The swimming performance of brown trout and whitefish: the effects of exercise on Ca2+ handling and oxidative capacity of swimming muscles

Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
Katja AnttilaSatu Mänttäri

Abstract

The swimming performance of two fish species, the brown trout and whitefish, having initially different swimming strategies, was measured after nine different training programs in order to relate the effects of exercise on Ca(2+) handling and oxidative capacity of swimming muscles. The time to 50% fatigue was measured during the training period, and compared with the density of dihydropyridine (DHP) and ryanodine (Ry) receptors and succinate dehydrogenase (SDH) and phosphorylase activity determined by histochemical analysis of the swimming muscles. Overall, both trained brown trout and whitefish had superior swimming performance as compared to control ones. Interestingly, the training programs had different effect on the two species studied since brown trout achieved the highest swimming performance, swimming against the water flow velocity of 2 BL s(-1) while among whitefish the best efficiency was seen after training with lower swimming velocities. Training also induced a significant increase in DHP and Ry receptor density in both species. Generally, in brown trout the most notable increase in the receptor densities was observed in red muscle sections from the fish swimming for 6 weeks against water currents of 1 BL s(-1) (DH...Continue Reading

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Citations

Aug 21, 2009·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Christophe M R LeMoineGrant B McClelland
Feb 6, 2010·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Katja AnttilaSatu Mänttäri
Jan 23, 2013·BMC Physiology·Vicente CastroHarald Takle
Sep 24, 2015·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Josefina BlascoJ Fernández-Borrás
Apr 11, 2012·Evolution; International Journal of Organic Evolution·Anne C DalzielPatricia M Schulte
Jul 17, 2015·Evolution; International Journal of Organic Evolution·Anne C DalzielLouis Bernatchez
Aug 24, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Leonardo J MagnoniJosep V Planas
Jul 6, 2011·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Vicente CastroHarald Takle
Feb 17, 2017·The Journal of Experimental Biology·Ensiyeh Ghanizadeh-KazerouniFrank Seebacher
Jul 27, 2014·Biology Open·Richard T JaspersWillem J van der Laarse
Jan 27, 2012·The Journal of Experimental Biology·Frank Seebacher, Isabel Walter
Jul 10, 2012·The Journal of Experimental Biology·Anne C Dalziel, Patricia M Schulte

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