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Experimental measurement of thermal preferenda in sea trout smolts
Author(s) -
Clough S. C.,
Turnpenny A. W. H.,
Holden S. D. J.
Publication year - 2002
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2002.tb01761.x
Subject(s) - salmo , biology , trout , fishery , fish <actinopterygii> , salmonidae , brown trout , zoology
Experiments were conducted to estimate the threshold water temperature rise (Δt) for avoidance by smolts of sea trout Salmo trutta . In three out of four experiments, the median avoidance threshold was found to be c . +6° C (+5·4 to +6·4° C). In the fourth experiment, the fish were able to detect and avoid temperature rises of < +1° C.