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Retention of Mercury in the Muscle of Yellow Perch (Perca flavescens) and Rock Bass (Ambloplites rupestris)
Author(s) -
Laarman Percy W.,
Willford Wayne A.,
Olson James R.
Publication year - 1976
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1976)105<296:romitm>2.0.co;2
Subject(s) - perch , mercury (programming language) , fishery , bass (fish) , biology , zoology , fish <actinopterygii> , computer science , programming language
Mercury‐contaminated yellow perch (Perca flavescens) and rock bass (Ambloplites rupestris) were collected from Lake St. Clair and stocked in two earthern ponds in September 1970. Twenty‐six months later, concentrations of total mercury in the fillets had declined 53% in the yellow perch and 59% in the rock bass; however, the mean weight of the fish increased 88 and 183%, respectively, during the same period. All of the reduction in mercury concentrations was attributable to dilution by growth. Slight discrepancies between the theoretical and observed reduction of mercury concentrations suggest an initial redistribution of residues from other tissues to the muscle and a continued incorporation of background amounts of mercury during growth.