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Effects of manipulation of food supply on estuarine meiobenthos Austen, M.C.; Warwick, R.M. (1995). Effects of manipulation of food supply on estuarine meiobenthos. Hydrobiologia 311(1-3): 175-184. https://dx.doi.org/10.1007/BF00008579 In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, meer Is gerelateerd aan: Austen, M.C.; Warwick, R.M. (1995). Effects of manipulation of food supply on estuarine meiobenthos, in: Heip, C.H.R. et al. Major biological processes in European tidal estuaries. Developments in Hydrobiology, 110: pp. 175-184, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 274104 [ download pdf ]

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Trefwoorden

ANE, France, Gironde Estuary ANE, Netherlands, Westerschelde Aquatic communities > Benthos > Meiobenthos Availability > Food availability Behaviour > Feeding behaviour Environments > Aquatic environment > Benthic environment Nematoda [WoRMS] Gironde estuarium [Marine Regions]; Westerschelde [Marine Regions] Marien/Kust; Brak water

Author keywords

MEIOFAUNA; MESOCOSM; COMMUNITIES; FOOD; ORGANIC MATTER; NEMATODES

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Auteurs		Top
Austen, M.C. Warwick, R.M.

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Abstract

A comparative mesocosm experiment was carried out to determine the effects of natural foods of different quality and quantity on the structure of natural meiobenthic communities collected in undisturbed sediment from the polluted Westerschelde and the comparatively undisturbed Gironde estuaries. Nematode communities are more diverse and species rich in the latter estuary. The organic matter or foods used were phytoplankton, green alga, salt marsh plant detritus and leaf litter detritus which were added at three dose rates including a high dose. There was no change in community structure in response to the treatments in either of the estuarine meiobenthic communities. Analysis of all the results from this experiment indicate that the food quantity manipulations had almost no effect on the deposit feeding meiofauna. It may be that the reserves of organic matter within the sediment were sufficient to satisfy their dietary requirements for the duration of the experiment. The abundance of diatom/epigrowth feeding nematodes which were initially dominant in the Gironde, declined substantially suggesting that they may have been food limited since diatoms were not among the sources of organic matter added to the mesocosm. There was no specific response to the five different types of organic matter added to the mesocosm.

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