Key result
Temperature acclimation shows no effect on myofibrillar ATPase activity or thermal sensitivity in chain pickerel muscle.
Why the study?
The thermal sensitivity and maximum catalytic activity of myofibrillar ATPase in chain pickerel muscle tissue after acclimation to different temperatures were not fully characterized.
Population
Chain pickerel red and white muscle tissue
Comparison
Acclimation to 5 °C vs 25 °C for 4–6 weeks
Design
Preclinical experimental study
Follow-up
4–6 weeks
Authors
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No acclimation effect on pickerel ATPase; leaves open species- or condition-specific thermal plasticity in fish muscle.
Chain pickerel muscle power output shows low thermal dependence over normal habitat temperatures, as ATPase activity and contraction velocity are relatively temperature-independent.
Sidell et al. (1985) studied Chain pickerel (Esox niger). Temperature acclimation (5 or 25 °C) was evaluated on Maximum catalytic activity and thermal sensitivity of Mg2+–Ca2+ activated myofibrillar ATPase. Acclimation to temperatures of 5 or 25 °C for 4-6 weeks did not affect the maximum catalytic activity and thermal sensitivity of myofibrillar ATPase in chain pickerel muscle.
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