Long-term sublethal acid exposure in rainbow trout (Salmo gairdneri) in soft water: effects on ion exchanges and blood chemistry

C. Audet, R. S. Munger, C. M. Wood

Research output: Chapter in Book/Report/Conference proceedingChapter

38 Scopus citations

Abstract

Long-term sublethal acid exposure (3 mo, pH 4.8) in adult rainbow trout acclimated to soft water caused transient net losses of Na+ and Cl-. Net flux rates of both ions were returned to control levels after 30-52 d of acid exposure through a new equilibrium between unidirectional influx and efflux, where both were lower than control rates. K+ balance remained negative and Ca2+ balance at zero throughout the exposure. No changes in net acidic equivalent flux occurred, indicating the absence of acid-base disturbance, but ammonia excretion increased over time. Despite stabilization at a new steady state, rainbow trout were physiologically affected in a deleterious manner by chronic sublethal acid exposure in soft water. -from Authors

Original languageEnglish
Title of host publicationCanadian Journal of Fisheries and Aquatic Sciences
Pages1387-1398
Number of pages12
Volume45
Edition8
StatePublished - Dec 1 1988

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ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)
  • Medicine(all)

Cite this

Audet, C., Munger, R. S., & Wood, C. M. (1988). Long-term sublethal acid exposure in rainbow trout (Salmo gairdneri) in soft water: effects on ion exchanges and blood chemistry. In Canadian Journal of Fisheries and Aquatic Sciences (8 ed., Vol. 45, pp. 1387-1398)