Negotiators for Norway and Russia failed to reach an agreement for managing key shared Atlantic fish stocks this week, forcing the talks to move beyond their expected Friday conclusion.

The Joint Russian-Norwegian Fisheries Commission, which meets annually to negotiate quotas on Barents Sea cod, capelin, haddock and other species, was initially slated to complete its work this week.

Mette Wikborg, a lead negotiator and advisor to Norway's Ministry of Trade and Fisheries, told IntraFish sister publication Fiskeribladet the negotiations could not be concluded "for practical reasons."