DOI: 10.1111/gcb.13531
论文题名: Climate change alters the reproductive phenology and investment of a lacustrine fish, the three-spine stickleback
作者: Hovel R.A. ; Carlson S.M. ; Quinn T.P.
刊名: Global Change Biology
出版年: 2017
卷: 23, 期: 6 起始页码: 2308
结束页码: 2320
语种: 英语
英文关键词: boreal lake
; climate change
; growth
; ice breakup
; lacustrine fish
; phenology
; reproduction
; three-spine stickleback
; water temperature
Scopus关键词: climate change
; climate effect
; ecological impact
; fish
; growth response
; ice breakup
; lacustrine environment
; life history trait
; phenology
; reproduction
; water temperature
; Gasterosteus aculeatus
英文摘要: High-latitude lakes are particularly sensitive to the effects of global climate change, demonstrating earlier ice breakup, longer ice-free seasons, and increased water temperatures. Such physical changes have implications for diverse life-history traits in taxa across entire lake food webs. Here, we use a five-decade time series from an Alaskan lake to explore effects of climate change on growth and reproduction of a widely distributed lacustrine fish, the three-spine stickleback (Gasterosteus aculeatus). We used multivariate autoregressive state-space (MARSS) models to describe trends in the mean length for multiple size classes and to explore the influence of physical (date of ice breakup, surface water temperature) and biological (density of con- and heterospecifics) factors. As predicted, mean size of age 1 and older fish at the end of the growing season increased across years with earlier ice breakup and warmer temperatures. In contrast, mean size of age 0 fish decreased over time. Overall, lower fish density and warmer water temperatures were associated with larger size for all cohorts. Earlier ice breakup was associated with larger size for age 1 and older fish but, paradoxically, with smaller size of age 0 fish. To explore this latter result, we used mixing models on age 0 size distributions, which revealed an additional cohort in years with early ice breakup, lowering the mean size of age 0 fish. Moreover, early ice breakup was associated with earlier breeding, evidenced by earlier capture of age 0 fish. Our results suggest that early ice breakup altered both timing and frequency of breeding; three-spine stickleback spawned earlier and more often in response to earlier ice breakup date. While previous studies have shown the influence of changing conditions in northern lakes on breeding timing and growth, this is the first to document increased breeding frequency, highlighting another pathway by which climate change can alter the ecology of northern lakes. © 2016 John Wiley & Sons Ltd 资助项目: Hovel, R.A.
; School of Aquatic and Fishery Sciences, University of Washington, Box 355020, United States
; 电子邮件: rhovel@u.washington.edu
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60944
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 355020, Seattle, WA, United States; Department of Environmental Science, Policy & Management, University of California, Berkeley, CA, United States
Recommended Citation:
Hovel R.A.,Carlson S.M.,Quinn T.P.. Climate change alters the reproductive phenology and investment of a lacustrine fish, the three-spine stickleback[J]. Global Change Biology,2017-01-01,23(6)