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DOI: 10.1371/journal.pone.0086321
论文题名:
Unscreened Water-Diversion Pipes Pose an Entrainment Risk to the Threatened Green Sturgeon, Acipenser medirostris
作者: Timothy D. Mussen; Dennis Cocherell; Jamilynn B. Poletto; Jon S. Reardon; Zachary Hockett; Ali Ercan; Hossein Bandeh; M. Levent Kavvas; Joseph J. Cech Jr; Nann A. Fangue
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2014
发表日期: 2014-1-15
卷: 9, 期:1
语种: 英语
英文关键词: Fishes ; Sturgeons ; Surface water ; Swimming ; Flow rate ; Freshwater fish ; Animal behavior ; Marine fish
英文摘要: Over 3,300 unscreened agricultural water diversion pipes line the levees and riverbanks of the Sacramento River (California) watershed, where the threatened Southern Distinct Population Segment of green sturgeon, Acipenser medirostris, spawn. The number of sturgeon drawn into (entrained) and killed by these pipes is greatly unknown. We examined avoidance behaviors and entrainment susceptibility of juvenile green sturgeon (35±0.6 cm mean fork length) to entrainment in a large (>500-kl) outdoor flume with a 0.46-m-diameter water-diversion pipe. Fish entrainment was generally high (range: 26–61%), likely due to a lack of avoidance behavior prior to entering inescapable inflow conditions. We estimated that up to 52% of green sturgeon could be entrained after passing within 1.5 m of an active water-diversion pipe three times. These data suggest that green sturgeon are vulnerable to unscreened water-diversion pipes, and that additional research is needed to determine the potential impacts of entrainment mortality on declining sturgeon populations. Data under various hydraulic conditions also suggest that entrainment-related mortality could be decreased by extracting water at lower diversion rates over longer periods of time, balancing agricultural needs with green sturgeon conservation.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0086321&type=printable
Citation statistics:
被引频次[WOS]:28   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/19715
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: Wildlife, Fish, and Conservation Biology Department, University of California Davis, Davis, California, United States of America;Wildlife, Fish, and Conservation Biology Department, University of California Davis, Davis, California, United States of America;Wildlife, Fish, and Conservation Biology Department, University of California Davis, Davis, California, United States of America;Wildlife, Fish, and Conservation Biology Department, University of California Davis, Davis, California, United States of America;Department of Civil and Environmental Engineering, University of California Davis, Davis, California, United States of America;Department of Civil and Environmental Engineering, University of California Davis, Davis, California, United States of America;Department of Civil and Environmental Engineering, University of California Davis, Davis, California, United States of America;Department of Civil and Environmental Engineering, University of California Davis, Davis, California, United States of America;Wildlife, Fish, and Conservation Biology Department, University of California Davis, Davis, California, United States of America;Wildlife, Fish, and Conservation Biology Department, University of California Davis, Davis, California, United States of America

Recommended Citation:
Timothy D. Mussen,Dennis Cocherell,Jamilynn B. Poletto,et al. Unscreened Water-Diversion Pipes Pose an Entrainment Risk to the Threatened Green Sturgeon, Acipenser medirostris[J]. PLOS ONE,2014-01-01,9(1)
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