Common grilled fish include mackerel, hairtail, croaker and Pacific herring. Fishery characteristics of Richardson Bay include a Pacific herring fishery and oyster beds. Pacific herring prefer spawning locations in sheltered bays and estuaries. Arctic cod, Arctic char, Pacific herring and Arctic flounder are all found in this area. For example, it provides a sheltered spawning ground for the Pacific herring ("Clupea pallasii"). Gwamegi is a Korean half-dried Pacific herring or Pacific saury made during winter. Pacific herring are currently harvested commercially for bait and for roe. Pacific herring also use Portage Inlet and the Gorge Waterway for spawning. Pacific herring have a bluish-green back and silver-white sides and bellies; they are otherwise unmarked.