Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR024428 |
Physical Controls on Salmon Redd Site Selection in Restored Reaches of a Regulated, Gravel-Bed River | |
Harrison, Lee R.1,2; Bray, Erin3; Overstreet, Brandon4; Legleiter, Carl J.5; Brown, Rocko A.6; Merz, Joseph E.7; Bond, Rosealea M.1,7; Nicol, Colin L.1,7; Dunne, Thomas8 | |
2019-11-12 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA |
英文摘要 | Large-scale river restoration programs have emerged recently as a tool for improving spawning habitat for native salmonids in highly altered river ecosystems. Few studies have quantified the extent to which restored habitat is utilized by salmonids, which habitat features influence redd site selection, or the persistence of restored habitat over time. We investigated fall-run Chinook salmon spawning site utilization and measured and modeled corresponding habitat characteristics in two restored reaches: a reach of channel and floodplain enhancement completed in 2013 and a reconfigured channel and floodplain constructed in 2002. Redd surveys demonstrated that both restoration projects supported a high density of salmon redds, 3 and 14 years following restoration. Salmon redds were constructed in coarse gravel substrates located in areas of high sediment mobility, as determined by measurements of gravel friction angles and a grain entrainment model. Salmon redds were located near transitions between pool-riffle bedforms in regions of high predicted hyporheic flows. Habitat quality (quantified as a function of stream hydraulics) and hyporheic flow were both strong predictors of redd occurrence, though the relative roles of these variables differed between sites. Our findings indicate that physical controls on redd site selection in restored channels were similar to those reported for natural channels elsewhere. Our results further highlight that in addition to traditional habitat criteria (e.g., water depth, velocity, and substrate size), quantifying sediment texture and mobility, as well as intragravel flow, provides a more complete understanding of the ecological benefits provided by river restoration projects. |
英文关键词 | river restoration salmonid spawning fluvial geomorphology hyporheic exchange sediment transport |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000495817100001 |
WOS关键词 | SPAWNING-HABITAT REHABILITATION ; CHINOOK SALMON ; SEDIMENT TRANSPORT ; ONCORHYNCHUS-TSHAWYTSCHA ; SHEAR-STRESS ; MORPHOLOGICAL UNITS ; HYPORHEIC EXCHANGE ; GRAIN-SIZE ; RESTORATION ; CALIFORNIA |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/223890 |
专题 | 资源环境科学 |
作者单位 | 1.NOAA, Southwest Fisheries Sci Ctr, Santa Cruz, CA 95060 USA; 2.Univ Calif Santa Barbara, Earth Res Inst, Santa Barbara, CA 93106 USA; 3.San Francisco State Univ, Dept Earth & Climate Sci, San Francisco, CA 94132 USA; 4.Univ Wyoming, Dept Geog, Laramie, WY 82071 USA; 5.US Geol Survey, Integrated Modeling & Predict Div, Golden, CO USA; 6.Univ Calif Davis, Ctr Watershed Sci, Davis, CA 95616 USA; 7.Univ Calif Santa Cruz, Ecol & Evolutionary Biol Dept, Santa Cruz, CA 95064 USA; 8.Univ Calif Santa Barbara, Bren Sch Environm Sci & Management, Santa Barbara, CA 93106 USA |
推荐引用方式 GB/T 7714 | Harrison, Lee R.,Bray, Erin,Overstreet, Brandon,et al. Physical Controls on Salmon Redd Site Selection in Restored Reaches of a Regulated, Gravel-Bed River[J]. WATER RESOURCES RESEARCH,2019. |
APA | Harrison, Lee R..,Bray, Erin.,Overstreet, Brandon.,Legleiter, Carl J..,Brown, Rocko A..,...&Dunne, Thomas.(2019).Physical Controls on Salmon Redd Site Selection in Restored Reaches of a Regulated, Gravel-Bed River.WATER RESOURCES RESEARCH. |
MLA | Harrison, Lee R.,et al."Physical Controls on Salmon Redd Site Selection in Restored Reaches of a Regulated, Gravel-Bed River".WATER RESOURCES RESEARCH (2019). |
条目包含的文件 | 条目无相关文件。 |
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