Essays about: "Ål"

Found 5 essays containing the word Ål.

1. 1. 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

3. 2. Bubble curtains with vertical tubes : A way to deter fish from hydro power intakes

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

   Author : Gustav Molin; [2019]
   Keywords : Bubble curtain hydro power intakes fish salmon eel barrier screen deter; vattenkraft bubbelridå ridå bubblor lax ål fisk;

   Abstract : This project was performed on assigment of Vattenfall R&D in Älvkarleby. The project was a first step in evaluating whether bubble curtains with vertical tubes could be suitable for diverting fish from hydro power intakes into fish passages. READ MORE

4. 3. Reproduktion och odling av ål

   University essay from SLU/Dept. of Animal Nutrition and Management

   Author : Pernilla Norberg; [2010]
   Keywords : Ål; Reproduktion; Odling; Könsmognad;

   Abstract : SammanfattningSyftet med den här litteraturstudien var att ta reda på vad det finns för möjligheter och svårigheter att producera ål i fångenskap. Med nya hållbara metoder att föda upp konsumtionsål skulle utfiskningen av glasålar minska i världen och man skulle kunna fortsätta äta den goda rökta ålen med gott samvete. READ MORE

5. 4. Ålfiskeförbudet : en undersökning av olika aktörer och olika aktörers åsikter på förvaltning, kommunikation och framtiden inom svenskt ålfiske

   University essay from SLU/Dept. of Urban and Rural Development

   Author : Maria Anderson; [2008]
   Keywords : ål; ålfiske; Karlskrona skärgård; förvaltning; kommunikation;

   Abstract : The first of May 2007, a decision from the Swedish Board of Fisheries about a Swedish prohibition of eel fishery got legal force. This prohibition is one of the most challenged decisions that the Swedish Board of Fisheries has taken. In the town Karlskrona in the southeastern part of Sweden the prohibition has got a lot of attention in local media. READ MORE

6. 5. The conodont genus Ctenognathodus in the Silurian of Gotland, Sweden

   University essay from Lunds universitet/Geologiska institutionen

   Author : Caroline Strömberg; [1997]
   Keywords : Conodonta; Prioniodinida; Ctenognathodus; Ligonodina confluens; functional morphology; ontogeny; palaeoecology; phylogeny; Högklint Beds; Tofta Beds; Slite Beds; Klinteberg Beds; Hemse Beds; Hamra Beds; Sundre Beds; Wenlock; Ludlow; Silurian; Gotland; Sweden; Earth and Environmental Sciences;

   Abstract : Seven taxa of the conodont genus Ctenognathodus (Fay, 1959) sensu Viira, 1982b in the Silurian of Gotland have been described and their occurrence mapped geographically, stratigraphically and related to facies. In addition to C. murchisoni (Pander, 1856) three new species were found; C. n. READ MORE