Cardiorespiratory collapse at high temperature in swimming adult sockeye salmon | Zendy

E. J. Eliason | Zendy; Thomas D. Clark | Zendy; S. G. Hinch | Zendy; A. P. Farrell | Zendy

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Cardiorespiratory collapse at high temperature in swimming adult sockeye salmon

Author(s) -

E. J. Eliason,

Thomas D. Clark,

S. G. Hinch,

A. P. Farrell

Publication year - 2013

Publication title -

conservation physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.942

H-Index - 37

ISSN - 2051-1434

DOI - 10.1093/conphys/cot008

Subject(s) - cardiorespiratory fitness , ectotherm , oxygen , vo2 max , biology , cardiac output , limiting , heart rate , oxygen transport , stroke volume , zoology , medicine , ecology , blood pressure , physiology , chemistry , endocrinology , mechanical engineering , organic chemistry , engineering

Elevated river temperatures have been associated with high mortality in migrating adult sockeye salmon, which may be partially attributed to physiological limitations in aerobic performance. This study suggests that the decrease in aerobic scope above optimum temperatures is due to a cardiac limitation, triggered by reduced scope for heart rate.

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