been described to distribute specific quantities of food suspension at preset time intervals (cf. review in Kinne, 1977). The number of systems which, however, add food whenever a preset critical turbidity of the medium is exceeded are rather limited. They furthermore are either very expensive (sophisticated equipment) or have to be cleaned very often (cf. review in Sorgeloos et al., 1976). We tried to simplify the technological complexity of the existing systems and developed an inexpensive, automatic, self cleaning food distributor. This apparatus measures the turbidity of the culturing medium which is pumped into a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Filter feeders; Turbidity sensors.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3625

Sampler bias in the quantitative study of deep-sea meiobenthos
Provedor de dados: 27
Autores: Bett, B.; Vanreusel, A.; Vincx, M.; Soltwedel, T.; Pfannkuche, O.; Lambshead, P.J.D.; Gooday, A.J.; Ferrero, T.; Dinet, A.
The  influence  of  sampler  type  on  quantitative  estimates  of  deep-sea  meiobenthos  is  examined  by  an  indirect  statistical  comparison  of  box  corer  and  multiple  corer  samples  collected  throughout  the  northeast  Atlantic,  and  by  a direct comparison  of  contemporaneously  collected  multiple  corer  and  box  corer  samples  from  a single abyssal location.  The  data  strongly  support the suggestion  that  the greater  down-wash/bow  wave  associated  with  box  corers results  in  displacement  of  surface  sediments  and  any  superficial  detritus  layer  together  with  their  associated  fauna.  Total  metazoan  meiobenthos  density  estimates  from  box  corer  samples  are  about  half  those  from  corresponding  multiple...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/273316.pdf

Characterization of individual giant aerosol particles above the North Sea
Provedor de dados: 27
Autores: Van Malderen, H.; Rojas, C.; Van Grieken, R.
In order to investigate the importance of giant airborne particles, air sampling was carried out using an aircraft which flew at different altitudes over the Southern Bight of the North Sea. A set of 25 samples was collected with a steel rod on top of the airplane. Some 12,500 individual particles were analyzed using electron probe X-ray microanalysis. Principal factor analysis allowed identification of four sources of giant aerosol particles: aluminosilicates, combustion processes, industrial processes, and marine sources. Hierarchical and nonhierarchical cluster analysis enabled us to classify the analyzed particles. A clear distinction was found between flights for which the associated air masses were marine or continental. The experimentally found size...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2887

Diversity of the nematode communities in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Vincx, M.
The nematode communities from 102 stations in the Southern Bight of the North Sea, sampled between 1972 and 1984, are examined. Overall, 456 species, belonging to 159 genera and 37 families were found. Sediment structure and chlorophyll a content were found to be determining environmental factors in the species composition of the nematode communities. Diversity is determined at different levels of the nematode community; &lt;i&gt;i.e&lt;/i&gt;. species diversity of the whole community, species diversity of eight dominant families (Chromadoridae, Comesomatidae, Cyatholaimidae, Desmodoridae, Microlaimidae, Oncholaimidae, Thoracostomopsidae and Xyalidae), species diversity of the four feeding types, family diversity and trophic diversity within the whole...
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7207

Changes in the biochemical composition of the early larval stages of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Benijts, F.; Van Voorden, E.; Sorgeloos, P.
The dried cysts of the brine shrimp &lt;i&gt;Artemia salina&lt;/i&gt; are used all over the world as a most convenient source of live crustacean nauplii which are indispensable for the larval stages of many fishes and crustaceans. With the expansion of mariculture, the demand for the resting eggs of &lt;i&gt;Artemia&lt;/i&gt; has greatly increased and at certain moments of the year it exceeds the offer. Hence it is even more regrettable that in most mariculture farms a considerable wastage of this precious live food occurs: the nauplii are usually hatched in uncontrolled conditions, and the instar stage at which the &lt;i&gt;Artemia&lt;/i&gt; larvae are offered to the predator is not considered and varies from one experiment to another. From fundamental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3531

High-resolution seismic investigation of the evolution (stratigraphy and structure) of the continental margins of the eastern Weddell Sea and of the Antarctic peninsula
Provedor de dados: 27
Autores: De Batist, M.; Henriet, J.-P.; Miller, H.; Moons, A.; Dennielou, B.; Kaul, N.; Maes, E.; Jokat, W.; Schulze, B.; Uenzelmann-Neben, G.; Versteeg, W.
During the ANTARKTIS VIII/5 cruise (December 1989 -March 1990), which was jointly carried out by AWI and RCMG, the seismic grid already available in the Weddell Sea could be expanded with up to 4100 km of high-resolution reflection seismic profiles. The Meso-Cenozoic seismostratigraphic model, originally defined on ODP Site 693 (Leg 113), was extended throughout the existing seismic database along the entire eastern Weddell Sea continental margin. This correlation effort provides some closer time constraints on different stratigraphic units elsewhere in the Weddell Sea, a.o. within the Crary Fan depositional system. A major unconformity (WO&lt;sub&gt;4&lt;/sub&gt;) reflects important erosive and tectonic events at the Meso-Cenozoic boundary, which could be...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8921

Sur la richesse floristique de certains peuplements photophiles infralittoraux de Port-Cros (Var, France)
Provedor de dados: 27
Autores: Coppejans, E.; Boudouresque, C.F.
An account is given of the infralittoral phytobenthos (Rhodophyta, Phaeophyceae, Chlorophyceae) of Port-Cros Island (France). From 2 to 10 m depth, under calm conditions, up to 109 species were listed for each 400 cm² quadrat sample. It must be emphasised that these species numbers are considerable, and that the part played by algae in the photophilous settlements is conspicuous or even dominant.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3519

Tight coupling between enrichment of iron and manganese in North Sea suspended matter and sedimentary redox processes: evidence for seasonal variability
Provedor de dados: 27
Autores: Dehairs, F.A.; Baeyens, W.F.J.; Van Gansbeke, D.
Suspended matter and sediments from the North Sea were analysed for Al, Fe and Mn. A seasonal variation of Mn and Fe over Al ratios is observed. For most of the year suspended matter is enriched in Mn and Fe relative to average soil composition. No enrichment, and even depletion, occurs during a short period of the year (April-May) coinciding with the occurrence of the spring phytoplankton bloom. Surface sediments from the Southern Bight show the inverse image, with Mn and Fe enrichment occurring only in April-May and no enrichment during the rest of the year. These observations suggest a tight coupling between: (1) the change of redox potential in surface sediments, as triggered by the advection of organic matter from the spring bloom; (2) the outflow of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ferromanganese oxides Iron compounds Manganese compounds Redox reactions Seasonal variations Sediment chemistry Suspended load ANE; North Sea.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3010

Trends in nursery rearing of bivalve molluscs
Provedor de dados: 27
Autores: Claus, C.
Nursery rearing of bivalve molluscs, as the intermediate step between the controlled production of larvae in commercial hatcheries and the growout in the wild, is a practice which is receiving more and more attention in mollusc farming. The purpose of nursery rearing of bivalves is to culture cultchless spat of a few millimeters in size, up to 1-2 cm, in a minimum of time, in densities as high as possible, and at minimal costs and risks. In the last decade various technologies for nursery culturing, indoors as well as outdoors, have been developed at different places, ranging from suspended culture in the open sea to controlled onshore culture in upwelling cylinders. This paper reviews the different systems developed until now, with special emphasis on one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimental rearing; Mollusc culture; Bivalvia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3401

Characterization of North Sea aerosols by individual particle analyses
Provedor de dados: 27
Autores: Bruynseels, F.; Storms, H.; Van Grieken, R.; Van der Auwera, L.
On aerosol and rain water samples, collected in the Southern Bight of the North Sea, single particle analyses were performed using both laser microprobe mass analysis and electron-probe X-ray microanalysis in combination with an automated image analysis system.In the aerosols collected from an air mass that had traveled from the Atlantic Ocean along the coast of North France, pure seasalt constituted the most abundant particle type, while aluminosilicates (mostly spherical fly-ash particles) amounted to about 20% and mixed seasalt/aluminosilicates, carbonaceous particles, CaSO&lt;sub&gt;4&lt;/sub&gt; and spherical iron oxides contributed each 5-10%. In air masses that had a longer residence time over the continent, spherical iron oxides, carbonaceous...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols; Rain.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3125

A homage to homology: patterns of copepod evolution
Provedor de dados: 27
Autores: Boxshall, G.; Huys, R.
Lack of attention to determining the homology of character states is recognized as being responsible for the ever increasing numbers of phylogenetic schemes for the Crustacea that appear and disappear so rapidly. Detailed study of musculature. segmentation and setation of the limbs of all 10 orders of copepods revealed numerous phylogenetically informative characters. based on segmental fusion patterns and the presence of individually identified setation elements. Simple counts of limb segments (or of setae) were found to be virtually useless for constructing phylogenies in the copepods. This conclusion can probably be extended to other crustacean groups.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7238

An intercomparison study of the determination of sulfite in tropical shrimps by the West European Fish Technologists' Association (WEFTA)
Provedor de dados: 27
Autores: Luten, J.; Bouquet, W.; Oehlenschläger, J.; Meetschen, U.; Etienne, M.; Stroud, G.; Bykowski, P.; Batista, I.; Vyncke, W.; Stefansson, G.
Eight WEFTA laboratories participated in two series of intercomparison exercises on sulfite determination in tropical shrimps. Samples of tropical shrimps were spiked with sodium metabisulfite (Na&lt;sub&gt;2&lt;/sub&gt;S&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt;) and hydroxymethylsulfonate (HMS) at a level of 25-90 mg SO&lt;sub&gt;2&lt;/sub&gt;/kg. Most of the laboratories determined the sulfite content with (modified) methods of Monier-Williams or De Vries et al. The overall mean recovery of sulfite was rather low (47-60%), which may be attributed to an irreversible reaction of sulfite with the tropical shrimps. The repeatability of the methods within the participating laboratories was good. However, reproducibility among the laboratories was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detection; Fishery products; Food technology; International cooperation; Quality control; Recovery; Shrimp fisheries; Sulphites.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5742

Particulate trace metals above the Southern Bight of the North Sea: 2. Origin and behaviour of the trace metals
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Dedeurwaerder, H.
Ninety-six aerosol samples were collected in all seasons and wind conditions in the troposphere of the Southern Bight of the North Sea. About one third of these samples were collected with a six stage cascade impactor sampler. Considering that in each sample metals were analyzed, the data set we had to handle consisted of about 2000 results. In addition, wind directions and wind speeds are also included in this data set. To interpret all these results, we relied upon two methods: (1) enrichment factors were calculated and allowed us to identify some of the metal sources; (2) three factors resulted from a multivariate analysis method: in the first factor we only find Na, representing the marine component; the second factor includes Al (a crustal and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Air pollution Atmospheric particulates Meteorology Seasonal variations Statistical analysis Trace metals Troposphere Winds ANE; North Sea; Southern Bight.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3109

Behaviour and speciation of mercury in the Scheldt estuary (water sediments and benthic organisms)
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Meuleman, C.; Muhaya, B.; Leermakers, M.
Surface waters, sediments and the polychaete &lt;i&gt;Nereis diversicolor&lt;/i&gt; were sampled in the Scheldt Estuary between 1990 and 1994. In surface waters particulate Hg (Hg&lt;sub&gt;p&lt;/sub&gt;) concentrations ranged from 350-1610 ng g-¹. They are essentially controlled by physical mixing of polluted fluvial particulates with relatively unpolluted marine particulates, but unaffected by seasonal changes. Dissolved Hg species, on the other hand, show large seasonal variations essentially controlled by the redox conditions in the estuary, as well as by bacterial and phytoplankton activity. Total dissolved (Hg&lt;sub&gt;TD&lt;/sub&gt;) concentrations ranged from 0.5 to 3.0 ng l-¹ with 10 to 90% as reactive Hg. High concentrations of...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7047

&lt;i&gt;Plioplatecarpus&lt;/i&gt; (Dollo, 1882). Animal plongeur des grandes profondeurs?
Provedor de dados: 27
Autores: Quinet, G.E.
The thesis of L.Dollo is based on five special arguments:a) Weak dentition b) Orbites turned upwards c) Basioccipital canal and hypoblasilare d) Short torax, strong anterior fin e) Tympanic calcified gill-cover. None of these arguments is valid in an absolute way.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fossils; Mesozoic; Ichthyosauria; Plioplatecarpus.
Ano: 1964
URL: http://www.vliz.be/imisdocs/publications/294271.pdf

Laser microprobe mass analysis of individual North Sea aerosol particles
Provedor de dados: 27
Autores: Dierck, I.; Michaud, D.; Wouters, G.; Van Grieken, R.
Some 6000 individual aerosol particles in the 0.5-4-µm aerodynamic diameter range, collected from an aircraft at different heights above the North Sea, were analyzed using laser microprobe mass analysis (LAMMA). In this way, various well-separated particle types could be defined. Many of these particles appeared to occur as internal mixtures. Several definite trends in particle type abundances as a function of wind direction during sampling and of particle size could be observed. This helped in identifying source processes of the aerosol. Obtaining conclusive results as a function of sampling height, on the other hand was much less straightforward. This is not surprising, since most samples were collected under the inversion layer where extensive mixing is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Air pollution Analytical techniques Lasers ANE; North Sea.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2771

The Tertiary and Quaternary subbottom of the Schelde estuary near Antwerpen (Belgium)
Provedor de dados: 27
Autores: Wartel, S.
The subbottom stratigraphy of the Schelde estuary near Antwerpen was studied using an ORE subbottom profiler. The estuary valley is incised in Tertiary and Quaternary deposits, still eroded at several places. In the Boom Clay (Oligocene) uparching and diapers occur. They result from an unloading erosion surface, dipping roughly NNE and covered unconformably by Miocene (Edegem Sands) and Pliocene (Kattendijk Sands) deposits. The contact between Miocene and Pliocene has not been observed. The lowermost Quaternary deposit consists of a gravel and shell layer irregular in thickness and unconformable with the older deposits. The recent sediment cover, where present, is less than 1 m thick.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuaries Quaternary River beds Tertiary Belgium; Zeeschelde.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3704

Aantallen, verspreiding en ecologie van de broedvogels in de buitendijkse gebieden langs de Zeeschelde = Numbers, distribution and ecology of breeding birds in tidal areas along the Zeeschelde
Provedor de dados: 27
Autores: Van Waeyenberge, J.; Anselin, A.; Meire, P.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Aquatic birds Population characteristics Belgium; Zeeschelde.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/259835.pdf

The use of biomarkers in &lt;i&gt;Daphnia magna&lt;/i&gt; testing: 3. Rapid toxicity testing of pure chemicals and sediment pore waters using ingestion and digestive enzyme activity
Provedor de dados: 27
Autores: De Coen, W.M.; Vangheluwe, M.L.; Janssen, C.R.
In this study, 4 rapid (90 min) toxicity tests were developed using ingestion and digestive enzyme activity of &lt;i&gt;Daphnia magna&lt;/i&gt; juveniles. Ingestion activity was assessed using fluorescent labelled latex micro-beads and digestive enzyme activity (trypsin, beta-galactosidase and esterase) was measured in homogenates using chromogenic (N-benzoyl-L-arginine-4-nitroanilide) and fluorogenic (4-methylumbelliferyl-B-D-galactoside and fluorescein diacetate) substrates.All assays and toxicity endpoints were evaluated for their potential use as routine toxicity testing tools for pure chemicals and sediment pore waters. The observed high correlation coefficients (r(2)&gt;0.9) between the short-term toxicity values and the acute toxicity endpoint (24h...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Assimilation; Assimilation; Exposure; Exposure; Filtration; Respiration; Zooplankton; Daphnia magna; Rotifera.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7488

Pollution in the harbour of Ostend (Belgium): biological and hydrographical consequences
Provedor de dados: 27
Autores: Persoone, G.; De Pauw, N.
1. Ostend, situated in the middle of the Belgian coast, is a typical seaside resort with a population of 60,000 in the winter and up to 200,000 in summer. All sewage (to the major part raw dornestic sewage, to a lesser extent sewage of industrial origin) flows into its harbour, causing a daily in flow of ca. one part of sewage per 100 parts of harbour  water. This heavy pollution load causes significant physico-chemical and biological consequences. 2. The number of "estuarine" bacteria has increased enormously due to the great daily input of organic matter. The number of coliform bacteria is high; it decreases towards the seaward entrance of the harbour. 3. The beach in the small vicinity of the harbour is polluted. 4. The harbour water contains low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Harbours Pollution ANE; Belgium; Oostende Harbour.
Ano: 1968
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3438

Effect of dietary phosphatidylcholine on growth and lipid composition of post-larval &lt;i&gt;Penaeus vannamei&lt;/i&gt; (Boone)
Provedor de dados: 27
Autores: Camara, M.R.; Coutteau, P.; Sorgeloos, P.
Dietary phospholipids and particularly phosphatidylcholine have been found to enhance growth and survival in penaeid shrimp, an effect which has been attributed to their limited ability to synthesize phospholipids de novo. However, most of the studies made so far have used low purity phospholipids and therefore, precise requirements for dietary phosphatidylcholine among several species of shrimp have been difficult to establish.As part of a broad study which aims to study lipid nutrition in penaeid shrimp, the dietary effect of purified phosphatidylcholine (PC) on growth, survival, stress resistance and body lipid composition of post-larval &lt;i&gt;Penaeus vannamei&lt;/i&gt; fed semi-purified microbound diets was evaluated. Changes on the body lipid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus vannamei.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2532

Projekt Zee eindverslag: 5. Dispersie modellen = Projet Mer rapport final: 5. Modèles de dispersion
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Adam, Y.A.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6087

Meccanismi di Evoluzione del Cariotipo nei Monocelididi (Turbellaria Proseriata)
Provedor de dados: 27
Autores: Curini-Galletti, M.C.; Martens, P.M.; Puccinelli, I.
Mechanisms of karyotype evolution in the Monocelididae (&lt;i&gt;Turbellaria Proseriata&lt;/i&gt;). Within the Proseriata (Turbellaria: Seriata), the family Monocelididae displays several interesting patterns of chromosomal evolution. A basic set of n = 3 -made up or one large metacentric, one medium-sized metacentric and one small clearly heterobrachial chromosome -has been detected. It is widely distributed in species pertaining to both the subfamilies in which the Monocelididae are subdivided. From this basic set, other complements -either with n = 3 or n &gt; 3 -would be originated.Several karyological mechanisms or common occurrence within the family (translocations, small chromosome rearrangements involving the centromere, genome growth) have been...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monocelididae.
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/276721.pdf

Spindotters in het Schelde-estuarium
Provedor de dados: 27
Autores: Hoffmann, M.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7633

Stijgende aantallen finten in de Zeeschelde
Provedor de dados: 27
Autores: Maes, J.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280710.pdf

Science and conservation in whale strandings: the role of the public authorities
Provedor de dados: 27
Autores: Jacques, T.
Whale strandings convey a great deal of information on the complex factors that affect the survival of cetacean species. International law protects cetaceans, and governments have committed themselves to conserve populations, to support research and to organise the scientific response to stranding events. In Belgium, a number of research units, public services and volunteers have been organized into an intervention network to deal with stranded animals. The practical difficulties are many and can only be overcome through good co-ordination, rapid response and full co-operation of experts in various fields. Though much progress has been achieved in the right direction, many problems remain to be solved. As was made obvious with the stranding of four sperm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disaster management; Stranding; Whales; Whales.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303627.pdf

The effect of DHA/EPA ratio in live feed on the fatty acid composition, survival, growth and pigmentation of turbot larvae &lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.
Provedor de dados: 27
Autores: Curé, K.; Gajardo, G.; Coutteau, P.
A set of experiments was designed to understand the effect of standardized enrichment diets on the fatty acid composition and culture performance of turbot larvae reared using the food chain rotifers -freshly hatched &lt;i&gt;Artemia&lt;/i&gt; nauplii- enriched &lt;i&gt;Artemia&lt;/i&gt; . Rotifers were fed on experimental diets of similar total n-3 HUFA content (34-39 mg/g DW) but different DHA/EPA ratio (0.7, 2.6 and 5.5). DHA/EPA ratio in &lt;i&gt;Artemia&lt;/i&gt; was manipulated by 24-h enrichment with an emulsion with either a high or low DHA/EPA ratio (respectively, 4.0 and 0.7). Results produced by three experiments showed that the n-3 HUFA composition of the rotifers (DHA/EPA 0.7-2.2) was a reflection of the diet composition, which in turn...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acids Growth Live feed Survival Scophthalmus maximus (Linneaus; 1758).
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2952

On the morphology and karyology of the genus &lt;i&gt;Archilopsis&lt;/i&gt; (Meixner) (Platyhelminthes, Proseriata)
Provedor de dados: 27
Autores: Martens, P.M.; Curini-Galletti, M.C.; Puccinelli, I.
Two new &lt;i&gt;Archilopsis&lt;/i&gt; species are described: &lt;i&gt;Archilopsis marifuga&lt;/i&gt; sp. n. and &lt;i&gt;Archilopsis arenaria&lt;/i&gt; sp. n.; &lt;i&gt;Archilopsis unipunctata&lt;/i&gt; (Fabricius, 1826) and &lt;i&gt;Archilopsis spinosa&lt;/i&gt; (Jensen, 1878) are redescribed. The latter taxon is re-established. The descriptions are based on morphological and karyological data. The four species of the genus can unequivocally be recognized by the morphology of the cirrus and the presence or absence of a stylet.The genus &lt;i&gt;Archilopsis&lt;/i&gt; is regarded as a monophyletic group with at least two autapomorphies. The relationship between the four species is discussed and a cladogram for the genus proposed. The existence of two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Karyology Phylogeny Archilopsis Platyhelminthes Proseriata ANE; Belgium; Belgian Coast ANE; Belgium; Zwin ANE; France; North ANE; Netherlands; Dutch Coast Belgium; Het Zwin natuurreservaat.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3186

Paramétrisation, calibrage et ajustement du modèle. Application à la mer du Nord et au Southern Bight
Provedor de dados: 27
Autores: Nihoul, J.C.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266897.pdf

Analyse van het ecosysteem van de Noordzee: kompartiment pelagische vissen
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Polk, Ph.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/294647.pdf

Bijdrage tot de kennis der mariene fauna van de Belgische kust: 2. Waarnemingen aangaande het voorkomen en de voortplanting van &lt;i&gt;Botryllus schlosseri&lt;/i&gt; (Pallas, 1766)
Provedor de dados: 27
Autores: Polk, P.
The Tunicate &lt;i&gt;Botryllus schlosseri&lt;/i&gt; (Pallas) was observed for the first time in the sluice-dock (Bassin de Chasse) of Ostend during the year 1960. This species was probably imported into Belgium together with spat from Zealand (Holland). During the year the species has spread and multiplied extensively. This species can therefore be considered as belonging to the Belgian marine fauna. The sexual reproduction and settling of new colonies took place during the months of August, September, October and November. During those months a settling of 98% was observed on the test surfaces in the immediate vicinity of the infected oysters. About 1 km from this locality in the Bassin de Chasse, where no infected oysters were found, a settling of only...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oyster culture Parasites Botryllus schlosseri (Pallas; 1766) ANE; Belgium.
Ano: 1962
URL: http://www.vliz.be/imisdocs/publications/241948.pdf

Vertical distribution of nitrate concentration in interstitial water of marine sediments with nitrification and denitrification
Provedor de dados: 27
Autores: Vanderborght, J.P.; Billen, G.
Vertical concentration profiles of nitrate in interstitial water of sediment in the Sluice Dock at Ostend (Belgium) commonly show a maximum in nitrate concentration at a few centimeters depth where sediments are sandy and poor in organic matter, while in muddy and organic-rich sediments, nitrate is lower in interstitial water than in the overlying water and decreases rapidly with depth. Direct measurements of the activity of autotrophic nitrifying bacteria in the sediments show nitrification in the upper few centimeters of sandy sediments but not in muddy sediments. A mathematical model is proposed to analyze quantitatively these experimental results, taking into account nitrification, denitrification, diffusion, and sedimentation. Seasonal variations of...
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3524

Paratenic hosts of the swimbladder nematode &lt;i&gt;Anguillicola crassus&lt;/i&gt;
Provedor de dados: 27
Autores: Thomas, B.; Ollevier, F.P.
The host specificity and population dynamics of &lt;i&gt;Anguillicola crassus&lt;/i&gt; in a number of paratenic hosts were investigated. Various freshwater fish species were sampled monthly (March 1990 to March 1991) from the Kolenhaven (Albertcanal, Genk, Belgium) and examined for L&lt;sub&gt;3&lt;/sub&gt;-larvae of &lt;i&gt;Anguillicola crassus&lt;/i&gt;. Sixteen species were found to be infected: all the physoclist species examined (&lt;i&gt;Gymnocephalus cernua, Lepomis gibbosus, Ictalurus nebulosus, Stizostedion lucioperca, Gasterosteus aculeatus, Oreochromis niloticus&lt;/i&gt; and &lt;i&gt;Perca fluviatilis&lt;/i&gt;) and those physostome species of which a sufficient number could be examined to detect the infection (&lt;i&gt;Gobio gobio, Leuciscus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Endoparasites; Freshwater fish; Hosts; Introduced species; Parasites; Population dynamics; Specificity; Swim bladder; Anguillicola crassus; Pisces [Fish].
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/299068.pdf

When &lt;i&gt;m&lt;/i&gt;-selection?
Provedor de dados: 27
Autores: Bergmans, M.
Caswell and Hastings (1980) introduced an explicit model for the relative merits, in terms of growth rate &lt;i&gt;lambda&lt;/i&gt;, of developmental shifts vs. fecundity increases. Some aspects of their model are clarified by concentrating on the (fitness &gt;1) half-plane rather than on the (accelerated reproduction) half-plane. There is no strict equivalence between Caswell and Hastings' key parameter &lt;i&gt;lambda/P&lt;/i&gt; and the dynamic behaviour of the population which is governed by &lt;i&gt;lambda&lt;/i&gt;. Thus in some stationary/declining populations time shifts of reproduction (forward or backward, according to the value of &lt;i&gt;lambda/P&lt;/i&gt;) are just as effective in promoting a high &lt;i&gt;lambda&lt;/i&gt; as they are in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Population parameters.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3364

Observations biologiques dans le port d'Ostende
Provedor de dados: 27
Autores: Lefevere, S.; Leloup, E.; Van Meel, L.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Biology Ecology Harbours ANE; Belgium; Oostende Harbour.
Ano: 1956
URL: http://www.vliz.be/imisdocs/publications/311007.pdf

Deep-water Hydromedusae from the Lacaze-Duthiers submarine canyon (Banyuls, northwestern Mediterranean) and description of two new genera (&lt;i&gt;Guillea&lt;/i&gt; and &lt;i&gt;Parateclaia&lt;/i&gt;)
Provedor de dados: 27
Autores: Bouillon, J.; Pagès, F.; Gili, J.-M.; Palanques, A.; Puig, P.; Heussner, S.
Several species of hydromedusae are reported from material collected by sediment traps placed in the Lacaze-Duthiers submarine canyon, off Banyuls (north-western Mediterranean). Two new taxa &lt;i&gt;Guillea canyonincolae&lt;/i&gt; gen. nov. et sp. nov, and &lt;i&gt;Parateclaia euromarge&lt;/i&gt; fam. nov., gen. nov. et sp. nov., are described. The existence of highly-specific hydromedusa populations in other Mediterranean canyons which appear to be related via geological history, topography, hydrographic and ecological features peculiar to each canyon, is discussed in relation to these new records.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Guillea canyonincolae; Hydromedusae; Parateclaia euromarge.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/232623.pdf

Copepod biomass in an estuarine and a stagnant brackish environment of the S.W. Netherlands
Provedor de dados: 27
Autores: Bakker, C.; Phaff, W.J.; van Ewijk-Rosier, M.; De Pauw, N.
In the mesohaline zone of the Westerschelde estuary &lt;i&gt;Eurytemora affinis&lt;/i&gt; is the dominant copepod, demonstrating large biomass values nearly throughout the year. In the meso-polyhaline Lake Veere &lt;i&gt;Acartia tonsa&lt;/i&gt; is abundant, mainly during summer. In spring a small population of &lt;i&gt;Eurytemora americana&lt;/i&gt; is found. The tidal estuary harboured far denser copepod populations throughout the year than the stagnant brackish lake water. The average yearly copepodid + adult biomass in the Westerschelde estuary was approx. 850 mg/m³ (wet weight), in Lake Veere approx. 130 mg/m³. Temporarily low oxygen values did not influence negatively the copepod populations in the Westerschelde estuary. The seasonal distribution of...
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3560

Studies on the Cylindropsyllidae (Copepoda, Harpacticoida): 1. The status of &lt;i&gt;Leptastacus laticaudatus&lt;/i&gt; Nicholls
Provedor de dados: 27
Autores: Huys, R.
&lt;i&gt;Leptastacus laticaudatus&lt;/i&gt; Nicholls, 1935, commonly found interstitially in fine sands of European boreal waters, is redescribed and figured. As a result, the subspecies names &lt;i&gt;L. laticaudatus laticaudatus&lt;/i&gt; and &lt;i&gt;L. laticaudatus intermedius&lt;/i&gt; Kunz, 1983 are nullified. Some variable characters, i.e. caudal rami and structure of the fifth leg, are discussed and the distribution of the species is summarized. The most closely allied species &lt;i&gt;L. macronyx&lt;/i&gt; (T. Scott, 1892) and &lt;i&gt;L. spatuliseta&lt;/i&gt; Mielke, 1982 constitute, together with &lt;i&gt;L. laticaudatus&lt;/i&gt;, the 'macronyx-group'. &lt;i&gt;L. laticaudatus intermedius sensu&lt;/i&gt; Apostolov, 1973 is considered...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy Cylindropsyllidae Leptastacus laticaudatus Nicholls; 1935.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3255

