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首页> 外文期刊>Environmental Science & Technology >Predicting the Impacts of CO_2 Leakage from Subseabed Storage: Effects of Metal Accumulation and Toxicity on the Model Benthic Organism Ruditapes philippinarum
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Predicting the Impacts of CO_2 Leakage from Subseabed Storage: Effects of Metal Accumulation and Toxicity on the Model Benthic Organism Ruditapes philippinarum

机译：预测从海底储存中泄漏CO_2的影响：金属积累和毒性对模型底栖生物菲律宾蛤仔的影响

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摘要

The urgent need to minimize the potential harm deriving from global climate change and ocean acidification has led governmental decision-makers and scientists to explore and study new strategies for reducing the levels of anthropogenic CO_2. One of the mitigation measures proposed for reducing the concentration of atmospheric CO_2 is the capture and storage of this gas in subseabed geological formations; this proposal is generating considerable international interest. The main risk associated with this option is the leakage of retained CO_2, which could cause serious environmental perturbations, particularly acidification, in marine ecosystems. The study reported is aimed at quantifying the effects of acidification derived from CO_2 leakage on marine organisms. To this end, a labscale experiment involving direct release of CO_2 through marine sediment was conducted using Ruditapes philippinarum as a model benthic organism. For 10 days bivalves were exposed to 3 sediment samples with different physicochemical characteristics and at pre-established pH conditions (8.0-6.1). End points measured were: survival, burrowing activity, histopathological lesions, and metal accumulation (Fe, Al, Mn, Cu, and Zn) in whole body. Correlations analyses indicated highly significant associations (P ＜ 0.01) between pH and the biological effects measured in R philippinarum, except for metal concentrations in tissues. Further research to understand and predict the biological and economic implications for coastal ecosystems deriving from acidification by CO_2 leakages is urgently needed.
机译：迫切需要最大程度地减少全球气候变化和海洋酸化带来的潜在危害，已导致政府决策者和科学家们探索和研究降低人为CO_2含量的新策略。提出的减少大气中CO_2浓度的缓解措施之一是在海底地质构造中捕获和储存这种气体。该提议引起了相当大的国际关注。与该选项相关的主要风险是残留的CO_2泄漏，这可能导致海洋生态系统受到严重的环境扰动，尤其是酸化。报道的研究旨在量化源自CO_2泄漏的酸化对海洋生物的影响。为此，使用菲律宾蛤仔作为底栖生物模型进行了涉及通过海洋沉积物直接释放CO_2的实验室规模实验。将双壳类动物暴露于3个具有不同理化特性并在预先设定的pH条件（8.0-6.1）下的沉积物样品10天。测量的终点为：存活率，穴居活动，组织病理学病变和全身金属积累（铁，铝，锰，铜和锌）。相关性分析表明，除了组织中的金属浓度外，pH与在菲律宾河豚中测得的生物学效应之间存在极显着的关联（P ＜0.01）。迫切需要进行进一步的研究，以了解和预测由于CO_2泄漏而酸化而对沿海生态系统产生的生物学和经济影响。

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  • 来源
    《Environmental Science & Technology》 |2014年第20期|12292-12301|共10页
  • 作者

    Araceli Rodriguez-Romero; Natalia Jimenez-Tenorio; M. Dolores Basallote; Manoela R. De Orte; Julian Blasco; Inmaculada Riba;

  • 作者单位

    Departamento de Ecologia y Gestion Costera, Instituto de Ciencias Marinas de Andalucia (CSIC), Campus Rio San Pedro, Puerto Real, Cadiz 11510, Spain;

    Catedra UNESCO/UNITWIN/WiCop, Facultad de Ciencias del Mar y Ambientales, Universidad de Cadiz, Poligono Rio San Pedro s, Puerto Real, Cadiz 11510, Spain;

    Catedra UNESCO/UNITWIN/WiCop, Facultad de Ciencias del Mar y Ambientales, Universidad de Cadiz, Poligono Rio San Pedro s, Puerto Real, Cadiz 11510, Spain;

    Catedra UNESCO/UNITWIN/WiCop, Facultad de Ciencias del Mar y Ambientales, Universidad de Cadiz, Poligono Rio San Pedro s, Puerto Real, Cadiz 11510, Spain,Instituto do Mar. Campus Baixada Santista, Universidade Federal de Sao Paulo, Av. Alm. Sandanha da Gama, 89-Ponta da Praia-Santos/SP CEP: 11030-400;

    Departamento de Ecologia y Gestion Costera, Instituto de Ciencias Marinas de Andalucia (CSIC), Campus Rio San Pedro, Puerto Real, Cadiz 11510, Spain;

    Catedra UNESCO/UNITWIN/WiCop, Facultad de Ciencias del Mar y Ambientales, Universidad de Cadiz, Poligono Rio San Pedro s, Puerto Real, Cadiz 11510, Spain;

  • 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);
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