Temperature and accumulation of DDT by sea mullet (Mugil cephalus L.) |
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| Authors: | JH Powell DR Fielder |
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| Institution: | Department of Zoology, The University of Queensland, St. Lucia 4067, Australia |
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| Abstract: | Accumulation of tech-DDT by the sea mullet Mugil cephalus L. was investigated at 15, 20, 25 and 30°C. Tissue residues of p,p′-DDT in fish increased with temperature reflecting an increase in metabolic rate. Metabolic degradation of p,p′-DDT to p,p′-DDD was also indicated. Rate of uptake of p,p′-DDT (mg kg?1 h?1) was not positively correlated with temperature and decreased with time at 15, 25 and 30°C. These results suggest that the uptake of DDT from water can be regulated by M. cephalus. |
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