报告详情
The impact of ocean acidification on gastropod shell dissolution and microstructure
编号：34
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更新：2025-05-21 16:49:39 浏览：1次
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摘要
Global seawater pH is projected to decrease by 0.3–0.5 units on average by the end of this century, which is
considered detrimental to the shells of marine calcareous organisms. However, there is limited understanding of
how ocean acidification affects the morphology and structure of these shells, as well as the underlying mecha
nisms. This study examines the shell growth, surface erosion, and microstructural changes of the marine
gastropod Lunella coronata granulata after 85 days of exposure to varying pH (8.1–7.1). The results reveal that at
pH ≤ 7.5, shell growth is notably inhibited, with pronounced dissolution hole formation on the inner surface. At
pH 7.1, shell surface erosion becomes more pronounced, accompanied by extensive peeling of the shell peri
ostracum. These changes—dissolution hole formation and periostracum peeling—are critical indicators of
gastropod shell response to ocean acidification and can serve as biological indicators reflecting current and past
ocean acidification. Additionally, our study shows a clear negative correlation between shell dissolution and pH,
providing new bio-proxy for indicating the pH changes.
关键词
Reduced pH,Shell erosion,Aragonite and calcite,Calcium carbonate saturation
报告人
幸 李
博士研究生在读 中国地质大学（武汉）稿件作者
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重要日期
-
会议日期
06月10日
2025
至06月13日
2025
-
04月15日 2025
初稿截稿日期
主办单位
National Natural Science Foundation of China
Geobiology Society
National Committee of Stratigraphy of China
Ministry of Science and Technology
Geological Society of China
Paleontological Society of China
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (CAS)
Institute of Vertebrate Paleontology and Paleoanthropology, CAS
International Commission on Stratigraphy
International Paleontological Association
Geobiology Society
National Committee of Stratigraphy of China
Ministry of Science and Technology
Geological Society of China
Paleontological Society of China
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (CAS)
Institute of Vertebrate Paleontology and Paleoanthropology, CAS
International Commission on Stratigraphy
International Paleontological Association
承办单位
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (CUG, Wuhan)
联系方式
- Yizhou Huang
- yi******@cug.edu.cn
- 186********
历届会议
-
2025年06月10日 中国 Wuhan
第五届国际地球生物学会议 -
2017年06月24日 中国 Wuhan,China
The 4th International Conference of Geobiology
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