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2019_Lake_Anundsjo: Downstream smolt migration in a Swedish lake
Citatie
Coeck, J., Baeyens, R., De Maerteleire, N., Pieters, S. & Pauwels I.S. 2022. Smolt downstream migration in an hydropower lake (Bredbyn, Sweden). Fithydro project, INBO Belgium. https://marineinfo.org/id/dataset/8101
Contact:
Pauwels, Ine Beschikbaarheid:
![]() Beschrijving
The researchers investigated the efficiency of smolt downstream migration in the lake that feeds the Anundsjo hydropower plant (Bredbyn, Sweden). Specifically the migration speeds and routes were evaluated and the predation risk was estimated. The lake contains a debris catcher and a fish guidance screen that should guide fish to a fish ladder that by-passes the hydropower plant. Sixty hatchery reared salmon smolts were surgically implanted with VEMCO V5 acoustic transmitters to study their downstream migration behavior. Forty of them were released in the river upstream of the lake and the hydropower plant and 20 smolts were released downstream of the hydropower plant in the residual flow of the lake. Only half of the released fishes reached the lake. Thirty five per cent of them entered the hydropower plant and were not observed downstream. The others were predated in the lake. None of the fishes found the entrance to the fish ladder. The results were used to advise local managers. meer
The study was part of the FitHydro project (https://www.fithydro.wiki/index.php/Main_Page). Scope Thema's: Biologie, Biologie > Vis, Visserij > Visstocks/vangsten/merken Kernwoorden: Zoet water, Acoustic telemetry, Acoustic tracking, Acoustic tracking systems, Akoestische Telemetrie, Animal tracking, Downstream migrations, Fish tracking, Freshwater lakes, Hydropower, Marine biotelemetry, Mitigation measures, Passage making, Risk mitigation, Smolts, Tracking data, Vispasseerbaarheid, Norrland, Salmo salar Linnaeus, 1758, Salmonidae Jarocki or Schinz, 1822 Geografische spreiding Norrland [Marine Regions] Spreiding in de tijd
Februari 2019 - Juli 2019 Parameter
Fish detections Methode
Fish detections: Acoustic telemetry Bijdrage door
Vlaamse overheid; Beleidsdomein Omgeving; Instituut voor Natuur- en Bosonderzoek (INBO), meer, data creator
Gerelateerde datasets
Maakt deel uit van: European Tracking Network (ETN) data, meer
URL's
Dataset status: Afgelopen
Metadatarecord aangemaakt: 2022-08-03
Informatie laatst gewijzigd: 2023-05-30
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