This document represents the NOAA Fisheries opinion on the effects of these actions on the bearded seal Beringia DPS, ringed seal Arctic DPS and proposed critical habitat, Steller sea lion and designated critical habitat, seven ESA-listed whale species (bowhead, North Pacific right, fin, humpback Western North Pacific and Mexico DPS, Western North Pacific gray, blue, and sei whales), and North Pacific right whales designated critical habitat.