分别于 1997年 3～ 4月和 1998年 4～ 5月在浙江舟山、鄞县两地河蟹土池育苗中进行了一种阶段性养水给饵技术的试验。主要技术措施包括孵幼前的施肥养水、幼体培育中丰年虫无节幼体的间断性停喂和后期外源性天然饵料的利用。结果表明，该技术不仅可以减少饵料及亲蟹成本，而且可明显提高一期蚤幼的变态率，稳定土池育苗的产量。 In March to April 1997 and April to May 1998, respectively, in Zhejiang Zhoushan, Yinxian two crab soil pond nursery in a stage of water feeding bait technology experiments. The main technical measures include fertilization and watering before hatching, intermittent feeding of nauplii nauplii in larval culture and the utilization of exogenous natural food during the later period. The results showed that this technique could not only reduce the cost of bait and crab, but also significantly improve the rate of metamorphosis and the yield of nursery ponds.