{"refrec":{"BRefID":351785,"RR":"<b>Renardy, S.; Takriet, A.; Benitez, J.-P.; Dierckx, A.; Baeyens, R.; Coeck, J.; Pauwels, I.S.; Mouton, A.; Archambeau, P.; Dewals, B.; Pirotton, M.; Erpicum, S.; Ovidio, M.</b> (2021). Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (<i>Salmo salar</i> L.) approaching a bifurcation between a hydropower station and a navigation canal. <i>Ecol. Eng. 169</i>: 106304. <a href=\"https://dx.doi.org/10.1016/j.ecoleng.2021.106304\" target=\"_blank\">https://dx.doi.org/10.1016/j.ecoleng.2021.106304</a>","BEntID":349491,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Ecol. Eng. 169</i>: 106304. <a href=\"https://dx.doi.org/10.1016/j.ecoleng.2021.106304\" target=\"_blank\">https://dx.doi.org/10.1016/j.ecoleng.2021.106304</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Renardy, S.; Takriet, A.; Benitez, J.-P.; Dierckx, A.; Baeyens, R.; Coeck, J.; Pauwels, I.S.; Mouton, A.; Archambeau, P.; Dewals, B.; Pirotton, M.; Erpicum, S.; Ovidio, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Renardy, S. <i>et al.</i>","Englishabstract":"Contrary to small- and medium-sized rivers, little attention has been paid to the downstream migration of Atlantic salmon smolts in large-sized rivers and the size-related impact of hydropower stations. From 2014 to 2016, we investigated the downstream migration of n = 72 acoustic-tagged smolts in the Meuse river at a bifurcation zone between a hydropower station equipped with three Kaplan turbines and a navigation canal. A hydrodynamic model that solves the depth-integrated shallow water equations on a Cartesian grid using a finite volume technique was used to infer the influence of water discharge and flow velocity on the smolts' behaviour upstream of the hydroelectric complex. Of the migrating smolts, 41.5% performed back and forth movements before approaching the complex for the first time, sometimes over long distances and at a slow pace, leading to significant delays (3–298 h) Beyond about 250 m</span></span><sup>3</sup> s<sup>−1</sup>, the water flow direction changes towards the hydropower station with a gradual acceleration. A median water discharge of 161 m<sup>3</sup> s<sup>−1</sup> and associated median flow velocity of 0.14 m s<sup>−1</sup> tended to favour a more direct and downstream movement towards the hydropower station. On the other hand, the navigation canal was mainly approached at low water discharge (median 132 m<sup>3</sup> s<sup>−1</sup>), due to a higher flow velocity (median 0.11 m s<sup>−1</sup><span>) at the entrance. Of the released smolts, only 38.6% passed through the complex, of which 36.4% migrated by the navigation canal and 63.6% by the hydropower station, with a median research time of 04:44. Among all the released individuals, the escapement rate at the end of the study site was 2.9% by the canal and 8.3% by the Meuse river. This site, which offers two non-optimal, unattractive and unsafe migration routes, turns out to be problematic for successful downstream smolt migration.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (<i>Salmo salar</i> L.) approaching a bifurcation between a hydropower station and a navigation canal","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-21 01:33:09.208463","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Migratory fish; Downstream migration; Hydroelectricity; Hydraulics; River restoration; Large-sized river","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2022-10-11","DateCreate":"2022-05-06","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000674453000010","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.ecoleng.2021.106304"},"refs":null,"anarec":{"AnaID":351785,"PubliDate":2021,"Pagination":"106304","XtraPublOfAnaID":null,"ISBN":null,"Volume":"169","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":56951,"SerRR":"Ecological Engineering. 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