Hydroidomedusae de l'Institut royal des Sciences naturelles de Belgique
Provedor de dados: 27
Autores: Bouillon, J.; Massin, C.; Kresevic, R.
Non siphonophoran hydrozoans from the collections of the RBINS, including 769 species, are presented according to the most current use in the actual literature. These collections house type material of 66 nominal species and varieties. For each species, and whenever possible, the locality, the reference number in the collection, the number of specimens, of colonies and of microscopic slides, the mode of preservation (alcohol, formalin, dry) and the date of collecting are given.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Taxonomy; Hydroidomedusae.
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/276389.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt; : 30. Bio-economic evaluation of the nutritional value for carp (&lt;i&gt;Cyprinus carpio&lt;/i&gt; L.) larvae of nine &lt;i&gt;Artemia&lt;/i&gt; strains
Provedor de dados: 27
Autores: Vanhaecke, P.; Sorgeloos, P.
The nutritional value of fresh hatched nauplii from nine geographical strains of brine shrimp, &lt;i&gt;Artemia&lt;/i&gt; , was determined for larvae of the carp (&lt;i&gt;Cyprinus carpio&lt;/i&gt;). After 2 weeks of culture, the survival of carp larvae was over 90% and no significant differences in survival among treatments were detected. The growth rate of the larvae, however, was a function of the &lt;i&gt;Artemia&lt;/i&gt; strain used. The highest weight gains were recorded with parthenogenetic &lt;i&gt;Artemia&lt;/i&gt; , to the lowest with Chaplin Lake brine shrimp and intermediate results with the other bisexual strains. With the exception of the Chaplin lake strain, the growth results were positively correlated with the size and weight of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed efficiency; Nutritional requirements; Artemia; Cyprinus carpio.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/261900.pdf

International study on &lt;i&gt;Artemia&lt;/i&gt; : 29. Nutritional evaluation of &lt;i&gt;Artemia&lt;/i&gt; nauplii from different geographical origin for the marine crustacean &lt;i&gt;Mysidopsis bahia&lt;/i&gt;
Provedor de dados: 27
Autores: Léger, P.; Sorgeloos, P.
Freshly hatched nauplii from reference &lt;i&gt;Artemia&lt;/i&gt; and from 3 other &lt;i&gt;Artemia&lt;/i&gt; strains were tested for their effects on survival, growth and reproductive characteristics of the crustacean &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (M.). The reference, French (Lavalduc) and Chinese (Tientsin) strains produced significantly better results for all criteria tested than the Canadian strain (Chaplin Lake). Results are discussed together with those reported for other predators.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nauplii; Artemia; Mysidopsis bahia.
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/261918.pdf

The littorinid fauna of the Belgian coast (Mollusca, Gastropoda)
Provedor de dados: 27
Autores: Warmoes, T.; Backeljau, T.; De Bruyn, L.
During an intensive survey of the littorinid fauna of the Belgian coast, five species were recorded alive, viz. &lt;i&gt;Littorina littorea, L. saxatilis, L. obtusata, L. mariae&lt;/i&gt; and &lt;i&gt;L. neglecta&lt;/i&gt;. The latter two of these are new to the Belgian fauna, but they occur only in very restricted populations. &lt;i&gt;L. obtusata&lt;/i&gt; shows a local distribution, whereas &lt;i&gt;L. littorea&lt;/i&gt; and &lt;i&gt;L. saxatilis&lt;/i&gt; are both very common. For each species occuring in Belgium, detailed information on distribution, habitat and polymorphism is provided. Finally some topics for further research are outlined.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution Taxonomy Littorina littorea (Linnaeus; 1758) [Common periwinkle] Littorina mariae Sacchi &amp; Rastelli; 1966 [flat periwinkle] Littorina neglecta Bean; 1844 Littorina obtusata (Linnaeus; 1758) Littorina saxatilis (Olivi; 1792) [Rough periwinkle] ANE; Belgium; Belgian Coast.
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/141461.pdf

The toxicity of mercury on the free-living marine nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt; Bastian, 1865
Provedor de dados: 27
Autores: Vranken, G.; Vanderhaeghen, R.; Van Brussel, D.; Heip, C.H.R.; Hermans, D.
The influence of the mercury compounds Hg&lt;sub&gt;2&lt;/sub&gt;Cl&lt;sub&gt;2&lt;/sub&gt;, HgCl&lt;sub&gt;2&lt;/sub&gt;, and CH&lt;sub&gt;3&lt;/sub&gt;HgCl as measured by egg mortality, preadult mortality, and development time, was studied on the marine nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt;. A significant influence on egg, juvenile, and preadult mortality was observed for Hg&lt;sub&gt;2&lt;/sub&gt;Cl&lt;sub&gt;2&lt;/sub&gt; and HgCl&lt;sub&gt;2&lt;/sub&gt;, while CH&lt;sub&gt;3&lt;/sub&gt;HgCl did not cause egg mortality. It was concluded that the juvenile mortality is the most sensitive index for the chronic stress. No apparent changes in the development time occurred. The acute toxicity of the above mentioned mercury compounds, measured as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mercury; Toxicity; Monhystera disjuncta.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3277

Live food mediated drug delivery as a tool for disease treatment in larviculture: a case study with turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt;
Provedor de dados: 27
Autores: Chair, M.; Dehasque, M.; Sorgeloos, P.; Nelis, H.; De Leenheer, A.P.
With the advent of intensive culture practices, occurrences of mass mortality caused by bacterial infections are commonplace. High doses of antibiotics or antibacterials are used in aquaculture by adding them to the water. Problems of palatability and leaching occur when the chemotherapeutic agents are incorporated in feeds. To circumvent these problems &lt;i&gt;Artemia&lt;/i&gt; can be used as a carrier. In this study we assess the efficacy of cotrimoxazole in the oral treatment of turbot larvae challenged with a pathogenic strain of Vibrio anguillarum encapsulated in &lt;i&gt;Artemia&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758).
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2536

International study on &lt;i&gt;Artemia&lt;/i&gt;: 49. Salinity effects on survival, maturity, growth, biometrics, reproductive and lifespan characteristics of a bisexual and a parthenogenetic population of &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Triantaphyllidis, G.V.; Poulopoulou, K.; Abatzopoulos, T.J.; Pinto Pérez, C.A.; Sorgeloos, P.
Two &lt;i&gt;Artemia&lt;/i&gt; populations, a bisexual from San Francisco Bay (California, USA) and a parthenogenetic from Tanggu area (Tianjin province, People's Republic of China) are assayed for their tolerance and fitness in various salinity levels. This study was carried out under laboratory conditions where salinity effects upon special characteristics of the two &lt;i&gt;Artemia&lt;/i&gt; populations, such as survival, growth rate, maturation, morphology, fecundity and life duration, were recorded. This evaluation revealed that the two populations examined exhibit significant differences in their response against elevated salinity levels. Furthermore, specific biometric parameters can be a useful tool for the discrimination and/or determination of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2639

On the distribution of &lt;i&gt;Eurytemora affinis&lt;/i&gt;(Poppe) (Copepoda) in the Western Scheldt estuary
Provedor de dados: 27
Autores: De Pauw, N.
In the Scheldt estuary, &lt;i&gt;E. affinis&lt;/i&gt; appeared place-bound, dependent on a direct import from quiet breeding-places in connection with the main stream as in the case of mud-flat-saltmarch systems and on an indirect import as in the case of harbours and sluice-docks. This import explains the place-bound presence in different geographically separated places along the axis of the estuary and its presence at different chlorinities, varying between sea and freshwater (17.9-0.071 promille Cl&lt;sup&gt;-&lt;/sup&gt;). The stream itself did not appear to have its "own" autochthonous population. The facts tend to prove that besides physical characteristics of the system, such as the estuarine circulation and the salinity-distribution, the...
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3484

Five new species of deep-sea desmoscolecids (Nematoda - Desmoscolecida) from the Bay of Biscay
Provedor de dados: 27
Autores: Decraemer, W.
The present paper deals with a study of desmoscolecids found in deep-sea samples from the Bay of Gascony. Five new species are described: &lt;i&gt;Desmoscolex multiannulatus&lt;/i&gt;, &lt;i&gt;D. paralongistosus&lt;/i&gt;, &lt;i&gt;D. segonzaci&lt;/i&gt;, &lt;i&gt;D. macrophasmatus&lt;/i&gt; and &lt;i&gt;Quadricoma gascognensis&lt;/i&gt;. &lt;i&gt;Desmolorenzenia longicauda&lt;/i&gt; (Timm, 1970) Freudenhammer, 1975 is synonymous with &lt;i&gt;D. eurycricus&lt;/i&gt; (Filipjev, 1922) Freudenhammer, 1975 and &lt;i&gt;Quadricoma iberica&lt;/i&gt; Freudenhammer, 1975 is synonymous with &lt;i&gt;Q. brevichaeta&lt;/i&gt; Freudenhammer, 1975.
Tipo: Info:eu-repo/semantics/article
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/303466.pdf

The influence of inorganic and organic pollutants on the rate of reproduction of a marine hypotrichous ciliate: &lt;i&gt;Euplotes vannus&lt;/i&gt; Muller
Provedor de dados: 27
Autores: Persoone, G.; Uyttersprot, G.
Within the Belgian interdisciplinary research program "Mathematical model of the North-Sea", experiments are being carried out in order to determine the toxicity of various inorganic and organic compounds on marine pelagic and benthic organisms. Several concentrations of 5 heavy metal ions, 5 common pesticides and one PCB have been tested. The present report concerns the effect of lead, copper, mercury, zinc and cadmium ions, as well as DDT, DDE, hexachlorobenzene, heptachlor, hexachlorcyclohexane and Aroclor ® 1245, on the rate of reproduction of a common marine hypotrichous ciliate: &lt;i&gt;Euplotes vannus&lt;/i&gt; Muller. Among the heavy metals tested mercury is the most toxic: total inhibition at the 1 ppm level; copper gives a 50 % inhibition at 1...
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3503

A comparative study on the use of different preparations of decapsulated &lt;i&gt;Artemia&lt;/i&gt; cysts as food for rearing African catfish (&lt;i&gt;Clarias gariepinus&lt;/i&gt;) larvae
Provedor de dados: 27
Autores: Pector, R.; Tackaert, W.; Abelin, P.; Ollevier, F.P.; Sorgeloos, P.
African catfish (&lt;i&gt;Clarias gariepinus&lt;/i&gt;) larvae were fed on five preparations of decapsulated Great Salt Lake &lt;i&gt;Artemia&lt;/i&gt; cysts: 1) dried (35°C, 6 h) and UV-irradiated cysts; 2) heated cysts (80°C, 10 min); 3) brine dehydrated and UV irradiated cysts; 4) micro-bound diet 1(with intact decapsulated cysts used in diet preparation 1); and 5) micro-bound diet 2 (with crushed and shifted decapsulated diet used in diet preparation 1). The larvae were fed from the first day after yolk-sac resorption (fourth day after hatching). After a 14-d rearing period, larvae fed on dried or heated decapsulated cysts or micro-bound diet 1. Feeding micro-bound diet 2 resulted in a significantly lower average gain in weight as compared to the other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia; Clarias gariepinus.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2660

Barite formation in the Southern Ocean water column
Provedor de dados: 27
Autores: Stroobants, N.; Dehairs, F.A.; Goeyens, L.; Vanderheijden, N.; Van Grieken, R.
The intensity of past biological activity can be correlated with the occurrence of suspended and sedimented barite (BaSO&lt;sub&gt;4&lt;/sub&gt;). To date, there is a lack of information on the processes controlling the production of pelagic barite. During the EPOS-2 cruise (November-December 1988), situated in the Scotia Sea-Weddell Sea Confluence, suspended water samples were taken for analysis of total Ba by inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and for scanning electron microscopy-electron microprobe (SEM-EMP).The vertical profiles of particulate barium generally show a Ba maximum between 200 and 500 m. SEM-EMP investigation on Scotia-Weddell Sea Confluence profiles provide a possible explanation for the origin of this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2865

Chemical characterization and source apportionment of individual aerosol particles over the North Sea and the English Channel using multivariate techniques
Provedor de dados: 27
Autores: Xhoffer, C.; Bernard, P.; Van Grieken, R.; Van der Auwera, L.
More than 25,000 individual aerosol particles in 51 particulate matter samples, all taken from a research vessel over the North Sea and the English Channel, in a time range of 4 years, were analyzed by automated electron probe X-ray microanalysis (EPXMA). Multivariate methods were used to reduce the total data set. Single-particle analysis combined with hierarchical cluster analysis yields nine major particle types. The North Sea aerosol is predominantly composed of sea salt, sulfur-rich particles, silicates and calcium sulfate particles. Their abundance is dependent on meteorological conditions and sample location. Differences between all samples were studied on the basis of the abundance variations by using principal component analysis. Three factors...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2915

Ecological problems of a nuclear power station: a basis for comparing offshore sites
Provedor de dados: 27
Autores: Van Broekhoven, L.; Bastin, A.; Lefevere, S.J.
Seven possible sitings of a nuclear power station on the Belgian coast, or offshore, were postulated and compared in 1975 in a technology assessment approach. In addition, a more detailed ecological case-study was made for one of these seven sites. An ecological (biological, sedimentological and geophysical) inventory was compiled together with evaluation of possible effects of the warm water outfall in the particular area. To facilitate a more accurate prediction model, and an eventual control of all ecological influences, a series of continuous and comprehensive survey programmes are needed over several years.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nuclear power plants Offshore structures ANE; Belgium; Belgian Coast.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3356

Free-living marine nematodes from the Southern Bight of the North Sea: II. Notes on species of the Trefusiidae Gerlach
Provedor de dados: 27
Autores: Vincx, M.; Vanreusel, A.
Three species of the Trefusiidae Gerlach, 1966 are described from the Southern Bight of the North Sea.&lt;i&gt;Trefusia litoralis&lt;/i&gt; (Allgén, 1932) is redescribed and information is given on the intraspecific variation.&lt;i&gt;Trefusia curvispiculosa&lt;/i&gt; sp.nov. is characterized by its typically curved spicular apparatus, up to now not found in other &lt;i&gt;Trefusia&lt;/i&gt; species.&lt;i&gt;Rhabdocoma riemanni&lt;/i&gt; Jayasree &amp; Warwick, 1977 is synonymized with &lt;i&gt;Rhabdocoma americana&lt;/i&gt; Cobb, 1920 and that species is redescribed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhabdocoma americana; Rhabdocoma riemanni; Trefusia; Trefusia curvispiculosa; Trefusia litoralis; Trefusiidae.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7109

Microlayer metal excesses in a coastal North Sea area: relative contribution of dry fall-out
Provedor de dados: 27
Autores: Dehairs, F.A.; Dedeurwaerder, H.; Decadt, G.; Baeyens, J.; Gillain, G.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; North Sea.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10067

Determination of barium in sea water by cation-exchange separation and electrothermal atomic absorption spectrometry
Provedor de dados: 27
Autores: Dehairs, F.A.; Hoenig, M.; De Bondt, M.; Baeyens, J.; Van Den Winkel, P.
A method is described for the routine determination of barium in sea water by graphite-furnace atomic absorption spectrometry. Barium is separated from the main seawater cations by collection on a cation-exchange resin. The barium is extracted into nitric acid from a portion of the resin for injection into the pyrolytically-coated graphite furnace. The method is satisfactory for the low µg l&lt;sup&gt;-1&lt;/sup&gt; levels of barium present in ocean water, with recoveries more or equal to 99% and a relative standard deviation of &lt;5%.
Tipo: Info:eu-repo/semantics/article
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3168

De diversiteit van nematodengemeenschappen en het kompetitief exclusiebeginsel
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6963

Ammonium regeneration in the Scotia-Weddell Confluence area during spring 1988
Provedor de dados: 27
Autores: Goeyens, L.; Tréguer, P.; Lancelot, C.; Mathot, S.; Becquevort, S.; Morvan, J.; Dehairs, F.A.; Baeyens, W.F.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/279128.pdf

Bodemdieren langsheen estuariene gradiënten
Provedor de dados: 27
Autores: Ysebaert, T.; Herman, P.M.J.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280704.pdf

A model of nematode dynamics in the Westerschelde Estuary
Provedor de dados: 27
Autores: Li, J.; Vincx, M.; Herman, P.M.J.
We developed a time dynamic model to investigate the temporal dynamics of nematode community in the brackish zone of the Westerschelde Estuary. The biomass of four nematode feeding groups observed from March 1991 to February 1992 is used to calibrate the model. Using environmental data as the input, the model predicts the temporal modification and interrelation of four nematode feeding groups. Nematodes achieve a dominant position in the community because of their lower loss rate (in respiration, excretion and natural death). Predators which are deposit-feeding macrobenthos control the variations of dominant nematodes, such as omnivores and non-selective deposit feeders. Food availability causes modification only for rare nematodes such as epigrowth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diatoms; Ecology; Food; Light; Marine nematodes; Meiobenthos; Population dynamics; Predation; Respiration; Temperature; Nematoda [Nematodes].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7284

Evaluation of mono- and mixed diets as food for intensive &lt;i&gt;Artemia&lt;/i&gt; culture
Provedor de dados: 27
Autores: Lavens, P.; De Meulemeester, A.; Sorgeloos, P.
In order to alleviate the problems encountered when using live algae or rice bran as &lt;i&gt;Artemia&lt;/i&gt; food in intensive culturing, different alternative types of brine shrimp diets have been evaluated. Using a high-density flow-through recirculation culture system, a Single Cell Protein yeast and mixed diets, consisting of this yeast and micronized waste products from agricultural corps, were selected as suitable &lt;i&gt;Artemia&lt;/i&gt; feeds.Production yields after 2 weeks culturing varied from 2 to 5 kg live weight brine shrimp biomass per culture tank of 300 l. The mixed diets corn/soybean, corn/ wheat husks, and corn/yeast were found to be suitable or even better alternatives for the rice bran diet which is commonly used for feeding...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3173

A budget of carbon cycling in the Belgian coastal zone: relative roles of zooplankton, bacterioplankton and benthos in the utilization of primary production
Provedor de dados: 27
Autores: Joiris, C.R.; Billen, G.; Lancelot, MH.; Daro, M.H.; Mommaerts, J.-P.; Bertels, A.; Bossicart, M.; Nijs, J.; Hecq, J.H.
The various biological compartments of the Belgian coastal zone of the North Sea were studied since 1971. The synthesis of available data on carbon cycling includes phytoplankton biomass and activities (particulate and dissolved primary production, respiration) , zooplankton biomass and activities (grazing, respiration) and planktonic and benthic microbial heterotrophic activities. These various carbon flux estimates allow the development of an overall budget of carbon cycling. This budget shows the importance of microbial (planktonic and benthic) heterotrophs versus zooplankton in the utilization of primary production. Comparison with literature data suggests that this could be a general feature of coastal, as opposed to open sea ecosystems.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6908

&lt;i&gt;Dicrotrichura tricincta&lt;/i&gt; gen. et spec. nov.: a new tantulocaridan (Crustacea: Maxillopoda) from the Mediterranean deep waters off Corsica
Provedor de dados: 27
Autores: Huys, R.
The new genus and species, Dicrotrichura tricincta, is described from deep mud (1220 m) in the Ligurian Sea (western Mediterranean). It is the first tantulocaridan not found to be attached to a crustacean host but free living in the sediment. It is assigned to the Deoterthridae on the basis of the absence of a rostrum, the abdominal segmentation and the characteristic cephalic pore pattern. It can be distinguished from all known tantulocaridans in the presence of peculiar, bi-articulated caudal setae and the difference in thoracopodal setation between leg 2 and legs 3-5. Some new structures located on the attachment disc are described for the first time. D. tricincta is the second tantulocaridan to be recorded from the Mediterranean.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea [crustaceans]; Dicrotrichura trincta; Maxillopoda.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7078

Vertical distribution of meiofauna and the efficiency of the Van Veen grab on sandy bottoms in lake Grevelingen (the Netherlands)
Provedor de dados: 27
Autores: Heip, C.H.R.; Willems, K.A.; Goossens, A.
Comparison of density estimates of Nematoda and Harpacticoida obtained by a Van Veen grab and SCUBA diving from a sandy sediment in shallow water shows that Harpacticoida are sampled efficiently with the grab but Nematoda are not. For the Nematoda, total density is underestimated and the relative abundance of surface-dwellers is overestimated. Samples obtained with a Van Veen grab from which the material is collected in a bucket and subsampled afterwards have a much smaller statistical variability than samples obtained with other methods.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bottom sampling Meiofauna Vertical distribution ANE; Netherlands; Grevelingen L.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3570

Automation of live food in industrial hatcheries: zootechnics and economics
Provedor de dados: 27
Autores: Dehasque, M.; Ooghe, B.; Wille, M.; Candreva, P.; Cladas, Y.; Lavens, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2547

Spatial patterns of Westerschelde meiobenthos
Provedor de dados: 27
Autores: Soetaert, K.; Vincx, M.; Wittoeck, J.; Tulkens, M.; Van Gansbeke, D.
The meiobenthic fauna of the Westerschelde, a highly polluted and physically disturbed estuary in the south-west Netherlands, was investigated. Samples were taken in spring from six transects, including the intertidal, subtidal and channel area, and located along the salinity gradient. The samples were subdivided into slices to examine the vertical distribution of meiobenthos. Meiobenthos densities were higher in the intertidal than in most permanently submersed areas; the subtidal sites below 7 salinity were nearly devoid of meiobenthic life. Nematodes were by far the most abundant meiobenthic organisms in the intertidal, but were less dominant in the other areas. Gastrotrichs, turbellarians, copepods and large ciliates were usually more numerous in the...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8461

Schelde: rivier zonder grenzen
Provedor de dados: 27
Autores: Voiturier, M.; Meire, P.
Tipo: Info:eu-repo/semantics/book
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6768

Distribution and adaptations of sea ice inhabiting &lt;i&gt;Harpacticoida&lt;/i&gt; (Crustacea, Copepoda) of the Weddell Sea (Antarctica)
Provedor de dados: 27
Autores: Dahms, H.-U.; Bergmans, M.; Schminke, H.K.
Seven harpacticoid species were found to be associated with sea ice collected during 5 Antarctic cruises of the &lt;i&gt;RV Polarstern&lt;/i&gt;. Their distribution within the fast ice and pack ice zones of the Weddell Sea is presented. Whereas some individuals probably become entrapped into the ice only accidentally, at least 4 species are genuinely sympagic. These have evolved remarkable adaptations, as evidenced by field and laboratory studies of &lt;i&gt;Drescheriella glacialis&lt;/i&gt;, which is by far the most abundant. Such adaptations include: the ability to penetrate deep into ice; a comparatively high salinity tolerance allowing it to endure large salinity fluctuations associated with ice crystal formation and melting; good swimming ability,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeography Dormancy Ecology Life history Salinity tolerance Harpacticoida PSW; Weddell Sea.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3067

Summer distribution and ecological role of seabirds and marine mammals in the Norwegian and Greenland seas (June 1988)
Provedor de dados: 27
Autores: Joiris, C.R.
During the ARK V/2 expedition of RV &lt;i&gt;Polarstern&lt;/i&gt; in the Norwegian and Greenland seas in June 1988, 380 half hour counts for marine vertebrates (seabirds, pinnipeds and cetaceans) were carried out. Results are presented as total numbers encountered and then converted into density and food intake. Mean food intake was 2.2 kg fresh weight per km&lt;sup&gt;2&lt;/sup&gt; per day for seabirds, with a higher value in Atlantic water (2.5) lower values in polar water and the pack ice (1.7 and 1.9), and an intermediate value at the ice edge. The main species were the alcids (1.5, primarily Little Auk, &lt;i&gt;Alle alle&lt;/i&gt; and Brünnich's Guillemot, &lt;i&gt;Urea Iomvia&lt;/i&gt;), the Fulmar, &lt;i&gt;Fulmarus glacialis&lt;/i&gt; (0.5), and...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6886

A redescription of the presumed associated &lt;i&gt;Caligopsyllus primus&lt;/i&gt; Kunz, 1975 (Harpacticoida, Paramesochridae) with emphasis on its phylogenetic affinity with &lt;i&gt;Apodopsyllus&lt;/i&gt; Kunz, 1962
Provedor de dados: 27
Autores: Huys, R.
&lt;i&gt;Caligopsyllus primus&lt;/i&gt; Kunz, 1975, reported from tidal pools near East London (South Africa), is redescribed and figured on the basis of type material. An amended diagnosis of the genus &lt;i&gt;Caligopsyllus&lt;/i&gt; Kunz, 1975 is presented. Cladistic analysis falsified the hypothesis of a close relationship between &lt;i&gt;Caligopsyllus&lt;/i&gt; and &lt;i&gt;Kliopsyllus&lt;/i&gt; Kunz, 1962, favouring instead a link with &lt;i&gt;Apodopsyllus&lt;/i&gt; Kunz, 1962. The morphological modifications are discussed within the context of a possible ecto-associated life-style. Finally, a standard format of abbreviations and terminology is proposed for the paramesochrid caudal ramus.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Holotypes Phylogeny Synopsis Apodopsyllus Kunz; 1962 Caligopsyllus primus PSW; South Africa.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3243

Het Schelde-estuarium als filter: een bioreactor van stofstromen
Provedor de dados: 27
Autores: Van Damme, S.; Meire, P.
The Scheldt estuary is exposed to large loads of carbon and nutrients. This leads to a eutrophication problem characterized by reduced oxygen concentrations and a huge efflux of CO&lt;sub&gt;2&lt;/sub&gt;. In the coastal waters a degradation of the foodchain is noted caused by excessive nutrient supply. The capacity of the estuary to polish the water is important but can not cope with the vast scale of the immissions. Restoration and development of tidal wetlands can contribute in several ways to restore the water quality. Increase of water treatment is expected to have positive ecological results. Nevertheless, restoration of the oxygen conditions might counteract some purifying processes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Degradation; Estuaries; Eutrophication; Food chains; Nutrients (mineral); Water quality.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280697.pdf

Biodiversity of the Weddell Sea: macrozoobenthic species (demersal fish included) sampled during the expedition ANT XIII/3 (EASIZ I) with RV &lt;i&gt;Polarstern&lt;/i&gt;
Provedor de dados: 27
Autores: Gutt, J.; Sirenko, B.I.; Arntz, W.E.; Smirnov, I.S.; De Broyer, C.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/245967.pdf

Estimates of dry and wet deposition and resuspension fluxes of several trace metals in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Dedeurwaerder, H.L.; Dehairs, F.A.; Decadt, G.; Baeyens, W.F.J.
In this study we have investigated air-sea exchanges in the Belgian coastal area located in the Southern Bight of the North Sea. Since 1980 the tropospheric aerosol contents for the trace elements Cd, Cu, Mn, Pb, Zn and for the reference elements Al , Fe, Na have been monitored on an intermittent basis from a maritime sampling platform (Light-Vessel West-Hinder; position: 51°23.5'N- 2°21.5'E, fig. 1). During 1981 sampling campaigns at sea were paralleled by sampling campaigns on land, in the coastal area (natural reserve De Blankaert, located at 20 Km inland), in order to allow for a better evaluation of the specific source or sink role of the sea. No major source of pollution exists between the maritime and the continental sampling sites. During these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aeolian deposits Resuspension Trace metals ANE; North Sea; Southern Bight.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3323

Projekt Zee eindverslag: 11c. Verontreiniging van het Belgisch waterwegennet en de kustzone, verzameling van de gegevens: Belgische kust
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Boelen, C.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/140760.pdf

Predictive value of laboratory tests with aquatic invertebrates: influence of experimental conditions
Provedor de dados: 27
Autores: Persoone, G.; Van de Vel, A.; Van Steertegem, M.; De Nayer, B.
Considering the difficulty of making meaningful extrapolations of laboratory bioassay data to real world situations, short-term tests have been carried out in a factorial pattern to determine the magnitude of effect variation resulting from changes in experimental abiotic conditions.Three selected zooplankton species (the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt;, the brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; salina&lt;/i&gt; and the waterflea &lt;i&gt;Daphnia magna&lt;/i&gt;) have been exposed to increasing concentrations of two chemicals (one inorganic and one organic) in different combinations of two major environmental variables.For the brackish water rotifer &lt;i&gt;B. plicatilis&lt;/i&gt; the acute toxicity of potassium dichromate and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina; Brachionus plicatilis; Daphnia magna.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3189

The diet of &lt;i&gt;Neomysis integer&lt;/i&gt; (Crustacea, Mysidacea) in the maximum turbidity zone of estuaries
Provedor de dados: 27
Autores: Fockedey, N.; Mees, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7283

Végétation marine de l'Ile de Port-Cros (Parc National): 11. Sur &lt;i&gt;Acrochaetium molinieri&lt;/i&gt; sp. nov. et &lt;i&gt;Lophosiphonia cristata&lt;/i&gt; Falkenberg
Provedor de dados: 27
Autores: Coppejans, E.; Boudouresque, C.F.
&lt;i&gt;Acrochaetium molinieri&lt;/i&gt; sp. nov. is characterized by its bicellular base; only one of these cells originates an erect filament. &lt;i&gt;Lophosiphonia cristata&lt;/i&gt;, rarely mentioned from the Mediterranean, is richly illustrated and described in detail.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acrochaetium molinieri; Lophosiphonia cristata.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3545

