Since at least the 1960s there have been reports of orcas, also known as killer whales, stealing fish, particularly halibut, caught by fishing boats operating in the Bering Sea. Recently, the problem seems to be getting much worse.
The Alaska Dispatch News reports:
Fishermen say they can harvest 20,000 to 30,000 pounds of halibut in a single day, only to harvest next to nothing the next when a pod of killer whales recognizes their boat. The hooks will be stripped clean, longtime Bering Sea longliner Jay Hebert said in a phone interview this week. Sometimes there will be just halibut “lips” still attached to hooks — if anything at all.