Welcome to the Institute of Freshwater Research

Last changed: 27 August 2019

The Institute of Freshwater Research conducts environmental analysis, advice and research on Sweden's lakes and watercourses.

Our main focus is resource estimations, fisheries management and conservation of fish and its relation to the environment. We run projects dealing with the stocks in the four largest lakes of Sweden, salmon, sea trout, eel and crayfish, endangered species and eutrophic lakes and problems related to acidification and liming.

The Institute of Freshwater Research is responsible for the test-fishing data generated in national and regional environmental programs, on behalf of the Swedish Agency for Marine and Water Management.

Research facilities:

The Institute of Freshwater Research regularly conducts standardized test-fishing, and we also sample catches from professional fishermen. The results can be used for environmental assessment and as a basis for sustainable fisheries management. Photo: Teresa Soler
Sustainable management of fish and seafood populations requires good decision making. The Institute of Freshwater Research has expert competence on migrating fish species such as salmon and eel, freshwater fish such as pike-perch and whitefish and freshwater crayfish. Photo: Anders Asp
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In streams, data collection is conducted with electrofishing and the information is stored in the database SERS. The database contains data from 61,000 electrofishing sessions, from 18,500 locations. Photo: Lars Ohlson
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Ageing of fish can provide detailed knowledge of fish stocks and show how fish react when the environment changes. Otoliths (ear stones) are used to determine the age of most species. Here, an otolith from eel, chemically colored with flourescens. Photo: SLU Aqua
The biological archive is the heart of our data collection at the Institute of Freshwater Research. The archive contains samples from more than 1 million fish. Most samples are from the beginning of the 20th century onwards, but we also have samples from several thousand years B.C. Here, King Carl XVI Gustaf visiting SLU Aqua and the facilities at Drottningholm. Photo: Viktor Wrange

Contact the Institute of Freshwater Research

Our headquartered is located in Drottningholm in Stockholm and we have a local office in Örebro.


Stångholmsvägen 2
178 93 Drottningholm
Phone: +46(0)18 67 10 00 Map


Pappersbruksallén 22
702 15 Örebro
Phone: +46(0)18 67 10 00

History of the Institute of Freshwater Research

It all started in 1932. The center for research of freshwater fish in Sweden was built near the Royal Palace of Drottningholm. Today the Institute of Freshwater Research is part of the Department of Aquatic Resources at the Swedish University of Agricultural Sciences.
Read more about the history of the Institute of Freshwater Research >>


Sara Bergek, Head of division
Department of Aquatic Resources/Division of diadromous species/Institute of Freshwater Research, SLU
sara.bergek@slu.se, +46 10-478 41 14

Page editor: sofia.bureborn@slu.se