Active margin processes along the Antarctic Peninsula
Provedor de dados: 27
Autores: Henriet, J.-P.; Meissner, R.; Miller, L.W.
The Antarctic Peninsula has a remarkable record of active margin processes, which include subduction with progressive ridge-trench collisions, margin segmentation by major fracture zones, rifting in a hybrid back-arc and sheared plate margin context, fore-arc development and glacial-marine controlled trench fill processes.Several facets of these margin processes both of internal (crustal dynamic) and external origin (climate-controlled) have been documented by a geophysical survey during the Antarktis VI/2 cruise of R.V. &lt;i&gt;Polarstern&lt;/i&gt; (October-December-1987).Reflection seismic profiles have been shot over the rift basin of Bransfield Strait, over an elongated sediment-filled trough interpreted as a fore-arc basin, over accretional and...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2802

&lt;i&gt;Daptonema williamsi&lt;/i&gt; sp.n. (Nematoda, Xyalidae) from the Solomon Islands
Provedor de dados: 27
Autores: Vincx, M.; Coomans, A.
&lt;em&gt;Daptonema williamsi&lt;/em&gt; sp.n. from the Ombo river, New Georgia, is described and figured in detail. The species shows some interesting morphological characters, mainly in the reproductive system, e.g. an hitherto undescribed protraction and rotation system of the spicules, matching a posteriorly directed vagina. &lt;em&gt;D. williamsi&lt;/em&gt; closely resembles &lt;em&gt;D. normandicum&lt;/em&gt; (de Man, 1890), &lt;em&gt;D. oxycerca&lt;/em&gt; (de Man, 1888) and &lt;em&gt;D. tenuispiculum&lt;/em&gt; (Ditlevsen, 1918). The first of these species has shorter spicules, longer setae on the male tail, only 3–4 ejaculatory glands and a vagina perpendicular to the body wall. &lt;em&gt;D. oxycerca&lt;/em&gt; and &lt;em&gt;D....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daptonema williamsi.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7015

Ecology of free-living marine nematodes in the Voordelta (Southern Bight of the North Sea): 2. Habitat preferences of the dominant species
Provedor de dados: 27
Autores: Vanreusel, A.
The habitat preferences of the 50 dominant nematode species from the Voordelta (Southern Bight of the North Sea) were studied in relation to the sediment composition. For the stenotopic species the size of the silt fraction is often a limiting factor. Most eurytopic species are characterized by an affinity for silty or heterogeneous sediments. The habitat preferences of most of the species are similar to their distribution in other areas that have been studied. Where this is not so, factors other than the sediment composition (e.g. pollution) might be responsible for a shift in the distribution of species along the environmental gradients.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7797

Determination of vitamin E in aquatic organisms by high-performance liquid chromatography with fluorescence detection
Provedor de dados: 27
Autores: Huo, J.-Z.; Nelis, H.; Lavens, P.; Sorgeloos, P.; De Leenheer, A.P.
A liquid chromatographic (HPLC) method has been developed for the quantitative determination of different forms of vitamin E (alpha-, gamma-, and delta-tocopherol) in aquatic organisms. The assay consists of a simple extraction with methanol containing butylhydroxytoluene (BHT) as an antioxidant, followed by reversed phase chromatography with fluorescence detection. The efficiency of the extraction method was equivalent or superior to that of more complex approaches for the isolation of tocopherols. Linearity has been achieved over the range of 0.02 to 3 µg/ml for alpha-tocopherol and within-run and between-run coefficients of variation at three levels were 0.7-2.9 and 1.2-3.7%, respectively. The recovery at three concentrations ranged from 73.8 to 96.6%...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2978

&lt;i&gt;Ihleus&lt;/i&gt; gen. nov., a new leucosiid genus (Crustacea, Brachyura)
Provedor de dados: 27
Autores: Ovaere, A.
The new genus &lt;i&gt;Ihleus&lt;/i&gt; is described with two species: &lt;i&gt;Ihleus lanatus&lt;/i&gt; (Alcock, 1896) comb. nov. and &lt;i&gt;I. villosus&lt;/i&gt; (Chen, 1989) comb. nov. Both species were found in Papua New Guinea. The genus is tentatively placed in the subfamily Ebaliinae.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/303493.pdf

The cryptobiotic state of &lt;i&gt;Artemia&lt;/i&gt; cysts, its diapause deactivation and hatching: a review
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3179

Contamination par les métaux lourds des oiseaux marins et des marsouins de la Mer du Nord = Heavy metal contamination of seabirds and porpoises in the North Sea
Provedor de dados: 27
Autores: Antoine, N.; Jansegers, I.; Holsbeek, L.; Joiris, C.R.; Bouquegneau, J.-M.
In the North Sea, the contamination level of Cd in porpoises, Zn and Cu in seabirds and Hg in both appear to be very high. The other studied metals (Cr, Ti, Fe, Pb) concentrations are comparable to literature. Seabirds and porpoises are located at top of the food chains, however their use as bioindicators of the contamination level of the ecosystem they are feeding on remains debatable. Actually many differences appear in both the contamination level and the storage and detoxification mechanisms from a species to another.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aves [Birds]; Phocoenidae [porpoises].
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/237547.pdf

Structural and functional diversity of protistan communities
Provedor de dados: 27
Autores: Vyverman, W.; Sabbe, K.; Muylaert, K.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7096

Seaweeds of the Snellius-II Expedition (E. Indonesia): the genus &lt;i&gt;Caulerpa&lt;/i&gt; (Chlorophyta-Caulerpales)
Provedor de dados: 27
Autores: Coppejans, E.; Prud'homme van Reine, W.F.
The representatives of the genus &lt;i&gt;Caulerpa&lt;/i&gt;, collected during the Snellius-II Expedition (1984) in the Banda, Sawu and Flores Seas (Indonesia) are described and illustrated. Twelve species have been individualized, some including several growth forms (resulting in 26 entities): &lt;i&gt;C. brachypus&lt;/i&gt; (2 ecads), &lt;i&gt;C. cupressoides&lt;/i&gt; (6 ecads), &lt;i&gt;C. elongata, C. fergusonii, C. lentillifera, C. lessonii, C. microphysa, C. racemosa&lt;/i&gt; (7ecads), &lt;i&gt;C. serrulata&lt;/i&gt; (2 ecads), &lt;i&gt;C. sertularioides, C. taxifolia&lt;/i&gt; (2 ecads), &lt;i&gt;C. verticillata&lt;/i&gt;. An identification key is also added.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caulerpa.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2716

Production of &lt;i&gt;Nereis diversicolor&lt;/i&gt; O.F. Müller (Polychaeta) in a shallow brackish-water pond
Provedor de dados: 27
Autores: Heip, C.H.R.; Herman, R.
A &lt;i&gt;Nereis diversicolor&lt;/i&gt; population inhabiting a shallow and landlocked brackishwater pond in Belgium has been studied over one year to estimate its production. This population reproduces from May to December with a peak in August. Total numbers vary between 5,000 and 17,000 individuals/m², the total standing stock lies between 13 and 39 g dry weight per m², with a mean of 24 g dry wt m&lt;sup&gt;-2&lt;/sup&gt;. Individuals grow linearly over long periods of time, although slower when they get larger. Production was calculated by determining the weight-specific growth-rate of the different size-classes in the populations; production in the year 1975-1976 was equal to 61 g dry wt m&lt;sup&gt;-2&lt;/sup&gt; year&lt;sup&gt;-1&lt;/sup&gt;. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater environment Secondary production Shallow water Nereis diversicolor [estuary ragworm] Belgium; Knokke-Heist; Dievengat.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3608

Cancellariidae of Hansa Bay, Papua New Guinea (Mollusca: Neogastropoda)
Provedor de dados: 27
Autores: Verhecken, A.
The Cancellariidae collected by scientists working at the "King Leopold III" Biological Station on Laing Island, Hansa Bay, Madang Province, Papua New Guinea (PNG), have been studied. This material consists of 58 shells, belonging to six species: &lt;i&gt;Scalptia crenifera&lt;/i&gt; (Sowerby, 1832), &lt;i&gt;S. crossei&lt;/i&gt; (Semper, 1861), &lt;i&gt;S. laingensis&lt;/i&gt; Verhecken, 1989, &lt;i&gt;S. obliquata&lt;/i&gt; (Lamarck, 1822), &lt;i&gt;S. vangoethemi&lt;/i&gt; sp. nov. and &lt;i&gt;Trigonostoma antiquatum&lt;/i&gt; (Hinds, 1843). The collecting area was limited both geographically and bathymetrically, so that the results obtained probably reflect only part of the cancellariid fauna of PNG.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/303572.pdf

Geochemical characterization of recent sediments in the Baltic Sea by bulk and electron microprobe analysis
Provedor de dados: 27
Autores: Belmans, F.; Van Grieken, R.; Brügmann, L.
Nineteen samples of silty and clayey sediments of the Baltic Sea were analyzed by bulk methods (atomic absorption spectrometry and inductively coupled plasma optical emission spectrometry), as well as by electron probe X-ray microanalysis (EPXMA). Processing of the EPXMA-data resulted in nine different particle types which have been identified as different mineral species. Quartz and aluminosilicate particles are most abundant (often more than 95%), although they are not of much help for the characterization of the geochemistry of Baltic sediments. Reduction products, such as Fe-sulfides and rhodochrosite, are found in anoxic sediment environments (e.g. Gotland Deep). The oxides/hydroxides of iron and manganese are more indicative of toxic environments...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2667

The subtidal macrobenthos in the mesohaline part of the Schelde Estuary (Belgium): influenced by man?
Provedor de dados: 27
Autores: Ysebaert, T.J.; De Neve, L.; Meire, P.
The macrobenthos of the subtidal, mesohaline zone of the Schelde Estuary (Belgium) was sampled in October 1996 and 1997 at 54 and 73 sampling locations respectively. Sediments ranged fr om silty to very coarse, with the dominant sediment type being silt (33% of all locations). Of the 35 macrobenthic species observed, only seven species occurred in more than 20% of the samples. The polychaete &lt;i&gt;Heteromastus filiformis&lt;/i&gt; and Oligochaeta were most common. Multivariate techniques revealed three distinct communities, linked mainly with sedimentological factors: (1) a species-poor (nine species) community with a dominance of the amphipod &lt;i&gt;Bathyporeia pilosa&lt;/i&gt;, a low mean abundance and biomass (86 ind/m², 0.0189 g ash-free dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological stress Community composition Environmental effects Man-induced effects Particle size Salinity effects Sediment properties Silting Zoobenthos Belgium; Zeeschelde.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3713

Influence of dietary vitamin C dosage on turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) and European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) nursery stages
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Storch, V.; Übel, U.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
Stable forms of vitamin C were verified as dietary sources of ascorbic acid (AA) for the nursery stages of European sea bass and turbot. In a first experiment, various concentrations of ascorbyl palmitate (AP) and one level of AA 2-polyphosphate (ApP) were evaluated in a semi purified diet for European sea bass, &lt;i&gt;Dicentrarchus labrax&lt;/i&gt;. A significantly lower AA concentration was detected in the fry fed the AP-supplemented diets compared to the ApP-fed group, providing evidence that AP is an inferior source of vitamin C for young stages of sea bass. ApP was subsequently selected for the determination of the AA requirements of both sea bass and turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) fry. The AA levels incorporated in the body...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass] Scophthalmus maximus (Linneaus; 1758).
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3045

Benthic communities in the Southern Bight of the North Sea and their use in ecological monitoring
Provedor de dados: 27
Autores: Govaere, J.C.R.; Van Damme, D.; Heip, C.H.R.; De Coninck, L.A.P.
Macrobenthic and meiobenthic communities of an area off the Belgian coast of the North Sea were studied from 1970 until 1975 at 74 stations. On the basis of both macro- and meiobenthos, three zones can be distinguished in the area. The coastal zone is characterized by the macrobenthic &lt;i&gt;Abra alba&lt;/i&gt; community, corresponding to the meiobenthic &lt;i&gt;Microarthridion littorale&lt;/i&gt;-&lt;i&gt;Halectinosoma herdmani&lt;/i&gt; community, and the open sea zone by the macrobenthic &lt;i&gt;Venus gallina&lt;/i&gt; community and the meiobenthic &lt;i&gt;Leptastacus laticaudatus-Paramesochra helgolandica&lt;/i&gt; community. In between is a transient zone where elements of both other zones mix. The distribution of these zones is governed by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Abra alba (W. Wood; 1802) [White furrow shell] Molluscs ANE; Belgium ANE; North Sea; Southern Bight.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3661

Dynamic patterns of dissolved nitrogen in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Mommaerts, J.-P.; Goeyens, L.; Dehairs, F.A.; Dedeurwaerder, H.; Decadt, G.
Spatial and temporal variations of dissolved inorganic nitrogen (DIN) have been assessed in onshore and offshore areas of the Southern Bight on the basis of several years' measurements. They indicate that both the residual flow lines and DIN isoconcentration lines run parallel with the coast except in the vicinity of important freshwater discharge points such as the Scheldt estuary. Evidence was found that the seasonal DIN oscillations are not created through fluctuations in input conditions at the lateral boundaries, despite considerable fluctuations in these inputs which include the English Channel (from 500 tons(t) N day&lt;sup&gt;-1&lt;/sup&gt; in June up to approximately 2000 t N day&lt;sup&gt;-1&lt;/sup&gt; in February) and also rivers such as the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dissolved organic nitrogen ANE; North Sea; Southern Bight.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3310

Sur deux dauphins à bec blanc, &lt;i&gt;Lagenorhynchus albirostris&lt;/i&gt; (Gray), de la côte belge
Provedor de dados: 27
Autores: De Smet, W.M.A.
Two specimens of the white-beaked dolphins, &lt;i&gt;Lagenorhynchus albirostris&lt;/i&gt; (Gray), stranded on the Belgian coast in 1968 and 1969 and thus proved that this species may happen to occur in Belgian coastal waters. The vertebral column, the dentition, lesions and exostoses of this specimens are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lagenorhynchus albirostris (Gray; 1846) [White-beaked dolphin] ANE; Belgium.
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/246090.pdf

Effect of vitamin C and astaxanthin on stress and disease resistance of postlarval tiger shrimp, &lt;i&gt;Penaeus monodon&lt;/i&gt; (Fabricius)
Provedor de dados: 27
Autores: Merchie, G.; Kontara, E.K.M.; Lavens, P.; Robles, R.; Kurmaly, K.; Sorgeloos, P.
Postlarvae of tiger shrimp, &lt;i&gt;Penaeus monodon&lt;/i&gt; (Fabricius), were fed semipurified diets supplemented with various levels of astaxanthin (AX) and ascorbic acid-polyphosphate (ApP): three groups were fed 230 mg AX kg&lt;sup&gt;-1&lt;/sup&gt; diet combined with 100, 1700 and 3400 mg ascorbic acid (AA) kg&lt;sup&gt;-1&lt;/sup&gt; diet, respectively; two diets contained 810 mg AX kg&lt;sup&gt;-1&lt;/sup&gt; mixed with 200 and 1700 mg AA kg&lt;sup&gt;-1&lt;/sup&gt;, respectively. Each treatment was run in four replicates. Incorporated levels of AA and AX, production output, and physiological condition were recorded after 4 weeks feeding. Whole-body AA (21-47 µg&lt;sup&gt;-1&lt;/sup&gt;) and AX concentrations (19-35 µg&lt;sup&gt;-1&lt;/sup&gt;)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus monodon [giant tiger prawn].
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=312

Air-lift pumps and the effect of mixing on algal growth
Provedor de dados: 27
Autores: Persoone, G.; Morales, J.; Verlet, H.; De Pauw, N.
Since turbulence is an important factor for the growth of microscopic algae, the effect of mixing intensity and mixing time, has been assessed by means of air-lift pumps as an alternative technology for the agitation of algal cultures. Batch culture experiments in enriched sea water were carried out indoors with &lt;i&gt;Chlorella&lt;/i&gt; in 100 liter tanks and outdoors with natural phytoplankton populations in 70 m³ tanks. The respective culturing depths in these tanks were 25 and 180 cm. The role of the mixing was also evaluated against that of the pH regulation of the cultures. Mixing with air-lift pumps increased the algal growth rate significantly in comparison to non-agitated cultures. The yields were also much higher (up to 30%) in mixed than in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae culture.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3692

Causes and incidence of the "black spot disease" on brown shrimp (&lt;i&gt;Crangon crangon&lt;/i&gt;)
Provedor de dados: 27
Autores: Vervoort, D.; Redant, F.; Declerck, D.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Diseases Crangon crangon (Linnaeus; 1758) [Brown shrimp] ANE; Belgium; Belgian Coast.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/128842.pdf

Approaches to the ethology of hydroids and medusae (Cnidaria, Hydrozoa)
Provedor de dados: 27
Autores: Miglietta, M.P.; Tommasa, L.D.; Denitto, F.; Gravili, C.; Pagliara, P.; Bouillon, J.; Boero, F.
The behavioural patterns of 26 species of Antho- and Leptomedusae (with or without medusa stage) were investigated by video recordings. The analysed activities were: answers to mechanical stimuli, prey capture and ingestion, digestion, egestion, and swimming. The quantity of behavioural patterns identified in the small number of hydrozoan diversity studied so far is sufficient to demonstrate that these supposedly "simple" animals have evolved a complex array of responses to both external and internal stimuli.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthomedusae; Cnidaria [cnidarians]; Hydrozoa; Leptomedusae.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/232610.pdf

Comparison of the fatty acid profile of wild caught fingerlings and yolk sac sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) larvae with cultured healthy larvae and larvae suffering from whirling disease
Provedor de dados: 27
Autores: Corneille, S.; Agius, C.; Ollevier, F.P.
Analysis of the fatty acids of total lipids of wild fingerlings (1-4 g) of sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) caught off the northcoast of France shows that more than 30% of total fatty acids consists of the two essential fatty acids eiopentaenoic (C20:5 n-3) and docosahaenoic (C22:6 n-3) acids. One- and three-day old yolk sac larvae have even higher amounts of these two important fatty acids (about 40%). On the other hand, laboratory-reared 60-day old larvae had much lower concentrations of C20:5 n-3 (4% of total fatty acids) and C22:6 n-3 (5,5% of total fatty acids). In larvae suffering from whirling or spinning disease the percentage of C20:5 n-3 was only 2,8% and only traces of C22:6 n-3 were found. These results emphasize the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax [Bass].
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3059

Size and phytoplankton selection by Oosterschelde zooplankton
Provedor de dados: 27
Autores: Tackx, M.L.M.; Bakker, C.; Francke, J.W.; Vink, M.
Grazing of adults of the copepods &lt;i&gt;Acartia&lt;/i&gt; spp., &lt;i&gt;Temora longicornis, Centropages hamatus&lt;/i&gt; and nauplii of &lt;i&gt;Balanus&lt;/i&gt; spp. on natural particulate matter from the Oosterschelde was studied using a Coulter counter. Two types of particulate matter distributions were found to occur in the Oosterschelde: 1. distributions with distinct peaks in the &gt;20 µm size range (A) and 2. more flattened distributions which were bell-shapened or contained multiple small peaks spread over the entire 4-100 µm size range (B). In A-type distributions, peak tracking was performed in all species studied, especially in &lt;i&gt;Acartia&lt;/i&gt; spp. and &lt;i&gt;T. longicornis&lt;/i&gt;. In B-type distributions, the animals...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zooplankton ANE; Netherlands; Oosterschelde.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3190

Effects of changing food availability on population dynamics of the Sandwich Tern &lt;i&gt;Sterna Sandvicensis&lt;/i&gt;
Provedor de dados: 27
Autores: Stienen, E.W.M.; Brenninkmeijer, A.
During the 20th century the numbers of nesting Sandwich Terns &lt;i&gt;Sterna sandvicensis&lt;/i&gt; in The Netherlands have fluctuated heavily. After the collapse in the 19605 the number of breeding pairs increased only slowly and stabilised at a low level. Earlier studies showed that population trends may be related to changes in food availability. Since the Sandwich Tern is a highly specialised piscivorous seabird, which feeds almost exclusively on tour species of fish (herring, sprat, sandeel and greater sandeel), the Sandwich Tern is probably highly vulnerable to changes in the availability of its prey species. To determine the key factors influencing population size the Institute for Forestry and Nature research (IBN-DLO), in co-operation with the...
Tipo: Info:eu-repo/semantics/book
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=662

&lt;i&gt;Vanvoorstia incipiens&lt;/i&gt; sp. nov. (Delesseriaceae, Rhodophyta) from Tanzania, East Africa
Provedor de dados: 27
Autores: De Clerck, G.; Wynne, M.J.; Coppejans, E.
Vanvoorstia incipiens DeClerk, M.J. Wynne et Coppejans sp. nov. (Delesseriaceae, Rhodophyta), a large, bushy alga of narrow axes, distinguishable from other species in the genus by its nonplanar habit and its minimal anastomoses, is described from Pongwe (6°02'S, 39°24'E), east coast of Zanzibar Island, Tanzania. The only anastomoses are those made by the final-order bladelets with adjacent penultimate-order blades, and even these occur only occasionally. The new species is also characterized by its overall habit, the narrow width of its blades, and their slight, noncontinuous cortication. Branches bearing tetrasporangia do not anastomose. The sequence of pericentral cell formation has been determined to involve the adaxial pericentral cell being formed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Delesseria J.V. Lamouroux; 1813 Rhodophyta [red algae] Vanvoorstia incipiens.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7752

Vessel-source pollution and coastal state jurisdiction: general framework
Provedor de dados: 27
Autores: Franckx, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7971

On the deep-sea desmoscolecid fauna of the flat of Cap Vert (Nematoda: Desmoscolecida)
Provedor de dados: 27
Autores: Decraemer, W.
The deep-sea bottom samples from the flat of Cap Vert, tropical Atlantic Ocean, collected during the EUMELI cruises, contain eight demoscolecid species, six of them belong to the subgenus &lt;i&gt;Quadricoma&lt;/i&gt;. The dominant species &lt;i&gt;Tricoma (Quadricoma) maxima&lt;/i&gt; is rediscribed including SEM information on the head region. A new species &lt;i&gt;Tricoma (Quadricoma) magnafenestra&lt;/i&gt; sp. nov. is characterised by a relative long body with 44 main rings, an end ring with large pores or phasmata and spike-like spinneret, a broad head with truncated anterior end with labial rim, males with 55µm long spicules. Additional information is given on &lt;i&gt;T. (Q.) loricata&lt;/i&gt;. The taxonomic status of &lt;i&gt;T. (Q.)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology New species Ocean floor Taxonomy Desmoscolecidae Nematoda [Nematodes] tricoma loricata Tricoma magnafenestra Tricoma maxima Tricoma media ASE; Cape Verde I.
Ano: 1998
URL: http://www.vliz.be/imisdocs/publications/303553.pdf

Bioengineering of hatcheries for marine fish and shellfish
Provedor de dados: 27
Autores: Sorgeloos, P.
Dependable availability of quality fry to stock growout production systems has been one of the most critical factors in the commercial success of industrial production of fish and shellfish. Over the past two decades intensive larviculture of several fish and shellfish species has expanded into a multimillion dollar industry. Although much progress has been made in identifying the dietary requirements of the larvae of various aquaculture species, the mass culture of their early larval stages still requires the use of live feeds, i.e., selected species of microalgae, the rotifer &lt;i&gt;Brachionus&lt;/i&gt;, and the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; . The latter two substitutes for natural zooplankton are eventually supplemented with selected lipids...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2622

Dosage des métaux lourds dans les échantillons biologiques par spectrophotométrie d'absorption atomique
Provedor de dados: 27
Autores: Vanderstappen, R.; Van Hoeyweghen, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/297086.pdf

Avifauna van de Spuikom
Provedor de dados: 27
Autores: Hautekiet, M.R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic birds ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1962
URL: http://www.vliz.be/imisdocs/publications/277119.pdf

Heavy metals in the bivalve &lt;i&gt;Anadara (Senilia) senilis&lt;/i&gt; from Nigeria
Provedor de dados: 27
Autores: Joiris, C.R.; Azokwu, M.I.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Accumulation Heavy metals Anadara senilis ASE; Nigeria.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6825

Vaccination of European sea bass fry through bioencapsulation of &lt;i&gt;Artemia&lt;/i&gt; nauplii
Provedor de dados: 27
Autores: Chair, M.; Gapasin, R.S.J.; Dehasque, M.; Sorgeloos, P.
European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) fry vaccinated orally by bioencapsulation in &lt;i&gt;Artemia nauplii&lt;/i&gt; or by bath method exhibited better performance than control fish in terms of growth, food conversion and resistance to stress. The comparable survival between vaccinated and non-vaccinated animals suggests that vaccination methods are stressful. The present study shows that oral vaccination can be used to enhance growth in fish fry.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2554

&lt;i&gt;Sargassum muticum&lt;/i&gt; (Yendo) Fensholt ook langs de Belgische kust aangespoeld
Provedor de dados: 27
Autores: Coppejans, E.; Rappé, G.; Podoor, N.; Asperges, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Sargassum muticum (Yendo) Fensholt ANE; Belgium; Belgian Coast.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3616

A new genus and species of Tantulocarida (Crustacea: Tantulocarida) parasitic on a harpacticoid copepod from the Skagerrak
Provedor de dados: 27
Autores: Huys, R.; Boxshall, G.
The new genus and species. Boreotuntulus kunzi, is described from Cylindropsyllus laevis, caught off the isle of Bonden, Bohaslän, Skagerrak. It is placed in the Deoterthridae on the basis of its larval characters. It can be distinguished form other genera by the presence of a distinct praecoxal segment carrying the endite on larval thoracopods2 to 5. This is the second tantulocaridan to be recorded in Scandinavian waters.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7057

Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative sandy beach: summer-winter comparison
Provedor de dados: 27
Autores: Degraer, S.; Mouton, I.; De Neve, L.; Vincx, M.
Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative beach were studied. On the beach of De Panne, Belgium, six transects perpendicular to the waterline (each with five stations) were sampled in September 1995 (summer) and March 1996 (winter). The 30 stations were distributed across the continuum from mean high water spring to mean low water spring in order to sample the macrobenthos at different levels of elevation. The 39 species found had total densities up to 5,500 ind m&lt;sup&gt;-2&lt;/sup&gt; in summer and 1,400 ind m&lt;sup&gt;-2&lt;/sup&gt; in winter. The highest densities were found in the spionid polychaetes &lt;i&gt;Scolelepis squamata&lt;/i&gt; and &lt;i&gt;Spio filicornis&lt;/i&gt;, the nephtyid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition Ecological zonation ANE; Belgium; Belgian Coast.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5000

Le genre &lt;i&gt;Neoferdina&lt;/i&gt; Livingstone (Echinodermata, Asteroidea: Ophidiasteridae)
Provedor de dados: 27
Autores: Jangoux, M.
8 spp of &lt;&lt;i&gt;Neoferdina&lt;/i&gt; were described between 1840 and 1936 and only 3 of them are certainly valid: &lt;i&gt;N. cumingi&lt;/i&gt; (Gray),&lt;i&gt;N. offreti&lt;/i&gt; (Koehler) and &lt;i&gt;N. glyptodisca&lt;/i&gt; (Fisher). Among the others, &lt;i&gt;N. intermedia&lt;/i&gt; (Djakonov) is conspecific with &lt;i&gt;N. offreti&lt;/i&gt;, and &lt;i&gt;N. cancellata&lt;/i&gt; (Grube) is conspecific with &lt;i&gt;N. cumingi&lt;/i&lt;. The statute of &lt;i&gt;N. ocellata&lt;/i&gt; (H.L. Clark) is discussed and for several reasons this species must be also considered as a synonym of &lt;i&gt;N. cumingi&lt;/i&gt;. The type of &lt;i&gt;N. kuhli&lt;/i&gt; (Muller et Troschel), the only specimen known, has been lost and, as the author's diagnosis...
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/276514.pdf

Palatability enhancing nutrients for the European eel, &lt;i&gt;Anguilla anguilla&lt;/i&gt; L.
Provedor de dados: 27
Autores: Pacolet, W.; Reynders, K.; Ollevier, F.P.
Feeding experiments with European glass eels &lt;i&gt;Anguilla anguilla&lt;/i&gt; L. demonstrated a high degree of attractiveness for the natural diets Tubifix and cod roe. Previous experiments had indicated that incorporation of bovine spleen and/or blood into paste feeds significantly improved the growth rate and survival. To increase feed consumption, the effect of some basic components available from the current generation of chemo-attractants were evaluated. Using a modified Omission Test Procedure, we focused on monosodiumglutamate, betaine, the nucleotides IMP and GMP, and fractions of cattle blood. These components were incorporated into non-attractive casein-based test diets and administered following standardized procedures to intensively...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed composition; Fish culture; Food additives; Food consumption; Food organisms; Nutritive value; Organoleptic properties.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2884

Common guillemot&lt;i&gt; Uria aalge&lt;/i&gt; stranding at the Belgian coast: an ecotoxicological evaluation
Provedor de dados: 27
Autores: Debacker, V.
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/226563.pdf

Contaminants in Belgian fish and shellfish (1971-1993)
Provedor de dados: 27
Autores: Vyncke, W.; Guns, M.; Roose, P.; Cooreman, K.; De Clerck, R.; Van Hoeyweghen, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3151

&lt;i&gt;Caulerpa&lt;/i&gt; (Chlorophyta, Caulerpales) from the Kenyan coast
Provedor de dados: 27
Autores: Coppejans, E.; Beeckman, T.
In view of preparing a Flora of the Seaweeds from Kenya, material is collected yearly by the authors since 1985. Twelve species of &lt;i&gt;Caulerpa&lt;/i&gt; have been collected so far, some including several varieties: &lt;i&gt;C. brachypus, C. cupressoides, C. elongata, C. fastigiata, C. lentillifera, C. mexicana, C. racemosa&lt;/i&gt; (with several var.), &lt;i&gt;C. scalpelliformis, C. serrulata, C. sertularioides, C. taxifolia, C. verticillata&lt;/i&gt;. An identification key is provided, the different species are described and illustrated (except &lt;i&gt;C. lentillifera&lt;/i&gt; and &lt;i&gt;C. racemosa&lt;/i&gt;; ecological and biogeographical data are added.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caulerpa ISW; Kenya.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3052

