• holt-2021-crab-fig1 Snow crab in the Barents Sea – a new prey for Northeast Arctic cod

    The snow crab ( Chionoecetes opilio) is a newly established species in the Barents Sea, increasing in both distribution and abundance in recent years. In this Arcto-Boreal sea, they encountered the most abundant Atlantic cod ( Gadus morhua) stock. What happens from here?

  • durant_2020_-haddock_fig1 Cod-Haddock 2-1 in Barents Sea

    In the Boreal-Arctic seas, the two most abundant gadoid fish are the Atlantic cod ( Gadus morhua) and the haddock ( Melanogrammus aeglefinus). Both tend to respond to climate warming by an abundance increase and a change of distribution. Are these changes affecting how they are interacting? Statistical analysis using a state-space threshold model of acoustic and trawl survey data on cod and haddock abundance indicates that the interaction is changing with sea temperature: the cod negatively affecting the haddock when sea temperature is over 4 °C.

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Upcoming public events

Sep. 2, 2021 Add to calendar

Open lectures by C. Jessica E. Metcalf and John-Arne Røttingen. The topics are the ecology and evolution of SARS-CoV-2, and translating science to policy – the case of pandemic preparedness and response.

Feb. 11, 2022 Add to calendar

Open lectures. Darwin Day is an international recognition of science and humanity, held in memory of Charles Darwin (1809-1882).