...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Mineralogical Plasticity Acts as a Compensatory Mechanism to the Impacts of Ocean Acidification
【24h】

Mineralogical Plasticity Acts as a Compensatory Mechanism to the Impacts of Ocean Acidification

机译：矿物学可塑性充当海洋酸化影响的补偿机制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Calcifying organisms are considered particularly susceptible to the future impacts of ocean acidification (OA), but recent evidence suggests that they may be able to maintain calcification and overall fitness. The underlying mechanism remains unclear but may be attributed to mineralogical plasticity, which modifies the energetic cost of calcification. To test the hypothesis that mineralogical plasticity enables the maintenance of shell growth and functionality under OA conditions, we assessed the biological performance of a gastropod (respiration rate, feeding rate, somatic growth, and shell growth of Austrocochlea constricta) and analyzed its shell mechanical and geochemical properties (shell hardness, elastic modulus, amorphous calcium carbonate, calcite to aragonite ratio, and magnesium to calcium ratio). Despite minor metabolic depression and no increase in feeding rate, shell growth was faster under OA conditions, probably due to increased precipitation of calcite and trade-offs against inner shell density. In addition, the resulting shell was functionally suitable for increasingly "corrosive" oceans, i.e., harder and less soluble shells. We conclude that mineralogical plasticity may act as a compensatory mechanism to maintain overall performance of calcifying organisms under OA conditions and could be a cornerstone of calcifying organisms to acclimate to and maintain their ecological functions in acidifying oceans.
机译：人们认为钙化生物特别容易受到海洋酸化（OA）未来影响的影响，但最近的证据表明它们可能能够维持钙化和总体适应性。潜在的机制尚不清楚，但可能归因于矿物可塑性，这改变了钙化的能量成本。为了检验矿物学可塑性在OA条件下维持壳生长和功能的假设，我们评估了腹足动物的生物学性能（呼吸速率，进食速率，体细胞生长和and缩壳的生长），并分析了其壳的机械和地球化学特性（壳硬度，弹性模量，无定形碳酸钙，方解石与文石的比率以及镁与钙的比率）。尽管代谢抑制程度较小且进食速率未增加，但在OA条件下壳的生长较快，这可能是由于方解石沉淀的增加和对内壳密度的权衡所致。另外，所得到的壳在功能上适合于日益“腐蚀”的海洋，即，更硬且难溶的壳。我们得出的结论是，矿物学可塑性可能是在OA条件下维持钙化生物整体性能的补偿机制，并且可能是钙化生物在酸化海洋中适应和维持其生态功能的基石。

著录项

  • 来源
    《Environmental Science & Technology》 |2017年第5期|2652-2659|共8页
  • 作者

    Jonathan Y. S. Leung; Bayden D. Russell; Sean D. Connell;

  • 作者单位

    Southern Seas Ecology Laboratories, The Environment Institute, School of Biological Sciences, The University of Adelaide, Adelaide 5005, South Australia, Australia;

    Southern Seas Ecology Laboratories, The Environment Institute, School of Biological Sciences, The University of Adelaide, Adelaide 5005, South Australia, Australia ,The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China;

    Southern Seas Ecology Laboratories, The Environment Institute, School of Biological Sciences, The University of Adelaide, Adelaide 5005, South Australia, Australia;

  • 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 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号