中华绒螯蟹(Eriocheir sinensis)俗称河蟹、毛蟹,又名大闸蟹,其肉味鲜美,在国内外市场享有盛誉。自七十年代初开始,全国22个省市先后开展人工放流,增殖效果、经济效益均显著。广东省于1973～1975年间从长江口引种南移,经10多年在珠江口繁衍后代,已初步形成资源。近几年,在珠江水系捕获成熟降海的亲蟹,个体普遍比原产地的见小,体型特征也变异,群众称之为“珠江毛蟹”。据初步考察,“珠江毛蟹”乃是中华绒螯蟹在珠江繁衍的后代,并非新 Eriocheir sinensis, commonly known as crab and hairy crabs, also known as crabs, has a delicious meat flavor and enjoys a good reputation in domestic and foreign markets. Since the early 1970s, 22 provinces and cities across the country have carried out artificial discharge, the proliferation effect, economic benefits are significant. From 1973 to 1975, Guangdong Province introduced the southward migration from the mouth of the Yangtze River. After more than 10 years of breeding at the Pearl River Estuary, Guangdong Province has initially formed its own resources. In recent years, the Pearl River system to capture the mature sea-lowering crabs, individuals generally see than the origin of the small, body characteristics also vary, the masses call it “Pearl River crab.” According to the preliminary investigation, “Pearl River Crab” is the offspring of Chinese mitten crab