Short-term toxicological effects of cadmium on the woodlouse, Porcellio laevis (Crustacea, Isopoda).

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作   者：

Odendaal JP;  Reinecke AJ; 

作者机构：

Department of Zoology;  Matieland;  South Africa.;  University of Stellenbosch;  7602; 

关键词：

Crustacea;  镉化合物;  Soil Pollutants;  cadmium sulfate;  甲壳纲;  硫酸盐类;  Sulfates;  Cadmium Compounds;  土壤污染物; 

期刊名称：

Ecotoxicology and Environmental Safety

i s s n：

0147-6513

年卷期：

1999 年 43 卷 1 期

页   码：

30-34

页   码：

摘   要：

Terrestrial isopods have been used in a number of studies as test organisms concerning the effects of chemicals in a (eco-)toxicological context. They are saprophages, which are in direct contact with polluted plant material. Cadmium is a metal with no known biological function and is toxic to life. There are a variety of anthropogenic sources of cadmium in the environment. The aims of this study were to determine the LC50 for cadmium sulfate for Porcellio laevis and the acute effect of this metal salt on the mass of this species and also to determine if P. laevis could distinguish and avoid cadmium sulfate-contaminated leaves. Acute toxicity tests and behavioral tests were conducted using concentrations ranging from 10,000 to 40,000mg/kg cadmium sulfate. The LC50 obtained of 26,700 mg/kg cadmium sulfate is an indication of P. laevis' tolerance to cadmium contamination. P. laevis also exhibited the ability to distinguish and avoid leaves contaminated with high cadmium sulfate levels. Copyright 1999 Academic Press.