Be cool: A review of hydro-physical changes and fish responses in winter in hydropower-regulated northern streams

• Published in: Environmental Biology of Fishes
• Main Authors: Heggenes, Jan, Alfredsen, Knut, Bustos, Ana Adeva, Huusko, Ari, Stickler, Morten
• Other Authors: Department of Environmentals sciences, University College of Southeast Norway, Department of Hydraulic and Environmental Engineering, Norwegian University of Science and Technology, Environmental and Social Sustainabiliity Department, Statkraft As, Luke / Luonnonvarat / Akvaattisten populaatioiden dynamiikka (4100110910), 4100110910
• Format: Article in Journal/Newspaper
• Language: English
• Published: Springer
• Subjects: rivers; winter; ecology; salmon; trout; regulations; streams; winter ecology; regulation impacts; Midwinter; Atlantic salmon; Salmo salar
• Online Access: http://jukuri.luke.fi/handle/10024/541523

Winter is an ecologically challenging season for ectothermic cold-water fish in natural streams because of reduced flow and freezing. Hydropower regulation in many northern rivers increase winter stream flow and temperatures, and reduce ice formation and surface ice cover. From a background review o...