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The mysid-feeding guild of demersal fishes in the brackish zone of the Westerschelde estuary OMA
Hostens, K.; Mees, J..
The demersal fish fauna of the mesohaline zone of the Westerschelde estuary (south-west Netherlands) was sampled intensively in the period 1990-1992. Almost 500 beam trawl samples were taken in both subtidal (330 samples) and intertidal (144 samples) habitats. These yielded 44 fish species, mostly as juveniles. The area functioned as a nursery for several demersal fish species, and harboured large populations of hyperbenthic mysids. Three gobies, three flatfish, one clupeoid and one gadoid dominated the fish fauna, while three mysid species were important components of the holohyperbenthos. From c. 1500 stomach contents of 25 fish species, 44 prey species were identified, the most abundant of which were also common in the hyperbenthal. The demersal fish...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological sampling Brackishwater fish Demersal fisheries Estuaries Feeding Feeding behaviour Population dynamics Predation Prey selection Clupea harengus Eurytemora affinis Gastrosaccus spinifer (Goës; 1864) Merlangius merlangus [Whiting] Mesopodopsis slabberi (Van Beneden; 1861) Neomysis integer (Leach; 1814) [An opossum shrimp] Pleuronectes flesus (Linnaeus; 1758) [Flounder] Pleuronectes platessa [Plaice] Pomatoschistus lozanoi (de Buen; 1923) [Lozano's goby] Pomatoschistus minutus (Pallas; 1770) [Sand goby] Temora longicornis (Müller; 1792) Trigla lucerna Linnaeus; 1758 Trisopterus luscus (Linnaeus; 1758) ANE; Netherlands; Westerschelde ANE; Netherlands; Zeeland.
Ano: 1999 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4018
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Bijdrage tot de kennis der mariene fauna van de Belgische kust: 4. De bestrijding van de oesterplaag <i>Crepidula fornicata</i> L. in de Spuikom te Oostende OMA
Polk, P..
Tipo: Info:eu-repo/semantics/article Palavras-chave: Introduced species Oyster culture Pest control Crepidula fornicata (Linnaeus; 1758) ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1962 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7927
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Bijdrage tot de kennis der mariene fauna van de Belgische kust (III). Waarnemingen aangaande het voorkomen, de voortplanting, de settling en de groei van <i>Crepidula fornicata</i> (L.) OMA
Polk, P..
1. For the first time, <i>Crepidula fornicata</i> was observed in Belgium on 28-9-1911; in 1959, it became an oyster pest. 2. It was first introduced into Belgium with seed oysters from Great Britain. Later on, with seed oysters from the Netherlands. 3. Probably, the geographical spreading is caused by the adult animals attached to oysters. Larval propagation is responsible for local extension. 4. In the sluice-dock at Ostend, larvae occur from the middle of May till the end of November; they swim freely for a period of about 12 days. The first massive emission of larvae is observed during May and June, a second one in September. 5. The larvae settle preferentially at a depth of 65 cm. 6. Maximum settling takes place in May. It then decreases...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Introduced species Crepidula fornicata (Linnaeus; 1758) ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1962 URL: http://www.vliz.be/imisdocs/publications/256254.pdf
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Growth, feeding, production, and consumption in 0-group bib (<i>Trisopterus luscus</i> L.) and whiting (<i>Merlangius merlangus</i> L.) in a shallow coastal area of the south-west Netherlands OMA
Hamerlynck, O.; Hostens, K..
In 1988 juvenile bib (<i>Trisopterus luscus</i>) and whiting (<i>Merlangius merlangus</i>) were studied in a shallow coastal area by monthly sampling with fine-meshed nets. 0-group fish of both species are first caught in May. By the end of the first growth season bib reached about 150mm SL (standard length), whiting about 170mm SL. Maximal densities were recorded in June and by the end of the year most fish had left the area. The instantaneous mortality is estimated at 0.008 day<sup>-1</sup> (0.77% day<sup>-1</sup> for bib and 0.76% day<sup>-1</sup> for whiting) for both species. In May both species depended almost exclusively on calanoid copepods. In June and July mysids and amphipods were the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diets Feeding Food conversion Growth Juveniles Marine fish Nursery grounds Predation Merlangius merlangus [Whiting] Trisopterus luscus (Linnaeus; 1758) ANE; Netherlands.
Ano: 1993 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2694
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