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Destabilization of cohesive intertidal sediments by infauna

De Deckere, E.M.G.T. and Tolhurst, T.J. and Brouwer De, J.F.C. (2001) Destabilization of cohesive intertidal sediments by infauna. Estuarine Coastal and Shelf Science, 53, 665-669. ISSN 0272-7714.

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Bioturbation activity was reduced in four plots on an intertidal mudflat in the Humber estuary (UK) during 4 days, by spraying the sediment with an insecticide, namely vydate. Macrofaunal, especially Nereis diversicolor and oligochaeta, and meiofaunal densities decreased, while the diatom biomass did not change. This resulted in a 300% increase in sediment stability, caused by a reduction in bioturbation and grazing pressure and a decrease in the water content [KEYWORDS: sediment stability, benthos, erosion, intertidal flats, Humber]

Item Type:Article
ID Code:10996
Deposited On:24 Nov 2011 01:00
Last Modified:24 Apr 2012 16:36

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