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Tempering versus Acclimation in the Planting of Speckled Trout
Author(s) -
Brett J. R.
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[397:tvaitp]2.0.co;2
Subject(s) - salvelinus , trout , fontinalis , acclimatization , fish <actinopterygii> , tempering , fishery , biology , zoology , period (music) , ecology , materials science , physics , acoustics , composite material
The acclimation of speckled trout, Salvelinus fontinalis (Mitchill), by keeping them in tanks at temperatures from 13° to 22° C. (55.4° to 71.6° F.) for a period of 12 hours raised the lethal temperature from 24° C. (75.2° F.) to 26° C. (78.8° F.). The lethal temperature was assumed to be that temperature at which 50 per cent of the fish die within a period of 14 hours (Hathawayˈs method). Tempering speckled trout by gradually raising the temperature over a period of 15 minutes to that of the experimental tanks had no effect on the lethal temperature.