文献类型：期刊文献

英文题名：Trace elemental alterations of bivalve shells following transgenerational exposure to ocean acidification: Implications for geographical traceability and environmental reconstruction

作者：Zhao, Liqiang[1,2,3];Milano, Stefania[2,4];Tanaka, Kentaro[3];Liang, Jian[5];Deng, Yuewen[1];Yang, Feng[6];Walliser, Eric O.[2];Schoene, Bernd R.[2]

机构：[1]Guangdong Ocean Univ, Coll Fisheries, Zhanjiang 524088, Peoples R China;[2]Johannes Gutenberg Univ Mainz, Inst Geosci, D-55128 Mainz, Germany;[3]Univ Tokyo, Atmosphere & Ocean Res Inst, Chiba 2778564, Japan;[4]Max Planck Inst Evolutionary Anthropol, Dept Human Evolut, D-04103 Leipzig, Germany;[5]Tianjin Agr Univ, Dept Fisheries, Tianjin 300384, Peoples R China;[6]Dalian Ocean Univ, Coll Life Sci & Fisheries, Dalian 116023, Peoples R China

年份：2020

卷号：705

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：SCI-EXPANDED(收录号：WOS:000508129700018)、、EI(收录号：20195007834567)、Scopus(收录号：2-s2.0-85076262978)、WOS

基金：The authors would like to thank Regina Mertz-Kraus at the University of Mainz for assistance with LA-ICP-MS analyses. The current study has been made possible by a research grant from the framework (FP7) of the Marie Curie International Training Network ARAMACC (604802) to BRS and LZ and by the Japan Society for the Promotion of Science (JSPS) KAKENHI grants to LZ (17P17333) and KT (17K17669).

语种：英文

外文关键词：Bivalve shells; Trace elements; Ocean acidification; Transgenerational acclimation; Ruditapes philippinarum

外文摘要：Trace elements of bivalve shells can potentially record the physical and chemical properties of the ambient seawater during shell formation, thereby providing valuable information on environmental conditions and provenance of the bivalves. In an acidifying ocean, whether and how seawater acidification affects the trace elemental composition of bivalve shells is largely unknown. Here, we investigated the transgenerational effects of OA projected for the end of the 21st century on the incorporation of trace elements into shells of the Manila clam, Ruditapes philippinarum. Neither seawater pH nor transgenerational exposure affected the Mg and Sr composition of the shells. Compared with clams grown under ambient conditions, specimens exposed to elevated CO2 levels incorporated significantly higher amounts of Cu, Zn, Ba and Pb into their shells, in line with the fact that at lower pH, these elements in seawater occur at higher fractions in free forms which are biologically available. Transgenerational effects manifested themselves significantly during the incorporation of Cu and Zn into the shells, most likely because Cu and Zn are biologically essential trace elements for metabolic processes. In addition, the plasticity of metabolism toward energetic efficiency following transgenerational exposure confers the clams enhanced ability to discriminate against Cu and Zn during the uptake from the ambient environment to the site of calcification. In the context of near-future OA scenarios, these findings may provide unique insights into the two primary applications of trace elements of bivalve shells as geographical tracers and proxies of environmental conditions. (C) 2019 Elsevier B.V. All rights reserved.