Marine mammal strandings: technical control on site
Provedor de dados: 27
Autores: Tavernier, J.
Strandings of marine mammals are always an unusual occurrence. Whether the animals are living or dead, these events require the input of many services and people. Techniques can be implemented to protect the animals, stabilise them, transport them, or -when they are dead- dispose of them properly. Technical coordination on the beach is therefore an important factor for success. The paper examines the various possible types of strandings and the different methods of intervention.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coordination; Coordination; Coordination; Marine mammals; Stranding.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303625.pdf

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supra-specific taxa of Chondrichthyan fishes. Part B. Batomorphii: 1c. Order Rajiformes - Suborder Rajoidei - Family: Rajidae - Genera and Subgenera: &lt;i&gt;Arhynchobatis, Bathyraja richardsoni-&lt;/i&gt;type, &lt;i&gt;Cruriraja, Irolita, Notoraja, Pavoraja (Insentiraja), Pavoraja (Pavoraja), Pseudoraja, Raja (Atlantoraja), Raja (Okamejei)&lt;/i&gt; and &lt;i&gt;Rhinoraja&lt;/i&gt;
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.; Stehmann, M.
Part B, Nos. 1a and 1b of this series, comprising of the Batomorphii the first and the second sections on the Rajoidei, is continued with the last group of rajoid taxa as far as material was available. The tooth morphology of representatives of eleven more genera and subgenera, namely &lt;i&gt;Arhynchobatis, Bathyraja richardsoni-type, Cruriraja, Irolita, Notoraja, Pavoraja (Insentiraja), Pavoraja (Pavoraja), Pseudoraja, Raja (Atlantoraja), Raja (Okamejei)&lt;/i&gt; and &lt;i&gt;Rhinoraja&lt;/i&gt;, is described and illustrated by SEM-photographs. Differential diagnoses and systematic interpretations are presented as a result of the odontological examinations described here and in the previous two issues 1a and 1b for the supraspefic taxa of the Rajoidei.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional morphology; Marine fish; Taxonomy; Teeth; Rajiformes.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/294448.pdf

The hyperbenthos of shallow coastal waters and estuaries: community structure and biology of the dominant species = Het hyperbenthos van ondiepe kustgebieden en estuaria: gemeenschapsstruktuur en biologie van de dominante soorten
Provedor de dados: 27
Autores: Mees, J.
Chapter 1: provides, I believe, a quasi-complete overview of the existing literature on the hyperbenthos. It thus serves as a general introduction to the work presented in this thesis. Studies are situated in space and time and the main structural characteristics of hyperbenthic communities are summarised. Quite some effort is paid to resolve the overriding semantic disagreement which seems to slow down progress in the field. Sampling methodology and the history of hyperbenthic research are reviewed. The role of hyperbenthic animals in marine food webs is briefly touched upon. Chapter 2: describes the hyperbenthic communities of the Voordelta. Twelve locations were sampled monthly at two depths between August 1988 and July 1989.' Three subareas were...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/140753.pdf

Two new species of &lt;i&gt;Morlaixia&lt;/i&gt; gen. n. (Nematoda, Diplopeltidae) with a subterminal ventral mouth
Provedor de dados: 27
Autores: Vincx, M.; Gourbault, N.
A new genus of the Diplopeltidae, &lt;i&gt;Morlaixia&lt;/i&gt; gen, n., is described; species are characterized by an asymmetrical anterior end, which is caused by the subventral position of the mouth opening and the buccal cavity; that feature is unique for the group. Two new species, &lt;i&gt;M , contusa&lt;/i&gt; sp. n. and &lt;i&gt;M. obscura&lt;/i&gt; sp. n., are described from fine sands and silty sediments in the Bay of Morlaix.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera; New species; Morlaixia; Nematoda [Nematodes].
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/308616.pdf

Direct determination of dissolved barium in seawater by inductively coupled plasma / atomic emission spectrometry
Provedor de dados: 27
Autores: Dehairs, F.A.; Neybergh, H.; Hoenig, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10120

Algues marines nouvelles pour la Côte du Boulonnais ( Pas-de-Calais, France), 4
Provedor de dados: 27
Autores: Coppejans, E.
&lt;i&gt;Enteromorpha pseudolinza&lt;/i&gt; was already collected in 1984 along the coast of the Boulonnais; &lt;i&gt;Ceramium recissum&lt;/i&gt; in 1974, '78, '81 and '90. The first observations of &lt;i&gt;Enteromorpha radiata&lt;/i&gt; and &lt;i&gt;Aglaothamnion hookeri&lt;/i&gt; in this region were only done in 1990. 11 &lt;i&gt;Enteromorpha&lt;/i&gt; spp., 3 &lt;i&gt;Aglaothamnion&lt;/i&gt; spp. and 6 &lt;i&gt;Ceramium&lt;/i&gt; spp. are known from the northern French coast. These newly observed species are described and illustrated; completed identification keys are added.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geographical distribution Rhodophyta [red algae] ANE; France.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2806

The geometric features, shape factors and fractal dimensions of suspended particulate matter in the Scheldt Estuary (Belgium)
Provedor de dados: 27
Autores: Billiones, R.G.; Tackx, M.L.; Daro, M.H.
Water samples from the Scheldt estuary were collected in three fractions: (a) unfiltered water, (b) water filtered through a 50 µm net and (c) water filtered through a 300 µm net. Particles easily recognisable from the majority of the amorphous particles were isolated and their geometric dimensions measured. From the measurements, shapefactors were calculated. Measurement of fractal dimensions was attempted. From the first fraction, the particles isolated and measured were circular and chained diatoms. In the second fraction, zooplankters were easily distinguishable and representatives of the three dominant groups (cladocerans, cyclopoids and calanoids) were measured. In the third fraction, detrital pieces from monocotyledon and dicotyledon plants were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detritus Estuaries Fractals Fractals Fractals Particle size Sedimentation Suspended particulate matter Water sampling Zooplankton Bacillariophyceae [Featherlike diatoms] Calanoida Cladocera Cyclopoida Plantae [Plants] Belgium Belgium; Zeeschelde.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3991

La station marine d'Edimbourg
Provedor de dados: 27
Autores: Van Beneden, P.-J.; Renard, A.-F.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oceanographic stations ANE; British Isles; Scotland.
Ano: 1884
URL: http://www.vliz.be/imisdocs/publications/215276.pdf

Bijzondere groeivormen van &lt;i&gt;Codium&lt;/i&gt; te Boulogne (Pas-de-Calais)
Provedor de dados: 27
Autores: Coppejans, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Codium ANE; France; Nord; Boulogne-sur-Mer.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7682

The use of &lt;i&gt;Artemia&lt;/i&gt; cysts in aquaculture: the concept of "hatching efficiency" and description of a new method for cyst processing
Provedor de dados: 27
Autores: Sorgeloos, P.; Persoone, G.; Baeza-Mesa, M.; Bossuyt, E.; Bruggeman, E.
The quality of brands of &lt;i&gt;Artemia&lt;/i&gt; cysts should be expressed on a weight basis, namely the number of live nauplii hatching out per unit of weight of product and not as a "hatching percentage" since the latter concept does not take into account the degree of impurity of the material. A standardized method for the determination of the hatching efficiency is proposed. A new methodology for cyst processing has been worked out at laboratory scale, based on a 2-step cleaning (brine and tap water) followed by dehydration (air or brine) or decapsulation and dehydration (brine).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Cysts; Hatching; Artemia.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3615

Systematic revision of the Chlamydinae (Pectinidae, Bivalvia, Mollusca) of the European Cretaceous part 1: &lt;i&gt;Camptonectes&lt;/i&gt;
Provedor de dados: 27
Autores: Dhondt, A.V.
This paper is the first part of a series dealing with the systematic revision of the European Cretaceous &lt;i&gt;Chlamydinae&lt;/i&gt; (Pectinidae, Bivalvia, Mollusca). Here, seven species of the genus &lt;i&gt;Camptonectes&lt;/i&gt; Agassiz, L. in Meek, F.B., 1864 and of the subgenus &lt;i&gt;Boreionectes&lt;/i&gt; Zakharov, V.A., 1965 are described: &lt;i&gt;C. (C.) cottaldinus&lt;/i&gt; (d'Orbigny, A., 1847), &lt;i&gt;C. (C.) striatopunctatus&lt;/i&gt; (Roemer, F.A., 1839), &lt;i&gt;C. (C.) virgatus&lt;/i&gt; (Nilsson, S., 1827), &lt;i&gt;C. (C.) gaultinus&lt;/i&gt; (Woods, H., 1902), &lt;i&gt;C. (B.) cinctus&lt;/i&gt; (Sowberby, J., 1822), &lt;i&gt;C. (B.) dubrisiensis&lt;/i&gt; (Woods, H., 1902), &lt;i&gt;C. ? Milleri&lt;/i&gt; (Sowberby, J. de C.,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cretaceous Bivalvia Europe; Europe.
Ano: 1972
URL: http://www.vliz.be/imisdocs/publications/252796.pdf

State of the art of Asian seabass &lt;i&gt;Lates calcarifer&lt;/i&gt; larviculture
Provedor de dados: 27
Autores: Dhert, P.; Lavens, P.; Sorgeloos, P.
Innovative techniques opened new perspectives in the larviculture or the Asian seabass in the 1980s. Induced spawning maximized egg production while sperm preservation reduced the problem of male brood-stock supply. Studies of biometric characteristics of the fish larvae resulted in improved feeding strategies with live food. This in turn permitted a more rational use of expensive &lt;i&gt;Artemia&lt;/i&gt; nauplii. Nutritional enhancement of the highly unsaturated fatty acid (HUFA) composition of the life food resulted in significant improvement of survival and physiological condition of the larvae of the metamorphosis. A salinity stress test enabled the evaluation of the larvae's physiological status and estimation of their HUFA-requirements during the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Larvae; Lates calcarifer.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2767

Carbon flows in the Westerschelde estuary (The Netherlands) evaluated by means of an ecosystem model (MOSES)
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.
The autotrophic production and heterotrophic consumption of organic matter in the Westerschelde, a highly turbid and eutrophic estuary in the Southwest Netherlands is examined by means of a dynamic simulation model. The model describes the ecologically relevant processes in thirteen spatial compartments and adequately fits most observed data. Three autotrophic processes are included in the model. Net pelagic photosynthetic production is relatively low (average 41 gC m&lt;sup&gt;-2&lt;/sup&gt; yr&lt;sup&gt;-1&lt;/sup&gt;) and three spatial compartments near the turbidity maximum zone are respiratory sinks of phytoplankton biomass. According to the model, net phytobenthic primary production is more important than pelagic primary production in the upstream...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autotrophy Carbon Carbon cycle Estuaries Estuarine dynamics Eutrophication Heterotrophy Mathematical models Mineralization Photosynthesis Primary production Trophic relationships ANE; Netherlands; Westerschelde.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8417

Determination of seasonal phytoplankton communities, based on quantitative data using a mathematical analysis
Provedor de dados: 27
Autores: Caljon, A.
The definition of algal communities has always been a very discussed subject. We applied a principal component analysis on quantitative phytoplankton data. This ordination technique made it possible to distinguish the algal groups present. This technique is very often applied in the phytosociology of higher plants but less frequently in the phytosociology of algae. Till now this ordination has been used in phycology, merely for marine- and freshwater benthic algae, e.g. the benthic diatoms of rivers (Descy 1976a, b).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community composition; Mathematical analysis; Phytoplankton; Seasonal variations.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3581

Végétation marine de l'île de Port-Cros (Parc National): 23. Sur deux espèces de &lt;i&gt;Griffithsia&lt;/i&gt; (Ceramiaceae, Rhodophyta) = Marine vegetation of Port-Cros Island (National Park): 23. On two &lt;i&gt;Griffithsia&lt;/i&gt;species (Ceramiaceae, Rhodophyta)
Provedor de dados: 27
Autores: Boudouresque, C.F.; Coppejans, E.
&lt;i&gt;Griffithsia barbata&lt;/i&gt; (Smith) C. Agardh and &lt;i&gt;G. tenuis&lt;/i&gt; C. Agardh are described from material principally collected at Port-Cros I. (France-Mediterranean Sea); the ecology, phenology and chlorology are given. The specimens of &lt;i&gt;G. tenuis&lt;/i&gt; from the Mediterranean Sea are different from these of the tropical Atlantic and Indo-Pacific Ocean by the structure of their spermatangial heads (firstly described for the Mediterranean Sea) and their tetrasporocysts. As a result the authors point out that extramediterranean &lt;i&gt;G. tenuis&lt;/i&gt; auct . should be named differently as the type of this species is coming from the Mediterranean Sea.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthic flora Griffithsia barbata MED; France; Languedoc-Roussillon; Port-Cros.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3414

Biologie et écologie de &lt;i&gt;Leptoconchus peronii&lt;/i&gt; (Lamarck, 1818) (Gastropoda, Coralliophilidae) récolté en Papouasie Nouvelle-Guinée, avec une redescription de l'espèce
Provedor de dados: 27
Autores: Massin, C.
&lt;i&gt;Leptoconchus peronii&lt;/i&gt; lives in faviid corals and nearly always between 3 and 7m depth. Female shell shape varies with the coral host. Most of the &lt;i&gt;L. peronii&lt;/i&gt; are living in pairs, the male being smaller than the female, sometimes dwarfish. The female broods about ten egg capsules in the mantle cavity. The microsculpture of the larval shell is not a specific character. The siphon is partly and longitudinally divided over all its lenght. The type series of &lt;i&gt;Leptoconchus peronii&lt;/i&gt; (Lamarck, 1818) is described and figured for the first time. &lt;i&gt;Leptoconchus striatus&lt;/i&gt; Rüppel, 1835, type species of the genus &lt;i&gt;Leptoconchus&lt;/i&gt;, and &lt;i&gt;Leptoconchus schrenkii&lt;/i&gt; Lischke,...
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/303550.pdf

Promising results in the seed culturing of the Manila clam &lt;i&gt;Tapes semidecussata&lt;/i&gt; with a manipulated yeast product as a partial substitute for algae
Provedor de dados: 27
Autores: Albentosa, M.; Naessens, E.; Léger, P.; Coutteau, P.; Lavens, P.; Sorgeloos, P.
The results are presented of preliminary trials conducted with &lt;i&gt;Tapes semiducussata&lt;/i&gt; spat using manipulated yeast products as substitutes for unicellular algae in their diets. Findings showed that spat growth increased with increasing amounts of algae in the artificial diet; growth was very poor when no algae were offered at all. It is concluded that manipulated yeasts may replace a substantial part of the algae in clam diets, but complete replacement is not possible, yet.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Clam culture; Diets; Nutritive value; Yeasts.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2801

Improved production of postlarval white shrimp through supplementation of L-ascorbyl-2-polyphosphate in their diet
Provedor de dados: 27
Autores: Kontara, E.K.M.; Merchie, G.; Lavens, P.; Robles, R.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
L-ascorbyl-2-polyphosphate (ApP) was used as a vitamin C source to study the ascorbic acid (AA) requirements for the early postlarval stages of white shrimp (&lt;i&gt;Penaeus vannamei&lt;/i&gt;). First the stability of ApP in the diets was determined: ApP losses after pelletizing and 10 min immersion in seawater were 25-35% and 30%, respectively. Semipurified diets with five levels of ApP (0, 20, 40, 100 and 200 mg kg&lt;sup&gt;-1&lt;/sup&gt; expressed as active AA were fed &lt;i&gt;ad libitum&lt;/i&gt; to &lt;i&gt;P. vannamei&lt;/i&gt; (PL-14 stage, mean dry weight 0.73 mg) for 26 days. Each treatment was run in five replicates. No significant differences in growth were observed among treatments after 26 days of feeding. As of day 19 of feeding, increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets; Polyunsaturated fatty acids; Shrimp culture; Penaeus vannamei.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2959

Energietransfert in de Spuikom te Oostende (1973)
Provedor de dados: 27
Autores: Polk, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7988

Optimization of dietary vitamin C in fish and crustacean larvae: a review
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Sorgeloos, P.
HPLC techniques were adapted and standardized for quantification of ascorbic acid (AA) and its derivates in both diets and target organisms. To assess the dietary needs for AA at start of exogenous feeding, the AA content in the various live diets currently used in aquaculture (algae, rotifers, &lt;i&gt;Artemia&lt;/i&gt; ) was analyzed. Application of techniques for boosting vitamin C using ascorbyl palmitate as the source enabled the transfer of elevated levels (up to 2,500 µg AA/g DW) of bioactive vitamin C. Larvae of fish (&lt;i&gt;Clarias gariepinus, Dicentrarchus labrax, Scophthalmus maximus&lt;/i&gt;), white shrimp (&lt;i&gt;Penaeus vannamei&lt;/i&gt;) and prawn (&lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;) were enriched via the live food chain....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacean larvae; Diets; Vitamin C.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2962

Projekt Zee eindverslag: 11b. Verontreiniging van het Belgisch waterwegennet en de kustzone, verzameling van de gegevens: Schelde, IJzer en bijrivieren
Provedor de dados: 27
Autores: Nihoul, J.C.J.; Boelen, C.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/140759.pdf

An improved method for artificial infection of the European eel, &lt;i&gt;Anguilla anguilla&lt;/i&gt;, with &lt;i&gt;Anguillicola crassus&lt;/i&gt; (Nematoda, Dracunculoidea)
Provedor de dados: 27
Autores: De Charleroy, D.; Cannaerts, V.; Augustijn, H.; Grisez, L.; Boon, J.; Ollevier, F.P.
A standardized method was developed for artificially infecting the European eel with &lt;i&gt;Anguillicola crassus&lt;/i&gt;, a parasitical swim bladder nematode. For this purpose, an intermediate host, &lt;i&gt;Paracyclops fimbriatus&lt;/i&gt;, and a paratenic host, &lt;i&gt;Cyprinus carpio&lt;/i&gt;, were used. Parasite prevalence in the artificially infected eels was very high, although there was a large variation in the number of worms per eel. Compared to other methods of artificial infection described in the literature, this method appears to be more efficient ad reliable; there were also more infectious larvae that were recovered and the mortality rate of eels under treatment was lower.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hosts Infestation Invertebrate larvae Methodology Mortality Swim bladder Anguilla anguilla (Linnaeus; 1758) Anguillicola crassus Copepoda [copepods] Cyprinus carpio Nematoda [Nematodes] Paracyclops fimbriatus (Fischer; 1853).
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3073

Distribution, transport and fate of Bi, Cu, Cd, Hg, Pb, Sb and Zn in the Belgian coastal marine environment. Part II: Spatial, temporal and compartmental distribution in the water column
Provedor de dados: 27
Autores: Decadt, G.; Gillain, G.; Dehairs, F.A.; Dedeurwaerder, H.; Goeyens, L.; Baeyens, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/268322.pdf

A new species of the genus &lt;i&gt;Leucosia&lt;/i&gt; from Australia and Papua New Guinea (Crustacea, Brachyura)
Provedor de dados: 27
Autores: Ovaere, A.
&lt;i&gt;Leucosia galantua&lt;/i&gt; sp. nov. found in Western Australia and northern Papua New Guinea is described and figured. The relationships with other species are discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/303564.pdf

Ecosysteemvisie voor de Vlaamse kust: 2. Natuurontwikkeling
Provedor de dados: 27
Autores: Provoost, S.; Rappé, G.; Ampe, C.; Leten, M.; Hoys, M.; Hoffmann, M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Ecosystem management Ecosystems ANE; Belgium; Belgian Coast Belgium; Het Zwin natuurreservaat.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/236008.pdf

Compte rendu sommaire des recherches entreprises à la Station biologique d'Ostende pendant les mois d'été 1883
Provedor de dados: 27
Autores: Van Beneden, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium ANE; Belgium; Oostende.
Ano: 1883
URL: http://www.vliz.be/imisdocs/publications/301277.pdf

Hazard prediction and relevance of laboratory-scale studies
Provedor de dados: 27
Autores: Persoone, G.
Predictive hazard assessment of chemicals, pure, in mixtures, or as wastes, is based on the comparison of exposure to effect concentrations. Experimental determination of no-effect levels can be carried out at various levels of biological organisation: within the organism (suborganismal), on individual species (organismal), or with biological communities (supraorganismal). The difficulty of predictive effect analysis consists of relating endpoints determined at various levels of biological organisation to the impact on structure and/or function impairment of natural ecosystems. Examples are given of effect-extrapolations which have been validated at different levels, and which carry promising predictive values.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3154

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichthyan fishes. Part B. Batomorphii: 1a. Order Rajiformes - Suborder Rajoidei - Family: Rajidae. Genera and Subgenera: &lt;i&gt;Anacanthobatis (Schroederobatis), Anacanthobatis (Springeria), Breviraja, Dactylobatus, Gurgesiella (Gurgesiella), Gurgesiella (Fenestraja), Malacoraja, Neoraja&lt;/i&gt; and &lt;i&gt;Pavoraja&lt;/i&gt;
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.; Stehmann, M.
Part B of this series, comprising the Batomorphii, is initiated with taxa of the Rajoidei. The tooth morphology of representatives of nine genera and subgenera is described and illustrated by SEM-photographs. An adapted terminology is introduced for the description of rajoid teeth, because their tooth morphology differs markedly in various aspects from that in selachians. A differential diagnosis for and conclusions on rajoid odontology, as well as an odontological key will be given in a forthcoming issue dealing with the last rajoid taxa.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/294446.pdf

One foot in the grave: zooplankton drift into the Westerschelde estuary (The Netherlands)
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.
The net growth rate of marine zooplankton entering the Westerschelde estuary was investigated using an advective-dispersive transport model that simulates zooplankton biomass behaving conservatively in the estuary. Total biomass of marine zooplankters in the Westerschelde was much lower than what would be expected based on transport alone, indicating negative growth rates in the estuary. Including a net consumption term in the transport model allowed the estimation of total net mortality. About 3% of all marine zooplankters that enter the Westerschelde with the flood currents are retained in the estuary, where they die. On average, 5% of the total marine zooplankton biomass in the estuary died per day. Each year a net amount of about 1500 t of zooplankton...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/227081.pdf

The Global Directory of Marine (and Freshwater) Scientific (GLODIR) and EuDIR: the European dimension
Provedor de dados: 27
Autores: Pissierssens, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=785

Preliminary experiments with the ciliate &lt;i&gt;Fabrea salina&lt;/i&gt; as a potential live food for mariculture purposes
Provedor de dados: 27
Autores: De Winter, F.; Persoone, G.
Mass culturing of suitable live foods for mariculture purposes is slowed down by the lack of fundamental knowledge on interesting food species with high nutritional value. Research at the laboratory level has shown that in this regard &lt;i&gt;Fabrea salina&lt;/i&gt;, a pelagic heterotrichous marine ciliate, seems to be a promising species for the following reasons. a) It can easily be fed with inert foods such as dry yeast as well as with live algae. b) With &lt;i&gt;Dunaliella viridis&lt;/i&gt; as sole food source, densities of several hundreds of ciliates per ml can be obtained quite easily. c) &lt;i&gt;Fabrea salina&lt;/i&gt; is a very euryhaline organism: the tolerance range extends from normal seawater to over 100 promille salinity. d) The ciliate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fabrea salina.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3532

Nutritional improvement of the commercial production of marine aquaculture species through application of innovative biotechniques
Provedor de dados: 27
Autores: Gajardo, G.; Coutteau, P.; Curé, K.; Sorgeloos, P.; Beardmore, J.A.
Marine aquaculture, particularly the salmon farming industry, has expanded very fast in Chile. Currently the country ranks second among the world leading salmon producers. However, there is a growing concern for the diversification of aquaculture activities. Examples are the cultures of flatfishes, either the introduced turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) or the native flounder species &lt;i&gt;Paralichthys microps&lt;/i&gt; and &lt;i&gt;P. adspersus&lt;/i&gt;, along with the native scallop, &lt;i&gt;Argopecten purpuratus&lt;/i&gt;. Although both turbot and scallop farming have had a successful transition from pilot to industrial scale, dependable availability of larvae/seed at cost-effective prices is, unlike the situation in the salmon...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2961

Maritime boundaries and regional co-operation
Provedor de dados: 27
Autores: Franckx, E.
This study is based on the premise that regional co-operation is best served by settled maritime boundaries in a particular region. This chapter intends to analyse the North Sea and Baltic Sea practice in order to try to find out which elements enhanced the conclusion of such boundary agreements in the past, and which did not. It will also refute the commonly held belief that the North Sea stands out as a model in boundary delimitation
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7829

Le foie embryonnaire de &lt;i&gt;Sepia officinalis&lt;/i&gt; L. (mollusque céphalopode): 1. Organogenèse
Provedor de dados: 27
Autores: Lemaire, J.; Richard, A.; Decleir, W.
The rudiments of the "hepatopancreas" appear early, in stage 20, as a pair of diverticula, given off from the midgut. The anterior part which lies against the yolk-sac will become the "liver". The growth of the liver exhibits a close relationship to the development of the inner yolk-sac. An electron microscopic study has been made of the hepatic epithelium at different embryonic stages. From stage 27, the cytologic aspects of the hepatic cell (presence of "balls", cytoplasm with well developed granular endoplasmic reticulum and free ribosoms...) give evidence of secretory activity. These ultrastructural features show that the liver becomes functional and allow us to think that it plays a part in the embryonic metabolism during the last stages of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embryonic development Liver Organogenesis Sepia officinalis Linnaeus; 1758 [Common cuttlefish].
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3566

Etude du biotope de l'ostréiculture à Ostende en 1970
Provedor de dados: 27
Autores: Daro, M.H.; Soroa Bofill, J.
Our study about the biotope of the oyster culture, the 'Bassin de Chasse d' Ostende', has shown us that: (1) the phyto- and zooplanktonic population extraordinary abundant let suppose us that the available food is enormous. (2) The harmful organisms (&lt;i&gt;Polydora ciliata&lt;/i&gt;) and the competitors of food for the oyster (&lt;i&gt;Mytilus edulis, Balanus, Mya arenaria&lt;/i&gt;) have fixed them by a clumsy manner on the &lt;i&gt;Ostrea&lt;/i&gt;. (3) The abundance of the competitors did not restrain the growth of the mussels and the oysters. On the contrary, their growth appears to be one of the greatest of Europe.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biotopes Ecology Oyster culture Molluscs ANE; Belgium; Oostende; Sluice Dock.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3449

The future of population and molecular genetics of marine organisms: capita selecta
Provedor de dados: 27
Autores: Volckaert, F.A.M.J.; Beullens, K.; Ollevier, F.P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2902

&lt;i&gt;Caulerpa&lt;/i&gt; section Sedoideae (Chlorophyta, Caulerpales) from the Kenyan coast
Provedor de dados: 27
Autores: Coppejans, E.; Beeckman, T.
The &lt;i&gt;Caulerpa&lt;/i&gt;'s with spherical, clavate, turbinate or peltate branchlets collected by the authors along the Kenyan coast from 1985 to 1988 are described and illustrated. They include &lt;i&gt;Caulerpa lentillifera&lt;/i&gt; as well as several "varieties" of &lt;i&gt;C. racemosa&lt;/i&gt;: var. &lt;i&gt;clavifera&lt;/i&gt;, var. &lt;i&gt;laetevirens&lt;/i&gt;, var. &lt;i&gt;lamourouxii&lt;/i&gt;, var. &lt;i&gt;occidentalis&lt;/i&gt;, var. &lt;i&gt;peltata&lt;/i&gt;, var. &lt;i&gt;turbinata&lt;/i&gt;. Their variability is discussed and an identification key is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caulerpa racemosa [sea grapes] ISW; Kenya.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3007

Production, disinfection and evaluation for aquaculture applications of rotifer resting eggs from Bohai Bay, P.R. of China
Provedor de dados: 27
Autores: Dhert, P.; Schoeters, K.; Vermeulen, P.; Sun, J.; Gao, S.; Shang, Z.; Naihong, X.; Van Duffel, H.; Sorgeloos, P.
The dynamics of resting egg production of the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; originating from a wild population in the Tanggu Saltworks (P.R. China) was investigated. In the natural environment as well as in semi-controlled rearing conditions an increased resting egg production was noticed with declining food availability. Processed resting eggs had a hatching efficiency of 3x10&lt;sup&gt;6&lt;/sup&gt; rotifers per gramme irrespective of their origin. Hatching started 22h after the initiation of incubation and was completed after 36h. Rotifers obtained from resting eggs could be further cultured on Culture Selco® and enriched with Super Selco®. The fatty acid profile of these rotifers were not divergent from reference rotifers...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Resting eggs; Rotifera.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2939

A quantitative evaluation of the impact of beam trawling on benthic fauna in the southern North Sea
Provedor de dados: 27
Autores: Piet, G.J.; Rijnsdorp, A.D.; Bergman, M.J.N.; van Santbrink, J.W.; Craeymeersch, J.A.; Buijs, J.
Data on density of benthos species and on direct mortality caused by the passing of a beam trawl, together with fishing effort data for the Dutch beam-trawl fleet, were used to evaluate the annual population mortality caused by beam trawling in the Dutch sector of the North Sea. The effects of using environmental strata, instead of ICES rectangles for density distributions, and of using higher-resolution fishing-effort data on the population mortality estimates of 21 infauna and epifauna species were investigated. Variation in species abundance was markedly smaller based on sediment-depth strata than based on ICES rectangles, and the resulting population mortality estimates differed significantly among species (ratio ranged from 0.3 to 1.6) depending on...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6399

