Southwest College of Life Science Institute senior laboratory technician Pu Deyong told reporters yesterday: the Yangtze River have not seen for ten years the national first grade protected wild animal paddlefish figure. Paddlefish functionally extinct, at present in the endangered situation.
Pu Deyong introduces, paddlefish functional extinction is mainly due to overfishing and the deterioration of ecological environment and other reasons. Pu Deyong called for, during the closed fishing seasons each year from February 1st to April 30th, is an important breeding period of the Yangtze River, Jialing River in the main economic fish, fishing people don't in this period.
It is understood, paddlefish semi anadromous fish. Perched on the Yangtze River in the downstream, also can be in the estuarine brackish waters of survival, I enter river large lakes, large individuals perches in the river deep water channel, be good at swimming, swimming in the Yangtze River the river often vast aquifer; juveniles were often tributaries, harbor, or brackish water area of Yangtze River foraging. |
