RV Platessa the central basin. The RV "Platessa" (LT205) was in service with Ministry of Agriculture, Fisheries and Food (United Kingdom) from April 1946 until June 1967, during which time she participated in more than 473 separate research campaigns. She was primarily confined to the southern North Sea, but with occasional forays into the Irish Sea and English Channel, especially in the 1960s. The RV "Platessa" (LT205) was overwhelmingly dedicated to research on North Sea herring and North Sea Plaice. This work included the tagging of more than 12,000 plaice during the 1950s, 7000 during the 1960s. In addition, large numbers of
Ide (fish) of other cyprinids, but the larger adult fish form smaller single species groups which patrol what are believed to be regular routes. The ide prefers clear, warmer water and is not as tolerant of eutrophication as some related species. Ide spawn in running water and this means that the obstruction of rivers by dams and other man-made objects can negatively affect this fish. As an ornamental fish the ide is usually referred to as the orfe and the main variety kept is the golden orfe, which is golden or orange in colour with some black spots on its neck, near