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,
Latitude of the Gulf Stream and the Gulf Stream north wall index Regier and Stommel model compared with observations over 40 years (The graphs are in standardised units). The latitude of the north wall has been linked via the atmospheric circulation with a variety of changes at the other side of the North Atlantic Ocean [17], [19], [20], and. The Continuous Plankton Recorder Survey, now run by the Sir Alister Hardy Foundation for Ocean Science in Plymouth, UK, has monitored the plankton in the surface waters of the North Sea and NE Atlantic for more than half a century. Over most of this time many of the zooplankton in these regions have