Effects of the organophosphorous pesticide, dimethoate, on cardiac and acetylcholinesterase (AChE) activity in the shore crab Carcinus maenas

A.K. Lundebye, Timothy Curtis, J. Braven, M.H. Depledge

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Abstract

The potential use of biochemical and physiological responses as biomarkers of organophosphate exposure and/or effect were assessed in the shore crab (Carcinus maenas). Male crabs were assigned to one of four dimethoate treatments (0, 0.5, 1.0 or 2.0 mg 1(-1)). Cardiac activity was measured non-invasively before and during dimethoate exposure using automated interpulse duration assessment. Heart rates decreased significantly in a concentration-dependent manner (p
Original languageEnglish
Pages (from-to)23-36
Number of pages14
JournalAquatic Toxicology
Volume40
Publication statusPublished - 1997

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