Experimental and field studies of effects of dichlorvos exposure on acetylcholinesterase activity in the gills of the mussel, Mytilus edulis L

被引：43

作者：

McHenery, JG ^{[1
]}

LinleyAdams, GE ^{[1
]}

Moore, DC ^{[1
]}

Rodger, GK ^{[1
]}

Davies, IM ^{[1
]}

机构：

[1] SOAEFD MARINE LAB,ABERDEEN AB11 9DB,SCOTLAND

来源：

AQUATIC TOXICOLOGY | 1997年 / 38卷 / 1-3期

关键词：

dichlorvos; Mytilus; toxicity; acetylcholinesterase;

D O I：

10.1016/S0166-445X(96)00834-X

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Dichlorvos (DDVP) is an organophosphate medicine, used to treat ectoparasitic sea lice infestations of farmed salmon. Effects of this chemical on a non-target organism were investigated. Experimental exposure of mussels (Mytilus edulis L.) to dichlorvos (DDVP) resulted in changes in gill acetylcholinesterase (AChE) activity with a hermetic increase at lower concentrations, and 50% inhibition at 3.6 mu g l(-1) after 24 h exposure. Repeat exposures resulted in cumulative inhibition. Twenty-four hour exposure to DDVP impaired the ability to close shells (EC50 of 1700 mu g l(-1)) and caused mortalities at high concentrations (LC50 of 8200 mu g l(-1)). AChE levels in mussels collected from sea lochs were indicative of DDVP inhibition related to the quantities of DDVP used. The use of AChE as a sublethal indicator of DDVP usage in the field is discussed. Crown Copyright (C) 1997 Published by Elsevier Science B.V.

引用

页码：125 / 143

页数：19

共 32 条

[1]

Basha S.M., 1987, Environment and Ecology (Kalyani), V5, P514

[2] DEGRADATION OF BACTERIA BY MYTILUS-EDULIS [J].