globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12242
论文题名:
Sensitivity of salmonid freshwater life history in western US streams to future climate conditions
作者: Beer W.N.; Anderson J.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:8
起始页码: 2547
结束页码: 2556
语种: 英语
英文关键词: Bioenergetics ; Growth ; Modeling ; Salmonid ; Snowpack ; Water temperature
Scopus关键词: air temperature ; bioenergetics ; climate conditions ; climate effect ; egg development ; growth response ; juvenile ; life history ; salmonid ; snowpack ; stream ; survival ; water temperature ; animal ; article ; bioenergy ; biological model ; climate change ; growth ; growth, development and aging ; model ; rainbow trout ; river ; salmon ; salmonid ; season ; snowpack ; temperature ; United States ; water temperature ; bioenergetics ; growth ; modeling ; salmonid ; snowpack ; water temperature ; Animals ; California ; Climate Change ; Models, Biological ; Northwestern United States ; Oncorhynchus mykiss ; Rivers ; Salmon ; Seasons ; Temperature ; California ; Central Valley [California] ; Columbia Basin ; United States ; Oncorhynchus mykiss ; Oncorhynchus tshawytscha ; Salmonidae
英文摘要: We projected effects of mid-21st century climate on the early life growth of Chinook salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss) in western United States streams. Air temperature and snowpack trends projected from observed 20th century trends were used to predict future seasonal stream temperatures. Fish growth from winter to summer was projected with temperature-dependent models of egg development and juvenile growth. Based on temperature data from 115 sites, by mid-21st century, the effects of climate change are projected to be mixed. Fish in warm-region streams that are currently cooled by snow melt will grow less, and fish in suboptimally cool streams will grow more. Relative to 20th century conditions, by mid-21st century juvenile salmonids' weights are expected to be lower in the Columbia Basin and California Central Valley, but unchanged or greater in coastal and mountain streams. Because fish weight affects fish survival, the predicted changes in weight could impact population fitness depending on other factors such as density effects, food quality and quantity changes, habitat alterations, etc. The level of year-to-year variability in stream temperatures is high and our analysis suggests that identifying effects of climate change over the natural variability will be difficult except in a few streams. © 2013 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/62384
Appears in Collections:影响、适应和脆弱性

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作者单位: School of Aquatic and Fishery Sciences, University of Washington, Box 358218, Seattle, WA 98195, United States

Recommended Citation:
Beer W.N.,Anderson J.J.. Sensitivity of salmonid freshwater life history in western US streams to future climate conditions[J]. Global Change Biology,2013-01-01,19(8)
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