Welcome to the

Freshwater ecology group

Our research covers a wide range of topics and taxa, although our main focus is on the population ecology of salmonid fish and planktonic crustaceans (Daphnia).

Using these species as model organisms we address questions regarding processes that shape population dynamics, such as evolutionary changes in phenotypic traits, energetics, cannibalism and competition, and the role of spatial structuring of habitats.

In addition to providing insights into general ecological issues, we also emphasize our role in providing knowledge relevant for management and conservation. Freshwater habitats are increasingly challenged by human activity, and knowledge-based management strategies are required to reduce impacts on ecosystem services and biodiversity.

To ensure such relevance we maintain a close collaboration with more applied institutions both in Norway (NINA, Sintef, NTNU University Museum) and abroad (Marine Scotland Science Freshwater Laboratory, USDA Forest Service). This collaboration includes both participation in research projects, research seminars, and supervision of master and PhD students.

Core members
Prof. Ole Kristian Berg
Prof. Sigurd Einum


Dapnia Magna.The use of Daphnia magna as an experimental animal for such purposes is advantageous in many respects. Photo