中华绒螯蟹通称河蟹,是名贵的水产品,在国内外市场深受消费者欢迎。天然河蟹苗历来的主要产地是长江口,由于资源受到破坏,蟹苗产量下降,成蟹生产不稳定。近年来虽然开展人工繁殖,产量有所增加,但仍供不应求。近两年,在广西发现了有开发价值的新的河蟹资源,这对增加生产、扩大出口颇有意义。广西北部湾一带地处北回归线以南,属亚热带季 Eriocheir sinensis, commonly known as crab, is a valuable aquatic products, welcomed by consumers in domestic and foreign markets. The natural crab has always been the main origin of the Yangtze River estuary, due to the destruction of resources, crab seedling production decline, crab production instability. In recent years, though artificial breeding has been carried out, the output has increased, but it is still in short supply. In the past two years, a new crab resource with development value was found in Guangxi, which made sense for increasing production and expanding exports. Guangxi Beibu Gulf area is located south of the Tropic of Cancer, a subtropical season