Analysis of community attributes of the benthic meiofauna of Frierfjord-Langesundfjord
Provedor de dados: 27
Autores: Heip, C.H.R.; Warwick, R.M.; Carr, M.R.; Herman, P.M.J.; Huys, R.; Smol, N.; Van Holsbeke, K.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/221038.pdf

Waterbird communities along the estuarine salinity gradient of the Schelde estuary, NW-Europe
Provedor de dados: 27
Autores: Ysebaert, T.; Meininger, P.L.M.; Meire, P.; Devos, K.; Berrevoets, C.M.; Strucker, R.C.W.; Kuijken, E.
The zonation of non-breeding waterbirds along the Schelde estuary (The Netherlands-Belgium), one of the longest estuaries in NW-Europe with still a complete salinity gradient, including a large freshwater tidal area, was described. Numbers of birds were counted monthly over the period October 1991 to June 1997. Highest numbers of waterbirds were observed in late autumn and winter, with annual peak numbers ranging between 150,000 and 235,000 individuals for the whole estuary. Based on a multivariate analysis different waterbird communities were observed along the salinity gradient. The polyhaline areas of the estuary were numerically dominated by the waders Oystercatcher and Dunlin. Due to the presence of a large brackish marsh in the mesohaline zone, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance Anas Anser Aquatic birds Community composition Ecological distribution Estuaries Gradients Nature conservation Population number Salinity effects Species diversity Species richness Anser anser [greylag goose] Aves [Birds] Calidris alpina Haematopus ostralegus Belgium Belgium; Zeeschelde Netherlands.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7387

Knotszakpijp of Japanse zakpijp &lt;i&gt;Styela clava&lt;/i&gt; (Herdman, 1882) in de Spuikom van Oostende
Provedor de dados: 27
Autores: Eneman, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Introduced species Styela clava (Herdman; 1881) [Folded sea squirt] ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7671

Nematode biomass spectra at two abyssal sites in the NE Atlantic with a contrasting food supply
Provedor de dados: 27
Autores: Vanreusel, A.; Vincx, M.; Bett, B.; Rice, A.
Abundance and biomass sizes spectra of nematodes have been investigated at two contrasting abyssal sites in the NE Atlantic. The northern site is situated on the Porcupine Abyssal Plain where there is evidence for a high seasonal input of organic matter derived from the overlying water column. The southern site is the oligotrophic station of the French EUMELI programme off Mauritania and is characterized by low primary productivity in the overlying water column and consequently by a lower organic input to the deep-sea floor. Low nematode density and total biomass in the surficial centimetre of the sediment at the EUMELI site (89 ind/10 cm&lt;sup&gt;²&lt;/sup&gt;, 8.52 µg wwt/10 cm&lt;sup&gt;²&lt;/sup&gt;), in contrast to the PAP site (254 ind/10...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7795

Comparative study of different wet mineralisation digestion methods for the measurement of total mercury in biological samples
Provedor de dados: 27
Autores: Dehairs, F.A.; Decadt, G.; Baeyens, W.F.J.
Three botanical substrates and one milkpowder were mineralised and digested by the following methods in order to measure their total mercury content:  (1) HF/HNO&lt;sub&gt;3&lt;/sub&gt;-KMnO&lt;sub&gt;4&lt;/sub&gt;; (2) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;-KMnO&lt;sub&gt;4&lt;/sub&gt;; (3) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;- H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt;; (4) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;-UV irradiation/KMnO&lt;sub&gt;4&lt;/sub&gt;; (5) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;/V&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt;-catalyst...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Mercury; Nutrients (mineral).
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3380

An experiment on the relative importance of denitrification, nitrate reduction and ammonification in coastal marine sediment
Provedor de dados: 27
Autores: Goeyens, L.; De Vries, R.T.P.; Bakker, J.F.; Helder, W.
Simultaneous determinations of &lt;sup&gt;15&lt;/sup&gt;N-nitrogen gas production, &lt;sup&gt;15&lt;/sup&gt;N-ammonia formation by nitrate reduction and ammonia production from organic nitrogen were carried out after addition of &lt;sup&gt;15&lt;/sup&gt;N-nitrate to anaerobically incubated sediment slurries from a location in the Dutch Wadden Sea. The rate of nitrogen gas production was 1.75 µmol N.cm&lt;sup&gt;-3&lt;/sup&gt; wet sediment.d&lt;sup&gt;-1&lt;/sup&gt;, nitrate reduction to ammonia occurred to a rate of 0.79 µmol N.cm &lt;sup&gt;-3&lt;/sup&gt;.d &lt;sup&gt;-1&lt;/sup&gt; and ammonification at 1.17 µmol N-cm &lt;sup&gt;-3&lt;/sup&gt;.d &lt;sup&gt;-1&lt;/sup&gt;. At the end of the incubation experiment (after 30 h) 63% of the originally added...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ammonia; Biogeochemical cycle; Coastal zone; Denitrification; Nitrates; Nitrogen cycle; Sediments.
Ano: 1987
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3169

La glande nidamentaire accessoire de &lt;i&gt;Sepia officinalis&lt;/i&gt; L.: analyses biochimiques des pigments des bactéries symbiotiques
Provedor de dados: 27
Autores: Van den Branden, C.; Richard, A.; Lemaire, J.; Decleir, W.
An electron microscopic study of the accessory nidamental glands from &lt;i&gt;Sepia officinalis&lt;/i&gt; L. shows a secretory cycle in the epithelial cells and the presence of bacteria in the tubules of the gland. A correlation between sexual maturity, the color of the gland and the total number of symbiotic bacteria can be demonstrated. A biochemical study shows that the correlation of the gland is due to several carotenoid pigments. The most important of these is an orange-red xanthophyll that has been called Sepiaxanthine. It is probably formed in the bacteria as a result of the secretory activity of the epithelial glandular cells. This whole mechanism and the role of the bacteria and pigments need further research.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria Glands Pigments Symbionts Sepia officinalis Linnaeus; 1758 [Common cuttlefish].
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3618

Life history adaptation to demographic regime in laboratory-cultured &lt;i&gt;Tisbe furcata&lt;/i&gt; (Copepoda, Harpacticoida)
Provedor de dados: 27
Autores: Bergmans, M.
A laboratory population of &lt;i&gt;Tisbe furcata&lt;/i&gt; (Copepoda, Harpacticoida) with a 35-generation history of stable population size was examined for life history adaptations to demographic stationarity. Survival and fecundity schedules and individual fitness parameters were measured; a standard being provided by three accessions of the wild source population. &lt;i&gt;Tisbe furcata&lt;/i&gt; responded to density regulation by increasing its potential net reproductive rate, R&lt;sub&gt;o&lt;/sub&gt; This result is in agreement with the theory of fitness in age-structured populations, though in contradiction with intuitions based on the &lt;i&gt;r-K&lt;/i&gt;paradigm. The physiological mechanisms through which R&lt;sub&gt;o&lt;/sub&gt; is raised are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laboratory culture Life history Tisbe furcata (Baird; 1837).
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3313

Influence of temperature and river discharge on water quality of the Western Scheldt estuary
Provedor de dados: 27
Autores: Somville, M.; De Pauw, N.
Dissolved oxygen concentrations and information on the nitrification process collected respectively during a 14- and a 5-year period in the self-purifying part of the Western Scheldt estuary have been studied. In the polluted part of the stream, ammonium concentrations over the period 1967-1977 have been considered as well. This paper demonstrates the high variability of these three parameters (oxygen, start of the nitrification process, ammonium) owing to the hydrological conditions: temperature and river discharge. Neither the levels of ammonium in the polluted upper part of the stream, nor the concentrations of nitrate and dissolved oxygen in the recuperation part of the Scheldt estuary have been changed significantly during the periods studied...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ammonia Estuaries Nitrification Oxygen River discharge Temperature Water quality Belgium; Zeeschelde.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3421

&lt;i&gt;Artemia salina&lt;/i&gt; as live food in aquaculture
Provedor de dados: 27
Autores: Sorgeloos, P.; Baeza-Mesa, M.; Claus, C.; Vandeputte, G.; Benijts, F.; Bossuyt, E.; Bruggeman, E.; Persoone, G.; Versichele, D.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia salina.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3557

Anatomy and systematics of some Polycystididae (Turbellaria, Kalyptorhynchia) from the Pacific and S. Atlantic
Provedor de dados: 27
Autores: Karling, T.G.; Schockaert, E.R.
&lt;i&gt;Paraustrorhynchus&lt;/i&gt; gen. n., &lt;i&gt; P. pacificus&lt;/i&gt; (California), &lt;i&gt;Antiboreorhynchus novzelae&lt;/i&gt; sp. n. (New Zealand) and &lt;i&gt;Gyratrix proaviformis&lt;/i&gt; sp. n. (Oregon) are described as new taxa. Additional notes are given on &lt;i&gt;Gyratrix hermaphroditus&lt;/i&gt; Ehrbg. (new localities on the N. American Pacific coast), &lt;i&gt;Scanorhynchus forcipatus&lt;/i&gt; Karling (new locality in California), &lt;i&gt;Paraustrorhynchus elixus&lt;/i&gt; (Marcus) comb. n. and &lt;i&gt;Alcha evelinae&lt;/i&gt; Marcus (new localities in California). The taxonomy of the genera and species is discussed. Viewpoints are presented on evolutionary trends and homologous atrial organs in the family Polycystididae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polycystididae.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3563

Secondary production of the harpacticoid copepod &lt;i&gt;Paronychocamptus nanus&lt;/i&gt; in a brackish-water habitat
Provedor de dados: 27
Autores: Herman, P.M.J.; Heip, C.H.R.
The secondary production of the harpacticoid copepod &lt;i&gt;Paronychocamptus nanus&lt;/i&gt; (Sars, 1908) in a shallow, brackish-water pond was estimated during spring and summer 1980. The population was sampled every 5 d. Production of copepodites and adults, calculated by the size-frequency method, amounts to 1.91 g m&lt;sup&gt;-2&lt;/sup&gt; dry wt over the sampling period (March-November). Egg production is 1.23 g m&lt;sup&gt;-2&lt;/sup&gt;; naupliar production is roughly 1.09 g m&lt;sup&gt;-2&lt;/sup&gt;. The production efficiency (ratio of production to production plus respiration) of copepodites and adults is 0.37; for the total population it is 0.42.&lt;i&gt;P&lt;/i&gt;:&lt;i&gt;B&lt;/i&gt; of the population is 24.45 over the sampling period, or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Secondary production Copepoda [copepods] Paronychocamptus nanus ANE; Netherlands; Oosterschelde.
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3206

Mass culturing of marine and freshwater algae on aerated swine manure
Provedor de dados: 27
Autores: De Pauw, N.; De Leenheer, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3627

Incorporation of fatty acids from dietary neutral lipid in eye, brain and muscle of postlarval turbot fed diets with different types of phosphatidylcholine
Provedor de dados: 27
Autores: Geurden, I.; Reyes, O.S.; Bergot, P.; Coutteau, P.; Sorgeloos, P.
Previous results demonstrated the stimulating effect of soybean phosphatidylcholine (PC) on the utilization of dietary neutral lipid in larval and postlarval fish. The present study further investigated the effect of the degree of saturation of dietary PC on the enhancement of dietary fatty acid incorporation in lipids of turbot. Newly-weaned turbot were fed for 20 days on four isolipidic diets containing the same amount of highly unsaturated fatty acids (HUFA), presented either as neutral lipid, i.e. fish oil ethyl esters, or as polar lipid. Diet FO was a phospholipid-free control diet. Diets HPC, SPC and FPC were supplemented with 3% hydrogenated soybean PC, 3% native soybean PC and 3% marine fish roe PC, respectively.The three PC-supplemented diets...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=307

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supra-specific taxa of Chondrichthyan fishes. Part B. Batomorphii: 2. Order Raijformes - Suborder: Pristoidei - Family: Pristidae - Genera: &lt;i&gt;Anoxypristis&lt;/i&gt; and &lt;i&gt;Pristis&lt;/i&gt;. 3: Suborder Rajoidei - Superfamily Rhinobatoidea - Families: Rhinidae - Genera: &lt;i&gt;Rhina&lt;/i&gt; and &lt;i&gt;Rhynchobatus&lt;/i&gt; and Rhinobatidae - Genera: &lt;i&gt;Aptychotrema, Platyrhina, Platyrhinoidis, Rhinobatos, Trygonorrhina, Zanobatus&lt;/i&gt; and &lt;i&gt;Zapteryx&lt;/i&gt;
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.; Stehmann, M.
The tooth and rostral spine morphology of representatives of the pristid genera &lt;i&gt;Anoxypristis&lt;/i&gt; and &lt;i&gt;Pristis&lt;/i&gt;, of the rhinid genera &lt;i&gt;Rhina&lt;/i&gt; and &lt;i&gt;Rhynchobatus&lt;/i&gt; and of the rhinobatid genera: &lt;i&gt;Apytchotrema, Platyrhina, Platyrhinoidis, Rhinobatos, Trygonorrhina, Zanobatus&lt;/i&gt; and &lt;i&gt;Zapteryx&lt;/i&gt; is described and illustrated by SEM photographs. A differential diagnosis is given to distinguish the genera by tooth morphology.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systematics; Batomorphii; Elasmobranchii.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/250634.pdf

The use of &lt;i&gt;Artemia&lt;/i&gt; in marine fish larviculture
Provedor de dados: 27
Autores: Sorgeloos, P.; Lavens, P.; Léger, Ph.; Tackaert, W.
Among the live diets used in the larviculture of fish and shellfish, the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; nauplii constitute the most widely used food item; i.e., over 700 metric tons of dry &lt;i&gt;Artemia&lt;/i&gt; cysts are annually marketed worldwide for on-site hatching into 0.4 mm nauplii.Although the use of &lt;i&gt;Artemia&lt;/i&gt; appears to be simple, considerable progress has been made in the past decade in improving and increasing its value as a larval diet for marine fish larvae. The improvements include: identification of the most appropriate strains and batches; new techniques for cyst disinfection; decapsulation and hatching; and enrichment and cold storage of nauplii. Using particulate or emulsified products rich in highly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/135452.pdf

The infection dynamics and dispersion pattern of &lt;i&gt;Lernaeocera branchialis&lt;/i&gt; L. on 0+ whiting (&lt;i&gt;Merlangius merlangus&lt;/i&gt; L.) in the Oosterschelde (SW Netherlands)
Provedor de dados: 27
Autores: Van Damme, P.A.; Hamerlynck, O.
Size and structure of the &lt;i&gt;Lernaeocera branchialis&lt;/i&gt; population infection 0+ whiting in the Oosterschelde were studied during 1989. Two periods of successful transmission were distinguished. The first transmission wave occurs in late spring when the post-larval whiting enter the Oosterschelde. A second wave occurs in autumn. This pattern in the infection dynamics is possibly related to seasonal variations in spatial overlap of the intermediate (&lt;i&gt;Platichthys flesus&lt;/i&gt;) and the final host (&lt;i&gt;Merlangius merlangus&lt;/i&gt;). The dispersion pattern of &lt;i&gt;Lernaeocera branchialis&lt;/i&gt; within the whiting population can be described by the Poisson distribution. Possible explanations for the observed dispersion...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lernaea brachialis Linnaeus Merlangius merlangus (Linnaeus; 1758) [Whiting].
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2792

Turbellaria from Somalia: I. Kalyptorhynchia (part 1)
Provedor de dados: 27
Autores: Schockaert, E.R.
In this first contribution on Somalian marine microturbellarians, a detailed description of three new species belonging to the family Polycystididae is given. Very few data are available on representatives of this family from the Indo-Pacific area. The available data are from the American Pacific coasts (Marcus, 1954a; Schockaert &amp; Karling, 1970) and from the Antarctic (Karling, 1952). Karling (1952) described the first Polycystidid, &lt;i&gt;Koinocystella inermis&lt;/i&gt;, with a copulatory organ of the conjuncta type; Schockaert &amp; Karling (1970) proposed a new subfamily Duplacrorhynchinae to contain the three new species they described. The Somalian samples collected by the author contained three new species with a remarkable anatomy that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Kalyptorhynchia Turbellaria [Flatworms] ISW; Somali Dem. Rep.
Ano: 1971
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3434

Sea ice inhabiting Harpacticoida (Crustacea, Copepoda) of the Weddell Sea (Antarctica)
Provedor de dados: 27
Autores: Dahms, H.-U.; Schminke, H.K.
Five species of harpacticoid copepods belonging to three families and four genera were collected from various samples of sea ice taken during five cruises of RV Polarstern to the Weddell Sea from 1985-89. One species is new and described, namely &lt;i&gt;Hastigerella antarctica&lt;/i&gt; sp. n. &lt;i&gt;Drescheriella racovitzai&lt;/i&gt; comb. n. (Griesbrecht, 1902), &lt;i&gt;Harpacticus furcifer&lt;/i&gt; Giesbrecht, 1902 and &lt;i&gt;Idomene antarctica&lt;/i&gt; (Giesbrecht, 1902) are redescribed. The fourth nauplius of an unknown representative of Ectinosomatidae is described as well as three naupliar stages of &lt;i&gt;Harpacticus furcifer&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/303562.pdf

A simple method for subsampling zooplankton
Provedor de dados: 27
Autores: Persoone, G.
A simple and accurate method for subsampling zooplankton suspensions is described for which one only needs graduated plastic syringes and penicillin vials with a rubber stopper.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sampling; Sampling methods; Zooplankton.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3455

First report on the triggering effect of light on the hatching mechanism of &lt;i&gt;Artemia salina&lt;/i&gt; dry cysts
Provedor de dados: 27
Autores: Sorgeloos, P.
In the literature, hatching of &lt;i&gt;Artemia salina&lt;/i&gt; L. dry cysts has always been related exclusively to the hydration state of the cysts. Hatching experiments with cysts from different places revealed that light in some way triggers the hatching mechanism.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Hatching; Light effects; Artemia salina.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3475

MAST III - The optimisation of crest level design of sloping coastal structures through prototype monitoring and modelling (OPTICREST) - contract MAS3-CT97-0116: detailed scientific and technical report
Provedor de dados: 27
Autores: De Rouck, J.; Boone, C.; Van de Walle, B.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Coastal engineering Coastal waters Modelling Wave crests ANE; Belgium; Brugge; Zeebrugge ANE; North Sea; Southern Bight.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/262263.pdf

Environmental setting, morphology and volumetric evolution of the Middelkerke Bank (southern North Sea)
Provedor de dados: 27
Autores: Lanckneus, J.; De Moor, G.; Stolk, A.
The Middelkerke Bank, a tidal sandbank located in the southern North Sea on the Belgian continental platform has been the object of a multidisciplinary and international research project. The morphological and hydrodynamical setting of the study area is presented. A complete side-scan sonar coverage of the bank allowed a detailed analysis of the morphology of the bank and of its superimposed bedforms. Large dunes cover the flanks and summit of the Middelkerke Bank. They have a constant orientation, a height ranging from 0.5 to 5 m, a wavelength from 75 to 150 m and in most cases an asymmetrical profile. The slopes of both lee and stoss flanks are very low. Small and medium dune fields occur on the entire bank and in the adjacent swales. They are 2-D and...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2620

Two interesting new marine interstitial Ostracoda (Crustacea) from the Comoros, with the description of &lt;i&gt;Danipussella&lt;/i&gt; gen. nov.
Provedor de dados: 27
Autores: Wouters, K.
A new interstitial ostracod genus and species, &lt;i&gt;Danipussella serpentina&lt;/i&gt; gen. nov. sp. nov., from the Comoros (Grande Comore) is described and figured. Its affinities with related genera and species are discussed. The species occurs together with another interesting species, &lt;i&gt;Saipanetta kennesi&lt;/i&gt; sp. nov. which is also extensively described and figured, and compared with related species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera; New species.
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/254783.pdf

Eocene sequence stratigraphic siliciclastic sedimentation model in the Southern Bight, North Sea
Provedor de dados: 27
Autores: Jacobs, P.
The Belgian sector of the Southern Bight of the North Sea stands as a copy-book example of a shallow marine siliciclastic intracratonic sedimentary basin with a ramp type margin setting, characterized by low subsidence rates, relative tectonic quiescence, and a low gradient relief. Clastic sediment supply resulting of erosion by constant southern Alpine uplift, origins from a proto-Rhine-Meuse-Scheldt river drainage system, gradually infilling the basin. The mainly deltaic sedimentation system gives rise to (offshore and onshore) Tertiary onlapping and shallowing upward sedimentary series of metric to decametric thickness with a dip to the NNE of less than 5%.To identify the offshore seismostratigraphical units introduced on basis of 16,000 km of high...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2601

&lt;i&gt;Pacta Tertiis&lt;/i&gt; and the Agreement for the Implementation of the Provisions of the United Nations Convention on the Law of Sea of 10 December 1982 Relating to the Conservation &amp; Management of Straddling Fish Stocks &amp; Highly Migratory Fish Stocks
Provedor de dados: 27
Autores: Franckx, E.
Tipo: Info:eu-repo/semantics/book
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/248862.pdf

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichthyan fishes. Part A. Selachii. 4. Order: Orectolobiformes - Families Brachaeluridae, Ginglymostomatidae, Hemiscylliidae, Orectolobidae, Parascylliidae, Rhiniodontidae, Stegostomatidae. Order: Pristiophoriformes - Family: Pristiophoridae. Order: Squatiniformes - Family: Squatinidae
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
With the exception of the unavailable genera &lt;i&gt;Heteroscyllium&lt;/i&gt; and &lt;i&gt;Sutorectus&lt;/i&gt;, this fascicle comprises the descriptions of microteeth of the genera of the orectolobiform families Brachaeluridae, Ginglymostomatidae, Hemiscylliidae, Orectolobidae, Parascylliidae, Rhiniodontidae, Stegostomatidae, of the pristiophoriform family Pristiophoridae and the squatiniform family Squatinidae. Detailed descriptions of the tooth morphology, and rostral spine morphology for Pristiophoriformes are given, as well as SEM-photographs. The tooth morphology of the genera concerned is compared in order to elucidate the interrelationships within these shark orders also from an odontological point of view. The dental histology for the...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/294444.pdf

A model for eel growth in aquaculture
Provedor de dados: 27
Autores: Houvenaghel, T.; Huet, T.
Growth in eel populations is not centered around the mean. The model described here is designed to take the growth rate variability into account by classifying the population, step by step in time, into size boxes on which grading and grouping occurs. By selecting options, this model allows the fit to other growth conditions and therefore can be adapted to other species. This growth model is the backbone of a predictive model for aquaculture, built up by adding allometric functions related to basic physiological properties.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture Grading Growth Growth rate Prediction Simulation Anguilla anguilla (Linnaeus; 1758).
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3176

Recente inventaris van de benthische wieren (Cyanophyta, Chlorophyta, Phaeophyta, Rhodophyta) van de pier van Zeebrugge = Inventaire récent des algues benthiques (Cyanophyta, Chlorophyta, Phaeophyta, Rhodophyta) du môle de Zeebrugge
Provedor de dados: 27
Autores: De Vos, D.; Coppejans, E.
During the detailed study of the algal vegetation of the Zeebrugge pier in 1977-78, 45 taxa were identified, of which 4 Cyanophycea, 18 Chlorophycea, 8 Phaeophycea and 15 Rhodophycea. A species list with remarks on ecology and phenology is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthic algae Check lists Cyanophyta Phaeophyta Rhodophyta [red algae] ANE; Belgium; Brugge; Zeebrugge.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3642

Mollusques: Polyplacophores
Provedor de dados: 27
Autores: Leloup, E.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyplacophora [Chitons].
Ano: 1981
URL: http://www.vliz.be/imisdocs/publications/297679.pdf

Larval foods
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.; Dhert, P.; Devresse, B.
Larval ontogeny in fish is characterized by important anatomical and physiological phases with consequent changes in nutrient requirements. Depending on the size of the larva and the specialization of its digestive system at the initiation of exogenous feeding, live food remains an essential requirement for many marine and some freshwater fish species. This paper reviews the latest developments in the selection, production and/or use of the most commonly used live feeds in larviculture, i.e. micro-algae, rotifers, and brine shrimp.Species-specific dietary requirements are met by application of live food enrichment techniques with selected nutrients. It is very likely that broodstock nutrition and conditioning might influence the nutritional requirements of...
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2577

A new species of &lt;i&gt;Gastrosaccus&lt;/i&gt; (Crustacea, Mysidacea) from beaches in Madagascar
Provedor de dados: 27
Autores: Wooldridge, T.; Mees, J.; Webb, P.
&lt;i&gt;Gastrosaccus madagascariensis&lt;/i&gt; sp.nov. is common in the surfzone of sandy beaches along the east and south coasts of Madagascar. Morphologically, it is characterised by having seven lateral spines along each side of the telson; with spines 2-4 and the penultimate spine being dorso-lateral in origin. One or two spinules are interspersed between the fifth and terminal spines. The fourth exopod segment of pleopod 3 in the male is bulbous, bearing two terminal barbed unequal spines. A robust and naked seta is also present on the same segment in the male.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Gastrosaccus Norman; 1868.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5644

Vissen weren uit koelwater van de kerncentrale van Doel
Provedor de dados: 27
Autores: Maes, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cooling water Fish Nuclear power plants Protection Sound scattering Water pumps Belgium; Zeeschelde; Doel.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280714.pdf

Modelling the influence of ecological interactions on reactive transport processes in sediments
Provedor de dados: 27
Autores: Meysman, F.
Within the natural sciences, it has long been recognized that biological activity can modify the texture, structure and composition of surface sediments. Darwin (1881) already examined the stirring of soils by burrowing earthworms and made detailed observations on how these organisms affect soil processes. A similar phenomenon can be observed in aquatic sediments, which are inhabited by a diverse biological community, supported by the flux of organic matter and oxygen from the overlying water column. Surface sediments of oceans, estuaries, lakes and rivers are highly active biogeochemical environments and an effective way to generate insight in the complexity of the interactions is by means of so-called general early diagenetic models (e.g. Soetaert et al,...
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Chemistry; Ecology; Hydrology; Model; Sediment; Water.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8063

Pycnogonides provenant de la base antarctique belge
Provedor de dados: 27
Autores: Stock, J.H.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pycnogonidae PS; Antarctica.
Ano: 1965
URL: http://www.vliz.be/imisdocs/publications/294262.pdf

Expéditions antarctiques Belgo-Néerlandaise. Polychètes
Provedor de dados: 27
Autores: Anichini, C.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polychaeta [Bristle worms] PS; Antarctica.
Ano: 1967
URL: http://www.vliz.be/imisdocs/publications/294741.pdf

Carotenoid producing bacteria in the accessory nidamental glands of &lt;i&gt;Sepia officinalis&lt;/i&gt; L.
Provedor de dados: 27
Autores: Van den Branden, C.; Gillis, M.; Richard, A.
1. The accessory nidamental glands of the cuttlefish, &lt;i&gt;Sepia officinalis&lt;/i&gt; L. show an intensive orange-red coloration in mature females. This colour is due to carotenoid pigments which occur in symbiotic bacteria. 2. Six different pigmented strains of bacteria were isolated. 3. The main pigment in five of these strains is beta-carotene. 4. The main pigment in the sixth strain is the keto carotenoid, adonixanthin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sepia officinalis Linnaeus; 1758 [Common cuttlefish].
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3643

&lt;i&gt;In vitro&lt;/i&gt; experiments on the predation by the swimming crab, &lt;i&gt;Macropipus holsatus&lt;/i&gt;, on brine shrimps, &lt;i&gt;Crangon crangon&lt;/i&gt;
Provedor de dados: 27
Autores: Borremans, C.; Redant, F.
&lt;i&gt;In vitro&lt;/i&gt; experiments on the predatory behaviour of the Portunid crab&lt;i&gt;Macropipus holsatus&lt;/i&gt; indicate that it is not a very efficient predator of brown shrimp, &lt;i&gt;Crangon crangon&lt;/i&gt;. Only about 2 % of the shrimps in the test units were killed and partly eaten by the crabs. These findings are compared to the results of earlier investigations on the food composition and feeding behaviour of &lt;i&gt;Macropipus holsatus&lt;/i&gt; by Amrom (1961). Previous assumptions on the detrimental effect of the swimming crab on the shrimp stock and fishery should be attenuated.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Experimental research Interspecific relationships Predation Crangon crangon (Linnaeus; 1758) [Brown shrimp] Macropipus holsatus.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/128950.pdf

The ecology of marine nematodes
Provedor de dados: 27
Autores: Heip, C.H.R.; Vincx, M.; Vranken, G.
Nematodes are probably the most abundant metazoans in the biosphere and of very great importance to man. As parasites of man they are responsible for disease in hundreds of millions of people and an estimated eight billion nematodes are enjoying food, warmth and shelter in human intestines today; &lt;i&gt;Ascaris lumbricoides&lt;/i&gt; is, after the viruses responsible for diarrhoeal disease, the second most infectious organism in the world, about a quarter of the world's population being infected (Ash, Crompton &amp; Keymer, 1984). Plant-parasitic nematodes cause considerable damage to crops and many species are vectors of soil-borne viruses. Today, plant nematology is one of the most vital fields in agricultural research and is studied in many university...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Literature reviews; Nematoda [Nematodes].
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3205

