1. Towards a new sustainable fishing adventure
Towards a new sustainable fishing adventure? – the snow crab in the Barents Sea Carsten Hvingel, Institute of Marine Research Norway Credit to: Jan Sundet, Ann Merete Hjelset, Cecilie Hansen and Trude Thangstad
Not going to answer
Raise this important question

2. New species in the Barents Sea Ecosystem
The Snow crab
The questions:
-Resource?
-Pest?
-Management?

3. Resource?
Stock is increasing
Fishery starts

4. …and continues to spread
Resource?
2021?
First recording in 1996

5. The prognosis: Resource? Catch/yr Billion NOK/yr
Catch potential fully developed fishery (1000t)

6. Unknown ecosystem impact
Pest?
Unknown ecosystem impact
Creation of ecosystem «imbalance»
New parasites, deceases
Displacement of other species
Trophic interactions
What will happen to
the existing fisheries?
The big question

7. Modelled effects + ÷ Plankton: Bunndyr: 7-27%
Pest?
Modelled effects +
Plankton:
Bunndyr: %
Torsk, hyse, lodde: % ÷

8. Resource management Adequate? Assumptions:
Optimally managed exploitation
…and no «surprises»
Predicted

9. Adequate?
Resource management
Predicted
Gold rush trap
Actual

10. Status: The short version…
Known:
Large economic potential
Risk:
Ecosystem response on
Other species
The snow crab himself
The gold rush trap
Action
Exploitation control (management plan)
Research related to resource dynamics

11. Thanks for your attention!

12. The distribution of the fishery
Bonus material