Elevated circulating erythrocyte micronuclei in fishes from contaminated sites off Southern California |
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| Institution: | 1. Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China;2. State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100049, China;3. Earthquake Administration of Qinghai Province, Xining 810001, China |
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| Abstract: | Frequencies of circulating erythrocyte micronuclei in two marine fish species from contaminated areas off southern California were elevated relative to fishes from less contaminated sites. Micronuclei frequencies from contaminated sites were four times higher in white croaker (Genyonemus lineatus) and eleven times higher in kelp bass (Paralabrax clathratus). The increased micronuclei frequency was related to previously determined environmental concentrations of chlorinated hydrocarbons (DDTs and PCBs) and polycyclic aromatic hydrocarbon metabolites. However, micronuclei frequency was only weakly correlated to individual body burdens of chlorinated hydrocarbons in white croaker as determined in this study. Applications and limitations of piscine micronucleus measurements are discussed. |
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