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近20多年来，养殖河蟹是我国沿海、沿江农民发家致富的重要途径。目前的年产量已超过10万吨，年产值达120亿-150亿元。一、从河蟹自然资源的捕捞到人工增殖、养殖自从人们懂得吃食河蟹，即产生河蟹的捕捞业（或是狩猎期），从古至今已有上干年的历史。清朝孙之绿所著的《蟹录》
In the past two decades or so, farming crabs is an important way for our peasants to get rich and get rich along the coasts of our country. The current annual output has exceeded 100,000 tons, with an annual output value of 12 billion -1.5 billion yuan. First, from the crabs of natural resources to the artificial breeding of fish breeding since people know how to eat crabs, that produce crab fishing (or hunting), since ancient times has been on the dry years of history. Qing Sun Green’s “crab recorded”