globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13688
论文题名:
Large but uneven reduction in fish size across species in relation to changing sea temperatures
作者: van Rijn I.; Buba Y.; DeLong J.; Kiflawi M.; Belmaker J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:9
起始页码: 3667
结束页码: 3674
语种: 英语
英文关键词: climate change ; ectotherms ; fish growth ; fisheries ; temperature–size rule
Scopus关键词: Pisces
英文摘要: Ectotherms often attain smaller body sizes when they develop at higher temperatures. This phenomenon, known as the temperature–size rule, has important consequences for global fisheries, whereby ocean warming is predicted to result in smaller fish and reduced biomass. However, the generality of this phenomenon and the mechanisms that drive it in natural populations remain unresolved. In this study, we document the maximal size of 74 fish species along a steep temperature gradient in the Mediterranean Sea and find strong support for the temperature–size rule. Importantly, we additionally find that size reduction in active fish species is dramatically larger than for more sedentary species. As the temperature dependence of oxygen consumption depends on activity levels, these findings are consistent with the hypothesis that oxygen is a limiting factor shaping the temperature–size rule in fishes. These results suggest that ocean warming will result in a sharp, but uneven, reduction in fish size that will cause major shifts in size-dependent interactions. Moreover, warming will have major implications for fisheries as the main species targeted for harvesting will show the most substantial declines in biomass. © 2017 John Wiley & Sons Ltd
资助项目: We would like to thank Prof. Daniel Pauly for the good advice and theoretical background. This study was supported by The Ministry of Agriculture and Rural Development, Israel (grant number 891-0256-14), and the Binational Science Foundation (BSF, grant number 2014295). Itai van Rijn was supported by the Mediterranean Sea Research Center of Israel (MERCI) and by the Manna Center for Food Safety and Security, Tel Aviv University.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60810
Appears in Collections:影响、适应和脆弱性

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作者单位: School of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel; School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States; Department of Life Sciences, Ben-Gurion University, Be'er Sheva, Israel; The Interuniversity Institute for Marine Sciences of Eilat, Eilat, Israel; The Steinhardt Museum of Natural History, Tel Aviv University, Tel Aviv, Israel

Recommended Citation:
van Rijn I.,Buba Y.,DeLong J.,et al. Large but uneven reduction in fish size across species in relation to changing sea temperatures[J]. Global Change Biology,2017-01-01,23(9)
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