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Effects of freshwater exposure to arsenic trioxide on the parr‐smolt transformation of coho salmon (Oncorhynchus kisutch)

Effects of freshwater exposure to arsenic trioxide on the parr‐smolt transformation of coho... The effects of chronic (6 months) exposure to arsenic trioxide in fresh water on the Parr‐smolt transformation of coho salmon (Oncorhynchus kisutch) were evaluated. Exposure to 300 μg As/L (as As2O3) appeared to delay the onset of the normal increase in plasma thyroxine concentration and cause a transient reduction of gill Na+,K+‐ATPase activity. Fish exposed to 300 μg As/L also migrated to the sea less successfully than did nonexposed smolts, but there were no effects on the survival and growth of smolts held in 28‰ salt water for 6 months. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environmental Toxicology and Chemistry Oxford University Press

Effects of freshwater exposure to arsenic trioxide on the parr‐smolt transformation of coho salmon (Oncorhynchus kisutch)

 
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References (9)

Publisher
Oxford University Press
Copyright
Copyright © 1984 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0730-7268
eISSN
1552-8618
DOI
10.1002/etc.5620030116
Publisher site
See Article on Publisher Site

Abstract

The effects of chronic (6 months) exposure to arsenic trioxide in fresh water on the Parr‐smolt transformation of coho salmon (Oncorhynchus kisutch) were evaluated. Exposure to 300 μg As/L (as As2O3) appeared to delay the onset of the normal increase in plasma thyroxine concentration and cause a transient reduction of gill Na+,K+‐ATPase activity. Fish exposed to 300 μg As/L also migrated to the sea less successfully than did nonexposed smolts, but there were no effects on the survival and growth of smolts held in 28‰ salt water for 6 months.

Journal

Environmental Toxicology and ChemistryOxford University Press

Published: Jan 1, 1984

Keywords: ; ; ; ;

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