Consulta: creatorFacets:"Sorgeloos, P."
Registros recuperados: 251
Data/hora: 06/06/2024 00:34:39

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

(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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

&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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

&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

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

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

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

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

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

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

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

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

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

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

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

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

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

&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

&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

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

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