Destabilization of cohesive intertidal sediments by infauna

被引：118

作者：

de Deckere, EMGT

Tolhurst, TJ

de Brouwer, JFC

机构：

[1] Netherlands Inst Ecol, Ctr Estuarine & Coastal Ecol, NL-4400 AC Yerseke, Netherlands

[2] Univ St Andrews, SERG, Gatty Marine Lab, St Andrews KY16 8LB, Fife, Scotland

来源：

ESTUARINE COASTAL AND SHELF SCIENCE | 2001年 / 53卷 / 05期

关键词：

sediment stability; benthos; erosion; intertidal flats; Humber;

D O I：

10.1006/ecss.2001.0811

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

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. (C) 2001 Academic Press.

引用

页码：665 / 669

页数：5

共 26 条

[21] Measuring the in situ erosion shear stress of intertidal sediments with the Cohesive Strength Meter (CSM) [J].