《中国水产》河蟹性腺发育成熟后，在适宜的条件下（盐度７‰～３５‰、温度６℃～１４℃）即可交配产卵。在正常条件下河蟹交配后数小时至数日即能排卵，同时受精并将受精卵粘附于腹部刚毛上，成为“抱卵蟹”。受精卵从产出开始就进入了胚胎发育阶段，直至幼体出膜，整个过程 After the development of gonadal development of “Chinese aquatic” crabs and crabs, spawning can be done under suitable conditions (salinity 7 ‰ ~ 35 ‰, temperature 6 ℃ ~ 14 ℃). Under normal conditions, crabs can mate several hours to several days after ovulation, fertilize and attach fertilized eggs to abdomen bristles to become “crab-eating crabs.” Fertilized eggs from the beginning of the output into the embryonic development until the larvae out of the membrane, the entire process