The combined effects of ocean acidification and copper on the physiological responses of the tropical coral Stylophora pistillata

Cryer S. E.; Schlosser C.; Allison N.

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The combined effects of ocean acidification and copper on the physiological responses of the tropical coral Stylophora pistillata

机译：The combined effects of ocean acidification and copper on the physiological responses of the tropical coral Stylophora pistillata

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A decrease in ocean pH of 0.3 units will likely double the proportion of dissolved copper (Cu) present as the free metal ion, Cu2+, the most bioavailable form of Cu, and one of the most common marine pollutants. We assess the impact of ocean acidification and Cu, separately and in combination, on calcification, photosynthesis and respiration of sub-colonies of a single tropical Stylophora pistillata colony. After 15 days of treatment, total calcification rates were significantly decreased in corals exposed to high seawater pCO2 (-1000-mu atm, 2100 scenario) and at both ambient (1.6-1.9 nmols) and high (2.5-3.6 nmols) dissolved Cu concentrations compared to controls. The effect was increased when both stressors were combined. Coral respiration rates were significantly reduced by the combined stressors after 2 weeks of exposure, indicating the importance of experiment duration. It is therefore likely rising atmospheric CO2 will exacerbate the negative effects of Cu pollution to S. pistillata.

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《Marine environmental research》 |2022年第4期|105610.1-105610.8|共8页
作者
Cryer S. E.; Schlosser C.; Allison N.;
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作者单位

Univ St Andrews, Sch Earth & Environm Sci, Irvine Bldg,North St, St Andrews KY169AL, England|Univ Southampton, Natl Oceanog Ctr, Sch Ocean & Earth Sci, European Way, Southampton SO14 3ZH, Hampshire, England|Helmholtz Ctr Ocean Res Kiel, Dept Chem Oceanog,;

Univ St Andrews, Sch Earth & Environm Sci, Irvine Bldg,North St, St Andrews KY169AL, England;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
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关键词
Coral; Copper; Ocean acidification; Calcification; Respiration;

The combined effects of ocean acidification and copper on the physiological responses of the tropical coral Stylophora pistillata

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