Red king crab in the U.S. are managed by the National Marine Fisheries Service and the North Pacific Fishery Management Council. In 2009, Alaska’s king crab derby fishery was replaced by a catch share system that incentivizes fishermen to fish more efficiently. Management measures include stock assessments, harvest limits, gear restrictions, and observer coverage. Management strategy implementation varies, though, so some stock data is limited. Seafood Watch called king crab management in Alaska moderate to highly effective.
In Norway, red king crab is effectively managed as a harmful invasive stock. Measures there, which Seafood Watch noted would be troubling if implemented on a native species, include high quotas, harvesting at maximum economic yield, and allow for the removal of females. In Russia, however, management has not been effective. The non-native red king crab stock range has expanded, prompting Seafood Watch to give it an “avoid” rating.