Organochlorine Residues, Mercury, Copper and Cadmium in Yellow Perch, White Bass and Smallmouth Bass, Long Point Bay, Lake Erie
作者:
JohnR.M. Kelso,
Richard Frank,
期刊:
Transactions of the American Fisheries Society
(Taylor Available online 1974)
卷期:
Volume 103,
issue 3
页码: 577-581
ISSN:0002-8487
年代: 1974
DOI:10.1577/1548-8659(1974)103<577:ORMCAC>2.0.CO;2
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Three collections of yellow perch, white bass and smallmouth bass were made in May, July and late October for analyses of DDT, PCB, mercury, copper and cadmium. Fat content varied seasonally among collections, lowest in spring and highest in fall. Total DDT residues were low for all species. Means ranged from 0.09 to 0.27 μg/g and exhibited no seasonal changes. No difference among species existed for DDT in spite of differing fat content, but concentrations within a species increased with increasing fat and subsequently age. PCB's were up to 6.5 times greater than DDT levels. PCB residues, lowest in yellow perch and highest in white bass, did not vary with season but increased with increasing fat. Dieldrin was low and no trends relating to season or fat were apparent.
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