Salinity tolerance and osmoregulatory ability of Galaxias maculatus (Jenyns) (Pisces, Salmoniformes, Galaxiidae) |
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| Authors: | B. C. CHESSMAN W. D. WILLIAMS |
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| Affiliation: | Department of Zoology, Monash University, Clayton, Victoria 3168, Australia |
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| Abstract: | The salinity tolerance and osmoregulatory ability of Galaxias maculatus were investigated. In the field this species has been recorded from salinities of less than 1‰ to 49‰. In the laboratory, upper L.D.50 salinity values of 62‰ after gradual acclimation and 45‰ after direct transfer were established. Within the salinity range of its field occurrence the species is a powerful osmoregulator, being able both to hypo- and hyper-osmoregulate. |
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