Bibliographic Citation
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| Title | Metals in fish scales collected in Lake Opeongo, Canada, from 1939 to 1979 |
| Creator/Author | Johnson, M.G. (Dept. of Fisheries and Oceans, Burlington, Ontario (Canada)) |
| Publication Date | 1989 May 01 |
| OSTI Identifier | OSTI ID: 5760486 |
| Other Number(s) | Journal ID: ISSN 0002-8487; CODEN: TAFSA |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Transactions of the American Fisheries Society; (USA); Journal Volume: 118:3 |
| Subject | 59 BASIC BIOLOGICAL SCIENCES; 54 ENVIRONMENTAL SCIENCES; METALS; BIOLOGICAL ACCUMULATION; CADMIUM; CANADA; COPPER; FISHES; HISTORICAL ASPECTS; MERCURY; TISSUE DISTRIBUTION; TROUT; ZINC; ANIMALS; AQUATIC ORGANISMS; DISTRIBUTION; ELEMENTS; NORTH AMERICA; TRANSITION ELEMENTS; VERTEBRATES |
| Description/Abstract | Time series (1939-1979) of metal concentrations in historical collections of scales from lake trout Salvelinus namaycush and smallmouth bass Micropterus dolomieui from Lake Opeongo, Canada, were compared with temporal trends in metal concentration profiles in core samples of profundal lake sediment. There was no trend for Zn in scales. Elevated Cu and Hg concentrations occurred early in the study period in both species. Elevated Cd was found in the earliest year in smallmouth bass scales. Temporal trends in Hg (and possibly Cd) in smallmouth bass scales probably were attributable to differences in fish weight among years. The data did not support the hypothesis that temporal trends in metal loadings entering lakes are reflected by fish tissue concentrations. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: Pages: 331-335 |
| System Entry Date | 2008 Feb 07 |
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Last Updated: 11/19/2009