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Title
Japanese:Growth disturbances in bivalve shell: Implications for past and future intra-annual scale climate change 
English:Growth disturbances in bivalve shell: Implications for past and future intra-annual scale climate change 
Author
Japanese: Jia Yan, Kotaro Shirai, Kozue Nishida, Liqiang Zhao, Minchen Wang, Huahui Zhang, Yan Feng, Xiangmin Chen, Yidi Zheng, Xing Li, Xin Sun, Li Tian, Haijun Song.  
English: Jia Yan, Kotaro Shirai, Kozue Nishida, Liqiang Zhao, Minchen Wang, Huahui Zhang, Yan Feng, Xiangmin Chen, Yidi Zheng, Xing Li, Xin Sun, Li Tian, Haijun Song.  
Language English 
Journal/Book name
Japanese:Science of the Total Environment 
English:Science of the Total Environment 
Volume, Number, Page Vol. 976        179297
Published date May 10, 2025 
Publisher
Japanese:Elsevier 
English:Elsevier 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://www.sciencedirect.com/science/article/abs/pii/S0048969725009337
 
DOI https://doi.org/10.1016/j.scitotenv.2025.179297
Abstract Growth disturbances in bivalve shells are widely observed in both fossil and modern species, yet the conditions and mechanisms driving their formation remain unclear. Through controlled experiments on Mimachlamys nobilis, we demonstrate that abrupt intra-annual temperature fluctuations (≥5 °C) induce shell growth disturbances by altering the energy budget, diverting resources from shell growth to stress responses. Under ≥5 °C fluctuations (Groups C and D), 67 % of the individuals exhibited shell thinning, reduced growth rates, and formed growth disturbance lines (Groups C and D), whereas <5 °C fluctuations (Groups A and B) caused disturbances in only 12 % of the cases. These bivalve growth disturbances serve as a sensitive bio-indicator of short-term temperature fluctuations, providing a novel tool for reconstructing intra-annual level marine climatic fluctuations in deep time.

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