SLU Aqua's three age laboratories specialize in age and growth analyzes of fish from Sweden's seas, coasts, lakes and watercourses. Every year, our experts analyze more than 50,000 fish from about 20 different species. The results from our biological analyzes and age determinations are used to assess the status of fish stocks, and constitute important decision bases for both national and international fish management.
Age analysis of fish can provide detailed information about fish stocks and how fish react with, for example, changes in the environment or fishing pressure.
Fish age is estimated with the help of the otoliths (ear stones), gill caps, scales and other skeletal parts or hard tissues, which get annual rings in the same way as trees. In addition to the age of the fish, by studying these tissues you can also measure growth of the fish at a given age. Read more about age analysis of fish >>
Quality-assured data for fish management
We perform age analyzes for research purposes and as part of international and national fish and environmental monitoring on behalf of the Swedish Maritime Administration, county administrative boards, municipalities, fishing associations, fisheries conservation areas, etc.
We perform age determinations and analyzes on assignment. Contact our age laboratories for information and pricing! (Contact information can be found at the bottom of the page)
Information on the age and growth of fish is required, among other things, to gauge the status of a fish stock, make stock analyzes and assess what fishing pressure a stock can handle. Our age analyzes are used, among other things, for stock estimates and advice given by the International Council for the Exploration of the Sea, ICES, which serve as a basis for decisions on the EU's common fisheries policy.
Our age laboratories work continuously with quality assurance and method development and our experts regularly participate in international workshops and exchange programs. Read more about our quality assurance and development of age analysis on fish>>