河蟹是我国著名的水产品之一,由于具有特殊风味而驰誉中外。我省胜芳土产的紫蟹,尤为其中珍品。我省白洋淀、胜芳一带原曾盛产河蟹,后因下游修建水闸未留鱼道,破坏了其生殖回游路线,致使绝种。为了恢复河蟹资源,省水产研究所和沧州地区水产研究所及安 Crab is one of the famous aquatic products in our country. Due to its special flavor, it is best known both at home and abroad. Our province Shengfang native purple crab, especially among the treasures. The Baiyangdian and Shengfang areas in our province, which used to be rich in crabs, were later abandoned due to the lack of fishways in the downstream sluices, which destroyed their reproductive route and led to extinction. In order to restore crab resources, the provincial Fisheries Research Institute and Cangzhou Fisheries Research Institute and Ann