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来源类型Article
规范类型其他
DOI10.1021/es505485m
Calcifying species sensitivity distributions for ocean acidification.
Azevedo L; De Schryver AM; Hendriks AJ; Huijbregts MAJ
发表日期2015
出处Environmental Science & Technology 49 (3): 1495-1500
出版年2015
语种英语
摘要Increasing CO2 atmospheric levels lead to increasing ocean acidification, thereby enhancing calcium carbonate dissolution of calcifying species. We gathered peer-reviewed experimental data on the effects of acidified seawater on calcifying species growth, reproduction, and survival. The data were used to derive species-specific median effective concentrations, i.e., pH50, and pH10, via logistic regression. Subsequently, we developed species sensitivity distributions (SSDs) to assess the potentially affected fraction (PAF) of species exposed to pH declines. Effects on species growth were observed at higher pH than those on species reproduction (mean pH10 was 7.73 vs 7.63 and mean pH50 was 7.28 vs 7.11 for the two life processes, respectively) and the variability in the sensitivity of species increased with increasing number of species available for the PAF (pH10 standard deviation was 0.20, 0.21, and 0.33 for survival, reproduction, and growth, respectively). The SSDs were then applied to two climate change scenarios to estimate the increase in PAF (.PAF) by future ocean acidification. In a high CO2 emission scenario, .PAF was 3 to 10% (for pH50) and 21 to 32% (for pH10). In a low emission scenario, .PAF was 1 to 4% (for pH50) and 7 to 12% (for pH10). Our SSDs developed for the effect of decreasing ocean pH on calcifying marine species assemblages can also be used for comparison with other environmental stressors.
主题Ecosystems Services and Management (ESM)
URLhttp://pure.iiasa.ac.at/id/eprint/11515/
来源智库International Institute for Applied Systems Analysis (Austria)
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资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/130406
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GB/T 7714
Azevedo L,De Schryver AM,Hendriks AJ,et al. Calcifying species sensitivity distributions for ocean acidification.. 2015.
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