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Journal Article

A microsensor study of light enhanced Ca2+ uptake and photosynthesis in the reef-building hermatypic coral Favia sp

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de Beer,  Dirk
Permanent Research Group Microsensor, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Kühl,  Michael
Permanent Research Group Microsensor, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Citation

de Beer, D., Kühl, M., Stambler, N., & Vaki, L. (2000). A microsensor study of light enhanced Ca2+ uptake and photosynthesis in the reef-building hermatypic coral Favia sp. Marine Ecology-Progress Series, 194, 75-85.


Cite as: https://hdl.handle.net/21.11116/0000-0004-78B8-6
Abstract
The coupling between CO 2 and Ca 2+ exchange and photosynthesis by corals (Favia sp.) was studied with microsensors for Ca 2+ , O 2 , pH and CO 2 . The profiles of these compounds, measured perpendicular on the coral surface, were strongly influenced by light. During illumination, the concentration of O 2 and the pH at the polyp surface was higher than in the surrounding seawater, while the concentrations of Ca 2+ and CO 2 were lower. In the dark the inverse was observed.