Blar i Brage IMR på forfatter "Haraldstad, Tormod"
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Anthropogenic and natural size-related selection act in concert during brown trout (Salmo trutta) smolt river descent
Haraldstad, Tormod; Höglund, Erik; Kroglund, Frode; Olsen, Esben Moland; Hawley, Kate Louise; Haugen, Thrond Oddvar (Peer reviewed; Journal article, 2020)By hindering migration and inducing direct turbine mortality during downstream migration, hydropower is regarded as one of the most serious threats to anadromous salmonids. Yet, little attention has been paid to long-term ... -
Digital Data Help Explain Drivers of Angler Satisfaction: An Example from Southern Norway
Johansen, Kurt; Olsen, Esben Moland; Haraldstad, Tormod; Arlinghaus, Robert; Höglund, Erik (Peer reviewed; Journal article, 2022)We analyzed trip-level self-reports collected by a cell phone app to understand angler satisfaction of fishing for sea trout Salmo trutta (anadromous Brown Trout) in southern Norway. We found no clear support for a positive ... -
Digital Data Help Explain Drivers of Angler Satisfaction: An Example from Southern Norway
Johansen, Kurt; Olsen, Esben Moland; Haraldstad, Tormod; Arlinghaus, Robert; Höglund, Erik (Peer reviewed; Journal article, 2022)We analyzed trip-level self-reports collected by a cell phone app to understand angler satisfaction of fishing for sea trout Salmo trutta (anadromous Brown Trout) in southern Norway. We found no clear support for a positive ... -
Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts
Haraldstad, Tormod; Forseth, Torbjørn; Olsen, Esben M.; Haugen, Thrond O.; Höglund, Erik (Peer reviewed; Journal article, 2022)The precise homing of Atlantic salmon to their natal river and spawning grounds is the foundation for locally adapted genetically differentiated populations across rivers or across river sections. A sequential imprinting ... -
Hydropower-induced selection of behavioural traits in Atlantic salmon (Salmo salar)
Haraldstad, Tormod; Haugen, Thrond Oddvar; Olsen, Esben M.; Forseth, Torbjørn; Höglund, Erik (Peer reviewed; Journal article, 2021)Renewable energy projects such as hydropower facilities contribute towards meeting the world`s growing energy demands and urgent need for mitigating climate change. However, such infrastructure has the potential to ... -
Impacts of salmon lice on mortality, marine migration distance and premature return in sea trout
Serra Llinares, Rosa Maria; Bøhn, Thomas; Karlsen, Ørjan; Nilsen, Rune; Freitas, Carla; Albretsen, Jon; Haraldstad, Tormod; Thorstad, Eva Bonsak; Elvik, Kristine Marit Schrøder; Bjørn, Pål Arne (Peer reviewed; Journal article, 2020)Brown trout Salmo trutta (L.) is a facultative anadromous species, where a portion of individuals in populations with access to the sea perform migrations to use the richer feeding resources. We investigated the effect of ... -
Migratory passage structures at hydropower plants as potential physiological and behavioural selective agents
Haraldstad, Tormod; Haugen, Thrond Oddvar; Kroglund, Frode; Olsen, Esben Moland; Höglund, Erik (Journal article; Peer reviewed, 2019)Anthropogenic activities affect fish populations worldwide. River dams have profound impacts on ecosystems by changing habitats and hindering migration. In an effort to counteract such effects, a range of mitigation measures ... -
Predicting the nationwide outmigration timing of Atlantic salmon (Salmo salar) smolts along 12 degrees of latitude in Norway
Vollset, Knut; Lennox, Robert J.; Lamberg, Anders; Skaala, Øystein; Sandvik, Anne Dagrun; Sægrov, Harald; Kvingedal, Eli; Kristensen, Torstein; Jensen, Arne Johan; Haraldstad, Tormod; Barlaup, Bjørn Torgeir; Ugedal, Ola (Peer reviewed; Journal article, 2021) -
Redningsaksjon for Vossolaksen 2010-2020 -status per 2021
Hanssen, Erlend Mjelde; Kambestad, Marius; Normann, Eirik; Espedal, Espen Olsen; Wiers, Tore; Skoglund, Helge; Karlsson, Sten; Wacker, Sebastian; Diserud, Ola Håvard; Gabrielsen, Sven-Erik; Skår, Bjørnar; Vollset, Knut; Haraldstad, Tormod; Stöger, Elisabeth; Helle, Turid Myklebust; Landro, Yngve; Pulg, Ulrich; Lennox, Robert; Nilsen, Cecilie Iden; Postler, Christoph; Lehmann, Gunnar Bekke; Åtland, Åse; Stenberg, Sondre Kvalsvik; Velle, Gaute; Isaksen, Trond Einar; Mahlum, Shad Kenneth; Furnes, Håkon; Borge, Asbjørn; Borge, Arvid; Sandal, Inge; Stranzl, Sebastian Franz; Hoelting, Kristin; Henden, Geir Ove; Lo, Håvard; Bjøru, Bjørn (LFI - Laboratorium for ferskvannsøkologi og innlandsfiske, Research report, 2022)