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USGS · 1000326

Effect of temperature on accumulation of methylmercuric chloride and p,p'DDT by rainbow trout (Salmo gairdneri)

Robert E. Reinert·Linda J. Stone·Wayne A. Willford
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Abstract

Amounts of mercury and DDT residues accumulated from water by yearling rainbow trout ( Salmo gairdneri ) in the laboratory increased as water temperature increased. Fish exposed to methylmercuric chloride at concentrations of 234&ndash;263 parts per trillion for 12&ensp;wk at 5, 10, and 15&ensp;C accumulated 1.19, 1.71, and 1.96&ensp;ppm; fish exposed to p , p &prime;DDT at concentrations of 133&ndash;176 parts per trillion accumulated 3.76, 5.93, and 6.82&ensp;ppm. Concentrations of mercury accumulated by the fish were significantly different ( P &ensp;<&ensp;0.01) at each of the three temperatures, and the concentrations of DDT were significantly different at 5 and 10 and 5 and 15&ensp;C. Throughout the period of exposure, the concentration factors (concentration of contaminant in the fish/concentration in water) at each of the three temperatures were far higher for p , p &prime;DDT than for methylmercuric chloride.

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Robert E. Reinert, Linda J. Stone, Wayne A. Willford. 1974. Effect of temperature on accumulation of methylmercuric chloride and p,p'DDT by rainbow trout (Salmo gairdneri). https://doi.org/10.1139/f74-207

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