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichthyan fishes. Addendum to part A, 1: Order: Hexanchiformes - Family: Hexanchidae. Odontological results supporting the validity of &lt;i&gt;Hexanchus vitulus&lt;/i&gt; Springer &amp; Waller, 1969 as the third species of the genus &lt;i&gt;Hexanchus&lt;/i&gt; Rafinesque, 1810, and suggesting intrafamilial reordering of the Hexanchidae
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
The tooth morphology of all hexanchid species, including the controversial species &lt;i&gt;Hexanchus nakamurai&lt;/i&gt; and &lt;i&gt;H. vitulus&lt;/i&gt;, is re-examined and illustrated. Odontologically &lt;i&gt;Hexanchus nakamurai&lt;/i&gt; is clearly distinct from &lt;i&gt;H. vitulus&lt;/i&gt;. An odontological determination key to all hexanchid species is given. The odontological results presented suggest another intrafamilial ordering of the taxa than by the number of branchial arches, which seem to be less important.
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/imisdocs/publications/294445.pdf

The relative importance of nannoplankton in the North Sea primary production
Provedor de dados: 27
Autores: Mommaerts, J.-P.
The South Bight of the North Sea has been investigated for the photosynthetic capacity of net- and nannoplankton, the fractional filtration method being used simultaneously with the C14 technique. The water appeared to be well mixed so that no important variations occurred along the vertical profile. The horizontal distribution of net-/nannoplankton ratios showed, however, a zonation pattern with netplankton-dominant activity near to the coast and nannoplankton-dominant activity further off. The interference of the River Scheldt has also been demonstrated. The various implications of the 'metabolic structure' of the phytoplankton community demonstrated by the fractionation method are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nannoplankton Primary production ANE; North Sea; Southern Bight.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3469

Revisie van de Monocelididae Hofsten, 1907 (Platyhelminthes)
Provedor de dados: 27
Autores: Martens, P.M.
This study constitutes a revision of the Digonoporid Lithophora Proseriata which correspond to the Monocelididae sensu Karling 1966a. The revision is based on morphological and karyological investigations. Morphological research is performed on living animals as well as on whole mounts and sectioned material. For about 30 species the copulatory organs are reconstructed using serial sections. Karyological investigation consist of a and p karyology. Both morphological and karyological data are used for phylogenetic analysis and the new system proposed reflects the hypothesized genealogical relationships. Since the beginning of our studies, the total amount of species described for this group has increased from 81 to 133, 41 of which are described by us. In...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/226682.pdf

Partitioning of a brackish water habitat by copepod species
Provedor de dados: 27
Autores: Heip, C.H.R.
1. The successful species of copepods in a brackish water habitat show a separation in time with regard to the date of maximum occurrence and the date of maximum reproductive activity. The succession of the five species examinated is: &lt;i&gt;Mesochra lilljeborgi, Paronychocamptus nanus, Tachidius discipes, Halicyclops magniceps&lt;/i&gt; and &lt;i&gt;Canuella perplexa&lt;/i&gt;.2. These species and others show moreover a separation in space: &lt;i&gt;C. perplexa&lt;/i&gt; is an endopsammic, &lt;i&gt;P. nanus&lt;/i&gt; a mesopsammic and &lt;i&gt;T. discipes&lt;/i&gt; an epipsammic species. Three cyclopoid species are planktonic. Two other species (&lt;i&gt;Nitocra typica&lt;/i&gt; and &lt;i&gt;Mesochra lilljeborgi&lt;/i&gt; are more numerous in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater ecology Habitat selection Copepoda [copepods] Belgium; Knokke-Heist; Dievengat.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3466

Influence of temperature on the reproductive potential of &lt;i&gt;Oncholaimus oxyuris&lt;/i&gt; (Nematoda: Oncholaimidae)
Provedor de dados: 27
Autores: Heip, C.H.R.; Smol, N.; Absillis, V.
The large nematode &lt;i&gt;Oncholaimus oxyuris&lt;/i&gt; Ditlevsen, 1911 is a dominant predator in a shallow polyhaline brackish-water pond in Belgium. The reproductive potential of this species was calculated as the intrinsic rate of natural increase r = 1/&lt;i&gt;G&lt;/i&gt; ln &lt;i&gt;pN&lt;sub&gt;e&lt;/sub&gt;&lt;/i&gt;, in which &lt;i&gt;D&lt;/i&gt; is the generation time, &lt;i&gt;p&lt;/i&gt; is the percentage of females, and &lt;i&gt;N&lt;sub&gt;e&lt;/sub&gt;&lt;/i&gt; is the number of eggs per female. The generation time varies between 570 days at 5°C and 101 days at 25°C and is the main factor in the determination of &lt;i&gt;r&lt;/i&gt;. The relationship between &lt;i&gt;r&lt;/i&gt; and temperature is nearly linear and is given by...
Tipo: Info:eu-repo/semantics/article
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3577

Selected bacterial strains protect &lt;i&gt;Artemia&lt;/i&gt; spp. from the pathogenic effects of &lt;i&gt;Vibrio proteolyticus&lt;/i&gt; CW8T2
Provedor de dados: 27
Autores: Verschuere, L.; Heang, H.; Criel, G.R.J.; Sorgeloos, P.; Verstraete, W.
In this study &lt;i&gt;Vibrio proteolyticus&lt;/i&gt; CW8T2 has been identified as a virulent pathogen for &lt;i&gt;Artemia&lt;/i&gt; spp. Its infection route has been visualized with transmission electron microscopy. The pathogen affected microvilli and gut epithelial cells, disrupted epithelial cell junctions, and reached the body cavity, where it devastated cells and tissues. In vivo antagonism tests showed that pre-emptive colonization of the culture water with nine selected bacterial strains protected &lt;i&gt;Artemia&lt;/i&gt; juveniles against the pathogenic effects. Two categories of the selected strains could be distinguished: (i) strains providing total protection, as no mortality occurred 2 days after the experimental infection with &lt;i&gt;V....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic animals; Bacteria; Biological control; Brine shrimp culture; Disease control; Infectious diseases; Microbiological analysis; Pathogenic bacteria; Artemia; Vibrio proteolyticus.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=45

Six-legged walking by a bottom-dwelling fish
Provedor de dados: 27
Autores: Renous, S.; Gasc, J.-P.; Bels, V.L.; Davenport, J.
The hypothesis of a locomotor role for the free rays of &lt;i&gt;Trigloporus lastoviza&lt;/i&gt; is supported by: (1) their periodic retraction and protraction during slow displacement over the substratum whenever the propulsive body wave responsible for swimming is not visible; (2) the integration of the rays' individual cycles into a hexapod gait apparently generated by a metachronal impulse; and (3) the kinematic features of the longest free ray in relation to the bottom-walking velocity.
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3742

Végétation marine de l'ile de Port-Cros (Parc National): 22. Sur quelques Ceramiaceae (Rhodophyta) = Marine vegetation of Port-Cros Island (National Park): 22. On some Ceramiaceae (Rhodophyta)
Provedor de dados: 27
Autores: Coppejans, E.; Boudouresque, C.F.
Five species of Ceramiaceae are illustrated, namely &lt;i&gt;Antithamnion crusciatum&lt;/i&gt; (C.Agardh) Nägeli, &lt;i&gt;Antithamnion heterocladum&lt;/i&gt; Funk, &lt;i&gt;Ceramium circiatum&lt;/i&gt; (Kützing) J.Agardh, &lt;i&gt;Lejolisia mediterranea&lt;/i&gt; Bornet and &lt;i&gt;Spermothamnion johannis&lt;/i&gt; Feldmann-Mazoyer. Their ecology and phenology at Port-Cros I. (Mediterranean Sea, France) are given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy Ceramiaceae MED; France; Languedoc-Roussillon; Port-Cros.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3349

The meiobenthos of the North Sea: density, biomass trends and distribution of copepod communities
Provedor de dados: 27
Autores: Huys, R.; Herman, P.M.J.; Heip, C.H.R.; Soetaert, K.
During a synoptic survey carried out in April-May 1986, 171 localities were sampled in the North Sea as delimited by the Straits of Dover in the south and approximately by the 100m isobath in the north. Meiobenthos included Nematoda, Copepoda, Turbellaria, Gastrotricha, Polychaeta, Oligochaeta, Priapulida, Kinorhyncha, Ostracoda, Halacarida, Isopoda, Tanaidacea, Bryozoa, Cnidaria, Sipunculida, Echiurida, Nemertini and Tardigrada. Nematodes were the dominant group in virtually all stations, their densities ranging from 61 to 4167 individuals. 10cm&lt;sup&gt;-2&lt;/sup&gt;. Only in the Southern Bight, where nematode numbers were low, did harpacticoids sometimes represent the dominant meiobenthic taxon. There was a tendency for nematode (and total...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7250

Eerste gegevens over het benthos van de Spuikom
Provedor de dados: 27
Autores: Thielemans, L.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8021

Het Scheldestroomgebied [KAART]
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Basins Maps ANE; Netherlands; Westerschelde Belgium; Schelde R. Belgium; Zeeschelde.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6438

Individual particle analysis of Western Mediterranean sediment cores, Rhône suspended matter and Sahara aerosols: investigation of inputs to the sediments
Provedor de dados: 27
Autores: Wegrzynek, D.; Jambers, W.; Van Grieken, R.; Eisma, D.
Individual particle analysis using electron probe X-ray microanalysis was performed on sediment cores from the Gulf of Lions (Western Mediterranean Sea), on atmospheric aerosols sampled in Corsica and originating from Northern Africa, and on Rhône suspended matter. Cluster analysis was done to yield major particle types and kriging spatial analysis was applied to obtain the distributions of the particle types in the sediment surface layers. For three sediment cores, the depth profiles of particle groups were examined. The predominant particle types composing the sediment material in the Gulf of Lions were found to be Si-rich particles (quartz and biogenic silicate), aluminosilicate minerals (illite, kaolinite, chlorite) and Ca-rich particles (aragonite,...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8299

Données supplémentaires sur &lt;i&gt;Polysiphonia banyulensis&lt;/i&gt; Coppejans (Ceramiales, Rhodophyceae)
Provedor de dados: 27
Autores: Coppejans, E.
The tetrasporophytes of &lt;i&gt;Polysiphonia banyulensis&lt;/i&gt; Coppejans collected in Corsica correspond exactly to those collected at Banyuls (Pyr.-Or., France), in that these also have 5 pericentral cells. The presence of 4 pericentral cells, mentioned in the original description is only correct for a part of the holotype. Thus &lt;i&gt;P. banyulensis&lt;/i&gt; belongs to the section &lt;i&gt;Polysiphonia&lt;/i&gt;.The female gametophytes, collected in July 1977 at Calvi (Corsica) are smaller and present numerous short-stalked spherical cystocarps without special cells around the ostiole. The other characters of the species (typical aspect of trichoblasts, presence of 5 pericentral cells, total absence of cortication) are also present.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polysiphonia banyulensis.
Ano: 1979
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3605

Marine aquaculture in Flanders
Provedor de dados: 27
Autores: Ollevier, F.P.; Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2882

The role of &lt;i&gt;Callionymus lyra&lt;/i&gt; and &lt;i&gt;C. reticulatus&lt;/i&gt; in the life cycle of &lt;i&gt;Lernaeocera lusci&lt;/i&gt; in Belgian coastal waters (Southern Bight of the North Sea)
Provedor de dados: 27
Autores: Van Damme, P.A.; Maertens, D.; Arrumm, A.; Hamerlynck, O.; Ollevier, F.P.
A survey of the dragonet &lt;i&gt;Callionymus lyra&lt;/i&gt; and the reticulated dragonet &lt;i&gt;C. reticulatus&lt;/i&gt; from Belgian coastal waters (Southern Bight of the North Sea) in June 1991 revealed 34% of dragonets infected with 1-7 &lt;i&gt;Lernaeocera lusci&lt;/i&gt;. This same parasite infected 9% of the reticulated dragonets (mean intensity = 1). Parasite size is host-size-dependent. Of the parasites collected from &lt;i&gt;C. lyra&lt;/i&gt; 64% were gravid adults (substage X), and a significant positive relationship between the number of eggs and axial length of the parasite was found. The parasites were overdispersed within the dragonet population (&lt;i&gt;s²/m&lt;/i&gt;=1.67).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callionymus lyra (Linnaeus; 1758) Callionymus reticulatus Valenciennes; 1837 Lernaeocera lusci.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2793

International study on &lt;i&gt;Artemia&lt;/i&gt; : 18. The hatching rate of &lt;i&gt;Artemia&lt;/i&gt; cysts: a comparative study
Provedor de dados: 27
Autores: Vanhaecke, P.; Sorgeloos, P.
A comparative study has been carried out on the hatching rate of &lt;i&gt;Artemia&lt;/i&gt; cysts of different geographical origin and on different batches of the same source. Substantial variation, among as well as within geographical strains, indicates that the hatching-rate criterion is not strain specific. In an attempt to identify the parameters which influence the hatching rate, it was found that the cyst-drying technique as well as the storage conditions may significantly affect this criterion. It has also been demonstrated that the cysts' hatchability is influenced by their previous drying and storing conditions. Optimal hatching results are guaranteed when a fluidized bed dryer is used and the cysts are stored under vacuum or nitrogen.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comparative studies; Hatching; Artemia.
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/261925.pdf

Systematic revision of the Chlamydinae (Pectinidae, Bivalvia, Mollusca) of the European Cretaceous part 3: &lt;i&gt;Chlamys&lt;/i&gt; and &lt;i&gt;Mimachlamys&lt;/i&gt;
Provedor de dados: 27
Autores: Dhondt, A.V.
This paper is the third of a seies dealing with the systematic revision of the European Cretaceous &lt;i&gt;Chlamydinae&lt;/i&gt; (Pectinidae, Bivavia, Mollusca). Nine species of the genus &lt;i&gt;Chlamys&lt;/i&gt; Roeding, 1798 (&lt;i&gt;C. faujasi&lt;/i&gt; (M. Defrance, 1825), &lt;i&gt;C. dentata&lt;/i&gt; (Nilsson, 1827), &lt;i&gt;C? Elongata&lt;/i&gt; (Lamarck, 1819), &lt;i&gt;C? Subacuta&lt;/i&gt;(Lamarck, 1819), &lt;i&gt;C? subdepressa&lt;/i&gt; (d'Archiac, 1847), &lt;i&gt;C? martiniana&lt;/i&gt; (d'Orbigny, 1850), &lt;i&gt;C? archiaciana&lt;/i&gt; (d'Orbigny, 1847), &lt;i&gt;C? goldfussi&lt;/i&gt; (Deshayes in Leymerie, 1843), &lt;i&gt;C? icaunensis&lt;/i&gt; (Cotteau, 1854) and six species of the genus &lt;i&gt;Mimachlamys&lt;/i&gt; (Iredale,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cretaceous Bivalvia Europe; Europe.
Ano: 1973
URL: http://www.vliz.be/imisdocs/publications/252819.pdf

A new record and a redescription of &lt;i&gt;Brania subterranea&lt;/i&gt; (Polychaeta, Syllidae):  Léopold III Biological Station, Laing Island. Contribution n° 18 = Une nouvelle station et une rédescription de &lt;i&gt;Brania subterranea &lt;/i&gt;(Polychaeta, Syllidae): Station Biologique Léopold III, Ile de Laing. Contribution n° 18
Provedor de dados: 27
Autores: Govaere, J.C.R.
&lt;i&gt;Brania subterranea&lt;/i&gt; (Hartmann-Schroeder, 1956), recorded for the first time from the West Pacific coasts, is studied by scanning electron microscopy. A well developed nuchal organ with cilia bearing disk-like enlargements could be demonstrated. The entrance of the pharynx carries ten papillae and a circlet of ordinary cilia. The fine structure of the simple and compound bristles and also their distribution in correlation with the length of the specimens is given in detail.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brania subterranea IW; West Pacific.
Ano: 1980
URL: http://www.vliz.be/imisdocs/publications/271869.pdf

Atmospheric concentrations and size distributions of aircraft-sampled Cd, Cu, Pb and Zn over the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Injuk, J.; Otten, Ph.; Laane, R.W.P.M.; Maenhaut, W.; Van Grieken, R.
In an effort to assess the atmospheric input of heavy metals to the Southern Bight of the North Sea, aircraft-based aerosol samplings in the lower troposphere were performed between September 1988 and October 1989. Total atmospheric particulate and size-differentiated concentrations of Cd, Cu, Pb and Zn were determined as a function of altitude, wind direction, air-mass history and season. The obtained data are compared with results of ship-based measurements carried out previously and with literature values of Cu, Pb and Zn, for the marine troposphere of the southern North Sea. The results point out the high variability of the concentrations with the meteorological conditions, as well as with time and location. The experimentally found particle size...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2810

The new geological map of Northwestern Flanders, Southern Bight North Sea: presentation
Provedor de dados: 27
Autores: Jacobs, P.; De Ceukelaire, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geological maps ANE; North Sea; Southern Bight.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2989

L'Escaut: numéro special de Septentrion
Provedor de dados: 27
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7507

&lt;i&gt;Coralliotantulus coomansi&lt;/i&gt; gen. et sp.n.: first record of a tantulocaridan (Crustacea: Maxillopoda) from shallow subtidal sands in tropical waters
Provedor de dados: 27
Autores: Huys, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coralliotantulus coomansi; Crustacea [crustaceans]; Maxillopoda.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7173

Comparative study of the nematode communities on the southeastern Weddell Sea shelf and slope (Antarctica)
Provedor de dados: 27
Autores: Vanhove, S.; Arntz, W.E.; Vincx, M.
Nothing is known about the structure of free-living marine nematode communities in the high Antarctic. Our attempt at surveying this numerically most abundant meiobenthic taxon along the continental shelf and slope (200 to 2000 m) furnished information on generic, trophic and age composition in 2 regions in the Weddell Sea (Kapp Norvegia, 6 stations, 71-72°S, 12-13°W; Halley Bay, 11 stations, 74-75°S, 25-29°W). A total of 7300 nematode identifications to generic level were analyzed by means of a variety of statistical techniques. The spatial structure indicated the existence of 4 major nematode genus associations colonizing the upper slope, downslope, Halley shelf and a mixed habitat consisting of shelf break and Kapp Norvegia shelf. Dominated by genera...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance Continental margins Dominant species Meiobenthos Sediment analysis Acantholaimus Daptonema Dichromadora Leptolaimus Microlaimus Molgolaimus Monhystera Nematoda [Nematodes] Sabatieria PSW; Weddell Sea.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/273307.pdf

New tantulocarid, &lt;i&gt;Stygotantulus stocki&lt;/i&gt;, parasitic on harpacticoid copepods, with an analysis of the phylogenetic relationships within the Maxillopoda
Provedor de dados: 27
Autores: Boxshall, G.; Huys, R.
A new genus of Tantulocarida, Stygotantulus, is described based on material from an anchialine pool on Lanzarote, Canary Islands. It is the most primitive tantulocarid known and is ectoparasitic on representatives of at least two families of harpacticoid copepods. It is distinguished by the presence of 7 abdominal somites in the tantulus larva. The musculature of the penis on trunk somite 7 of the male suggests that it is derived by modification of the seventh thoracopods. The importance of trunk somite numbers in maxillopodan systematics is reexamined and an attempt is made to apply the concept of homology to the developmental processes determining somite numbers. The classification of the Crustacea, including the Tantulocarida, proposed by Starobogatov...
Tipo: Info:eu-repo/semantics/article
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7070

Transformation, concentrations and deposition of North Sea aerosols
Provedor de dados: 27
Autores: Otten, P.
In this work, attention was focused on the lower troposphere above the North Sea. It is well known that the marine atmosphere acts as a source, a sink and a reaction reservoir for various chemical constituents. In the past 15 years it has become clear that the atmosphere above the North Sea can be an important source of pollutants for the sea. In chapter 1, the sampling of marine aerosols with a cascade impactor was studied with regard to the possible interaction between particles collected on an impaction surface and reactive gaseous atmospheric components that are drawn through the impactor . NaCI particles, generated by pneumatic nebulisation of a NaCI solution, were collected on an impaction plate of a cascade impactor . After passing through the...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/226615.pdf

Distribution, transport and fate of Bi, Cu, Cd, Hg, Pb, Sb and Zn in the Belgian coastal marine environment. Part V: Interaction kinetics between dissolved inorganic mercury and estuarine suspended matter
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Decadt, G.; Dehairs, F.A.; Goeyens, L.; Dedeurwaerder, H.; Gillain, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/286410.pdf

Concentration and partitioning of heavy metals in the Scheldt estuary
Provedor de dados: 27
Autores: Van Alsenoy, V.
The continuous growth of technology has lead to an (uncontrolled) introduction of contaminants into the biosphere. The efforts of removing man-made pollutants from the natural environment have been unable to cope with the increasing amounts of waste materials and growing population. This work studies one group of substances which have a particular lasting effect on the natural balance in aquatic systems; the heavy metals. Trace metals are present in all the abiotic reservoirs of the aquatic systems; i.e. the water, the suspended material and the sediments and its pore waters. Complexation of the dissolved metals with organic and inorganic ligands, sorption and biological processes are the main processes determining the distribution of the investigated...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5801

Manipulated yeast diets as a partial algal substitute for rearing bivalve molluscs: laboratory trials with &lt;i&gt;Tapes semidecussata&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Lavens, P.; Léger, P.; Sorgeloos, P.
The development of a cost-effective algal substitute would greatly reduce operating costs of bivalve hatcheries and has therefore been the subject of many studies. Previous work has resulted in the development of a yeast diet with improved digestibility and nutritional composition. Preliminary trials showed that this diet can substitute up to 80% of the algal diet in the seed culture of the Manila clam &lt;i&gt;Tapes semidecussata&lt;/i&gt;. In this communication we propose a culture test diet which will be used to study further dietary improvements of the yeast product.Juveniles of the Manila clam (1 to 5 mg unit weight) were batch cultured in a 51 recirculating system. Optimal daily ration for the algal control diet &lt;i&gt;Chaetoceros...
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2812

Canned mangrove crab (&lt;i&gt;Scylla serrata&lt;/i&gt;): a product with limited shelf life
Provedor de dados: 27
Autores: Declerck, D.
Tipo: Info:eu-repo/semantics/book
Ano: 1975
URL: http://www.vliz.be/imisdocs/publications/258105.pdf

The life cycle of &lt;i&gt;Oncholaimus oxyuris&lt;/i&gt; (Nematoda) in its habitat
Provedor de dados: 27
Autores: Smol, N.; Heip, C.H.R.; Govaert, M.
Tipo: Info:eu-repo/semantics/article
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7001

Harpacticoid copepods associated with &lt;i&gt;Spartina alterniflora&lt;/i&gt; culms from the marshes of Cocodrie, Louisiana (Crustacea, Copepoda)
Provedor de dados: 27
Autores: Fiers, F.; Rutledge, Ph.
Seven harpacticoid copepods have been found living on the lower parts of &lt;i&gt;Spartina alterniflora&lt;/i&gt; culms, from Cocodrie marshes in Louisiana (U.S.A.). This contribution deals exclusively with the systematics of these species. &lt;i&gt;Mesochra wolskii&lt;/i&gt; Jakubisiak is redescribed and a new key to the species of the genus is given. &lt;i&gt;M. neotropica&lt;/i&gt; Jakobi is allocated to the genus &lt;i&gt;Amphibiperita&lt;/i&gt; n. gen. and is redescribed and discussed in detail. A new laophontid species, &lt;i&gt;F. mangalis&lt;/i&gt; n. sp. is described and placed together with &lt;i&gt;Laophonte chathamensis&lt;/i&gt; Sars in the genus &lt;i&gt;Folioquinpes&lt;/i&gt;n. gen. Some amendations on the description of &lt;i&gt;Schizopera...
Tipo: Info:eu-repo/semantics/article
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/303580.pdf

Trace metal analysis of sediments and particulate matter in sea water by Energy-Dispersive X-ray Fluorescence
Provedor de dados: 27
Autores: Vanderstappen, M.; Van Grieken, R.
The capability of energy-dispersive X-ray fluorescence was investigated for fast and simple chemical analysis of trace elements in sediments and particulate matter in sea water. Nuclepore 0.4 µm pore-size membranes are recommended as optimal filters for a straightforward collection of suspended material. The collection of suspended trace metals by filtration seemed to give a sufficiently homogeneous filter load (&lt;i&gt;s&lt;/i&gt; % &lt; 2.5). Data are presented on the concentrations of K, Ca, Ti, Cr, Mn, Fe, Ni, Br, Pb, Rb and Sr with a fair precision (&lt;i&gt;s&lt;/i&gt; % &lt;5.6) and accuracy.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3554

Etudes hydrobiologiques sur les eaux saumâtres de Belgique: V. Les eaux saumâtres de Heyst-Zeebrugge. Période 1950-1951
Provedor de dados: 27
Autores: Van Meel, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydrobiology ANE; Belgium; Brugge; Zeebrugge ANE; Belgium; Knokke-Heist; Heist.
Ano: 1963
URL: http://www.vliz.be/imisdocs/publications/290066.pdf

Effects of pollutants on life-history parameters of the marine nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt;
Provedor de dados: 27
Autores: Vranken, G.; Vanderhaeghen, R.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7237

A revision of &lt;i&gt;Danielssenia&lt;/i&gt; Boeck and &lt;i&gt;Psammis&lt;/i&gt; Sars with the establishment of two new genera &lt;i&gt;Archisenia&lt;/i&gt; and &lt;i&gt;Bathypsammis&lt;/i&gt; (Harpacticoida: Paranannopidae)
Provedor de dados: 27
Autores: Huys, R.; Gee, M.
Archisenia gen. nov. is proposed to accommodate the sibirica-group of the genus Danielssenia Boeck, 1872. Re-examination of Alaskan material of D. stefanssoni Willey, 1920 has shown the latter species to be a junior synonym of D. sibirica Sars, 1898, the type and only species of the new genus. Danielssenia robusta Sars, 1921 and Fladenia intermedia (Wells, 1965) are synonymous and consequently F. robusta comb. nov. becomes the type species of the genus Fladenia Gee &amp; Huys, 1990. Danielssenia similis Chislenko, 1971 is regarded as species inquirenda and the genus Danielssenia is redefined from the type species D. typica Boeck, 1872, and two other species (D. quadriseta Gee, 1988 and D. reducta Gee, 1988). The status of D. fusiformis (Brady, 1880) nec...
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/266675.pdf

Les teneurs en composés organochlorés dans les organismes marins de différents niveaux trophiques
Provedor de dados: 27
Autores: Vandamme, K.; Maertens, D.
Polychlorinated biphenyls (PCBs) and some organochlorine pesticides we re measured in some marine organisms of different trophic levels, sampled in the Belgian coastal waters. Because of their persistence and their lipophilic character they accumulate in lipoidal tissues, causing higher organochlorine residue levels in animals with a high adiposity. To compare the residue levels of different organisms lipid based data must be used.The concept of biological magnification controlled by mass transfers of residues through food chains is questioned because predatory fish like cod contained similar or even lower residue levels than organisms of a lower trophic levellike the peacock worm. This supports the concept that the organochlorine levels are controlled by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organometallic compounds; Trophic levels.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3259

Vertical sulfur dioxide, ozone, and heavy metal concentration profiles above the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Otten, P.; Injuk, J.; Van Grieken, R.
Vertical profiles of SO&lt;sub&gt;2&lt;/sub&gt; and O&lt;sub&gt;3&lt;/sub&gt; concentrations were measured continuously within the lower atmosphere during 18 flights over the Southern Bight of the North Sea. The average SO&lt;sub&gt;2&lt;/sub&gt; concentration below the temperature inversion layer ranged from 1.9 to 19.5 ppb. The highest levels were observed when the air masses came from the southeast-east and under variable wind sector conditions: 15.2 and 12.0 ppb, respectively. The highest SO&lt;sub&gt;2&lt;/sub&gt; concentrations were found at altitudes between 100 and 200 m. The overall average O&lt;sub&gt;3&lt;/sub&gt; concentration was 46 ppb, with values of 30-40 ppb at sea level to 60-70 ppb at altitudes above 100 m. Low O&lt;sub&gt;3&lt;/sub&gt;...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2648

Seasonal fluctuations of &lt;i&gt;Sabatieria punctata&lt;/i&gt; (Nematoda) in a silty sand station off the Belgian coast
Provedor de dados: 27
Autores: Vincx, M.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/book
Ano: 1986
URL: http://www.vliz.be/imisdocs/publications/156589.pdf

Use of &lt;i&gt;Artemia&lt;/i&gt; as a food source for aquaculture
Provedor de dados: 27
Autores: Bengtson, D.A.; Léger, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2803

Relationship between dietary phospholipid classes and neutral lipid absorption in newly-weaned turbot, &lt;i&gt;Scophthalmus maximus&lt;/i&gt;
Provedor de dados: 27
Autores: Geurden, I.; Bergot, P.; Schwarz, L.; Sorgeloos, P.
A 28-day feeding trial was conducted for comparing the effect of different dietary phospholipid (PL) classes on the growth of post-larval turbot and on the incorporation of dietary neutral lipid fatty acids into their body lipids. Prior to the experiment the turbot were weaned for one week on a PL-free diet. The nine experimental diets were isolipidic and contained an equal amount of highly unsaturated fatty acids in the form of ethyl esters. They differed by their PL content (0.1 or 2%) and by the PL class composition of the added soybean PL fractions. Compared to the PL-free diet, diets enriched with phosphatidylcholine (PC) resulted in a better growth, a higher triglyceride content (% body dry matter) and increased levels of docosahexaenoic acid (%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758).
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=306

