Summary
Common carp (Cyprinus carpio L.) were acclimated to either 7°C or 23°C for 1–2 months. Skinned fibre preparations were isolated from the white myotomal muscle, and ATPase activity measured during maximal isometric contractions. At 7°C, fibres from the cold acclimated fish were found to generate more force than those from warm acclimated fish (123.1 and 97.2kN m−2 respectively), and more “work” (force.time integral) was obtained for each ATP hydrolysed. ATP turnover per myosin head in fibres from cold-acclimated fish was lower than in fibres from warm-acclimated fish (1.85 and 2.84 ATP S −11 s−1.
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Altringham, J.D., Johnston, I.A. Changes in tension generation and ATPase activity in skinned muscle fibres of the carp following temperature acclimation. Pflugers Arch. 403, 449–451 (1985). https://doi.org/10.1007/BF00589261
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DOI: https://doi.org/10.1007/BF00589261