Clupea pallasii Valenciennes, 1847 .

Pacific Herring. To 46 cm (18 in) TL (Miller and Lea 1972). Korea and Japan to Arctic Ocean off Alaska to northern Baja California; Arctic Canada as far east as Queen Maud Gulf (Coad in Coad and Reist 2018). Scattered populations in Norwegian Barents Sea and Russian White and Pechora Seas (Whitehead 1985, Jørstad et al. 1994, Jørstad 2004, Laakkonen et al. 2015). This species hybridizes with Clupea harengus Linnaeus, 1758 in northern Europe (Laakkonen et al. 2015). Marine, brackish waters and, very occasionally, fresh waters (Moyle 2002); depth: surface to 250 m (820 ft) (Whitehead 1985). There are a number of deeper capture records (e.g., 723 m, 2,371 ft, Bradburn et al. 2011; 1,033 m, 3,388 ft, 1,068 m, 3,503 ft, NWFSC-FRAM) all recorded from bottom trawl catches. In these circumstances it is not possible to ascertain if these fish were caught on the bottom or in midwaters during net deployment or recovery. Almost always captured above 150 m (492 ft) (Whitehead 1985).