Three new species of Minoninae (Turbellaria, Proseriata, Monocelididae) from the North Sea, with remarks on the taxonomy of the subfamily
Provedor de dados: 27
Autores: Martens, P.M.
Three new species of Minoninae are described and a new genus is proposed for one of them: &lt;i&gt;Minona degadti&lt;/i&gt; sp. n., &lt;i&gt;Duplominona septentrionalis&lt;/i&gt; sp. n. and &lt;i&gt;Duploperaclistus circocirrus&lt;/i&gt; gen. et sp. n. All three species occur in sublittoral sandy habitats in the Southern Bight of the North Sea, but&lt;i&gt;D. circocirrus&lt;/i&gt; has also been found at a littoral station. The taxonomy within the subfamily Minoninae is discussed. Seven genera are considered as valid, and they are briefly diagnosed."&lt;i&gt;Peraclistus itaipus&lt;/i&gt;" &lt;i&gt;sensu&lt;/i&gt; Westblad (1952) (=&lt;i&gt;Duplominona westbladi&lt;/i&gt; Karling, 1966) is included in the new genus as &lt;i&gt;Duploperaclistis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera New species Duplominona septentrionalis Martens; 1983 Duploperaclistus circocirrus Martens; 1983 Minona degadti Martens; 1983 Minoninae ANE; North Sea.
Ano: 1983
URL: http://www.vliz.be/imisdocs/publications/260351.pdf

Selective attraction of marine bacterivorous nematodes to their bacterial food
Provedor de dados: 27
Autores: Moens, T.; Verbeeck, L.; de Mayer, A.; Swings, J.; Vincx, M.
This paper explores the role of selective attraction to food in determining the spatial (micro)distribution of closely related nematode species. The attractiveness of 3 different bacterial strains to 4 species of Monhysteridae, &lt;i&gt;Diplolaimelloides meyli, Diplolaimella dievengatensis, Monhystera&lt;/i&gt; sp. and &lt;i&gt;Geomonhystera disjuncta&lt;/i&gt;, was studied in a multiple choice design. In our study area, the 4 nematode species considered are associated with &lt;i&gt;Spartina anglica&lt;/i&gt; detritus decay and have partially overlapping microhabitat preferences. As they all belong to the same feeding guild, they are potential competitors for food. Each of the 4 nematode species was attracted to the bacterial strain B1, but important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemotaxis; Recruitment; Taxis; Bacteria; Diplolaimella dievengatensis; Diplolaimelloides meyli; Geomonhystera disjuncta; Nematoda [Nematodes]; Spartina anglica [common cord-grass].
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/273317.pdf

Biosociologische studie van de Belgische zeeduinen: verband tussen de plantengroei en de molluskenfauna
Provedor de dados: 27
Autores: Anteunis, A.
Tipo: Info:eu-repo/semantics/book
Ano: 1956
URL: http://www.vliz.be/imisdocs/publications/246703.pdf

Use of ongrown &lt;i&gt;Artemia&lt;/i&gt; in nursery culturing of the tiger shrimp
Provedor de dados: 27
Autores: Dhert, Ph.; Bombeo, R.B.; Sorgeloos, P.
Juvenile and adult &lt;i&gt;Artemia&lt;/i&gt; produced in a semi flow-through culture system were used as food for postlarval shrimp. The growth performance of shrimp reared on such ongrown &lt;i&gt;Artemia&lt;/i&gt; live prey is identical to the growth obtained when feeding newly hatched &lt;i&gt;Artemia&lt;/i&gt; . However, a significantly better stress resistance is obtained when the postlarvae are exposed to a low salinity in a stress test. Besides nutritional and energetic advantages, the use of &lt;i&gt;Artemia&lt;/i&gt; biomass for feeding postlarval shrimp also results in improved economics as expenses for cysts and weaning diets can be reduced.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2686

Single particle characterisation of inorganic and organic North Sea suspension
Provedor de dados: 27
Autores: Jambers, W.; Dekov, V.; Van Grieken, R.
Automated electron probe X-ray micro-analysis and scanning transmission electron microscopy were used to characterise the chemical and mineral composition of individual suspended particles, collected in the Southern Bight of the North Sea. The suspended matter contains 13 particle types, which can be classified in seven genetic groups: (i) terrigenous (aluminosilicate and calcium carbonate particle types); (ii) terrigenous-biogenic (silica type); (iii) terrigenous-hydrogenous (Fe-rich type); (iv) biogenic-authogenic (S-containing type); (v) terrigenous-anthropogenic (Ti- and Al-rich types); (vi) biogenic-anthropogenic (organic type); and (vii) terrigenous-anthropogenic-authogenous (heavy metal rich type). Staining the suspended matter with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition Biogenic material Geochemistry Mineralogy Organic matter Particulates Primary production Provenance River discharge Suspended particulate matter Terrigenous sediments ANE; North Sea; Southern Bight.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4019

Secondary production of the brackish copepod communities and their contribution to the carbon fluxes in the Westerschelde estuary (The Netherlands)
Provedor de dados: 27
Autores: Escaravage, V.; Soetaert, K.
The zooplankton community of the brackish part of the Westerschelde estuary (November 1989-October 1990) was dominated by two calanoid copepods, &lt;i&gt;Eurytemora affinis&lt;/i&gt; and &lt;i&gt;Acartia tonsa&lt;/i&gt;. &lt;i&gt;Eurytemora&lt;/i&gt; was present during a longer period of the year and was much more important in terms of total abundances and biomasses than &lt;i&gt;Acartia&lt;/i&gt;. The secondary production of these species was estimated by means of the growth rate method, using weight-specific growth rates obtained from laboratory cultures (&lt;i&gt;Eurytemora&lt;/i&gt;) or from the literature (&lt;i&gt;Acartia&lt;/i&gt;). Due to the substantially higher growth rates of &lt;i&gt;Acartia&lt;/i&gt; compared to &lt;i&gt;Eurytemora&lt;/i&gt;,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic communities Carbon cycle Estuaries Secondary production Copepoda [copepods] ANE; Netherlands; Westerschelde.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8409

Pumping fluid mud: theoretical and experimental considerations
Provedor de dados: 27
Autores: Berlamont, J.
In many cases maintenance dredging in harbors and access channels could be much cheaper and easier if the deposited mud could be pumped using fixed equipment. Therefore the feasibility of pumping fluid mud was examined. It is found that homogeneous mud can be pumped efficiently up to densities of 1150 kgm&lt;sup&gt;-3&lt;/sup&gt; (for the Zeebrugge (Belgium) mud). For higher densities the influence radius of the pumps becomes very small. A 1-D model can be used to determine the static equilibrium slope and the equilibrium profile of the mud-water interface. Layered mud deposits are more difficult to remove by pumping, since after each pumping cycle a layer of mud remains. As a consequence, layered mud deposits must be homogenized before pumping. This can...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dredging Feasibility Fluid mud Harbours Pumping Ship canals ANE; Belgium; Brugge; Zeebrugge.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2943

Inventaris van de walvisachtigen (Cetacea) van de Vlaamse kust en de Schelde
Provedor de dados: 27
Autores: De Smet, W.M.A.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inventories Marine mammals Cetacea [whales; Dolphins and porpoises] ANE; Belgium; Belgian Coast ANE; Belgium; Zwin Belgium; Het Zwin natuurreservaat.
Ano: 1974
URL: http://www.vliz.be/imisdocs/publications/242816.pdf

Taxonomic notes on &lt;i&gt;Caloglossa monosticha&lt;/i&gt; and &lt;i&gt;Caloglossa saigonensis&lt;/i&gt; (Delesseriaceae, Rhodophyta)
Provedor de dados: 27
Autores: Wynne, M.J.; De Clerck, O.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caloglossa monosticha; Caloglossa saigonensis; Delesseriaceae; Rhodophyta [red algae].
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7756

Summer distribution of seabirds in the North-East Water polynya, Greenland
Provedor de dados: 27
Autores: Joiris, C.R.; Kampp, K.; Tahon, J.; Møbjerg Kristensen, R.
The distribution at sea of seabirds was studied in the North-East Water (NEW) polynya, Greenland, during transect counts in the summers of 1991, 1992 and 1993 on board the ice-breaking RVs Polarstern and Polar Sea. Data collected within the polynya ‘box’ (78–82°N; 5–18°W) concern observations of 8000 birds counted during 1350 half-hour counts. Distribution is presented as density (N/km2) and calculated daily food intake. Five bird species were selected for discussion, representing more than 95% of the total numbers encountered: Fulmar (Fulmarus glacialis), Ivory Gull (Pagophila eburnea), Kittiwake (Rissa tridactyla), Glaucous Gull (Larus hyperboreus) and Ross's Gull (Rhodostethia rosea). For these species, densities are comparable in the NE Greenland...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6859

Résultats d'une étude systématique et écologique de la population algale des côtes rocheuses du Dramont, St. Raphaël (Var, France)
Provedor de dados: 27
Autores: Coppejans, E.
Thanks to this psychological study, stretched over a period of four years (1968-1972) on the algae population of the Le Dramont rocky coasts, we had the possibility to distinguish 19 different groups. Their apportionment and floristic composition have been consciously observed and studied, in summer as well as during spring, and this up to a depth of 45 m. A high number (35) of sections were done for that purpose, all over the work territory. Some of them are reproduced here (fig. 1, 2, 3, 4), with an indication of the placement of the different groups. Next, we compared our results with those of previous works, and we were able to conclude that the studied area is very analogue to the one of the J. Feldman study of the Albères Coast.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae; Ecology; Rocky shores; Taxonomy; France Coasts.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3452

The use of artificial diets in the hatchery rearing of bivalve mollusks
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
Hatchery rearing of bivalve mollusks depends on the production of live micro-algae, which is costly and often unpredictable. Therefore, the development of a cost-effective artificial diet would greatly reduce the operating costs and improve the efficiency of bivalve seed production. This paper reviews the results reported so far in the literature on the use of the various alternatives to on-site algal production. Furthermore, an overview is presented of the results obtained by the authors using manipulated yeasts as algal substitutes in feeding trials with juveniles of various commercially important bivalve species. Literature data and experimental findings were compared with experience "from the field" through an international inquiry among the operators...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2742

Expéditions antarctiques belges. Mission Iris-1960 C.N.R.P.B. Rapport de la section océanographique
Provedor de dados: 27
Autores: Capart, J.-J.; Closset, F.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Expeditions PS; Antarctica.
Ano: 1964
URL: http://www.vliz.be/imisdocs/publications/294268.pdf

Effect of dietary phospholipid on requirements for and incorporation of &lt;i&gt;n&lt;/i&gt;-3 highly unsaturated fatty acids in postlarval &lt;i&gt;Penaeus japonicus&lt;/i&gt; Bate
Provedor de dados: 27
Autores: Kontara, E.K.M.; Coutteau, P.; Sorgeloos, P.
&lt;i&gt;Penaeus japonicus&lt;/i&gt; postlarvae were fed three dietary levels of n-3 highly unsaturated fatty acids (HUFA) (0, 0.5 and 1%) with or without 1.5% soybean phosphatidylcholine (SPC; 95% purity). The experiment was conducted during two successive phases of 20 days starting with 12-day-old postlarvae. Supplying 1.5% of SPC and 1% &lt;i&gt;n&lt;/i&gt;-3 HUFA in the diet significantly improved the growth, survival and resistance to osmotic stress of postlarvae compared to those fed phosphatidylcholine (PC)-free and HUFA-free diets, respectively. A significant interaction between dietary SPC and n-3 HUFA was only found for their effect on resistance to osmotic stress. A significant drop in stress sensitivity was obtained in the PC-deprived shrimp...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Complex lipids; Polyunsaturated fatty acids; Penaeus japonicus [Kuruma shrimp].
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2956

The collection and processing of animal waste in the Flemish Region
Provedor de dados: 27
Autores: Tassyns, J.
Responsibility for waste materials since the 1980 Belgian State reforms has been a regional matter and is vested for the Flemish Region in the OVAM (Openbare Afvalstoffenmaatschappij voor het Vlaamse gewest-Public Waste Company for the Flemish Region). The collection and processing of animal waste is governed by the order of the Flemish government of 24 May 1995. The carcasses of the sperm whales, stranded on the coast of Belgium in 1994, were processed into animal feed in a processing facility, approved for animal waste. They were initially regarded as low-risk material. However, it was subsequently found that hazardous material were present in the tissues of the sperm whales, so that high-risk material was involved. Processing the sperm whale into animal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed Hazardous substances Incineration Stranding Waste Wastes ANE; Belgium.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303628.pdf

Live-food mediated drug delivery as a tool for disease treatment in larviculture: 2. A case study with European seabass
Provedor de dados: 27
Autores: Chair, M.; Romdhane, M.S.; Dehasque, M.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
The purpose of this study is to investigate the possibility of oral delivery of the antibiotics Trimethoprim (TMP) and Sulfamethoxazole (SMX) to marine fish larvae through incorporation of these antibiotics into the live food organism &lt;i&gt;Artemia&lt;/i&gt;. SMX and TMP were selected for their wide range action against gram negative pathogenic bacteria and because of their limited solubility in seawater. Ormetoprim-Sulfadimethoxine (brand name Romet-30) is a new combination of a similar antimicrobial drug used in aquaculture. Diseased penaeid larvae fed Romet-30 through the food chain exhibited greater survival than the untreated ones. In an earlier study Verpraet have described a technique for bioencapsulating high doses of more than 500 mu g TMP +...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiotics; Aquaculture techniques; Disease control; Fish culture; Fish larvae; Food additives; Food organisms; Dicentrarchus labrax [Bass].
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2805

Questionnaire on the use of algal substitutes and the requirement for live algae in hatchery and nursery rearing of bivalve mollusks
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
In the frame work of a PhD thesis dealing with the use of artificial diets as an algal substitute for mollusks, the Laboratory of Aquaculture &amp; Artemia Reference Center (State University of Ghent, Belgium) is organizing an inquiry which aims at drawing up an inventory of algal substitutes, their cost and applications, and their relative importance and cost-efficiency compared to live algae. The questionnaire has been sent to more than 200 people who are involved in the practice of culturing bivalves. The results will be treated as part of the PhD work and a free copy of the resulting report will be sent to all those who are returning the form. The questionnaire will be presented at Aquaculture Europe 1991 in Dublin under the form of a poster. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Diets; Feeding experiments; Food organisms.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2813

The hyperbenthic fauna of the Belgian continental shelf: spatial variability in community structure
Provedor de dados: 27
Autores: Dewicke, A.; Mees, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos ANE; Belgium; Belgian Continental Shelf (BCS).
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/277115.pdf

Végétation marine de l'Ile de Port-Cros (Parc National): 15. &lt;i&gt;Ceramium cingulatum&lt;/i&gt; Weber van Bosse nouvelle pour la Méditerranée, et quelques populations d'un &lt;i&gt;Ceramium&lt;/i&gt; sp. à parasporocystes
Provedor de dados: 27
Autores: Coppejans, E.
&lt;i&gt;Ceramium cingulatum&lt;/i&gt; Weber van Bosse described in 1923 after material from Siboga (Sumatra, Indian Ocean) has never been mentioned from the Mediterranean Sea. We found it regularly while assorting phytosociological relevés from Banyuls, Marseille and Port-Cros (France). Some populations of &lt;i&gt;Ceramium&lt;/i&gt; sp. growing epiphytically on &lt;i&gt;Amphiroa rigida&lt;/i&gt; Lamour, near the water at Port-Cros (Var, France) were richly and exclusively provided with parasporocysts. These reproductive organs are not very frequent in the genus &lt;i&gt;Ceramium&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae Ceramium cingulatum Weber van Bosse MED; France; Languedoc-Roussillon; Port-Cros.
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3567

Vissen
Provedor de dados: 27
Autores: Van de Velde, J.; De Clerck, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/288153.pdf

Evolution of trace metal concentrations in the Scheldt estuary (1978-1995): a comparison with estuarine and ocean levels
Provedor de dados: 27
Autores: Baeyens, W.F.J.
Dissolved and particulate metal concentrations assessed in the Scheldt estuary in the period 1978-1995, yield a clear indication that the levels of all metals decreased significantly. A comparison with other estuaries classifies the Scheldt as being moderately polluted for all metals in the dissolved phase, but as being fairly high polluted in the particulate phase, especially for Cd. However, even the dissolved metal concentration fractions in the Scheldt are still between 10 to 50 times enriched compared to total metal concentrations in unpolluted seas and oceans.
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7067

Two new species of the genus &lt;i&gt;Duplacrorhynchus&lt;/i&gt; Schockaert &amp; Karling, 1970, with remarks on relationships within the genus and on the Duplacrorhynchinae (Platyhelminthes, Polycystididae)
Provedor de dados: 27
Autores: Artois, T.; Schockaert, E.
Two new species of Polycystididae are described: &lt;i&gt;Duplacrorhynchus megalophallus&lt;/i&gt; sp. nov. from the bay of Marseille (France) and &lt;i&gt;D. heyleni&lt;/i&gt; sp. nov. from Zanzibar (Tanzania). The female system of both is characterized by the presence of a muscular bulb at the proximal end of the bursal stalk, with three strong teeth in &lt;i&gt;D. megalophallus&lt;/i&gt;, and in &lt;i&gt;D. heyleni&lt;/i&gt; the muscle bulb is highly asymmetric. In &lt;i&gt;D. megalophallus&lt;/i&gt; the copulatory bulb is divided by a septum, and the cirrus has small spines and a proximal umbrella-like expansion. In &lt;i&gt;D. heyleni&lt;/i&gt; only the cirrus, which has strong teeth, is enclosed in the cirrus sack: the seminal and prostate vesicles...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Duplacrorhynchus; Plathelminthes; Polycystididae.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1122

On the pisionids (Polychaeta: Pisionidae) from Papua New Guinea, with a description of six new species
Provedor de dados: 27
Autores: De Wilde, C.L.M.; Govaere, J.C.R.
Out of eight species of pisionids sampled in Papua New Guinea, six are new to science: &lt;i&gt;Pisione helenae&lt;/i&gt; n.sp., &lt;i&gt;P. parhelenae&lt;/i&gt; n. sp., &lt;i&gt;P. parva&lt;/i&gt; n. sp.,&lt;i&gt;P. brevicirra&lt;/i&gt; n. sp.,&lt;i&gt;P. ungulata&lt;/i&gt; n. sp. and &lt;i&gt;P. primitiva&lt;/i&gt; n. sp. Some remarks are given for &lt;i&gt;P. subulata&lt;/i&gt; Yamanishi, 1992, new for Papua New Guinea, and for &lt;i&gt;P. papuensis&lt;/i&gt; Govaere &amp; De Wilde, 1993. Special attention was paid to some female worms. A key is included for the Pisionidae of Papua New Guinea.
Tipo: Info:eu-repo/semantics/article
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/303485.pdf

Le recouvrement biogène le long de la côte belge
Provedor de dados: 27
Autores: Lefevere, S.
Marine fouling causes economical problems. Fouling diminishes the efficiency of propulsion of the ships. It enlarges the cost in fuel. Another effect is the loss in time and money because it necessitates frequent docking of the ships. These organisms increase the corrosion of metal in seawater. The damage to the timber constructions by marine borers causes renewed change of the piles. Therefore information was given about the principal fouling organisms at the Belgian coast. Some biologic aspects of the fouling were reviewed as the biotic succession by the different communities, the relation of fouling growth to local environments, the vertical zonation and the settling behavior of larvae controlled by salinity, temperature and light.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fouling organisms ANE; Belgium ANE; Belgium; Belgian Coast.
Ano: 1965
URL: http://www.vliz.be/imisdocs/publications/294261.pdf

Morphology of the pectoral girdle in &lt;i&gt;Pomatoschistus lozanoi&lt;/i&gt; De Buen, 1923 (Gobiidae), in relation to pectoral fin adduction
Provedor de dados: 27
Autores: Adriaens, D.; Decleyre, D.; Verraes, W.
Like most gobies, &lt;i&gt;Pomatoschistus lozanoi&lt;/i&gt; is a benthic fish species. During locomotion the pectoral fin adduction is of great importance in generating a forward propulsion. Several specimens of &lt;i&gt;Pomatoschistus lozanoi&lt;/i&gt; were dissected, cleared with staining and sectioned with staining, in order to examine the morphology of the pectoral girdle-apparatus. In this paper a detailed description is given of the skeletal elements, the musculature and the ligaments of the pectoral girdle-apparatus. The pectoral fins of gobies seem better adapted to powerful adduction than a generalised teleost. The proximal radials form a large rigid shoulder plate with a long distal margin on which a high pectoral fin articulates. The fin muscles...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Fins Pomatoschistus lozanoi (de Buen; 1923) [Lozano's goby].
Ano: 1993
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1640

The mobile epifauna of the soft bottoms in the subtidal Oosterschelde estuary: structure, function and impact of the storm-surge barrier
Provedor de dados: 27
Autores: Hostens, K.; HamerlyncK, O.
Data on the mobile epifauna of the Oosterschelde estuary, collected by beam trawl, were compiled from several studies. Multivariate statistical techniques brought out the fact that the Oosterschelde, when compared with neighbouring areas, has a characteristic epibenthic fauna. Diversity as measured by Hill's diversity numbers N through N &lt;sub&gt;+infinite&lt;/sub&gt;, is higher for the Oosterschelde (N&lt;sub&gt;1&lt;/sub&gt;=4.5) than for the Voordelta (N&lt;sub&gt;1&lt;/sub&gt;=3.5) and the Westerschelde (N&lt;sub&gt;1&lt;/sub&gt;=2.2).Four epifaunal communities can be distinguished within the Oosterschelde, the two most seaward communities being the richest. Annual production is estimated at about 6 gADW m&lt;sup&gt;-2&lt;/sup&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Production Production Production ANE; Netherlands; Oosterschelde.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2585

&lt;i&gt;Artemia&lt;/i&gt; from Madagascar reveals an exceptionally high n-3 highly unsaturated fatty acid content
Provedor de dados: 27
Autores: Triantaphyllidis, G.; Coutteau, P.; Miasa, E.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2634

Bioencapsulation of the antibacterial drug sarafloxacin in nauplii of the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Dixon, B.A.; Van Poucke, S.; Chair, M.; Dehasque, M.; Nelis, H.J.; Sorgeloos, P.; De Leenheer, A.P.
Nauplii of the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt; were enriched with the antibacterial drug sarafloxacin hydrochloride to determine if levels effective against four pathogenetic strains of &lt;i&gt;Vibrio&lt;/i&gt; spp. would accumulate in brine shrimp. Three vibrio strains were &lt;i&gt;Vibrio anguillarum&lt;/i&gt;; the fourth was &lt;i&gt;V. vulnificus&lt;/i&gt;. Concentrations of sarafloxacin ranging from 1 to 40% (weight: volume) were incorporated into the oil phase of Super Selco brine shrimp diets. Enriched nauplii and controls were sampled at 2h interval for 24h. Antibiotic sensitivity testing was evaluated with a modification of the Kirby-Bauer disk diffusion method. A microbiological assay with &lt;i&gt;Escherichia coli&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana.
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2560

Voorkomen van het Zuiderzeekrabbetje &lt;i&gt;Rhithropanopeus harrisii&lt;/i&gt; (Gould, 1841) in de Westerschelde
Provedor de dados: 27
Autores: Van Damme, P.; Mees, J.; Maebe, S.
Five male specimens of the White-fingered Mud Crab &lt;i&gt;Rhithropanopeus harrisii&lt;/i&gt; were collected from the intake screens of the nuclear power station at Doel on December 20th, 1991. These are the first living specimens of this species recorded in the Westernscheldt.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New records Rhithropanopeus harrisii (Gould; 1841) ANE; Belgium ANE; Netherlands; Westerschelde.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5670

Coprecipitation with aluminium hydroxide and x-ray fluorescence determination of trace metals in water
Provedor de dados: 27
Autores: Eltayeb, M.A.H.; Van Grieken, R.
Coprecipitation of trace elements on aluminium hydroxide was combined with energy-dispersive x-ray fluorescence for the analysis of environmental water. The parameters for the preconcentration method were studied. The optimum procedure involves addition of 1 mg of the carrier, at pH 7.3, to a 200-ml water sample. The pH was adjusted by addition of ammonia solution. Quantitative recoveries were obtained for Ti(IV), Cr(III_, As(V), Pb(II) and Th(IV). The precision was 4–6% and the detection limits were in the range 0.2–0.8 µg l-1.
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8455

Végétation marine de l'Ile de Port-Cros (Parc National): 10. La régression du récif-barrière de Posidonies = Marine vegetation of Port-Cros Island (National Park): 10. Regression of the &lt;i&gt;Posidonia&lt;/i&gt; barrier-reef
Provedor de dados: 27
Autores: Boudouresque, C.F.; Augier, H.; Belsher, Th.; Coppejans, E.; Perret, M.
This study is based on critical examination of old photography's, recent aerial photography's to which we added fishermen memories and underwater observations. An attempt to map the barrier-reef of &lt;i&gt;Posidonia oceanica&lt;/i&gt; (L.) Delile at the beginning of the century, and a comparison with its present time area makes it clear that it has considerably regressed.
Tipo: Info:eu-repo/semantics/article
Ano: 1975
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3542

Chaetognathes de quelques récoltes dans la mer des Antilles et l'Atlantique ouest tropical
Provedor de dados: 27
Autores: Furnestin, M.-L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chaetognatha [arrow worms] ASW; Caribbean AW; West Atlantic.
Ano: 1965
URL: http://www.vliz.be/imisdocs/publications/294260.pdf

Mass culture of algae: a bottleneck in the nursery culturing of molluscs
Provedor de dados: 27
Autores: Persoone, G.; Claus, C.
The controlled culture of larvae of molluscs of commercial importance (oysters, clams, etc.) till spatfall implies the daily production of substantial volumes of suitable species of microscopic algae. For economic reasons, industrial mollusc hatcheries cannot, however, upscale the very expensive indoor algal production to fulfill the increasing food demands of the growing spat. As too early transplantation of the postlarvae to the natural environment results in various technological and biological problems, the intermediate semi-controlled "nursery" culturing of the spat up to a few centimeters in length is presently more and more preconized. The different technologies utilized for nursery culturing are reviewed with special emphasis on the major problem:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae culture; Mollusc culture.
Ano: 1980
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3691

Spermatozoal morphology and ultrastructure of channel catfish, &lt;i&gt;Ictalurus punctatus&lt;/i&gt;
Provedor de dados: 27
Autores: Jaspers, E.J.; Avault, J.W. Jr.; Roussel, J.D.
The morphology, dimensions, aberrations, and ultrastructure of channel catfish (&lt;i&gt;Ictalurus punctatus&lt;/i&gt;) spermatozoa were studied. Spermatozoa of a wild catfish stock from Louisiana were compared to those of a domestic stock from Mississippi. The spermatozoon of channel catfish consists of a rounded dark head, a collar-like midpiece, and a long flagellum. The average dimensions were: head length, 2.3 µm; midpiece length, 1.6 µm; midpiece width, 3.1 µm; and flagellum length, 94.9 µm. The flagellum had the classical (2.9 + 2) axoneme. On the average, 4.7% of the spermatozoa in the fish studied were biflagellar. Each flagellum arose from an individual centriolar complex. Domestic fish stock had a higher percentage of normal gametes compared to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ictalurus punctatus.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3552

Verspreiding, ecologie en gemeenschapsstructuur van benthische copepoden in het Delta-gebied en de Eems-Dollard (Nederland)
Provedor de dados: 27
Autores: Willems, K.A.
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Benthos Community composition Distribution Ecology Copepoda [copepods] ANE; Ems-Dollard Estuary ANE; Netherlands; Delta Area.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5775

The marine microgastropods from the Northern coast of Papua New Guinea (Mollusca: Gastropoda): 1. Family: Omalogyridae (with description of two new species)
Provedor de dados: 27
Autores: Sleurs, W.J.M.
This publication deals with the Omalogyridae found off the Northern coast of Papua New Guinea.Three species have been recorded; two of them, &lt;i&gt;Omalogyra nodicarinata&lt;/i&gt; sp.nov. And &lt;i&gt;O. vangoethemi&lt;/i&gt; sp.nov. Are described as new. The validity of the genus &lt;i&gt;Ammonicera&lt;/i&gt; Vayssiere, 1893 is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Omalogyridae ISEW; Papua New Guinea.
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/254820.pdf

Feeding of the hyperbenthic mysid &lt;i&gt;Neomysis integer&lt;/i&gt; in the maximum turbidity zone of the Elbe, Westerschelde and Gironde estuaries
Provedor de dados: 27
Autores: Fockedey, N.; Mees, J.
The diet of the mysid &lt;i&gt;Neomysis integer&lt;/i&gt;in the maximum turbidity zone (MTZ) of three European estuaries (Elbe, Westerschelde and Gironde) was investigated in spring 1993. The quality and quantity of the diet were assessed through measurement of the stomach fullness and microscopical analysis of the stomach content combined with image analyses. &lt;i&gt;N. integer&lt;/i&gt; was found to be an omnivore which mainly utilizes mesozooplankton and detritus carbon pools. The quality of the diet did not differ between the sexes or between different developmental stages, although smaller individuals consumed fewer items. In all three estuaries the diet was dominated by Copepoda Calanoida (5-10 &lt;i&gt;Eurytemora affinis&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detritus feeders Feeding behaviour Food availability Food preferences Suspended organic matter Turbidity Neomysis integer (Leach; 1814) [An opossum shrimp] ANE; France; Gironde Estuary ANE; Germany; Elbe Estuary ANE; Netherlands; Westerschelde.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4015

Projekt Zee eindverslag: 1. Modelering van zee-systemen = Projet Mer rapport final: 1. Modélisation des systèmes marins
Provedor de dados: 27
Autores: Nihoul, J.C.J.
Tipo: Info:eu-repo/semantics/book
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/266894.pdf

