Calcifying invertebrates succeed in a naturally CO2-rich coastal habitat but are threatened by high levels of future acidification
Calcifying invertebrates succeed in a naturally CO2-rich coastal habitat but are threatened by high levels of future acidification
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DOI：
10.5194/bg-7-3879-2010
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发表时间：
2010-01-01
期刊：
影响因子：
4.9
通讯作者：
Melzner, F.
中科院分区：
文献类型：
--
作者：
Thomsen, J.;Gutowska, M. A.;Melzner, F.
二氧化碳排放导致海洋酸化。预测海洋群落对酸化的脆弱性很困难，因为大多数实验研究都无法解释适应过程。因此，天然富含二氧化碳的地点可以作为未来群落结构变化的有价值的指标。在这里，我们描述了西波罗的海的一个自然类似地点。由于富含二氧化碳的海水上涌，基尔峡湾的海水 pCO(2) 在一年中的大部分时间里都会升高。峰值 pCO(2) 值 >230 Pa (>2300 mu atm)，pH(NBS) 值 400 Pa (>4000 mu atm)。这些变化很可能会影响钙化和复张，并增加外壳溶解。
CO2 emissions are leading to an acidification of the oceans. Predicting marine community vulnerability towards acidification is difficult, as adaptation processes cannot be accounted for in most experimental studies. Naturally CO2 enriched sites thus can serve as valuable proxies for future changes in community structure. Here we describe a natural analogue site in the Western Baltic Sea. Seawater pCO(2) in Kiel Fjord is elevated for large parts of the year due to upwelling of CO2 rich waters. Peak pCO(2) values of >230 Pa (>2300 mu atm) and pH(NBS) values of 400 Pa (>4000 mu atm). These changes will most likely affect calcification and recruitment, and increase external shell dissolution.