Herring are forage fish in the wild, mostly belonging to the family Clupeidae, but they are also an important food for humans. Herring often move in large schools around fishing banks and near the coast. The most abundant and commercially important species belong to the genus Clupea, found particularly in shallow, temperate waters of the North Pacific and North Atlantic Oceans, including the Baltic Sea, as well as off the west coast of South America. Three species of Clupea are recognized; the main taxon, the Atlantic herring, accounts for over half the world's commercial capture of herrings.