Essays about: "salmonids"

Showing result 1 - 5 of 27 essays containing the word salmonids.

  1. 1. Evaluation of River Restoration Measures: Interstitial Habitat Variables and Salmon Hatching Rates as Indicators of Success

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Limnologi

    Author : Jonas Emanuelsson; [2023]
    Keywords : ;

    Abstract : River ecosystems are some of the most complex ecosystems on Earth, characterized by a highly heterogenous environment which is able to sustain a disproportionally high level of biodiversity in relation to the area of which they occupy. However, anthropogenic activities are encroaching on the highly diverse riverine landscape, threatening freshwater biodiversity. READ MORE

  3. 2. Potential migration routes for the alien species, pink salmon (Oncorhynchus gorbuscha) : investigating access in west and south coast rivers of Sweden

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Rebecca Martin; [2023]
    Keywords : invasive; alien species; salmonid; anadromous; migration barriers;

    Abstract : Invasive alien species are one of the main drivers of ecosystem change globally, presenting challenges to biodiversity that take many forms Pink salmon, Oncorhynchus gorbuscha, has recently been observed on the Swedish west coast where its presence is the result of secondary spreading from populations introduced to the White and Barents Seas in northwestern Russia. In Sweden, O. READ MORE

  4. 3. Diet of Arctic char and brown trout in Northern Sweden : potential effects of burbot and lake area

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Sebastian Dagman; [2023]
    Keywords : arctic char; brown trout; diet; stomach content; salmonids; burbot;

    Abstract : To manage and conserve different fish species, it is important to know what factors affect the presence and performance of the species. Relatively few studies have focused on burbot and how they interact with other species. READ MORE

  5. 4. Predict sex in salmonids using motion-triggered cameras and artificial intelligence

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Albin Bidner; [2023]
    Keywords : census method; salmon; trout; al; camera technology;

    Abstract : As the EU water directive starts to be implemented in Swedish law a new national plan of negotiating new environmental permits for every hydropower plant. This process will most likely result in the building of many new fish passages and ladders around the dams to allow fish and other aquatic life to pass them. READ MORE

  6. 5. Evaluation of restoration efforts in Dalälven - conditions for survival rate of Salmo trutta and Salmo salar

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Ville Svärd; [2023]
    Keywords : Restoration; river; salmonids; benthic fauna;

    Abstract : Rivers are among the most anthropogenically affected ecosystems in the world by irrigation, transportation, channelizing, and hydropower. Habitat restorations have become a popular method to restore the heterogeneity and complexity of rivers aiming for improvement of biodiversity. READ MORE