Department of aquatic ecology
The department of aquatic ecology consists of ecologists, statisticians and geneticists with knowledge of both freshwater and coastal areas.
The department is divided into four research groups, in addition to NINA’s genetic laboratory and the research station at Ims, Rogaland.
The department of aquatic ecology is situated in Trondheim. Photo © Anne Olga Syverhuset/NINA.
Research group: Hydropower and climate
Research Director: Ingeborg Palm Helland
NINA has a long research history of projects focusing on ecological effects of hydropower production, both in Norway and abroad. Our projects in reservoirs and regulated rivers include everything from basic research to environmental impact assessments. Through our research, we document effects on benthic invertebrates, fish and freshwater pearl mussel, identify the mechanisms behind these effects and suggest mitigation actions. We also study fish migrations and fish-ways.
Climate changes will modify the conditions, distribution and dynamic of many species. Researchers at the department of aquatic ecology work with understanding how melting of snow and ice and changes in hydrological patterns will affect fish populations, changes in the production and growth patterns of aquatic species, as well as interactions between climate change and area use.
Research group: Aquaculture and coastal ecosystems
Research Director:Tor F. Næsje
Within aquaculture NINA study different environmental effects of farmed salmon, in both freshwater and the sea. Important topics are the challenges related to farmed salmon escapees and hybrids with wild salmon, as well as effects of sea lice on production and wellbeing of wild salmonids. NINA also perform research related to sustainable area use, management of marine species and ecosystems in coastal areas.
Research group: Wild salmonids
Research Director: Kjetil Hindar
NINA represents the continuation of a century of research on anadromous salmonids in Norway. We analyse stock-recruitment relationships to set conservation limits for salmon populations, and study the dynamics of populations in space and time. We apply molecular genetic analyses to investigate the effects of supplementation and escaped farm salmon on wild populations, and maintain a modern genetic laboratory in the NINA house in Trondheim. NINA has a fully equipped aquatic research station at Ims in southwestern Norway where we control fish migrating in the River Imsa (Atlantic salmon, brown trout and European eel) with a two-way fish trap, and where we perform experiments in tanks and artificial streams with salmonid fishes and other species.
Research group: Freshwater ecology
Research Director: Odd Terje Sandlund
NINA’s freshwater ecology research includes, i.e., monitoring of fish and invertebrates in rivers and lakes, ecosystem processes (focusing on fish, zoobenthos and zooplankton), and research related to the implementation of the EU Water Framework Directive in Norway. Exploitation of inland fish, as well as the occurrence and spreading of non-native fish species in Norwegian inland waters, are also important subjects. An important activity is research on the impact of anthropogenic activities on invertebrates and fish (sea trout and resident trout) in streams and small rivers, with a view to identify mitigation and restoration measures.