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| Registros recuperados: 1.500 | |
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| Léger, P.; Vanhaecke, P.; Sorgeloos, P.. |
| Freshly-hatched <i>Artemia</i> nauplii from various geographical sources survived storage in a refrigerator (2-4°C) at densities of 2000 per ml and above. Except for <i>Artemia</i> 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 <i>Mysidopsis bahia</i> M. and larval carp <i>Cyprinus carpio</i> 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 |
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| Bot, P.V.M.; Van Raaphorst, W.; Batten, S.; Laane, R.W.P.M.; Philippart, K.; Radach, G.; Frohse, A.; Schultz, H.; Van den Eynde, D.; Colijn, F.. |
| Seasonal cycles of salinity, nutrients, chlorophyll and zooplankton at 8 locations on the West-European shelf were analysed with respect to their timing and magnitude in the period 1980-1984. A late spring bloom with low chlorophyll values (2-4 mg.m-³) is observed in the Irish Sea, off the Scottish east coast and the Channel entrance. An early spring bloom and relatively high chlorophyll values (7-12 mg.m-³) are found in the southern Bight and the Skagerrak, whereas a late spring bloom with high chlorophyll concentrations (24 mg.m-³) is found along the Dutch and Belgian coast. In contrast to the other regions, the peak of the phytoplankton cycle in the German Bight (Helgoland) occurs in the summer period instead of the spring period. The peak in the yearly... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1996 |
URL: http://www.vliz.be/imisdocs/publications/256556.pdf |
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| Van Meel, L.. |
| In this work we studied some ecological factors and the floral composition of phytoplankton (micro plankton) during the 1953-1954 period. We measured successively: the temperature, the pH, the alkaline, the chlorine, the dissolved oxygen, the concentration of phosphates and nitrates. The water of the Ostend port passes the scale a-mesohaline to polyhaline. The sampling of the phytoplankton has been worked out one time or several times in a month. The Bacillariophyceae play an important role, the Dinophyceae are relatively rare, as the Chryosophyceae, and the Chlorophyceae are meeting during the whole year, with the exception of January, February and April, in little quantities, except for November. Dominant species are: <i>Coscinodiscus continues,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plankton ANE; Belgium; Oostende Harbour. |
| Ano: 1964 |
URL: http://www.vliz.be/imisdocs/publications/294269.pdf |
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| Bouillon, J.; Boero, F.. |
| The Hydrozoa, on the basis of embryological, developmental and morphological features, are considered as a superclass of the phylum Cnidaria comprising three classes: the Automedusa (with the subclasses: Actinulidae, Narcomedusae and Trachymedusae), characterised by direct development of the planula into a medusa; the Hydroidomedusa (with the subclasses: Anthomedusae, Laingiomedusae, Leptomedusae, Limnomedusae, and Siphonophorae), characterised by a polyp stage budding medusae through a medusary nodule; and the Polypodiozoa, with complex endocellular parasitic life cycles. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/303067.pdf |
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| Fiers, F.. |
| In the paper at hand, eight copepods are described from two small temporary brackish water pools at Laing Island (Papua New Guinea). Included are one cyclopoid: <i>Neocyclops papuensis</i> n. sp. and seven harpacticoids: <i>Darcythompsonia inopinata</i> Smirnov, <i>Leptocaris mucronatus</i> n. sp.; <i>Schizopera brusinae</i> Petkovski, <i>Nitocra lacrustris pacifica</i> Yeatman, <i>Nitocra laingensis</i> n. sp., <i>Phyllopodopsyllus alatus</i> n. sp. and <i>Actinocletodes woutersi</i> n. gen., n. sp. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1986 |
URL: http://www.vliz.be/imisdocs/publications/303528.pdf |
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| Dehairs, F.A.; Dedeurwaerder, H.; Dejonghe, M.; Decadt, G.; Gillain, G.; Baeyens, W.F.J.; Elskens, I.. |
| During 1980 and 1981 the aerosol burden as well as the wet and dry atmospheric fall-out of Cu, Cd, Pb, Zn, Fe and Mn to the sea have been studied in the Belgian coastal area. Atmospheric Cu, Zn and Cd are observed to be introduced into the sea mainly by wet fall-out, while Fe, Mn and also Pb have a dry and wet fall-out of similar magnitude. Of these elements, Cu, Zn and Cd have the highest washout factors. Furthermore, for all elements, excepted Mn, discrepancies exist between washout factors above land and sea, with values up to 5 times larger above the sea.On the scale of the North Sea, atmospheric fall-out of Cu, Zn, Pb and Cd exceeds by one order of magnitude the combined input of the rivers Scheldt, Rhine and Meuse, while fall-out of Fe and Mn is of... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1982 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10065 |
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| Moens, T.; Vincx, M.. |
| Respiration and food assimilation of two estuarine bacterivorous nematodes, the rhabditid <i>Pellioditis marina</i> and the monhysterid <i>Diplolaimelloides meyli</i>, were measured at a range of temperatures, salinities, and food densities. The aim of this study was to identify the fundamental niche of both species in their natural habitat, and to investigate the relative importance of food and abiotic factors in determining presence and success of nematode species in the highly dynamic estuarine tidal environments of macrophyte detrital habitats. Of the three factors studied, salinity least impacted <i>P. marina</i> and <i>D. meyli</i>. Respiration and assimilation in both species showed only minor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nematoda [Nematodes]. |
| Ano: 2000 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7422 |
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| Baeyens, W.F.J.; Van Eck, B.T.M.; Lambert, C.; Wollast, R.; Goeyens, L.. |
| A general description of the Scheldt estuary, including the hydrology, the sediment transport, the productivity and the biodegradation with respect to their influence on the trace metal behaviour in the Scheldt estuary, is given. The river basin can be divided in several sections according to their morphological, hydrodynamical and sedimentary properties. The zone from km 78 to 55, which corresponds roughly with the salinity zone from 2 to 10 psu, is the zone of high turbidity, high sedimentation and of oxygen depletion, especially in the summer period. That area is called the geochemical filter because the solid/dissolved distribution of the trace metals is controlled by redox, adsorption/desorption, complexation and precipitation/coprecipitation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Netherlands; Westerschelde. |
| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7040 |
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| 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 |
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| Ano: 1975 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3510 |
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| Registros recuperados: 1.500 | |
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