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Thermal acclimation in selected tissues of the fathead minnow, Pimephales promelas rafinesque
Author(s) -
Tatakis T. A.,
Hart R. G.
Publication year - 1985
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.1095-8649.1985.tb04286.x
Subject(s) - pimephales promelas , biology , minnow , acclimatization , muscle tissue , metabolic rate , zoology , anatomy , ecology , fishery , endocrinology , fish <actinopterygii>
Environmental variables besides temperature such as length, weight, sex, and photoperiod were shown to affect the metabolic rate in gill and white muscle tissue. This required statistical adjustment to account for these factors. Oxygen consumption rates for gill tissue were greater following cold acclimation at all determination temperatures. This suggests thermal compensation had occurred. Metabolic rates for white muscle tissue showed inverse compensation between 7 °C and 15 °C, but little compensation was evident between 15 °C and 23 °C. Both gill and white muscle tissue had Q 10 values ranging between 1–00 and 2–00. These are lower than values previously recorded for fathead minnows.