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 significant Cold War confrontation began in the Baltic. Its economic importance grew in the 1960s as surrounding countries began to exploit oil and gas resources. The largest environmental catastrophe in the North Sea was the destruction of the offshore oil platform Piper Alpha in 1988 in which 167 people lost their lives. Although de facto control of the North Sea played a decisive role in the political power relationships in north-west Europe since the time of the Vikings, and became a question of world politics after the First Anglo-Dutch War, until after the Second World War the bordering countries officially