Response of copepods to elevated pCO2 and environmental copper as co-stressors--a multigenerational study.

ABSTRACT: We examined the impacts of ocean acidification and copper as co-stressors on the reproduction and population level responses of the benthic copepod Tisbe battagliai across two generations. Naupliar production, growth, and cuticle elemental composition were determined for four pH values: 8.06 (control); 7.95; 7.82; 7.67, with copper addition to concentrations equivalent to those in benthic pore waters. An additive synergistic effect was observed; the decline in naupliar production was greater with added copper at decreasing pH than for decreasing pH alone. Naupliar production modelled for the two generations revealed a negative synergistic impact between ocean acidification and environmentally relevant copper concentrations. Conversely, copper addition enhanced copepod growth, with larger c

SUBMITTER: Fitzer SC 

PROVIDER: S-EPMC3737157 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature