Essays about: "Öring"

Showing result 1 - 5 of 29 essays containing the word Öring.

1. 1. Effects of summer peaks on brown trout and Atlantic salmon growth and survival in hydropower-regulated Gullspång River

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Oscar Hallberg; [2023]
   Keywords : hydropeaking; hydropower; fish; salmon; salmo salar; salmo trutta; summer; survival; growth; parr; fry; korttidsreglering; vattenkraft; salmonid; salmo salar; salmo trutta; tillväxt; överlevnad; lax; öring;

   Abstract : Daily demands for electrical power are met through sub-daily release of turbined water in the form of hydropeaking. Hydropeaking’s changes to stream flow are listed as a threat to biodiversity in river ecosystems as it causes rapid habitat alteration such as increased depth and velocity, affecting the species living downstream. READ MORE

3. 2. Optimal Discharge from a Hydropower Plant for Fish Reproduction: An Aquatic Habitat Model

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Hugo Lindbäck; [2023]
   Keywords : Weighted Usable Area WUA ; minimitappning; HEC-RAS; salmo; Helge å; den nationella planen för omprövning av vattenkraft NAP ; Technology and Engineering;

   Abstract : Hydropower is the dominant source of electricity in Sweden, constituting 45% of the national supply. While pivotal for decarbonization and climate goals, its environmental impact on freshwater biodiversity is concerning. READ MORE

4. 3. Fish Friendly Turbines forDownstream Migration : Literature review and case studies

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Signe Rosenblad; [2023]
   Keywords : Downstream passage solutions; downstream migration of fish; small-scale hydropower; eel; trout; Nedströms passagelösningar; nedströms vandring av fisk; småskalig vattenkraft; ål; öring;

   Abstract : As the energy consumption is constantly increasing, the demand of renewable energy is increasing too. Thirtythree percent of the renewable energy production in Europe constitutes of hydropower. Hydropower is animportant energy source as it has stabilizing and storing functions, but it heavily affects biodiversity. READ MORE

5. 4. Stress vid bedövning av öring (Salmo trutta)

   University essay from SLU/Dept. Of Aquatic Resources

   Author : Ella Andersson; [2023]
   Keywords : fisk; stress; bedövning; kortisol; öring;

   Abstract : Vattenbruk är i Sverige en allt växande marknad med stor potential, både för att bevara sårbara fiskpopulationer och för att producera hållbara animaliska livsmedel. I takt med att fler fiskar odlas för forskning, konsumtion och utsättning ökar behovet av bra och etisk djurhållning. READ MORE

6. 5. Microplastics in food webs- occurrence in Lake Vänern brown trout (Salmo trutta) and its main prey

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Hanna Nordström; [2023]
   Keywords : microplastic; freshwater; fish; brown trout; mikroplast; sötvatten; fisk; öring;

   Abstract : Over the past decade, research on microplastic pollution has gained significant attention. Research regarding microplastic occurrence in freshwater fish, however is still scarce. While possible pathways have been investigated, passive transfer via ingestion of prey, and possible bioaccumulation in different organs remains relatively unstudied. READ MORE