Retention of mercury in the muscle of yellow perch (Perca flavescens) and rock bass (Ambloplites rupestris)
- Michigan Dept. of Natural Resources, Ann Arbor
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 percent in the yellow perch and 59 percent in the rock bass; however, the mean weight of the fish increased 88 and 183 percent, 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.
- OSTI ID:
- 7238519
- Journal Information:
- Trans. Am. Fish. Soc.; (United States), Vol. 105:2
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
FISHES
CONTAMINATION
MERCURY
BODY BURDEN
ANIMAL GROWTH
DILUTION
MUSCLES
QUANTITY RATIO
RETENTION
WATER POLLUTION
ANIMALS
AQUATIC ORGANISMS
ELEMENTS
GROWTH
METALS
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