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河蟹生活史从亲蟹产卵孵化开始,经蚤状幼体、大眼幼体、幼蟹发育至成蟹止。早期人工育苗为幼体阶段,分蚤状幼体(Z)和大眼幼体(M)两个阶段,正常的蚤状幼体蜕皮5次,每次蜕皮分为一期,分5期,然后转为大眼幼体,但在2004年的河蟹人工育苗过程中,我市部分场家出现了幼体发育阶段性缺
Crab life history from the crab spawning hatch began, fleas larvae, big eyes, larvae, crabs developed to crab only. Early artificial nursery for the larval stage, divided into flea (Z) and large eyed (M) two stages, the normal flea larvae molting 5 times, each molt is divided into a period of 5, and then turned into large Eye larvae, but in 2004 crab artificial breeding process, some of the market in our city there larval development stage