Variation in thermal tolerance among three Mississippi river populations of the zebra mussel, Dreissena polymorpha.

From: Journal of Shellfish Research | Date: January 1, 2005| Author: Elderkin, Curt L.; Klerks, Paul L. | Copyright information

ABSTRACT To investigate the occurrence of thermal adaptation in the zebra mussel, Dreissena polymorpha, inhabiting the lower reaches of the Mississippi River, we compared lethal heat-tolerance among three populations (mussels collected at Lake Pepin, MN; Alton, IL; and Baton Rouge, LA). We determined time-to-death at 32[degrees]C for 160 individuals per site, for mussels collected at a water temperature of 15[degrees]C and then maintained in the laboratory for about 8 wk under unif...

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