Recent thermal history influences thermal tolerance in freshwater mussel species (Bivalvia: Unionoida)
Freshwater Science
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Abstract
Understanding species’ temperature tolerances in the context of concurrent environmental stressors is critical because thermal regimes of freshwater ecosystems are changing. We evaluated the critical thermal maximum (CTM) of 3 freshwater mussel species (Alasmidonta varicosa, Elliptio complanata, and Strophitus undulatus) acclimated to 2 temperatures (15 and 25°C) and exposed to 2 aeration treatments (aerated vs unaerated) during CTM testing. Responses varied by species, but mussels acclimated to 25°C generally had a higher CTM than mussels acclimated to 15°C. For E. complanata, the effects of acclimation temperature and aeration were interactive, such that CTM was highest at 15°C but only under aerated conditions. Our results indicate that recent thermal history affects thermal tolerance, combinations of environmental stressors may influence thermal tolerance, and such responses vary among species.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Recent thermal history influences thermal tolerance in freshwater mussel species (Bivalvia: Unionoida) |
| Series title | Freshwater Science |
| DOI | 10.1899/11-025.1 |
| Volume | 31 |
| Issue | 1 |
| Year Published | 2012 |
| Language | English |
| Publisher | The Society for Freshwater Science |
| Contributing office(s) | Coop Res Unit Leetown |
| Description | 10 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Freshwater Science |
| First page | 83 |
| Last page | 92 |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |