Essays about: "nedströmsvandring"
Found 3 essays containing the word nedströmsvandring.
-
1. Evaluating an increased spill regime as a management tool to improve downstream passage of salmon smolt
University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)Abstract : The anadromous Atlantic salmon (Salmo salar) is dependent on river connectivity to reach spawning and rearing habitats in rivers. Most rivers are today fragmented by artificial barriers such as hydroelectric powerplants (HEP) which impede this migratory movement. READ MORE
-
2. Smoltification status of Atlantic salmon (Salmo salar) in relation to migratory success and migration speed in a regulated river
University essay from Karlstads universitetAbstract : There is a concern that the ecosystems around the world are suffering from fragmentation. Ecosystems such as rivers have lost their connectivity to a large extent due to hydroelectric dams with no or insufficient passways for the natural flow of organisms, matter and energy. READ MORE
-
3. Effectiveness of a fish-guiding device for downstream migrating smolts of Atlantic salmon (Salmo salar L.) in the River Piteälven,northern Sweden
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Hydropower poses a major threat to both upstream and downstream migrating Atlantic salmon (Salmo salar L.). To ensure a relatively safe route for migrating fish, fish ways and different guidance structures are constructed to help fish to bypass the turbine intakes to power stations. READ MORE