Question

Experiments with different concentrations of dissolved oxygen and foraminifera

Answer 1

Although substantial turnovers of planktonic foraminiferal species occurred during Cretaceous oceanic anoxic events (OAEs), the direct effects of dissolved oxygen (DO) concentration on planktonic foraminifera remain obscure. Culture experiments can quantify the relationship between planktonic foraminiferal ecology and environmental parameters, but experiments controlling DO have yet to be conducted because it is difficult to maintain a stable oxygen concentration. In this study, we cultured two planktonic foraminifer species (Orbulina universa …

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