End of century ocean warming and acidification effects on reproductive success in a temperate marine copepod

We examined how predicted end of century ocean warming and acidification scenarios affected the incidence of apoptosis in the eggs and nauplii of the copepod Calanus helgolandicus. Offspring viability was not affected by 1000 ppm CO2-acidified seawater, whereas the effects of 2 and 4°C warming were dependent upon the batch of eggs used; warming increased viability in the second batch. This context-dependency highlights the need for cautious interpretation and application of data from individual climate-change studies.

Mayor D. J., Everett N. R., & Cook K. B., in press. End of century ocean warming and acidification effects on reproductive success in a temperate marine copepod. Journal of Plankton Research doi:10.1093/plankt/fbr107. Article (subscription required).


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