globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12514
论文题名:
Warming temperatures and smaller body sizes: Synchronous changes in growth of North Sea fishes
作者: Baudron A.R.; Needle C.L.; Rijnsdorp A.D.; Tara Marshall C.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期:4
起始页码: 1023
结束页码: 1031
语种: 英语
英文关键词: Climate change ; Dynamic factor analysis ; Ectotherms ; Fish growth ; Fisheries ; Temperature size rule ; Von bertalanffy
Scopus关键词: body size ; climate effect ; commercial species ; dynamic analysis ; fish ; growth ; warming ; water temperature ; Atlantic Ocean ; North Sea ; Pisces ; sea water ; age ; animal ; biological model ; body size ; climate change ; fish ; growth, development and aging ; North Sea ; physiology ; temperature ; Age Factors ; Animals ; Body Size ; Climate Change ; Fishes ; Models, Biological ; North Sea ; Seawater ; Temperature
英文摘要: Decreasing body size has been proposed as a universal response to increasing temperatures. The physiology behind the response is well established for ectotherms inhabiting aquatic environments: as higher temperatures decrease the aerobic capacity, individuals with smaller body sizes have a reduced risk of oxygen deprivation. However, empirical evidence of this response at the scale of communities and ecosystems is lacking for marine fish species. Here, we show that over a 40-year period six of eight commercial fish species in the North Sea examined underwent concomitant reductions in asymptotic body size with the synchronous component of the total variability coinciding with a 1-2 °C increase in water temperature. Smaller body sizes decreased the yield-per-recruit of these stocks by an average of 23%. Although it is not possible to ascribe these phenotypic changes unequivocally to temperature, four aspects support this interpretation: (i) the synchronous trend was detected across species varying in their life history and life style; (ii) the decrease coincided with the period of increasing temperature; (iii) the direction of the phenotypic change is consistent with physiological knowledge; and (iv) no cross-species synchrony was detected in other species-specific factors potentially impacting growth. Our findings support a recent model-derived prediction that fish size will shrink in response to climate-induced changes in temperature and oxygen. The smaller body sizes being projected for the future are already detectable in the North Sea. © 2014 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61952
Appears in Collections:影响、适应和脆弱性

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作者单位: Institute of Biological and Environmental Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, Scotland, United Kingdom; Marine Laboratory, Marine Scotland - Science, PO Box 101 375 Victoria Road, Aberdeen, AB11 9DB, Scotland, United Kingdom; Institute of Marine Resources, Ecosystem Studies and Aquaculture and Fisheries Group, IMARES, Haringkade 1, IJmuiden, 1976 CP,, Netherlands

Recommended Citation:
Baudron A.R.,Needle C.L.,Rijnsdorp A.D.,et al. Warming temperatures and smaller body sizes: Synchronous changes in growth of North Sea fishes[J]. Global Change Biology,2014-01-01,20(4)
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