气候变化领域集成服务门户(CCPortal): Warmer, earlier, faster: Cumulative effects of Gulf of Alaska heatwaves on the early life history of Pacific cod

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DOI	10.1525/elementa.2023.00050
	Warmer, earlier, faster: Cumulative effects of Gulf of Alaska heatwaves on the early life history of Pacific cod
	Almeida, L. Zoe; Laurel, Benjamin J.; Thalmann, Hillary L.; Miller, Jessica A.
发表日期	2024
ISSN	2325-1026
起始页码	12
结束页码	1
卷号	12 期号:1
英文摘要	Warming climates are creating unprecedented environmental conditions, such as more frequent and intense marine heatwaves (MHWs), that directly impact phenology and growth of fish and other marine organisms. Understanding individual phenological and growth responses to temperature is critical to predict species and population responses to climate change; however, doing so requires disentangling the effects of temperature on phenology, size, and growth in wild populations. We quantified the relationships between temperature and hatch timing, size-at-age, and early growth in a population of Pacific cod (Gadus macrocephalus) affected by recent MHWs in the Gulf of Alaska. Pacific cod juveniles were collected near Kodiak Island, Alaska, USA, across 11 years, categorized as before (2007, 2009-2010, 2012-2014), during (2015, 2016, 2019), and between (2017, 2018) multiple recent MHWs. We estimated age and growth with otolith structural analysis. Hatching occurred on average 14 days earlier during MHWs and 26 days earlier between than before MHWs. Approximately 53% and 16% of these respective shifts in timing were attributable directly to warmer temperatures during incubation. Size-at-age was similar across periods at younger ages (90 days), but approximately 7 mm and 11 mm larger than before MHWs at older ages (132 days) during and between MHWs, respectively. These differences in size-at-age were partially related to growth responses that differed among MHW periods. However, observed differences in growth rate could not account for the observed increases in size-at-age. We found that temperature alone could not explain the changes in growth and phenology; thus, factors such as parental effects, epigenetics, and selection likely contributed. Our results indicate that spawn timing, size, and growth relationships based on historical thermal responses should be questioned in population forecasting as the global climate continues to warm.
英文关键词	Marine heatwaves; Phenology; Size-at-age; Growth; Otoliths; Generalized additive mixed models
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001174557200001
来源期刊	ELEMENTA-SCIENCE OF THE ANTHROPOCENE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290276
作者单位	Oregon State University; National Oceanic Atmospheric Admin (NOAA) - USA; National Aeronautics & Space Administration (NASA)
推荐引用方式 GB/T 7714	Almeida, L. Zoe,Laurel, Benjamin J.,Thalmann, Hillary L.,et al. Warmer, earlier, faster: Cumulative effects of Gulf of Alaska heatwaves on the early life history of Pacific cod[J],2024,12(1).
APA	Almeida, L. Zoe,Laurel, Benjamin J.,Thalmann, Hillary L.,&Miller, Jessica A..(2024).Warmer, earlier, faster: Cumulative effects of Gulf of Alaska heatwaves on the early life history of Pacific cod.ELEMENTA-SCIENCE OF THE ANTHROPOCENE,12(1).
MLA	Almeida, L. Zoe,et al."Warmer, earlier, faster: Cumulative effects of Gulf of Alaska heatwaves on the early life history of Pacific cod".ELEMENTA-SCIENCE OF THE ANTHROPOCENE 12.1(2024).