Ecometabolism of a shallow marine lagoon at Ostend (Belgium): 1. Phytoplankton and phytobenthos dynamics
Provedor de dados: 27
Autores: Podamo, J.
Primary production parameters (numbers and identifications , pigments, photosynthesis, respiration, excretion) have been measured or estimated in a marine lagoon during 4 years. On the seasonal scale, the succession pattern shows a spring bloom in April-May, a depression in May and a summer bloom from June to August. Various nannoplanktonic flagellates are responsible for these fluctuations, which are well paralleled by photosynthetic capacity variations. Primary production was computed using a light-photosynthesis function. Photosynthetic capacities and function parameters have been determined and discussed.  On the diel scale, a strong periodicity involving natural mortality was observed and taken into account. Uptake and regeneration rates of inorganic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Belgium; Oostende; Sluice Dock.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3536

Establishment of a test guideline for the evaluation of fish tainting
Provedor de dados: 27
Autores: Poels, C.L.M.; Fischer, R; Fukawa, K.; Howgate, P.; Maddock, B.G.; Persoone, G.; Stephenson, R.R.; Bontinck, W.J.
A test guideline has been established for determining the potential of a chemical to taint seafood. This guideline, based on the exposure of fish and the evaluation of the imparted taint by a triangular test, has been evaluated in a small ring test in which five laboratories tested four chemicals with three fish species. The guideline also contains a procedure for estimating the loss of taint from the test species during a depuration phase in clean water. None of the following factors appeared to have a large or systematic effect on the evaluation of the potential to cause taint: the performing laboratory; type of water used (sea- or freshwater); fish species; evaluation by flavour or by odour; method of preparation and presentation of samples for sensory...
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3155

Improvement of grain-size analyses using the automated SEDIGRAPH 5100
Provedor de dados: 27
Autores: Wartel, S.; Barusseau, J.-P.; Cornand, L.
The method of analysing fine grained sediments is discussed and an improved technique using a water-glycerol solution of known density instead of water is proposed. Inaccuracies resulting from wet sieving may contribute to explain the observed difference between the pipette method and the Sedigraph 5100 analyses.
Tipo: Info:eu-repo/semantics/book
Ano: 1995
URL: http://www.vliz.be/imisdocs/publications/136053.pdf

Spring phytoplankton assemblages in and around the maximum turbidity zone of the estuaries of the Elbe (Germany), the Schelde (Belgium/The Netherlands) and the Gironde (France)
Provedor de dados: 27
Autores: Muylaert, K.; Sabbe, K.
In spring 1993 phytoplankton samples were taken along the longitudinal salinity gradient of the estuaries of the Elbe, Schelde and Gironde. A minimum in phytoplankton abundance, biomass and diversity was observed in the inner to upper reaches of all estuaries, suggesting massive mortality in these zones. Due to a combination of high turbidity and high river runoff, phytoplankton of the Gironde estuary differed in species composition and had lower cell abundancies and biomass compared with Elbe and Schelde. Phytoplankton structure and biomass of the polyhaline reaches of the Elbe and Schelde were quite comparable. They were characterized by the diatoms &lt;i&gt;Skeletonema costatum&lt;/i&gt; and several &lt;i&gt;Thalassiosira&lt;/i&gt; spp. and most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuaries Mortality Phytoplankton Plankton surveys Population dynamics River discharge Spring Turbidity Skeletonema costatum Thalassiosira ANE; France; Gironde Estuary ANE; Germany; Elbe Estuary Belgium; Zeeschelde.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4025

Natuurherstelplan Zeeschelde: drie mogelijke inrichtingsvarianten
Provedor de dados: 27
Autores: Van den Bergh, E.; Meire, P.; Hoffmann, M.; Ysebaert, T.J.
The Schelde estuary, with its tidal flats and marshes along an uninterrupted salinity gradient from a marine to a fresh water system, is almost unique in Europe. On top of its important contributions towards national and international biodiversity it performs multiple socio-economic functions of vital importance. To combine all these functions in a sustainable way an integrated management is needed, based on the comprehension of its functioning and aimed at an optimal tuning of all processes and functions involved. With this report we hope to initiate a productive dialogue, one step ahead towards the integrated management of the Schelde estuary. It forms part of an agreement between the Administration of Waterways and Water infrastructure and some Flemish...
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Ecosystems Nature conservation Belgium; Zeeschelde.
Ano: 1999
URL: http://www.vliz.be/imisdocs/publications/259852.pdf

Studie van de biologie en de kweek van zeebaars &lt;i&gt;Dicentrarchus labrax&lt;/i&gt; (L.) in intensieve aquacultuurcondities
Provedor de dados: 27
Autores: Verdonck, W.
In Europe. the interest in sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) as a culture fish is fast increasing. This results in a rapid expansion of sea bass culture and of that of other marine fish species. such as seabream (&lt;i&gt;Sparus aurata&lt;/i&gt;) and turbot (&lt;i&gt;Scophtalmus maximus&lt;/i&gt;). In 1983 a research project was started, with the aim of culturing sea bass in the thermal effluents of the nuclear power station at Doel. In this way the possibility of producing valuable proteins is created while at the same time thermal effluents, normally dumped as waste heat, can be put to good use. The biology of the sea bass. In the Atlantic Ocean, the distribution area for sea bass ranges from Marocco to Norway. It is also found in the...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1989
URL: http://www.vliz.be/imisdocs/publications/226670.pdf

Trends in hydroidomedusan research from 1911 to 1997
Provedor de dados: 27
Autores: Gravili, C.; Pagliara, R.; Vervoort, W.; Bouillon, J.; Boero, F.
The papers on hydroidomedusae published from 1911 to 1997 total 10,934. They have been assigned to the following categories: faunistics and systematics; sub-organismal biology; ecology; evolution; life cycles; paleontology. The general trend, comprising all papers, can be divided into four time intervals: the first (1911-1939) with an average of sixty papers/year and with a slight decrease due to First World War; the second one (1940-1947), with an average of 38 papers/year, marked by a dramatic decrease coinciding with Second World War; the period 1948-1991 shows a steady increase until the mid-Seventies, when a small decrease occurred, followed by an increasing trend reaching its apex in the late Eighties-early Ninenties with a record of 296 papers in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cnidaria [cnidarians]; Hydrozoa.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/232678.pdf

Les structures de reproduction femelles de quelques Ceramiales (Rhodophyta) des côtes du nord de la France
Provedor de dados: 27
Autores: Gillis, J.; Coppejans, E.
Aan de hand van materiaal afkomstig van de streek van Boulogne (Pas-de-Calais, Frankrijk) worden de procarpstrukturen en hun ontwikkeling tot gonimoblasten besproken van enkele genera behorend tot de Ceramiales: &lt;i&gt;Aglaothamnion, Callithamnion, Ceramium, Griffithsia, Spermothamnion, Hypoglossum, Polyneura, Polysiphonia&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant reproductive structures Ceramiales ANE; France; North.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3381

&lt;i&gt;cis&lt;/i&gt;-Canthaxanthins: unusual carotenoids in the eggs and the reproductive system of female brine shrimp &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Nelis, H.J.C.F.; Lavens, P.; Moens, L.; Sorgeloos, P.; Jonckheere, J.A.; Criel, G.R.J.; De Leenheer, A.P.
The significance of carotenoid accumulation in crustacean eggs remains obscure, particularly because neither eggs nor female animals have been found to display specific pigment patterns in relation to reproduction. We report here the first example of carotenoids found exclusively in the ovaries, the eggs, and the hemolymph, but not in the carcass of a female, reproductively active crustacean, i.e. the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; . These pigments are virtually absent in males and in immature animals and disappear very rapidly in growing nauplii following hatching of encysted embryos. Within the cysts, they are preferably localized in the yolk platelets. We have identified them as mono-&lt;i&gt;cis&lt;/i&gt;-canthaxanthins on the basis of their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal reproductive organs; Brine shrimp eggs; Carotenoids; Artemia.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3269

Marine benthic red algae (Rhodophyta) from Bulusan, Sorsogon Province, Southern Luzon, Philippines
Provedor de dados: 27
Autores: Kraft, G.T.; Millar, A.J.K.; Coppejans, E.; Hommersand, M.H.; Liao, L.; Freshwater, D.W.
The marine benthic red algae from the Bulusan coast of southeastem Luzon, Philippines are documented. Of the 130 species listed, 36 are newly recorded for the Philippines and 40 are illustrated. Corynocystis prostrata Kraft gen. et sp. nov. (Gigartinales) is herein described for the first time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera; New species; Corynocystis prostrata.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7749

&lt;i&gt;Cirrifera sopottehlersae&lt;/i&gt;, a new species of Coelogynoporidae (Plathelminthes, Proseriata) from marine sediments of the Belgian and German North Sea coast
Provedor de dados: 27
Autores: Noldt, U.; Jouk, P.E.H.
&lt;i&gt;Cirrifera sopottehlersae&lt;/i&gt; sp. n. (Proseriata, Lithophora, Coelogynoporidae) is described from marine sediments of the Belgian and German North Sea coast. The species is characterized by a cirrus which in addition to short, bent spines is armed with 4 or 6 large ax-shaped spines.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Cirrifera sopottehlersae Coelogynoporidae ANE; Belgium; Belgian Coast ANE; Germany; German Coast.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3149

Mollusques cénozoiques nouveaux ou mal connus
Provedor de dados: 27
Autores: Glibert, M.; van de Poel, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cenozoic; Fossils; Mollusca [Molluscs].
Ano: 1971
URL: http://www.vliz.be/imisdocs/publications/294768.pdf

Influence of pollution on the harpacticoid copepods of two North Sea estuaries
Provedor de dados: 27
Autores: Van Damme, D.; Heip, C.H.R.; Willems, K.A.
Seasonal monitoring of the meiobenthos in the Dutch estuaries revealed an anomaly in density and diversity of harpacticoid copepods in the Westerschelde. Another Dutch estuary, the Eems Dollard, has comparable hydrodynamical, physical and sedimentological, characteristics and a similar fauna, but even in the severely organically polluted oligohaline mudflats of this estuary, annual average density and diversity of endo-epibenthic harpacticoid communities are higher than at similar less enriched meso- to polyhaline biotopes of the Westerschelde. Besides the concentrations of inorganic pollutants, such as phosphates and nitrates, the concentration of pesticides, cyanide, detergents, phenols, oils, polychlorobenzenes, polycyclic aromatic hydrocarbons and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact Estuaries Pollution Copepoda [copepods] ANE; Netherlands; Ems-Dollard Estuary ANE; Netherlands; Westerschelde.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3337

Accumulation of trimethoprim, sulfamethoxazole, and &lt;i&gt;N&lt;/i&gt;-acetylsulfamethoxazole in fish and shrimp fed medicated &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Chair, M.; Nelis, H.J.; Leger, P.; Sorgeloos, P.; De Leenheer, A.P.
In a previous paper (H.J. Nelis, P. Léger, P. Sorgeloos, and A.P. De Leenheer, Antimicrob. Agents Chemother. 35:2486-2489, 1991) it was reported that two selected antibacterial agents, i.e. trimethoprim and sulfamethoxazole, can be efficiently bioencapsulated in nauplii of the brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; franciscana&lt;/i&gt; for administration to fish. This follow-up study showed that larvae of the sea bass and the turbot as well as postlarvae of the white shrimp accumulate the therapeutic agents in high quantities when fed medicated &lt;i&gt;A. franciscana&lt;/i&gt;. To monitor their levels as a function of time, the liquid chromatographic method originally developed for the analysis of &lt;i&gt;A. franciscana&lt;/i&gt; was modified...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2923

On the taxonomic status of the genus &lt;i&gt;Parathyone&lt;/i&gt; (Echinodermata, Holothurioidea, Dendrochirotida)
Provedor de dados: 27
Autores: Massin, C.
The genus &lt;i&gt;Parathyone&lt;/i&gt; Deichmann, 1957 encloses two species, &lt;i&gt;Parathyone surinamensis&lt;/i&gt; and &lt;i&gt;Parathyone suspecta&lt;/i&gt;, and is close to the genus &lt;i&gt;Ocnus&lt;/i&gt; Forbes, 1841. &lt;i&gt;Ekmanothyone&lt;/i&gt; nomen novum is erected to replace the pre-occupied &lt;i&gt;Parathyone&lt;/i&gt; Cherbonnier, 1988 (non &lt;i&gt;Parathyone&lt;/i&gt; Deichmann, 1957).
Tipo: Info:eu-repo/semantics/article
Ano: 1993
URL: http://www.vliz.be/imisdocs/publications/303494.pdf

On the association between the crab &lt;i&gt;Hapalonotus reticulatus&lt;/i&gt; (Crustacea, Brachyura, Eumedonidae) and the sea cucumber &lt;i&gt;Holothuria (Metriatyla) scabra&lt;/i&gt; (Echinodermata, Holothuridae)
Provedor de dados: 27
Autores: VandenSpiegel, D.; Ovaere, A.; Massin, C.
A study of the fauna associated with holothurians from Hansa Bay (Papua New Guinea) reveals a new symbiotic association between the holothuroid &lt;i&gt;Holothuria (Metriatyla) scabra&lt;/i&gt; and the crab &lt;i&gt;Hapalonotus reticulatus&lt;/i&gt;. All the collected holothurians were infested, but with only one crab per holothurian, always in the right respiratory tree near the cloaca. Because of its size, &lt;i&gt;H. reticulatus&lt;/i&gt; considerably expands the wall of the respiratory tree forming a membranaceous cyst. This association, therefore, appears to be parasitic. However, the crab does not feed upon host tissue but seems to filter its food from water passing through the respiratory tree of its host. The description of two males allows to...
Tipo: Info:eu-repo/semantics/article
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/236133.pdf

Effects of titanium dioxide industry waste dumping on sea water chemistry
Provedor de dados: 27
Autores: Roekens, E.J.; Van Grieken, R.E.
An investigation was made to determine the influence of the dumping of a 1000 ton day&lt;sup&gt;-1&lt;/sup&gt;, on the average, of acid-iron waste from the titanium dioxide industry into the shallow but turbulent Southern Bight of the North Sea. This waste contains some 20% sulphuric acid and 2% iron. After the passage of the barge that discharges 10 ton of waste min&lt;sup&gt;-1&lt;/sup&gt; into its wake, the vertical and horizontal distributions of the pH, iron-concentrations and turbidity were measured as a function of time. It appeared that a few seconds after the discharge and for a very brief period, the pH was down to approx. 4 and the Fe-concentration was 13 mg l&lt;sup&gt;-1&lt;/sup&gt;. More than 1 min after the discharge a pH below 6 and an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dumping Marine chemistry Titanium compounds ANE; North Sea; Southern Bight.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3292

Individual aerosol particle composition variations in air masses crossing the North Sea
Provedor de dados: 27
Autores: De Bock, L.A.; Van Malderen, H.; Van Grieken, R.
Single-particle analysis on North Sea and rainwater samples was performed by electron-probe X-ray microanalysis (EPXMA). The analysis was mainly focused on the determination of the inorganic composition of giant particles with diameters above 1 µm. Multivariate techniques were used for the reduction of the data set and for source apportion. Based on the relative abundances found by hierarchical cluster analyses according to the Ward error sum method, three to eight different aerosol types were distinguished. Crossing the North Sea, the changes in air mass composition appeared as a decrease in the abundance for the aluminosilicate particles and relative increase for NaCl and seawater crystallization products. Principal factor analysis revealed four...
Tipo: Info:eu-repo/semantics/article
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2570

Distribution des espèces chimiques des métaux lourds dans la colonne d'eau de la partie sud de la mer du Nord
Provedor de dados: 27
Autores: Duyckaerts, G.; Gillain, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1976
URL: http://www.vliz.be/imisdocs/publications/286397.pdf

Spatial segregation in copepod species from a brackish water habitat
Provedor de dados: 27
Autores: Heip, C.H.R.; Engels, P.
The segregation along the horizontal space dimension of the niche has been investigated in six copepod species occurring together in a brackish water habitat.All but one species show an aggregated pattern which may be described by a negative binomial distribution. The aggregations are small with a radius of 5-15 cm and are distributed randomly in the habitat. Aggregation of different species do not overlap; niche-overlap in this dimension show a somewhat wider utilization of space by the dominant species and insignificant overlap between species; there was no competition for space at the time of the investigation.
Tipo: Info:eu-repo/semantics/article
Ano: 1977
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3561

Note on the genus &lt;i&gt;Leptoconchus&lt;/i&gt; Rüppell, 1835 (Mollusca, Gastropoda, Coralliophilidae) with the description of two new species, &lt;i&gt;Leptoconchus vangoethemi&lt;/i&gt; sp.n. and &lt;i&gt;Leptococonchus cyphastreae&lt;/i&gt; sp.n. from Papua New Guinea
Provedor de dados: 27
Autores: Massin, C.
Two new species of &lt;i&gt;Leptoconchus&lt;/i&gt;, &lt;i&gt;Leptoconchus vangoethemi&lt;/i&gt;sp.n. and &lt;i&gt;Leptococonchus cyphastreae&lt;/i&gt; sp.n., from Papua New Guinea are described. Particular attention is paid to the larval shell and the burrow shape in the host coral. The host coral specificity and the taxonomic value of the larval shell are briefly discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/303467.pdf

The content of the agreements on the protection of the rivers Scheldt and Meuse
Provedor de dados: 27
Autores: Maes, F.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: International agreements Protection Rivers Belgium; Schelde R.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=466

Use and production of microalgae as food for nursery bivalves
Provedor de dados: 27
Autores: De Pauw, N.
The nutritional value of various foods and diets for juvenile bivalves is reviewed and commented. From all foods tested specific microalgues seem to be the most suited for young bivalves. Presently, serious alternatives for replacing living algae by inert, artificial feeds are practically inexistent, though research efforts are made in this direction. The various microalgae production-systems used for feeding juvenile bivalves are also reviewed. A literature survey and the COST inquiry held in 1979 by our laboratory revealed that nearly all commercial enterprises involved in nursery rearing of bivalve molluscs in Europe utilize natural phytoplankton as food. Culturing of the postlarvae is performed either &lt;i&gt;in situ&lt;/i&gt; (in the sea) or in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae culture; Food; Mollusc culture; Bivalvia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3406

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichtyan fishes. Part A: Selachii. 2a: Order: Carcharhiniformes - Family: Triakidae
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
The teeth of all genera of the Triakidae are described and illustrated with SEM-photographs. Their morphology allows a direct generic assignment.
Tipo: Info:eu-repo/semantics/article
Ano: 1988
URL: http://www.vliz.be/imisdocs/publications/294439.pdf

Het Schelde-estuarium: toekomstvisie
Provedor de dados: 27
Autores: Coosen, J.; Van den Bergh, E.; Ysebaert, T.J.; Meire, P.
Water quality improvement is the main concern of the ICBS (International Committee for the Protection of the Schelde). In 1998 the river states accepted an Action Plan that has to lead to significant improvements in overall ecological values in 2010. The challenge of water management in the estuary is working together (Flanders &amp; The Netherlands) towards an integration of three characteristic functions of the system:&lt;br&gt;- Safety against flooding;&lt;br&gt; - A good accessibility of the ports;&lt;br&gt;- Conservation of estuarine dynamics and improvement of the marine, brackish and freshwater habitats.&lt;br&gt;In order to facilitate a choice in the near future, a longterm vision has been worked out. Four alternatives are sketched, that differ in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Access; Bilateral agreements; Estuarine dynamics; Flood prevention; Habitat improvement; Harbours; Water policy; Water quality.
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280719.pdf

Increase of organochlorines and mercury levels in common guillemots &lt;i&gt;Uria aalge&lt;/i&gt; during winter in the southern North Sea
Provedor de dados: 27
Autores: Joiris, C.R.; Tapia, G.; Holsbeek, L.
Beached seabirds, mainly common guillemots Uria aalge, were collected on the Belgian coast during winter from 1990 to 1995. Concentrations of total and organic mercury, and of organochlorines (PCBs and pesticides) were determined in muscle, liver and kidney. They were high compared to summer data (up to one order of magnitude), and increased during winter. This increase is not due to changes of total body weight nor polar lipid content, and thus reflects an actual increase of the seabirds' contamination while wintering in the southern North Sea. The observed annual cycle can be understood by assuming differences in prey contamination: higher during winter in the southern North Sea ecosystem than during summer in the Atlantic water ecosystem.
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6846

Expéditions antarctiques belges 1964-1965. Bryozoaires (suite)
Provedor de dados: 27
Autores: Redier, L.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryozoa PS; Antarctica.
Ano: 1966
URL: http://www.vliz.be/imisdocs/publications/289070.pdf

Marine Gastrotricha from the Belgian coast: species list and distribution
Provedor de dados: 27
Autores: Jouk, E.H.; Hummon, W.D.; Hummon, M.R.; Roidou, E.
A list of thirty seven species of marine gastrotrichs is given, together with their occurrences at seven collection sites along the Belgian coast. Of these, twenty three species belong to the order Macrodasyida and the other fourteen to the order Chaetonotida. Twenty species were recorded only from the three sublittoral sites and four species from both zones.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gastrotricha ANE; Belgium; Belgian Coast ANE; Belgium; Zwin Belgium; Het Zwin natuurreservaat.
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/240709.pdf

Verslag van de topografische terreinopnamen op de Spuikom te Oostende, augustus 1972
Provedor de dados: 27
Autores: Depuydt, F.
Tipo: Info:eu-repo/semantics/article
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7670

Les migrations nycthémérales différentielles suivant l'âge du méroplankton
Provedor de dados: 27
Autores: Daro, M.H.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Migrations Plankton ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3481

The ultrastructure of the proboscis in &lt;i&gt;Psammorhynchus tubulipenis&lt;/i&gt; Karling, 1964 and &lt;i&gt;Cytocystis clitellatus&lt;/i&gt; Karling, 1953 (Platyhelminthes, Rhabdocoela)
Provedor de dados: 27
Autores: De Vocht, A.J.-P.
The ultrastructural organization of the proboscis in two species of free-living Platyhelminthes, &lt;i&gt;Psammorhynchus tubulipenis&lt;/i&gt; and &lt;i&gt;Cytocystis clitellatus&lt;/i&gt; is very alike but differs from previously described species. Both sheath and cone epithelium are composed of two circumferential belts. Only the basal cone epithelium is syncytial, while no nuclei were found in the distal belt of the sheath epithelium. The sheath epithelium is characterized by numerous infoldings of the basal plasma membrane. The nuclei present in the bulb belong to the proximal belt of the sheath epithelium and the apical cone epithelium. Nuclei of the basal cone epithelium are located insunk behind the proboscis bulb. The insunk cell parts pierce the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ultrastructure Cytocystis clitellatus Psammorrynchus tubulipenis Meixner; 1938.
Ano: 1990
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3078

Uptake of dissolved inorganic nitrogen in turbid, tidal estuaries
Provedor de dados: 27
Autores: Middelburg, J.J.; Nieuwenhuize, J.
Ammonium and nitrate uptake was measured in 6 European tidal estuaries (Ems, Rhine, Scheldt, Loire, Gironde and Douro) using &lt;sup&gt;15&lt;/sup&gt;N-tracer techniques. Uptake rates of ammonium and nitrate ranged from 0.005 to 1.56 µmol N l&lt;sup&gt;-1&lt;/sup&gt;h&lt;sup&gt;-1&lt;/sup&gt; and 0.00025 to 0.25 µmol N l&lt;sup&gt;-1&lt;/sup&gt; h&lt;sup&gt;-1&lt;/sup&gt;, respectively, and differed significantly between and within estuaries. Analysis of nitrogen uptake using the relative preferential index (RPI) indicated ammonium to be the preferred substrate. The turnover times of particulate nitrogen (0.7 to 31 d) and dissolved ammonium (0.1 to 27 d) were similar to or shorter than estuarine-water residence times, whereas turnover times of dissolved...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; Ems Estuary ANE; France; Gironde Estuary ANE; France; Pays de Loire; Loire Estuary ANE; Netherlands; Rhine estuary ANE; Netherlands; Westerschelde ANE; Portugal; Douro Estuary.
Ano: 2000
URL: http://www.vliz.be/imisdocs/publications/144317.pdf

Determination of methanesulfonic acid and non-sea-salt sulfate in single marine aerosol particles
Provedor de dados: 27
Autores: Kolaitis, L.N.; Bruynseels, F.; Van Grieken, R.; Andreae, M.O.
In open ocean waters the predominant volatile sulfur compound is dimethyl sulfide (DMS), representing almost 90% of the marine sulfur emissions. Methanesulfonic acid (MSA), one of the oxidation products of DMS, is consequently an important constituent of marine aerosols. Laser microprobe mass analysis (LAMMA) has been used for single-particle analysis of particles collected in the marine boundary layer. MSA, like the non-sea-salt sulfate, is mainly associated with the smallest aerosol particles, whose LAMMA spectra match the reference fingerprint spectra of MSA salts, sodium methanesulfonate and ammonium methanesulfonate. The presence of nitrate and heavy metal ions in the LAMMA spectra can reveal, to a certain extent, the degree of air pollution at the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols; Air pollution; Boundary layers; Heavy metals; Marine environment; Nitrates; Particle size; Sulphates.
Ano: 1989
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3177

Review on the dietary effects of phospholipids in fish and crustacean larviculture
Provedor de dados: 27
Autores: Coutteau, P.; Geurden, I.; Camara, M.R.; Bergot, P.; Sorgeloos, P.
A beneficial effect of dietary phospholipid (PL) supplementation in purified diets in terms of survival, growth, resistance to stress tests, and occurrence of deformities has been demonstrated in larval and juvenile stages of various species of fish and crustaceans. The exact determination of PL requirements in larvae is complicated due to the difficulty to bio-encapsulate PL in live prey. Furthermore, the great variety in purity and composition of the PL sources, and the experimental conditions (such as diet formulation and extent of co/prefeeding with live food) makes it difficult to compare requirements determined with artificial diets. Larval stages are extremely sensitive to a dietary PL deficiency and require higher levels of dietary PL than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Complex lipids; Crustacean culture; Crustacean larvae; Diets; Fish culture; Fish larvae.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2927

The Belgian mollusk fisheries
Provedor de dados: 27
Autores: Redant, F.
Bivalves and gastropods landed in Belgium are taken as a by-catch of fisheries targeting finfish or crustaceans, and the nation has never had specialized molluscan fisheries. Species landed consist mainly of whelk, &lt;i&gt;Buccinum undatum&lt;/i&gt;; and scallops, &lt;i&gt;Pecten maximus&lt;/i&gt; and &lt;i&gt;Chlamys&lt;/i&gt; spp. Long-term trends in the landings of mollusks are closely related to long-term changes in fleet and vessel size, gear types used, fishing grounds and target species, and demand on the local market. In the 1950' s, the annual landings of whelk fluctuated between 80 and 200 t, while those of scallop were insubstantial. Since then, the landings gradually rose to record figures of 678 t for whelk and 762 t for scallop in the...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/267114.pdf

Patterns of organic contaminants in marine mammals with reference to sperm whale strandings
Provedor de dados: 27
Autores: Wells, D.E.; McKenzie, C.; Ross, H.M.
Discriminant analysis has been applied to organochlorine contaminant data from a small number (&lt;i&gt;ca&lt;/i&gt; 3-25) of 12 different marine mammal species to discriminate between the species on the basis of the chlorobiphenyls (CB) patterns in blubber and account for the effects of age, sex, condition and location of the mammals. The raw data are normalised to a single congener, CB 153, to reduce the effects of life history and sex, after which the discriminant factors are plotted to display the differences between species in relation to the intake and the metabolism of chlorobiphenyls. An understanding of these differences gives a better knowledge of the relative sensibility of these species. The sperm whales were found to have the least ability to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contaminants; Contaminants; Contaminants; Discriminant analysis; Discriminant analysis; Discriminant analysis; Marine mammals; Radionuclide kinetics; Stranding.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303626.pdf

Cycle annuel de zooplankton à Boulogne-sur-Mer (Pas-de-Calais) 1970-1971: 2. L'holoplankton
Provedor de dados: 27
Autores: Hecq, J.H.
The annual cycle of the Copepods, Cladocera, Appendicularians, Chaetognatha and Cnidaria has been observed in a coastal area in front of Boulogne-sur-Mer. Four species of Copepods amount to some 70% of the whole zooplankton. These herbivorous animals become especially abundant during the phytoplankton blooms with yield which seems to be more important during the autumn than during the spring. Yearly the Appendicularians offer four maxima agreeing with the transport of patches by the currents. The Chaetognatha are only present during the autumn. The cycle of Cladocera is described with respect to their fecundity. The Ctenaria show blooms succeeding those of herbivorous animals. The study of relations between the zooplankton trophic levels suggests that, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annual variations Zooplankton ANE; France; Nord; Boulogne-sur-Mer.
Ano: 1976
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3548

Neotonchinae de la Baie de Morlaix
Provedor de dados: 27
Autores: Gourbault, N.; Vincx, M.
Six species of the family Ethmolaimidae, including the new species &lt;i&gt;Comesa platti&lt;/i&gt; sp. n., are identified from the Western part of the Channel (Baie de Morlaix). Within the genus &lt;i&gt;Comesa&lt;/i&gt;, whichhas eleven species at present, the new species is characterized by its short cephalic setae, the anterior position of the amphids, the absence of lateral differentiation and the presence of 9-11 precloacal supplements.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species; Comesa platti.
Ano: 1992
URL: http://www.vliz.be/imisdocs/publications/276509.pdf

De verborgen plantentuin op de slikken en platen van het Schelde-estuarium
Provedor de dados: 27
Autores: Sabbe, K.; Kromkamp, J.
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.vliz.be/imisdocs/publications/280705.pdf