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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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The response of two estuarine benthic communities to the quantity and quality of food Kendall, M.A.; Davey, J.T.; Widdicombe, S. (1995). The response of two estuarine benthic communities to the quantity and quality of food. Hydrobiologia 311(1-3): 207-214. https://dx.doi.org/10.1007/BF00008581 In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, meer Is gerelateerd aan: Kendall, M.A.; Davey, J.T.; Widdicombe, S. (1995). The response of two estuarine benthic communities to the quantity and quality of food, in: Heip, C.H.R. et al. Major biological processes in European tidal estuaries. Developments in Hydrobiology, 110: pp. 207-214, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 274095 [ download pdf ]

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Trefwoorden

Aquatic communities Aquatic communities > Benthos > Zoobenthos Aquatic organisms > Food organisms Availability > Food availability Behaviour > Feeding behaviour Comparative studies Cycles > Chemical cycles > Geochemical cycle > Biogeochemical cycle > Nutrient cycles > Carbon cycle Population dynamics Trophic relationships Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries ANE, Frankrijk, Gironde estuarium [Marine Regions]; ANE, Nederland, Westerschelde [Marine Regions] Marien/Kust; Brak water

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Auteurs		Top
Kendall, M.A., meer Davey, J.T. Widdicombe, S., meer

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Abstract

Experimental manipulations of food supply were performed on soft sediment cores from two European estuaries, the Westerscheldt and the Gironde, with a view to determining benthic macrofaunal community response. Over a period of twenty weeks in a laboratory mesocosm system, both communities showed losses in terms of numbers of individuals and small, but non-significant, losses in terms of numbers of species. Whereas no effect of the different types of foods or the dose levels at which they were supplied was detected for the Westerscheldt benthic community, that of the Gironde showed some significant response. This was largely attributed to the differential mortality of spionid polychaetes across the dose levels used, with the highest dose, equivalent to 200 g C m–2 yr–1, only just maintaining their initial population densities. The results are discussed in terms of the importance of lateral advection of food particles at the benthic boundary layer and the general insufficiency of many estimates of carbon input to shallow benthic systems.

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