Assessment of tolerant sunfish populations (Lepomis sp.) inhabiting selenium-laden coal ash effluents. 1. Hematological and population level assessment

Ecotoxicology and Environmental Safety
T W LohnerL A Rose

Abstract

Sunfish were collected from coal ash effluent-receiving streams and Ohio River watershed reference sites to assess the effects of exposure to low-level selenium concentrations. Selenium, copper, and arsenic concentrations were statistically higher in tissue samples from exposed fish than in reference fish. Leukopenia, lymphocytosis, and neutropenia were evident in exposed fish and were indicative of metal exposure and effect. White blood cell counts and percent lymphocyte values were significantly correlated with liver selenium concentrations. Plasma protein levels were significantly lower in exposed fish than in fish from the Ohio River, indicating that exposed fish may have been nutritionally stressed. Condition factors for fish from the ash pond-receiving streams were the same as, or lower than, those of fish from the reference sites. There was no evidence that the growth rate of fish in the receiving streams differed from that of fish in the reference streams. Despite liver selenium concentrations which exceeded reported toxicity thresholds and evidence of significant hematological changes, there were no significant differences in fish condition factors, liver-somatic indices, or length-weight regressions related to selenium.

Citations

Sep 1, 2015·Journal of Environmental Health Science & Engineering·Ali Louei MonfaredMinoo Shaddel
Nov 30, 2012·Archives of Environmental Contamination and Toxicology·T R AmbiliR K Poopal
Sep 14, 2014·Fish Physiology and Biochemistry·Robson SerianiMaria José Tavares Ranzani-Paiva
Apr 20, 2010·Journal of Environmental Quality·Alex DellantonioWalter W Wenzel
Oct 29, 2014·Integrated Environmental Assessment and Management·Rick M SherrardMark S Greeley
May 21, 2013·Environmental Toxicology and Chemistry·Ryan R OtterFrank C Bailey
Apr 5, 2016·Environmental Science and Pollution Research International·Jing WangChao Wang
Jul 5, 2019·Ecotoxicology and Environmental Safety·Stephanie D GravesDavid M Janz
Jul 6, 2010·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Zhi-Hua LiTomas Randak

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