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Relation between trophic position and mercury accumulation among fishes from the Tongue River Reservoir, Montana

Journal Article · · Environ. Res.; (United States)
; ;
Concentrations of total mercury were determined in muscle tissue from northern pike (Esox lucius), sauger (Stizostedion canadense), walleye (S. vitreum), black crappie (Pomoxis nigromaculatus), and white crappie (P. annularis) collected from the Tongue River Reservoir, Montana, prior to extensive surface coal-mine development in the region. Mercury concentrations in fish flesh increased with fish size and age; larger individuals of all five species exceeded the US Food and Drug Administration's mercury concentration guideline of 0.5 ..mu..g/g. The rate of mercury accumulation was faster in the piscivorous species (northern pike, saugers, and walleyes) than in the planktivores (black crappies and white crappies). Differences in mercury uptake rates among the various species appeared to be directly related to the quantity of mercury eaten; results are discussed in relation to published models of mercury accumulation by fishes.
Research Organization:
Montana State Univ., Bozeman
OSTI ID:
6865561
Journal Information:
Environ. Res.; (United States), Journal Name: Environ. Res.; (United States) Vol. 22:1; ISSN ENVRA
Country of Publication:
United States
Language:
English

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Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
BODY
BUILDUP
ELEMENTS
FISHES
MERCURY
METALS
MONTANA
MUSCLES
NORTH AMERICA
ROCKY MOUNTAIN REGION
TISSUES
TOXICITY
USA
VERTEBRATES