Clupea Clupea Clupea is genus of planktivorous bony fish belonging to the family Clupeidae, commonly known as herrings. They are found in the shallow, temperate waters of the North Pacific and the North Atlantic oceans, including the Baltic Sea. Three species of "Clupea" are recognized. The main taxa, the Atlantic herring ("Clupea harengus") and the Pacific herring ("Clupea pallasii") may each be divided into subspecies. Herrings are forage fish moving in vast schools, coming in spring to the shores of Europe and America, where they form important commercial fisheries. The species of "Clupea" belong to the larger family Clupeidae (herrings, shads,
History of the North Sea the merchants and trade, also became increasingly prominent. Important overseas colonies, a vast merchant marine, and a powerful navy made the Dutch the main rivals of growing England, which saw its future in these three spheres. This conflict was at the root of the first three Anglo-Dutch Wars between 1652 and 1673. Scotland emerged as a prominent economic power during the Scottish Enlightenment of the 18th century. Between 1700 and 1815, the North Sea saw only 45 years of peace, and could be regarded as the most dangerous eras to sail the sea. Tensions in the North Sea were again