Matches in SemOpenAlex for { <https://semopenalex.org/work/W1985461796> ?p ?o ?g. }
- W1985461796 endingPage "1286" @default.
- W1985461796 startingPage "1268" @default.
- W1985461796 abstract "We evaluated the effects of a rehabilitation project, whose goal was to re-establish longitudinal connectivity for anadromous trout in the regulated river Emån. We used a holistic approach, by tagging and following both upstream-migrating spawners (N = 348) and downstream-migrating smolts (N = 80) and kelts as they passed two hydroelectric plants (HEP 2-3) with nature-like fishways. When migrating upstream, 84–88% of the spawners stopped, primarily at spawning grounds, before reaching HEP2. The proportion of stoppers was lower (56%) for fish that had been to the fishways in previous years, indicating that the recolonization rate is likely to increase over time. Of the spawners that approached the fishway at HEP2, 77% rapidly located the fishway situated next to the tail-race, resulting in an attraction efficiency of 81% and a passage efficiency of 95%. The time required to locate the fishway inside the former channel at HEP3 was substantial, but the attraction efficiency (89%) and passage efficiency (97%) were nevertheless high. The kelts swam downstream mainly in spring, using spill gates and the fishways, to swim past HEP2 and 3 and continue downstream to the Baltic Sea. Iteroparity was confirmed by the fact that 20% of the spawners were tagged in previous years. Smolt loss was about 30% for both HEPs, with a higher turbine-induced loss 30% for fish passing through Francis runners than a Kaplan runner. Fifteen per cent of the tagged smolt reached the sea and none of these fish had swum through the Francis runners. It will probably take many years before longitudinal connectivity is fully re-established in the river Emån, due to substantial losses of both upstream-migrating spawners (35% loss) and downstream-migrating smolts (50%) and kelts. In addition, smolt production in areas upstream of HEP3 is far below carrying capacity. Thus, additional measures that not only facilitate movement of upstream spawners, but also reduce mortality and injuries of downstream migrants are urgently needed to create a self-sustaining fish population. Copyright © 2009 John Wiley & Sons, Ltd." @default.
- W1985461796 created "2016-06-24" @default.
- W1985461796 creator A5070135055 @default.
- W1985461796 creator A5080466130 @default.
- W1985461796 date "2009-02-13" @default.
- W1985461796 modified "2023-10-06" @default.
- W1985461796 title "Connectivity is a two-way street-the need for a holistic approach to fish passage problems in regulated rivers" @default.
- W1985461796 cites W1968042909 @default.
- W1985461796 cites W1972770867 @default.
- W1985461796 cites W1973521192 @default.
- W1985461796 cites W1974879990 @default.
- W1985461796 cites W1981322431 @default.
- W1985461796 cites W1986217602 @default.
- W1985461796 cites W1993035279 @default.
- W1985461796 cites W1994923459 @default.
- W1985461796 cites W2000658105 @default.
- W1985461796 cites W2005406544 @default.
- W1985461796 cites W2005672283 @default.
- W1985461796 cites W2007770413 @default.
- W1985461796 cites W2008097785 @default.
- W1985461796 cites W2010684581 @default.
- W1985461796 cites W2012107095 @default.
- W1985461796 cites W2017388788 @default.
- W1985461796 cites W2020844047 @default.
- W1985461796 cites W2026528767 @default.
- W1985461796 cites W2026627180 @default.
- W1985461796 cites W2027871629 @default.
- W1985461796 cites W2028596337 @default.
- W1985461796 cites W2030056535 @default.
- W1985461796 cites W2030718142 @default.
- W1985461796 cites W2032952319 @default.
- W1985461796 cites W2033550688 @default.
- W1985461796 cites W2036876170 @default.
- W1985461796 cites W2039168343 @default.
- W1985461796 cites W2046147250 @default.
- W1985461796 cites W2053524081 @default.
- W1985461796 cites W2055691108 @default.
- W1985461796 cites W2060544279 @default.
- W1985461796 cites W2064722604 @default.
- W1985461796 cites W2067068095 @default.
- W1985461796 cites W2079263831 @default.
- W1985461796 cites W2079512271 @default.
- W1985461796 cites W2080415337 @default.
- W1985461796 cites W2081632123 @default.
- W1985461796 cites W2082794728 @default.
- W1985461796 cites W2083570299 @default.
- W1985461796 cites W2097309864 @default.
- W1985461796 cites W2099048416 @default.
- W1985461796 cites W2102295783 @default.
- W1985461796 cites W2103687896 @default.
- W1985461796 cites W2125393424 @default.
- W1985461796 cites W2129318133 @default.
- W1985461796 cites W2133357488 @default.
- W1985461796 cites W2139171103 @default.
- W1985461796 cites W2149683554 @default.
- W1985461796 cites W2154389556 @default.
- W1985461796 cites W2165742276 @default.
- W1985461796 cites W2168310108 @default.
- W1985461796 cites W2169439109 @default.
- W1985461796 cites W231439473 @default.
- W1985461796 cites W2324234542 @default.
- W1985461796 cites W4231641106 @default.
- W1985461796 cites W4246900775 @default.
- W1985461796 cites W4247854585 @default.
- W1985461796 cites W4250341826 @default.
- W1985461796 cites W4253445259 @default.
- W1985461796 cites W4253684742 @default.
- W1985461796 cites W4256295056 @default.
- W1985461796 doi "https://doi.org/10.1002/rra.1228" @default.
- W1985461796 hasPublicationYear "2009" @default.
- W1985461796 type Work @default.
- W1985461796 sameAs 1985461796 @default.
- W1985461796 citedByCount "148" @default.
- W1985461796 countsByYear W19854617962012 @default.
- W1985461796 countsByYear W19854617962013 @default.
- W1985461796 countsByYear W19854617962014 @default.
- W1985461796 countsByYear W19854617962015 @default.
- W1985461796 countsByYear W19854617962016 @default.
- W1985461796 countsByYear W19854617962017 @default.
- W1985461796 countsByYear W19854617962018 @default.
- W1985461796 countsByYear W19854617962019 @default.
- W1985461796 countsByYear W19854617962020 @default.
- W1985461796 countsByYear W19854617962021 @default.
- W1985461796 countsByYear W19854617962022 @default.
- W1985461796 countsByYear W19854617962023 @default.
- W1985461796 crossrefType "journal-article" @default.
- W1985461796 hasAuthorship W1985461796A5070135055 @default.
- W1985461796 hasAuthorship W1985461796A5080466130 @default.
- W1985461796 hasConcept C117773394 @default.
- W1985461796 hasConcept C127162648 @default.
- W1985461796 hasConcept C127413603 @default.
- W1985461796 hasConcept C18903297 @default.
- W1985461796 hasConcept C191172861 @default.
- W1985461796 hasConcept C201344424 @default.
- W1985461796 hasConcept C21547014 @default.
- W1985461796 hasConcept C2776207758 @default.
- W1985461796 hasConcept C2909208804 @default.
- W1985461796 hasConcept C31258907 @default.