Electrical Anesthesia for Immobilizing Adult Coho Salmon in Freshwater
- 1 May 1994
- journal article
- Published by Oxford University Press (OUP) in North American Journal of Fisheries Management
- Vol. 14 (2) , 453-456
- https://doi.org/10.1577/1548-8675(1994)014<0453:eafiac>2.3.co;2
Abstract
Wild adult coho salmon Oncorhynchus kisutch, returning to spawn, were sampled in freshwater with a DC shocking basket. Electrical anesthesia briefly immobilized fish and expedited sampling without the adverse effects of tricaine methanesulfonate (MS-222) or the excessive handling associated with physical restraint. Coho salmon mortality attributed to the shocking basket was 0.2% at Yehring Creek and 4.2% at the Chilkoot Lake weir. This is the first reported freshwater application of electrical anesthesia for handling salmonids.Keywords
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