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The mobile epibenthic fauna of soft bottoms in the Dutch Delta (south-west Netherlands): spatial structure
Hamerlynck, O.; Hostens, K.; Arellano, R.V.; Mees, J.; Vandamme, P.A. (2003). The mobile epibenthic fauna of soft bottoms in the Dutch Delta (south-west Netherlands): spatial structure, in: Hostens, K. The demersal fish and macro-invertebrate assemblages of the Westerschelde and Oosterschelde estuaries (Southern Bight of the North Sea) = De demersale vis- en macro-invertebraten gemeenschappen van de Westerschelde en Oosterschelde estuaria (Zuidelijke Bocht van de Noordzee). pp. 27-38
In: Hostens, K. (2003). The demersal fish and macro-invertebrate assemblages of the Westerschelde and Oosterschelde estuaries (Southern Bight of the North Sea) = De demersale vis- en macro-invertebraten gemeenschappen van de Westerschelde en Oosterschelde estuaria (Zuidelijke Bocht van de Noordzee). PhD Thesis. Universiteit Gent. Faculteit Wetenschappen: Gent. XVI, 205, 1 cd-rom pp.
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Keywords
    Coastal zone
    Fisheries > Demersal fisheries
    Pollution
    Water > Shallow water
    Crustacea [WoRMS]
    ANE, Netherlands, Westerschelde [Marine Regions]; ANE, North Sea [Marine Regions]
    Marine/Coastal; Brackish water
Authors  Top 
  • Hamerlynck, O., more
  • Hostens, K., more
  • Arellano, R.V.
  • Mees, J., more
  • Vandamme, P.A.
Abstract
    During 1989 monthly beam trawl samples were collected at 48 stations in the Dutch Delta. The annual mean densities of the demersal fishes and mobile epibenthic invertebrates at these stations were calculated. These data were then subjected to multivariate statistical techniques for an analysis of the spatial structure of the communities found and to study the relationship between these communities and their environment. The present study confirms the results of HENDERSON (1989) that, given a fairly limited number of environmental variables, mainly salinity and exposure/substratum type, quite accurate predictions of the type of community expected at a certain site can be made. The explicit inclusion of epibenthic invertebrates, a dominant group in most assemblages, in studies mainly targeted at demersal fishes, is strongly recommended. In the Dutch Delta rich and varied communities exist in the Voordelta. A number of groups, such as salmonids, anadromous species and starfish, expected in the Westerschelde are absent or extremely rare probably as a consequence of pollution stress. The Oosterschelde is relatively poor in density terms but has a highly diverse epibenthic fauna dominated by fishes.
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