气候变化领域集成服务门户(CCPortal): Seasonal shift in energy allocation from somatic growth to lipid storage and the link between pre-winter condition and overwintering potential in juvenile Pacific cod

CCPortal

DOI	10.1093/icesjms/fsae023
	Seasonal shift in energy allocation from somatic growth to lipid storage and the link between pre-winter condition and overwintering potential in juvenile Pacific cod
	Abookire, Alisa A.; Copeman, Louise A.; Litzow, Michael A.; Laurel, Benjamin J.
发表日期	2024
ISSN	1054-3139
EISSN	1095-9289
起始页码	81
结束页码	4
卷号	81 期号:4
英文摘要	Warming temperatures in the Gulf of Alaska have been linked to recruitment failure in Pacific cod (Gadus macrocephalus), but the mechanisms and timing of mortality events for juveniles are unclear. To date, limited research has focused on overwintering success, and the knowledge of juvenile ecology and physiology is based entirely on summer observations. Here, we investigate the changes in body condition, diet composition, and tissue-specific fatty acid (FA) storage for age-0 Pacific cod in Kodiak, Alaska, from February to December during 2018 and 2020. We observed protracted nearshore residency from June to December. Cod body condition (Kdry) and predicted weight at length were lowest in October, November, and December. Although not different interannually, diet composition varied seasonally, which corresponded to an increase in cod length. A range of condition metrics (HSIwet, FA concentration in liver tissue, and the % of whole body FAs stored in the liver) began to increase in September. Cod prioritized growth during the summer, while in the autumn and pre-winter they allocated more energy into lipid storage. We conclude that seasonal changes in tissue-specific FA storage and pre-winter fish conditions are important factors to consider for understanding overwintering potential of juvenile Pacific cod.
英文关键词	body condition; lipid allocation; liver-lipid storage; nursery habitat; overwinter potential; Pacific cod; pre-winter condition
语种	英语
WOS研究方向	Fisheries ; Marine & Freshwater Biology ; Oceanography
WOS类目	Fisheries ; Marine & Freshwater Biology ; Oceanography
WOS记录号	WOS:001180098800001
来源期刊	ICES JOURNAL OF MARINE SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296510
作者单位	National Oceanic Atmospheric Admin (NOAA) - USA; National Oceanic Atmospheric Admin (NOAA) - USA
推荐引用方式 GB/T 7714	Abookire, Alisa A.,Copeman, Louise A.,Litzow, Michael A.,et al. Seasonal shift in energy allocation from somatic growth to lipid storage and the link between pre-winter condition and overwintering potential in juvenile Pacific cod[J],2024,81(4).
APA	Abookire, Alisa A.,Copeman, Louise A.,Litzow, Michael A.,&Laurel, Benjamin J..(2024).Seasonal shift in energy allocation from somatic growth to lipid storage and the link between pre-winter condition and overwintering potential in juvenile Pacific cod.ICES JOURNAL OF MARINE SCIENCE,81(4).
MLA	Abookire, Alisa A.,et al."Seasonal shift in energy allocation from somatic growth to lipid storage and the link between pre-winter condition and overwintering potential in juvenile Pacific cod".ICES JOURNAL OF MARINE SCIENCE 81.4(2024).