Water and fish
At SLU, you will find expertise in aquaculture, in the ecology of the aquatic fauna and flora, as well as in fish and water management. The state of the aquatic ecosystems is followed. SLU also investigates how resource use, e.g. fishing, affects the ecosystems. Aquaculture comprises cultivation of all living animals and plants in water, mainly in sea cages or in basins. In Sweden, fish, crayfish and shells are the most commonly grown organisms.
Fish are cultivated for different purposes; either for consuming or for planting out in fishing waters. Some areas of research are suitable fish strains for cultivation and the composition of fish fodder. Environmental and hygiene aspects of water and the role of water in agricultural land and in forests are other research fields.
The chemical and biological quality of water is regularly monitored in many lakes in Sweden. SLU's Environmental Monitoring and Assessment programme Lakes and watercourses helps to provide an overall picture of water status and chemical-physical impact lakes and watercourses. The programme Coastal and sea areas gathers SLU's expertise on marine environments and their assessment.
Future Fish Slaughter: Humane Methods Under Scrutiny
Slaughtered fish on lab table, Aquaculture is increasing production worldwide. Therefore, there is a need to develop humane slaughter methods, both to promote animal welfare and to ensure high
Hang your hat on fish welfare!
All fish kept by humans must be stunned before slaughter. However, how to do this in an ethically defensible manner is unclear. The lack of knowledge when it comes to stunning methods for fish is
Who asks the farmed fish?
Today, more than half of the fish we eat globally are raised in fish farms and the proportion originating from farming continue to increase. Unfortunately, there are some problems associated with
Genetic mapping of Arctic charr – an important step for Swedish aquaculture
The Swedish breeding program for Arctic charr has been run successfully for almost forty years. Historically, breeding has been based on classic selection methods where breeding fish are selected
Mussels and yeast - alternative feed raw materials for arctic char
Domestic feed raw materials that do not compete with our own food production are crucial for sustainably produce feed for farmed fish. Researchers at SLU have shown in a project that it is possible
Ph.D. course
A PhD course in the Krycklan catchment September 19-25, 2024. ‘Watershed Ecology and Biogeochemistry’ addresses the foundational concepts and modern challenges within the broad field of watershed
Yeast in feed can improve immune function in fish
The yeast Yarrowia lipolytica may be of interest as an ingredient in animal feeds due to its favourable nutritional composition and content of immunostimulants. We have investigated how growth, gut
Harvest of reed provides double benefits
Reed is now turned into animal feed with an extra environmental benefit – reed harvest can also reduce eutrophication in our waters, according to researchers at SLU. Several measures, as for example
Fish stunning methods fail!
In two studies, we evaluated existing and alternative stunning methods for farmed fish. We studied rainbow trout and the increasingly common warm-water species, the African catfish (Clarias
What's hidden beneath the surface?
Recent advances in biosensors offer increased opportunities to monitor the well-being of fish in aquaculture. However, before new biosensors are deployed, their suitability and possible applications
Reading list 2024
Thursday, Sept 19. Fundamentals of watershed science Borman and Likens. (1967). Nutrient Cycling. Science. 155 no. 3761 pp. 424-429 Laudon, H. and Sponseller, RA (2018). How landscape organization
Aquaculture opportunities and challenges
Say 'agriculture' and everyone gets an idea of what you're talking about. But say 'aquaculture' and the associations might not be as clear. Aquaculture has great potential to grow, as more than