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Rainbow Trout Gills Are a Sensitive Biomarker of Short-Term Exposure to Waterborne Copper

Citation

Daglish, RW and Nowak, BF, Rainbow Trout Gills Are a Sensitive Biomarker of Short-Term Exposure to Waterborne Copper, Archives of Environmental Contamination and Toxicology, 43, (1) pp. 98-102. ISSN 0090-4341 (2002) [Refereed Article]

DOI: doi:10.1007/s00244-002-1184-5

Abstract

Hepatic copper levels may not indicate short-term exposure to waterborne copper in teleosts. Significantly higher copper loads were found in the gills of rainbow trout exposed to 105 μg · L-1 total measured copper for a period of 24 h than in control animals where no differences were recorded in hepatic copper levels. A second experiment exposing trout to 153 μg · L-1 total measured copper also demonstrated significant differences in branchial copper levels between control and exposed animals after 3 h exposure. The ratio of the copper load in the gills to the liver, and copper/zinc ratios of the gills were also examined. After exposure to 105 μg · L-1 for 24 h both gill/liver copper ratios and Cu/Zn ratios in exposed animals were significantly greater than in control animals. After 12 h exposure to 153 μg · L-1 total measured copper the gill Cu/Zn ratio was significantly greater than in control animals. These data indicate the gills may be a better indicator of short-term exposure than the liver.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Fisheries - Aquaculture not elsewhere classified
Author:Daglish, RW (Mr Ross Daglish)
Author:Nowak, BF (Professor Barbara Nowak)
ID Code:23888
Year Published:2002
Web of Science® Times Cited:5
Deposited By:TAFI - Aquaculture
Deposited On:2002-08-01
Last Modified:2003-05-28
Downloads:0

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