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Kinetic analysis of the swimming behaviour of bluegill sunfish, Lepomis macrochirus Rafinesque, exposed to copper: hypoactivity induced by sublethal concentrations
Author(s) -
Ellgaard E. G.,
Guillot J. L.
Publication year - 1988
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.1095-8649.1988.tb05503.x
Subject(s) - hypoactivity , lepomis macrochirus , copper , biology , toxicology , zoology , locomotor activity , fish <actinopterygii> , endocrinology , fishery , chemistry , organic chemistry
The concentration of copper which caused 50% mortality of bluegill in 96 h (96‐h LC50) was between 4 and 16 ppm of the metal, copper. During the 6–8 day treatment period, sublethal concentrations of copper elicited a hypoactive locomotor response which was dependent on both concentration and time of exposure. Fish treated in 0.04, 0.08 and 0.4 ppm of copper were only 67, 61 and 44% as active, respectively, as they were prior to treatment. Locomotor activity decreased dramatically during the first 4 days of exposure to copper and remained low during further exposure.