The River Itchen is a river in Hampshire, England. It flows from mid-Hampshire to join with Southampton Water below the Itchen Bridge in the city of Southampton. The river has a total length of 28 miles (45 km), and is noted as one of England's - if not one of the World's - premier chalk streams for fly fishing, especially using dry fly or nymphing techniques. It is designated as a Site of Special Scientific Interest and is noted for its high quality habitats, supporting a range of protected species including the threatened water vole, otter, brook lamprey and white-clawed crayfish. (Source: Wikipedia)

Freshwater Ecoregion of the World : #404 Central & Western Europe
Major Habitat Type: temperate floodplain and wetlands