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Ether Anesthesia of Steelhead Trout
Author(s) -
Griffiths Francis P.,
Webb Glaucus,
Schneider Phillip W.
Publication year - 1941
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1940)70[272:eaost]2.0.co;2
Subject(s) - trout , spawn (biology) , hatchery , rainbow trout , fishery , fish <actinopterygii> , biology , zoology , toxicology
The use of anesthetics offers numerous advantages when handling, marking, or spawning fish which are susceptible to fungus diseases and injuries. Small trout were weighed and measured easily while anesthetized. Steelhead trout, under anesthesia, were very easy to spawn artificially and the loss from eggs so obtained was less than average hatchery losses of eggs for the species. A 1 1/2 per cent aqueous solution of ether anesthetized trout effectively in 45 to 90 seconds and these fish remained relaxed when placed in fresh water for 3 to 20 minutes.