Differential tolerance to nickel between Dreissena polymorpha and Dreissena rostriformis bugensis populations.

ABSTRACT: Differential tolerance to stress is partly responsible for the heterogeneity of biomarker responses between populations of a sentinel species. Although currently used for freshwater biomonitoring, studies concerning inter-populational variability in tolerance to contaminants for the zebra mussel (Dreissena polymorpha) are scarce. Moreover, this well-known invader is currently replaced by another, the quagga mussel (Dreissena rostriformis bugensis). To evaluate the differential tolerance between dreissenids, several populations of both species were exposed to a high concentration of nickel. A LT₅₀ (time when 50% of individuals were dead) was established for each population. Biomarker responses and internal nickel concentration were also measured, to link tolerance with physiologi

SUBMITTER: Potet M 

PROVIDER: S-EPMC5768691 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature