气候变化领域集成服务门户(CCPortal): Modeling potential consequences of climate-driven sex reversal on Southern and Summer Flounder population dynamics

CCPortal

DOI	10.1002/mcf2.10289
	Modeling potential consequences of climate-driven sex reversal on Southern and Summer Flounder population dynamics
	Conrad, H. M.; Kindsvater, H. K.
发表日期	2024
ISSN	1942-5120
起始页码	16
结束页码	2
卷号	16 期号:2
英文摘要	ObjectiveWe investigate the interacting effects of fishery selectivity and sexual dimorphism by using the fisheries for Southern Flounder Paralichthys lethostigma and Summer Flounder P. dentatus as case studies. In both species, females are larger than males, and temperature-sensitive sex determination can lead to an increased proportion of males at sexual differentiation in warmer temperatures.MethodsWe developed a size-, age-, and sex-structured population dynamics model for each species to understand how temperature-induced sex reversal will interact with harvesting to impact population productivity. We considered scenarios with realistic sex ratios and varying levels of fishing pressure.ResultOur models of these species show that population egg production, abundance, biomass, and catch will all be constrained if sex ratios at differentiation become more male-biased. For both species, climate-induced changes to the sex ratio in early-life stages could have a greater impact on relative catch than fishing mortality. We demonstrate that the spawning potential ratio may not be sensitive to climate-induced changes in the sex ratio unless we account for changes in the sex ratio at differentiation in the historic baseline reproductive potential.ConclusionThese findings underscore the importance of utilizing sex-specific stock assessments for species with temperature-sensitive sex determination mechanisms. If climate change is inducing sex reversal in the wild populations of these two flounder species, it could have major impacts on fishery productivity.Impact statement
英文关键词	California Halibut; Paralichthys dentatus; Paralichthys lethostigma; reference points; sex ratio; temperature-dependent sex determination
语种	英语
WOS研究方向	Fisheries ; Marine & Freshwater Biology
WOS类目	Fisheries ; Marine & Freshwater Biology
WOS记录号	WOS:001199451800001
来源期刊	MARINE AND COASTAL FISHERIES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298852
作者单位	Virginia Polytechnic Institute & State University
推荐引用方式 GB/T 7714	Conrad, H. M.,Kindsvater, H. K.. Modeling potential consequences of climate-driven sex reversal on Southern and Summer Flounder population dynamics[J],2024,16(2).
APA	Conrad, H. M.,&Kindsvater, H. K..(2024).Modeling potential consequences of climate-driven sex reversal on Southern and Summer Flounder population dynamics.MARINE AND COASTAL FISHERIES,16(2).
MLA	Conrad, H. M.,et al."Modeling potential consequences of climate-driven sex reversal on Southern and Summer Flounder population dynamics".MARINE AND COASTAL FISHERIES 16.2(2024).