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Effects of different acids on the bluegill sunfish, Lepomis macrochirus Rafinesque
Author(s) -
Ellgaard E. G.,
Gilmore J. Y.
Publication year - 1984
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1984.tb04859.x
Subject(s) - lepomis macrochirus , biology , fish <actinopterygii> , toxicity , phosphoric acid , hydrogen ion , hydrochloric acid , zoology , environmental chemistry , fishery , ion , chemistry , inorganic chemistry , organic chemistry
The concentration of hydrogen ions which caused 50% mortality of bluegill in 96 h (96 h LC50) was between pH 3.5 and 3.0 for four acids; sulphuric, nitric, phosphoric and hydrochloric. Therefore, it appears that any contribution by the anions of these acids to fish toxicity is similar. This suggests that the quantity rather than the quality of acids is the primary factor in fish toxicity brought about by acid precipitation. At sublethal concentrations of acids, bluegill became hypoactive with respect to their swimming behaviour.