The idea you to faster pastime shows you lowest metabolic prices in cold weather-inactive fishes originated in very https://datingranking.net/local-hookup/ann-arbor/ early functions by the Crawshaw and you will co-workers [9,19,20]
ten ? 2–3) in largemouth bass and brown bullhead catfish when cooled to winter temperatures, concluding that metabolic rate depression is not involved in these species during winter dormancy. Crawshaw and co-workers recognized that cold-induced decreases in activity were characteristic of winter dormancy, but they were cautious about specifying its contribution to reductions of metabolic rate . In part, this reflected the greater logistical challenges at that time of making simultaneous measurements of metabolic rate and activity, as well as the fact that they seem to have serendipitously measured metabolic rate under relatively inactive periods so never saw substantial variation in metabolic rate. Additionally, they calculated Q10 values over wider temperature ranges, which can obscure more sensitive periods that may occur when the fish transitions across the active–dormant threshold temperature. In any case, their results have been widely interpreted as being species-specific responses that contrasted with the numerous other winter-dormant fishes where metabolic rate depression has been implied on the basis of relatively high thermal sensitivity of metabolic rate at low temperatures [10,13–18]. Continue reading « It receive regular thermal sensitivities for metabolic prices (Q »