Northwest Fisheries Science Center

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Document Type: Journal Article
Center: NWFSC
Document ID: 7251
Title: Influence of dissolved atmospheric gas on swimming performance of juvenile chinook salmon
Author: Michael H. Schiewe
Publication Year: 1974
Journal: Transactions of the American Fisheries Society
Volume: 103
Issue: 4
Pages: 717-721

Juvenile chinook salmon, Oncorhynchus tshawytscha, were exposed to selected levels of dissolved atmospheric gas ranging from 100 (control) to 120% of saturation, and surviving fish were then tested for maximal swimming performance.  Decreased swimming capability resulted from exposure to concentrations ranging from 106 to 120% of saturation if the fish were tested immediately; other tests indicated that recovery of swimming capabilities occurred within 2 hr if the fish were returned to equilibrated water (100% of atmospheric saturation) before testing. 

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