气候变化领域集成服务门户(CCPortal): Otolith biogeochemistry reveals possible impacts of extreme climate events on population connectivity of a highly migratory fish, Japanese Spanish mackerel Scomberomorus niphonius

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DOI	10.1007/s42995-024-00229-x
	Otolith biogeochemistry reveals possible impacts of extreme climate events on population connectivity of a highly migratory fish, Japanese Spanish mackerel Scomberomorus niphonius
	Pan, Xindong; Chen, Yong; Jiang, Tao; Yang, Jian; Tian, Yongjun
发表日期	2024
ISSN	2096-6490
EISSN	2662-1746
英文摘要	Climate change, particularly extreme climate events, is likely to alter the population connectivity in diverse taxa. While the population connectivity for highly migratory species is expected to be vulnerable to climate change, the complex migration patterns has made the measurement difficult and studies rare. However, otolith biogeochemistry provides the possibility to evaluate these climate-induced impacts. Japanese Spanish mackerel Scomberomorus niphonius is a highly migratory fish that is widely distributed in the northwest Pacific. Otoliths biogeochemistry of age-1 spawning or spent individuals from three consecutive years (2016-2018), during which a very strong El Ni & ntilde;o was experienced (2015-2016), were analyzed to evaluate the temporal variation of connectivity for S. niphonius population along the coast of China. The elemental concentrations of the whole otolith showed that Ba:Ca and Mg:Ca values were found to significantly increase in the El Ni & ntilde;o year. The random forest classification and clustering analysis indicated a large-scale connectivity between East China Sea and the Yellow Sea in the El Ni & ntilde;o year whereas the local S. niphonius assemblages in different spawning areas were more self-sustaining after the El Ni & ntilde;o year. These findings lead to the hypothesis that environmental conditions associated with the El Ni & ntilde;o Southern Oscillation (ENSO) events in the Northern Pacific Ocean would likely influence the population connectivity of S. niphonius. If so, extreme climate events can result in profound changes in the extent, pattern and connectivity of migratory fish populations. Our study demonstrates that otolith biogeochemistry could provide insight towards revealing how fish population response to extreme climate events.
英文关键词	Population connectivity; ENSO; Otolith biogeochemistry; Migration; Scomberomorus niphonius
语种	英语
WOS研究方向	Marine & Freshwater Biology
WOS类目	Marine & Freshwater Biology
WOS记录号	WOS:001211468600001
来源期刊	MARINE LIFE SCIENCE & TECHNOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290016
作者单位	Ocean University of China; Ocean University of China; Ocean University of China; State University of New York (SUNY) System; State University of New York (SUNY) Stony Brook; Chinese Academy of Fishery Sciences; Freshwater Fisheries Research Center, CAFS
推荐引用方式 GB/T 7714	Pan, Xindong,Chen, Yong,Jiang, Tao,et al. Otolith biogeochemistry reveals possible impacts of extreme climate events on population connectivity of a highly migratory fish, Japanese Spanish mackerel Scomberomorus niphonius[J],2024.
APA	Pan, Xindong,Chen, Yong,Jiang, Tao,Yang, Jian,&Tian, Yongjun.(2024).Otolith biogeochemistry reveals possible impacts of extreme climate events on population connectivity of a highly migratory fish, Japanese Spanish mackerel Scomberomorus niphonius.MARINE LIFE SCIENCE & TECHNOLOGY.
MLA	Pan, Xindong,et al."Otolith biogeochemistry reveals possible impacts of extreme climate events on population connectivity of a highly migratory fish, Japanese Spanish mackerel Scomberomorus niphonius".MARINE LIFE SCIENCE & TECHNOLOGY (2024).