DOI: 10.1016/j.scitotenv.2019.134523
论文题名: Effects of multiple stressors on the distribution of fish communities in 203 headwater streams of Rhine, Elbe and Danube
作者: Mueller M. ; Bierschenk A.M. ; Bierschenk B.M. ; Pander J. ; Geist J.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 703 语种: 英语
英文关键词: Catchment land use
; Freshwater biodiversity conservation
; Hydropower
; Piscivorous birds
; Structural degradation
; Wastewater
Scopus关键词: Biodiversity
; Catchments
; Climate change
; Conservation
; Crops
; Fish
; Land use
; River pollution
; Runoff
; Wastewater
; Wastewater treatment
; Water
; Anthropogenic stressors
; Environmental stressors
; Freshwater biodiversity
; Hydropower
; Piscivorous birds
; Structural degradation
; Structural modifications
; Wastewater treatment plants
; Rivers
; biodiversity
; bird
; catchment
; community dynamics
; degradation
; environmental stress
; fish
; freshwater ecosystem
; headwater
; hydroelectric power plant
; wastewater
; Article
; biota
; catchment
; environmental erosion
; environmental protection
; fish
; food availability
; geography
; land use
; macroinvertebrate
; maize
; nonhuman
; organism community
; predator
; priority journal
; riparian ecosystem
; species composition
; species distribution
; stream (river)
; stress
; waste water treatment plant
; water and water related phenomena
; Danube River
; Elbe River
; Rhine River
; Aves
; Pisces
; Zea mays
英文摘要: Fishes in European rivers are threatened by manifold stressors such as structural degradation, water pollution, overexploitation, land-use changes in the catchment, invasive species and global processes including climate change. Identifying main stressors in a stream/river system is of utterly importance for efficiently utilizing the scarce funds for conservation measures in order to achieve the best possible outcome. Within 203 headwater streams of Rhine, Elbe and Danube, we quantified the relative influence of different environmental stressors (water chemistry, food availability (macroinvertebrates), terrestrial predators) and anthropogenic stressors (land use, structural modification of streams) on fish assemblages at different spatial scales based on multivariate biota-environment models. In our analyses, the predictor variables percentage of impoundments, crop farming (especially erosion-prone crops such as maize) and ground sealing in the catchments, the number of wastewater treatment plants and biogas plants in the catchments as well as structural modifications of river banks were most often identified as stressors influencing fish community composition. However, the effects of the stressors varied between the investigated survey-area scales (two different catchments sizes and riparian strips) and regionally (entire study area, major drainage systems, river catchments, stream sizes, geographical subregions). In most cases, fish community composition was simultaneously affected by multiple stressors, underpinning the need for a more holistic and ecosystem-based approach in freshwater conservation and restoration. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159320
Appears in Collections: 气候变化与战略
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作者单位: Aquatic Systems Biology Unit, Department of Ecology and Ecosystem Management, Technical University of Munich, Mühlenweg 22, Freising, D-85350, Germany
Recommended Citation:
Mueller M.,Bierschenk A.M.,Bierschenk B.M.,et al. Effects of multiple stressors on the distribution of fish communities in 203 headwater streams of Rhine, Elbe and Danube[J]. Science of the Total Environment,2020-01-01,703