DOI: 10.1007/s10584-017-1916-1
Scopus记录号: 2-s2.0-85013098503
论文题名: Prediction of lake water temperature, dissolved oxygen, and fish habitat under changing climate
作者: Missaghi S. ; Hondzo M. ; Herb W.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2017
卷: 141, 期: 4 起始页码: 747
结束页码: 757
语种: 英语
Scopus关键词: Biochemical oxygen demand
; Climate models
; Dissolution
; Dissolved oxygen
; Ecosystems
; Fish
; Lakes
; Oxygen
; Stream flow
; Surface waters
; Temperature
; Water quality
; Dissolved oxygen concentrations
; Environmental conditions
; Future climate scenarios
; Lake water temperature
; Meteorological condition
; Surface water temperature
; Temporal and spatial variability
; Water quality parameters
; Climate change
; climate change
; environmental conditions
; fish
; growth
; habitat type
; lake water
; spatial variation
; surface water
; thermocline
; three-dimensional modeling
; water quality
; water temperature
英文摘要: We applied a three-dimensional lake water quality model to investigate the influence of local meteorological conditions on fish habitat under one historical and two future climate change scenarios. Compared to the historical normal climate scenario, the averaged surface water temperature increases up to 4 °C and the dissolved oxygen concentration is 1 mgL−1 less during the ice-free seasons under the future climate scenarios. The stratification periods expand up to 23% (46 days), thermocline depths increase 49%, and the onset of anoxia occurs 4 weeks earlier under the future climate scenarios. The dissolved oxygen concentrations and water temperatures are used as the key water quality parameters to investigate the temporal and spatial variabilities of fish habitat. The good growth, restricted growth, and lethal habitats for the coolwater fish change up to 14% of the total lake volume. Compared to the historical normal climate scenario, on average, the lake total volume for good growth, restricted growth, and lethal habitat of coolwater fish change +16, −18, and +85%, respectively. The most significant (70%) changes in lethal habitat for coolwater fish occurs in the upper 5 m of the water column. During summer, a modest increase of lethal habitat for coolwater fish (8% of total lake volume) has a pronounced impact on the good growth habitat. The prediction of spatial locations and time periods of potential fish habitats during stressed or lethal environmental conditions is becoming increasingly important for managing fish habitats under changing climate. © 2017, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84039
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: St. Anthony Falls Laboratory, University of Minnesota, 2 Third Ave. SE, Minneapolis, MN, United States
Recommended Citation:
Missaghi S.,Hondzo M.,Herb W.. Prediction of lake water temperature, dissolved oxygen, and fish habitat under changing climate[J]. Climatic Change,2017-01-01,141(4)