October 23, 2020 — Lightweight collapsible pots prevent whales from pirating pricey black cod from longline hooks and give a break to small boats.
“Getting whaled” is so pervasive that fishery managers allowed black cod, aka sablefish, fishermen to switch from baited lines to rigid pots in the Bering Sea in 2008 and in the Gulf of Alaska starting in 2017. (Interestingly, killer whales rob the hooks in the Bering Sea, while sperm whales are the culprits in the Gulf.)
“The whale predation has just been so horrible,” said Frank Miles of Kodiak, owner of 58-foot and 78-foot fishing boats. “The last couple years I tried to do it with hooks, and it just got to the point to where we left tens of thousands of pounds of black cod unharvested because we were going backwards feeding the whales. You can spread your strings 10 miles apart, and you might get one or two skates up and they find you. And then they pretty much strip you blind.”
Analyses from federal surveys in 2013 showed that when killer whales were present during annual sablefish stock surveys, the whales removed 54% to 72% from the hooks.