Kamchatka crab or Alaskan king crab, is a species of king crab native to the Bering Sea and Gulf of Alaska. Live king crab red king crab is the largest species of king crab. The red king crab is native to the Bering Sea, North Pacific Ocean, around the Kamchatka Peninsula and neighboring Alaskan waters. The red king crab is the most coveted of the commercially sold king crab species, and it is the most expensive per unit weight.