Effects of salinity fluctuation on routine metabolism of juvenile spot, Leiostomus xanthums
| Autor: | J. M. Miller, M. L. Moser |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
geography
geography.geographical_feature_category Ecology Leiostomus xanthurus Estuary Metabolism Aquatic Science Biology biology.organism_classification Acclimatization Salinity Animal science Respiration Fish Juvenile sense organs skin and connective tissue diseases Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of Fish Biology. 45:335-340 |
| ISSN: | 1095-8649 0022-1112 |
| Popis: | We subjected juvenile spot, Leiostomus xanthurus, to eight different salinity fluctuation schedules to evaluate the effects of magnitude, rate, mean, and direction of salinity changes on their routine metabolism. Routine respiration stabilized within 3 h after all salinity changes and no fish died. Very rapid rates of change and changes at low mean salinity elicited short-term stress responses in 40–70 mm spot. Spot adapted more rapidly to increasing salinity changes than to decreasing changes, but the acclimation state of the fish apparently did not affect their salinity tolerance. Our results also indicated that spot undergo size-dependent changes in sensitivity to salinity fluctuation which correspond to seasonal shifts in distribution. |
| Databáze: | OpenAIRE |
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