Near-future reductions in pH will have no consistent ecological effects on the early life-history stages of reef corals
Near-future reductions in pH will have no consistent ecological effects on the early life-history stages of reef corals
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DOI：
10.3354/meps10318
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发表时间：
2013-01-01
影响因子：
2.5
通讯作者：
Baird, Andrew H.
中科院分区：
文献类型：
--
作者：
Chua, Chia-Miin;Leggat, William;Baird, Andrew H.
直到最近，对海洋吸收二氧化碳对珊瑚的影响的研究集中在其对生理过程的影响，特别是钙化。然而，珊瑚生命史早期的事件也可能容易受到大气中二氧化碳浓度增加（海洋酸化）造成的海洋化学变化的影响。我们测试了降低pH值对大堡礁3种常见石珊瑚的胚胎发育、幼虫存活和变态的影响。我们使用了4个处理水平的pH值，对应于目前的海洋pH值和3个值预计将出现在本世纪晚些时候。我们研究的早期生命史阶段都没有受到pH值降低的影响。我们的研究结果表明，海洋酸化对珊瑚礁早期生命史阶段没有直接的生态影响，至少在不久的将来是这样。
Until recently, research into the consequences of oceanic uptake of CO2 for corals focused on its effect on physiological processes, in particular, calcification. However, events early in the life history of corals are also likely to be vulnerable to changes in ocean chemistry caused by increases in the atmospheric concentration of CO2 (ocean acidification). We tested the effect of reduced pH on embryonic development, larval survivorship and metamorphosis of 3 common scleractinian corals from the Great Barrier Reef. We used 4 treatment levels of pH, corresponding to the current level of ocean pH and 3 values projected to occur later this century. None of the early life-history stages we studied were consistently affected by reduced pH. Our results suggest that there will be no direct ecological effects of ocean acidification on the early life-history stages of reef corals, at least in the near future.