Potential environment effect on ultrahigh resolution Sr/Ca of giant clam shells from South China Sea

IF 2.7 2区生物学 Q1 MARINE & FRESHWATER BIOLOGY Coral Reefs Pub Date : 2024-09-02 DOI:10.1007/s00338-024-02555-z

Chengcheng Liu, Hong Yan, Liqiang Zhao, Nanyu Zhao, Fan Luo, Hanfeng Wen, Haotian Yang, Wei Yang, Jialong Hao, Chengde Liang, Kentaro Tanaka, Naoko Murakami-Sugihara, Kotaro Shirai, Naoto Takahata, John Dodson, Bernd R. Schöne

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Abstract

The hourly to monthly resolution Sr/Ca profiles of modern juvenile giant clam (Tridacna spp.) shells from the northern South China Sea were obtained using ICP-OES, LA-ICP-MS and NanoSIMS. The results showed the variability of Sr/Ca profiles determined by different analytical methods were consistent on monthly time scale. The hourly resolved Sr/Ca determined by NanoSIMS showed pronounced daily cycles which may be associated with the diurnal cycle of the physiology, environment and/or weather condition. By comparison of daily resolution Sr/Ca and contemporaneous instrumental environment data, no robust link was observed between environmental parameters and juvenile Tridacna Sr/Ca, and only weak correlation was found between daily outgoing longwave radiation (OLR) (r = − 0.167, p < 0.01) and Sr/Ca. However, the effective solar radiation cannot explain the variability of nightly Sr/Ca, and some other factors are more likely to influence the Sr/Ca of juvenile Tridacna. Moreover, no consistent correlation was observed between Sr/Ca and growth rate of Tridacna. The mechanism of juvenile Tridacna Sr/Ca is still mysterious, conducting artificial culture experiments seems the best way to unravel the mechanisms behind Sr²⁺ incorporation into Tridacna shells.

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环境对南海砗磲贝壳超高分辨率 Sr/Ca 的潜在影响

利用 ICP-OES、LA-ICP-MS 和 NanoSIMS 获得了南海北部现代砗磲幼贝每小时至每月的 Sr/Ca 图谱。结果表明，不同分析方法测定的 Sr/Ca 图谱在月时间尺度上的变化是一致的。纳米多微量扫描仪测定的每小时分辨率 Sr/Ca 显示出明显的日周期，这可能与生理、环境和/或天气条件的昼夜周期有关。通过比较日分辨率 Sr/Ca 和同期仪器环境数据，没有观察到环境参数与砗磲幼体 Sr/Ca 之间存在稳健的联系，仅发现日外向长波辐射（OLR）（r = - 0.167，p <0.01）与 Sr/Ca 之间存在微弱的相关性。然而，有效太阳辐射并不能解释夜间 Sr/Ca 的变化，其他因素更有可能影响稚砗磲的 Sr/Ca。此外，Sr/Ca 与砗磲的生长速度之间也没有一致的相关性。稚砗磲 Sr/Ca 的作用机制仍是一个谜，进行人工培养实验似乎是揭示砗磲壳中 Sr2+ 的作用机制的最佳途径。

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来源期刊

Coral Reefs 生物-海洋与淡水生物学

CiteScore

6.80

自引率

11.40%

发文量

111

审稿时长

4-8 weeks

期刊介绍： Coral Reefs, the Journal of the International Coral Reef Society, presents multidisciplinary literature across the broad fields of reef studies, publishing analytical and theoretical papers on both modern and ancient reefs. These encourage the search for theories about reef structure and dynamics, and the use of experimentation, modeling, quantification and the applied sciences. Coverage includes such subject areas as population dynamics; community ecology of reef organisms; energy and nutrient flows; biogeochemical cycles; physiology of calcification; reef responses to natural and anthropogenic influences; stress markers in reef organisms; behavioural ecology; sedimentology; diagenesis; reef structure and morphology; evolutionary ecology of the reef biota; palaeoceanography of coral reefs and coral islands; reef management and its underlying disciplines; molecular biology and genetics of coral; aetiology of disease in reef-related organisms; reef responses to global change, and more.