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Changes in marsh nekton communities along the salinity gradient of the Schelde river, Belgium and The Netherlands Hampel, H.; Cattrijsse, A.; Mees, J. (2004). Changes in marsh nekton communities along the salinity gradient of the Schelde river, Belgium and The Netherlands. Hydrobiologia 515(1-3): 137-146. https://dx.doi.org/10.1023/b:hydr.0000027325.16156.6c In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 98874 [ download pdf ]

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Trefwoorden

Aquatic communities > Nekton Gradients > Salinity gradients Nets Water bodies > Inland waters > Wetlands > Marshes ANE, België, Zwin [Marine Regions]; ANE, Nederland, Westerschelde [Marine Regions]; België, Schelde R. [Marine Regions]; Belgium, Het Zwin natuurreservaat Marien/Kust; Brak water

Author keywords

marsh habitat types; salinity gradient; nekton; Schelde

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Auteurs		Top
Hampel, H. Cattrijsse, A. Mees, J.

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Abstract

Nekton was sampled in five marshes along the salinity gradient of the Schelde River. The utilisation of three different habitats (large and small creek, marsh pond) by fish and macrocrustacean species was compared among the five sampling sites. In the larger channels fyke nets were deployed to capture fish and macrocrustaceans leaving the marsh at ebb while block nets were set in smaller intertidal creeks. Fish traps passively sampled fish and shrimp in the marsh ponds. The tidal freshwater marsh had a species poor fauna and only a low number of fish was caught. Besides some freshwater species (Alburnoides bipunctatus, Carassius carassius) the European eel, Anguilla anguilla was still present. The four other marshes had a similar community structure although Platichthys flesus was absent from the euhaline area. Among fish species, dominance of Dicentrarchus labrax, Platichthys flesus and Pomatoschistus microps was observed. Carcinus maenas and Palaemonetes varians were the most abundant macrocrustacean species in every marsh. Between the large and small intertidal creeks there was no difference in nekton species composition. The main species used both habitats. Marsh ponds were utilized intensively only by two species, Pomatoschistus microps and Palaemonetes varians in every marsh.

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