Uptake of36Cl-toxaphene in mosquito fish,Gambusia affinis

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Abstract
Summary The toxicity syndrome of toxaphene to G.affinis was divided into 5 stages, and the residue level at each stage was determined. By the time fish were exhibiting the first toxicity response (stage 2), 90.3% of the mean fatal residue level had been sorbed. Regression analysis indicated that sorption of toxaphene is a linear function with respect to time. Excretion was not observed following an 8 hour exposure to 2ppm toxaphene. Metabolic alteration of toxaphene during the experiments appeared to be minimal. Differences in individual mortality-appeared to be due to differences in uptake rather than differences in ability to tolerate particular body loads of toxaphene.