DOI: 10.1111/ele.12947
Scopus记录号: 2-s2.0-85044775933
论文题名: The energetics of fish growth and how it constrains food-web trophic structure
作者: Barneche D.R. ; Allen A.P.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期: 6 起始页码: 836
结束页码: 844
语种: 英语
英文关键词: Biomass
; climate change
; efficiency
; fisheries
; physiology
; productivity
; trophic pyramids
Scopus关键词: Pisces
英文摘要: The allocation of metabolic energy to growth fundamentally influences all levels of biological organisation. Here we use a first-principles theoretical model to characterise the energetics of fish growth at distinct ontogenetic stages and in distinct thermal regimes. Empirically, we show that the mass scaling of growth rates follows that of metabolic rate, and is somewhat steeper at earlier ontogenetic stages. We also demonstrate that the cost of growth, Em, varies substantially among fishes, and that it may increase with temperature, trophic level and level of activity. Theoretically, we show that Em is a primary determinant of the efficiency of energy transfer across trophic levels, and that energy is transferred more efficiently between trophic levels if the prey are young and sedentary. Overall, our study demonstrates the importance of characterising the energetics of individual growth in order to understand constraints on the structure of food webs and ecosystems. © 2018 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107445
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Centre for Geometric Biology, School of Biological Sciences, Monash University, Clayton, VIC, Australia; Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
Recommended Citation:
Barneche D.R.,Allen A.P.. The energetics of fish growth and how it constrains food-web trophic structure[J]. Ecology Letters,2018-01-01,21(6)