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,
Fish species of the Neretva basin its many tributaries, lakes and marshes provides rich freshwater habitat for its native, as well as for introduced non-native fish species. There are deep canyon as well as wide valley sections with both fast flowing rapids with side-pools, and narrow sections with deep, still waters running slowly. The flowing water can be any combination of fast or slow, deep or shallow, open or protected by canyons, rocks, tree roots and undercut banks, and shaded by vegetation on the bank or exposed to full sunlight. This variation ensures that a relatively large number of fish species are able to find suitable