Essays about: "wild salmon"

Showing result 1 - 5 of 20 essays containing the words wild salmon.

  1. 1. STARTING FROM THE BOTTOM: USING LOW TROPHIC SPECIES IN SALMON FEEDS. Assessing the environmental performance of novel salmon feeds with LCA .

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Moritz Hempel; [2022-08-30]
    Keywords : LCA; Salmon aquaculture; novel feeds; seaweed; blue mussel;

    Abstract : Over the past 30 years, the formulation of salmon feeds has shifted from being based on marine ingredients like fishmeal and fish oil towards more plant-based ingredients. This shift was caused by limited supply of wild fish and general sustainability concerns related to using forage fish for feed, so they were mainly replaced with vegetable-protein. READ MORE

  3. 2. Perceptions on marine salmonfarming development inBíldudalur, Iceland

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Katrín Helga Skúladottír; [2022]
    Keywords : Marine salmon farming; aquaculture; socio-economic effects; environmental effects; development;

    Abstract : Marine salmon farming is a new and fast-growing industry in Iceland after decades of uncertainties within aquaculture development in the country. While growing at a tremendous speed in the last few years, the development has been challenged by different social groups in regard to its socio-economic and environmental effects. READ MORE

  4. 3. Fatty acid composition in salmonid eggs : a comparative study of Atlantic salmon and brown trout

    University essay from SLU/Department of Molecular Sciences

    Author : Linnéa Appert; [2022]
    Keywords : Salmonid eggs; Lipids; Fatty acids; Atlantic salmon; brown trout; DHA; EPA; AA;

    Abstract : Atlantic salmon (AS) and brown trout (BT) are part of the salmonid family and are some of the most popular fish species in Western culture. Due to their popularity, there is incentive to understand the varying factors which ensures species survival. READ MORE

  5. 4. To create multifunctional riverscapes : the example of Älvkarleby in the Nedre Dalälven River, Sweden

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

    Author : Xuan Ye; [2022]
    Keywords : river space; municipal nature reserve; ecological restoration; landscape planning; fish migration passage; human recreation;

    Abstract : The natural environment and ecological services of rivers and the needs and expansion of human activities using rivers causes conflicting interests. Human survival is inseparable from the dependence on the natural environment, but at the same time, the continuous demand for natural resources has also caused an irreversible impact. READ MORE

  6. 5. Putting behavioral assays on fish to the test: Are sociality and scototaxis trials relevant in the wild?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Arno Veenstra; [2020]
    Keywords : Acoustic telemetry; Social network; Sociality; Scototaxis; Migration;

    Abstract : Animal behavior has become a frequently used tool in modern ecology and ecotoxicology, where laboratory behavioral traits are recognized as sensitive endpoints for assessing natural behavior or non-lethal effects of pollutants on animals. Within these research fields, behavioral traits measured in laboratory environments have been used to formulate predictions of ecological consequences that accompany specific behavior. READ MORE