Parental transfer of organic contaminants to young-of-the-year spottail shiners, Notropis hudsonius

Homogenized samples from gonads and bodies of gravid adult female spottail (Notropis hudsonius) taken from near Sheldon port, Michigan lake and from Saginaw bay, Huron lake, between May and June 1985 and from bodies of young of the year (YOY) taken from the same sites between late August and early O...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1991-05, Vol.46 (5), p.745-750
Main Authors: NOGUCHI, G. E, HESSELBERG, R. J
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Body Burden
Cyprinidae - growth & development
Cyprinidae - metabolism
DDT - metabolism
Dieldrin - metabolism
Environmental Exposure
Environmental pollutants toxicology
Female
Male
Medical sciences
Polychlorinated Biphenyls - metabolism
Toxicology
Water
Water Pollutants, Chemical - metabolism
Water Pollutants, Chemical - pharmacokinetics
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Summary:Homogenized samples from gonads and bodies of gravid adult female spottail (Notropis hudsonius) taken from near Sheldon port, Michigan lake and from Saginaw bay, Huron lake, between May and June 1985 and from bodies of young of the year (YOY) taken from the same sites between late August and early October, 1985, were analysed for PCB, total DDT and dieldrin residues. PCB concentrations in YOY were significantly higher in Saginaw bay (777 ng per g wet weight) than in Michigan lake (163 ng per g wet weight), even though concentrations in adults were similar. Dieldrin and total DDT concentration in spottail shiners in Michigan lake were higher than those in Saginaw bay. Parental transfer was responsible for a small percentage (below 0.05 to 9.6 per cent) of the contaminant burden of YOY due to small egg sizes (0.7-1 mm) and to rapid growth after hatching of larvae and YOY. Results were compared with those from other workers on lake trout (Salvelinus namaycush). The transfer levels were inversely related to YOY size and contaminant concentration and positively related to the contaminant concentration in the gonads (eggs). Possible bias in the results due to the described method of calculating parental contribution is discussed. YOY spottail shiners were considered suitable as biomonitors.
ISSN:0007-4861
1432-0800
DOI:10.1007/BF01689962