Black cod fishermen in the Bering Sea have reported an increase in orcas taking their catch off their fishing lines in recent years. Orca depredation isn’t just a costly headache for fishermen — it can be dangerous for orcas, too.
The problem is so bad that Morrow has decided to skip fishing for black cod this year. He said it’s not worth the hassle. Morrow and his crew have to be careful to protect their catch. For instance, they have someone whose only job is to look out for killer whales with binoculars in the wheelhouse. Once an orca is spotted, the crew immediately cuts and anchors the line, leaving the area as quickly as possible.
Asia Beder, a biologist with the Alaska Department of Fish and Game in Dutch Harbor, has seen the behavior herself and said stories of orca depredation in the Bering Sea have increased in the last few years. Beder said it’s challenging to manage the amount of black cod in the fishery when fishermen can’t accurately count how many they’ve caught, knowing that the orcas are also a factor. So, in the state survey, she said fishermen have a box to check if they saw orcas around while fishing.
“They’re looking for calories that aren’t difficult to get,” Teerlink said, “using as little energy as possible to get as much energy, calorie gain as possible.”
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