气候变化领域集成服务门户(CCPortal): Reproductive hyperallometry and managing the world's fisheries

CCPortal

DOI	10.1073/pnas.2100695118
	Reproductive hyperallometry and managing the world's fisheries
	Marshall D.J.; Bode M.; Mangel M.; Arlinghaus R.; Dick E.J.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:34
英文摘要	Marine fisheries are an essential component of global food security, but many are close to their limits and some are overfished. The models that guide the management of these fisheries almost always assume reproduction is proportional to mass (isometry), when fecundity generally increases disproportionately to mass (hyperallometry). Judged against several management reference points, we show that assuming isometry overestimates the replenishment potential of exploited fish stocks by 22% (range: 2% to 78%) for 32 of the world's largest fisheries, risking systematic overharvesting. We calculate that target catches based on assumptions of isometry are more than double those based on assumptions of hyperallometry for most species, such that common reference points are set twice as high as they should be to maintain the target level of replenishment. We also show that hyperallometric reproduction provides opportunities for increasing the efficacy of tools that are underused in standard fisheries management, such as protected areas or harvest slot limits. Adopting management strategies that conserve large, hyperfecund fish may, in some instances, result in higher yields relative to traditional approaches. We recommend that future assessment of reference points and quotas include reproductive hyperallometry unless there is clear evidence that it does not occur in that species. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Life history; Marine protected areas; Reproduction
语种	英语
scopus关键词	article; fish stock; fishery management; life history; overharvesting; reproduction
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238823
作者单位	Center for Geometric Biology, Monash University, Melbourne, VIC 3800, Australia; School of Mathematical Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia; Department of Biology, University of Bergen, Bergen, 9020, Norway; Institute of Marine Sciences, University of California, Santa Cruz, CA 95064, United States; Puget Sound Institute, University of Washington, Tacoma, WA 98402, United States; Department of Biology and Ecology of Fishes, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, 12587, Germany; Division of Integrative Fisheries Management, Faculty of Life Sciences, Humboldt-Universität zu Berlin, Berlin, 10115, Germany; Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, Santa Cruz, CA 95060, United States
推荐引用方式 GB/T 7714	Marshall D.J.,Bode M.,Mangel M.,et al. Reproductive hyperallometry and managing the world's fisheries[J],2021,118(34).
APA	Marshall D.J.,Bode M.,Mangel M.,Arlinghaus R.,&Dick E.J..(2021).Reproductive hyperallometry and managing the world's fisheries.Proceedings of the National Academy of Sciences of the United States of America,118(34).
MLA	Marshall D.J.,et al."Reproductive hyperallometry and managing the world's fisheries".Proceedings of the National Academy of Sciences of the United States of America 118.34(2021).