This is a very good roundup of what happened to the Pollack fishing last year in the Bering Sea, and what the fishermen and scientists are doing to try and predict this year. Short story: Global warming is appearing to significantly affect the stocks of one of the basic fish we North Pacific fishing crews on edge about what they’ll find this month, after a tough 2020 of small fish and COVID-19eat in large quantities.
Though the weather often is rough, these winter harvests typically offer prime fishing as the pollock come together in the southern Bering Sea before spawning. But the disappointing fishing in the last half of 2020 has put Ganley on edge about what he and his four crew members will find when they drop their nets.
https://www.seattletimes.com/seattle-news/skinny-small-fish-and-covid-19-made-2020-a-difficult-year-for-north-pacific-pollock-fleet/