Suitability of the shallow water hydrothermal system at Ambitle Island (Papua New Guinea) to study the effect of high pCO2 on coral reefs.

Suitability of the shallow water hydrothermal system at Ambitle Island (Papua New Guinea) to study the effect of high pCO2 on coral reefs.
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安比特尔岛(巴布亚新几内亚)浅水热液系统适合研究高 pCO2 对珊瑚礁的影响

DOI:
10.1016/j.marpolbul.2018.11.003
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发表时间:
2018
影响因子:
5.8
通讯作者:
R. Rodolfo-Metalpa
R. Rodolfo-Metalpa
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Pichler;T. Biscéré;J. Kinch;M. Zampighi;F. Houlbréque;R. Rodolfo-Metalpa

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火山co2渗漏被成功地用于预测珊瑚礁对海洋酸化的反应,尽管通常是热液喷口特征的有毒元素很少被报道。对巴布亚新几内亚图图姆湾的海水进行了理化条件、碳酸盐化学和微量元素的测定。在那里,热液流体和二氧化碳的强烈排放使珊瑚礁暴露在7.6到7.7之间的海水中。砷和二氧化硅在表层海水中富集高达6倍,而海底浓度较低,因此与世界各地的珊瑚礁相似。锰、铯、铁和锌的浓度落在其他沿海环境的范围内。我们的测量结果表明,图特姆湾是研究珊瑚礁对高二氧化碳反应的合适地点。考虑到砷是热液流体中的一种常见金属,任何利用火山二氧化碳渗出物作为海洋酸化自然实验室的研究都应包括砷的特征。
Volcanic CO2seeps were successfully used to predict coral reef response to ocean acidification, although toxic elements, often characteristic of hydrothermal vents were rarely reported. We measured the physicochemical conditions, seawater carbonate chemistry and trace elements in Tutum Bay, Papua New Guinea. There, intense emission of hydrothermal fluids and CO2expose the coral reef to a seawater pHTbetween 7.6 and 7.7.Arsenic and silica were enriched by up to six times in surface seawater, while bottom concentrations were lower and thus similar to coral reefs worldwide. Manganese, cesium, iron and zinc concentrations fell into the range of other coastal environments. Our measurements suggest that Tutum Bay is a suitable site to study the response of coral reefs to highpCO2. Considering that arsenic is a common metal in hydrothermal fluids, its characterization should be included in any study that uses volcanic CO2seeps as natural laboratories for ocean acidification.
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