Essays about: "fishway"

Showing result 1 - 5 of 9 essays containing the word fishway.

1. 1. Adaptive Fishway Design : Designing a Bypass Channel to Fit Large Discharge Fluctuations

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Melina Sattelmeier; [2023]
   Keywords : ;

   Abstract : Especially with regard to achieving the goals of the European Water Framework Directive, the construction of fishways is becoming more prominent in Sweden's hydraulic engineering sector. Particularly the importance of nature-like bypass channels is increasing, being the type of fishway that is currently implemented in most cases of small scale hydropower. READ MORE

3. 2. The climate impact of fishways : A life cycle assessment of Blyberg’s and Spjutmo’s up- and downstream fishways

   University essay from Linköpings universitet/Industriell miljöteknik

   Author : Ellen Lundin; Lovisa Liljenberg; [2023]
   Keywords : LCA; life cycle analysis; life cycle assessment; fishways; fish; fish migration; climate impact; technical fishways; co2 equivalents; co2 eq; hydro power; HPP; Sweden; construction; concrete; reinforcement steel;

   Abstract : The Swedish national plan for reapproval of hydropower describes that hydropower plants (HPPs) are required to be reassessed to ensure that modern environmental conditions are set for the permits. Since dams and HPPs create barriers for migrating fish and consequently disfavor biological diversity, one consequence of the national plan is that fishways are being constructed. READ MORE

4. 3. Hydraulic modelling at Finsjö Övre hydropower plant : Study for evaluation of a fishway's attractiveness

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Eddie Blomström; [2022]
   Keywords : fishway; flow; hydraulics; HEC-RAS;

   Abstract : In connection with the government’s approval on the proposed national plan (NAP) in 2019, it has become highly topical to find solutions problems regarding fish migration in Swedish watercourses. At Finsjö Övre hydropower plant in Emån, a new type of fishway is planned to be installed and evaluated starting at the end of 2022. READ MORE

5. 4. Manning’s roughness coefficient in small scale nature-like fish passages

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Aleksander Jaworowski; [2022]
   Keywords : Manning’s coefficient; flow measurement; fish passage; fish migration; roughness coefficient; Technology and Engineering;

   Abstract : Fishway construction remains a crucial measure in environmental adaption of flow barriers. A well-functioning fishway should be able to pass all naturally occurring species of fish and other aquatic fauna. READ MORE

6. 5. Study of a vertical slot fish ladder : Evaluation of flow dynamics through a standardized bypass and the effect of predesigned roughness elements

   University essay from Högskolan i Gävle/Avdelningen för byggnadsteknik, energisystem och miljövetenskap

   Author : Iñigo Revilla; Laia Pons; [2020]
   Keywords : Vertical slot fishway; roughness element; pattern; slope; velocity; turbulence; Fluent;

   Abstract : Migrating freshwater fish population has been significantly declined, mostly by the obstruction of their migratory routes by hydropower dams. To diminish such impacts, fish ladders have been developed to facilitate the passage of migrating fish. READ MORE