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Demersal fish

HI 026473


Photo: Øystein Paulsen

The Demersal Fish Research Group (Bunnfisk in Norwegian) studies demersal (bottom dwelling) fish in all our marine areas, with the objective of maintaining and developing the IMR’s principal fields of competence for these fish.

This competence includes the collection of biological data, including length, weight and maturation; data on stock sizes, distribution and migration based on acoustic methods and bottom-trawling; assessment of stock condition; single- and multi-species modelling of stock development; and the provision of management advice.

The Demersal Fish Research Group comprises of 14 scientists and 10 technicians, and has two people assigned as 20% positions “forskningssjef-II” (from University of Bergen and Oslo). One member of the group is based in Oslo, while the remainder are at Nordnes in Bergen.

The daily work is mainly organised into three groupings of co-workers, but there are clear overlap between the tasks:

  1. stock assessment for the Barents Sea,
  2. stock assessment of the North Sea and
  3. obtaining age and other information from of “ear stones” (otoliths). Our newly built otolith lab is available for use by other research groups as well.

The group is also heavily involved in international collaboration through ICES, the EU, and elsewhere.

The stocks on which this group has particular competence are the following:

The group supplies its research and technical expertise regarding demersal fish to the following research and advice giving programs:

  • The Barents Sea and Arctic Ocean
  • The North Sea
  • Coastal Ecosystems
  • Marine processes and human impacts