Bering Sea and Aleutian Islands Multi-Species Suppliment

• At 3.3 million tons, the 2021 SEBS pollock spawning biomass from the multispecies model is below the long-term (1979-2015) average of 4.7 million tons and represents a -15% change from 2020 and -33% change from 2019 spawning biomass levels. Similarly, the downward trend in total biomass observed in the past few years has continued through 2021, with recent declines placing the total 2021 biomass (10.5 million t) below the 1979-2015 average of 14.7 million tons. However it is important to note that because there was no Alaska Fisheries Science Center summer bottom trawl survey in 2020, estimates of, and differences relative to the 2020 biomass should be interpreted cautiously.