气候变化领域集成服务门户(CCPortal): Tidally Induced Temporal Variations in Growth of Young-of-the-Year Pacific Cod in the Yellow Sea

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DOI	10.1029/2020JC016696
	Tidally Induced Temporal Variations in Growth of Young-of-the-Year Pacific Cod in the Yellow Sea
	Li J.; Jiang F.; Wu R.; Zhang C.; Tian Y.; Sun P.; Yu H.; Liu Y.; Ye Z.; Ma S.; Liu S.; Dong X.
发表日期	2021
ISSN	21699275
卷号	126 期号:6
英文摘要	The Yellow Sea is the southern limit of the distribution of Pacific cod (Gadus microcephalus), and the Yellow Sea Cold Water Mass (YSCWM) provides an appropriate over-summering habitat for this species. Tidal current is the major component of the Yellow Sea hydrodynamic system, and its periodic variations influence the local ecological conditions and related ecosystems, particularly in the YSCWM, which is stratified in summer. To investigate the influence of tidal currents on Pacific cod growth, otolith daily increment in young-of-the-year (YOY) Pacific cod in the Yellow Sea was analyzed in 2017. These data were integrated with a simulated tidal current using a multi-scenario time-delay analysis. This showed that: (1) the otolith daily increment exhibited a strong signal similar to the fortnightly tidal variation; (2) there was a lag of ∼8 days between the highest growth rate induced by the tidal current variation and monthly spring tide; and (3) the influence of the tidal current on otolith daily growth was stronger after migration of the cod into the YSCWM, particularly during the settlement stage. Given the stratified ocean structure during the over-summering period, enhanced tidal mixing during the fortnightly spring tide would improve the exchange of nutrients and oxygen within the YSCWM, and lead to a delayed response of otolith growth due to feeding/digestion and subsequent growth. Therefore, variations in the tidal current have a marked positive ecological effect on the growth of YOY Pacific cod, and ultimately on the YSCWM ecosystem. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	ecological influence; otolith daily increment; Pacific cod; tidal current; Yellow Sea Cold Water Mass; young-of-the-year
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186267
作者单位	Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China; Laboratory of Fisheries Oceanography, Ocean University of China, Qingdao, China; Frontiers Science Center for Deep Ocean Multispheres and Earth System (FDOMES), Ocean University of China, Qingdao, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, China; Shandong Hydrobios Resources Conservation and Management Center, Yantai, China
推荐引用方式 GB/T 7714	Li J.,Jiang F.,Wu R.,et al. Tidally Induced Temporal Variations in Growth of Young-of-the-Year Pacific Cod in the Yellow Sea[J],2021,126(6).
APA	Li J..,Jiang F..,Wu R..,Zhang C..,Tian Y..,...&Dong X..(2021).Tidally Induced Temporal Variations in Growth of Young-of-the-Year Pacific Cod in the Yellow Sea.Journal of Geophysical Research: Oceans,126(6).
MLA	Li J.,et al."Tidally Induced Temporal Variations in Growth of Young-of-the-Year Pacific Cod in the Yellow Sea".Journal of Geophysical Research: Oceans 126.6(2021).