Trophic ecology and ecological interactions

Predation, competition and parasitism are the principal interactions, and studies include habitat and diet choice, niche utilization, feeding strategy, food webs and bioenergetics. Dynamic aspects of the interactions are emphasized through long-term studies of the ecological impacts of introductions and invasions of alien species, intensive exploitation and other biomanipulations.

Fish-related studies include Arctic charr, whitefish, brown trout and several other fish species in lake systems, Atlantic salmon parr and sculpins in rivers and anadromous salmonids in fjord systems. The research activities also include invertebrate studies of zooplankton and zoobenthos in lakes and benthos and drift in river systems.