长江渔业是我国淡水渔业的摇篮,多种鱼类资源的宝库,也是发展我国淡水养殖生产的重要原种基地。但是,当前长江中下游渔业资源已处于严重衰退的状态,特别是长江鲥鱼和中华绒整蟹以及白暨豚、中华鲟、白鲟等珍贵种类更濒临绝迹的危险。为贯彻 The Yangtze River fishery is the cradle of freshwater fishery in China and the treasure house of many kinds of fish resources. It is also an important base for the development of freshwater aquaculture production in China. However, at present, the fishery resources in the middle and lower reaches of the Yangtze River have been in a state of serious decline. In particular, the rare species such as the Chinese crab and the Chinese crab, the white dolphin, the Chinese sturgeon and the white sturgeon are even more at risk of extinction. For the implementation