The physiological responses of the rainbow trout to strenous exercise: Interactions of water hardness and environmental acidity

M. S. Graham, C. M. Wood, J. D. Turner

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Cannulated adult rainbow trout were subjected to 6 min of exercise stress in four different water conditions: hard water (≃ 140 mg/L as CaCO3), control pH (≃ 7.5); artifical soft water (≃ 14 mg/L), control pH; hard water, acid pH (≃ 4.4); and artificial soft water, acid pH. Physiological changes and postexercise mortalities were monitored over a 12-h recovery period. The physiological responses to exercise stress were qualitatively similar in all treatments and are discussed in detail. At control pH, water hardness had minimal influence on the magnitude of physiological response and postexercise mortality. When fish were exercised in hard water at acid pH, the symptoms of postexercise acidosis were actually ameliorated slightly and there was no increase in mortality. However, acid exposure in soft water greatly exacerbated most of the postexercise disturbances and caused a doubling of mortality.

Original languageEnglish
Pages (from-to)3153-3164
Number of pages12
JournalCanadian Journal of Zoology
Volume60
Issue number12
StatePublished - Dec 1 1982

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water hardness
physiological response
rainbow
acidity
Oncorhynchus mykiss
exercise
mortality
acid water
water
acids
acid
acidosis
signs and symptoms (animals and humans)
disturbance
fish

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

The physiological responses of the rainbow trout to strenous exercise : Interactions of water hardness and environmental acidity. / Graham, M. S.; Wood, C. M.; Turner, J. D.

In: Canadian Journal of Zoology, Vol. 60, No. 12, 01.12.1982, p. 3153-3164.

Research output: Contribution to journalArticle

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