Effect of Elevated Carbon Dioxide on Two Scleractinian Corals: Porites cylindrica (Dana, 1846) and Galaxea fascicularis (Linnaeus, 1767)
Effect of Elevated Carbon Dioxide on Two Scleractinian Corals: Porites cylindrica (Dana, 1846) and Galaxea fascicularis (Linnaeus, 1767)
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DOI:
10.1155/2009/215196
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发表时间:
2009
影响因子:
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通讯作者:
Y. Hii;A. A. Bolong-A.;T. Yang;H. Liew
中科院分区:
文献类型:
--
作者:
Y. Hii;A. A. Bolong-A.;T. Yang;H. Liew
This study reveals the effect of elevated on Porites cylindrica and Galaxea fascicularis. The corals responded differently under elevated . Zooxanthellae cell density, cell mitotic index, and photosynthesis rate of P. cylindrica decreased drastically under the elevated . At the end of the experiment, P. cylindrica suffered from a declining calcium carbonate precipitation rate. G. fascicularis increased its respiration rate and expelled 71% of its symbiotic zooxanthellae algae under elevated . Photosynthetic pigments in the remaining zooxanthellae algae increased from 1.85 to 11.5 times to sustain its photosynthetic outputs. At the end of the experiment, G. fascicularis managed to increase the rate of its calcium carbonate precipitation. Increase in the atmosphere may affect species diversity of coral reefs.