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Van Damme, P.A.; Ollevier, F.P.. |
Two species of <i>Lernaeocera</i> are present in the southeastern North Sea. <i>Lernaeocera lusci</i> infects bib <i>Trisopterus luscus</i>, dragonet <i>Callionymus lyra</i> and sand goby <i>Pomatoschistus minutus. L. minuta</i> is a junior synonym of <i>L. lusci.</i>. The second valid species, <i>L. branchialis</i>, infects whiting <i>Merlangius merlangus</i>. The two species can be morphologically separated by the antennary processes, which are present in <i>L. lusci</i> and absent in <i>L. branchialis</i>. Discriminant functions allow complete separation between <i>L. lusci</i> and <i>L. branchialis</i>. There... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lernaeocera Blainville; 1822. |
Ano: 1995 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3130 |
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Maes, J.; Taillieu, A.; Van Damme, P.A.; Ollevier, F.P.. |
Fykes were used to monitor the fish and crustacean fauna of the mudflats of the Zeeschelde between April 1995 and December 1996. Overall 38 species were recorded; the number of species was greater in the brackish water part than in the fresh water part probably due to reduced oxygen concentrations in the upper reaches of the river. In terms of wet weight, just 6 species accounted for more than 96% of the total annual catch. These species are shore crab, eel, flounder, common shrimp, sole and bass. Clear seasonal patterns in the community structure were not identified. It is argued that the selectivity of the fishing gear is mainly responsible for the dominance of a few species and the lack of a temporal structure. |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1409 |
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Van Damme, P.A.; Hostens, K.; Ollevier, F.P.. |
In the 19th century approximately 40 fish species (excluding freshwater species) were recorded in the lower Zeeschelde between the Dutch/Belgian border and Antwerpen. In comparison with the 19th century and the first half of the 20th century the total number of fish species in the Beneden-Zeeschelde has decreased considerably. The present checklist (1991-1993) of fishes of the lower Zeeschelde (excluding freshwater species) contains only 26 species. The fish community is composed of marine species (13), catadromous species (3), estaurine residents (9) and one anadromous fish species. Besides, 6 freshwater fis species have presently been recorded. The distribution of diadromous fishes, estaurine residents and freshwater fishes is probably greately affected... |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1994 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=1575 |
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