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1999年 5月 ,将体长为 0 6 5cm的中国对虾 (Penaeuschinensis)仔虾分别放养在盐度为 2 2‰和 16‰的 2种半咸地下水 (简称地下水 )和盐度为 32‰的海水中 3d后 ,仔虾成活率出现显著差异 ;而放养在加盐调配成盐度为 2 6‰的地下水和盐度为 32‰的海水中 3d后 ,成活率无显著差异 .体长为 1 1cm的中国对虾仔虾在盐度分别为 32‰的海水、 16‰的未经处理的地下水、 16‰的氧化处理的地下水、 2 6‰加NaCl调节的地下水和 2 6‰的加卤水调节的地下水中养殖 4 ,8,12d后 ,成活率差异不显著 .试验证明 ,体长为 0 6 5cm的中国对虾仔虾对低盐度 (16‰～ 2 2‰ )地下水的适应能力较差 ,不能直接放养于池塘 ;体长 1 1cm的中国对虾仔虾可直接在盐度 16‰以上的地下水中放养 .
In May 1999, Penaeus chinensis larvae with a body length of 0 65cm were stocked in two kinds of semi-salty groundwater (groundwater) with salinity of 2 2 ‰ and 16 ‰, respectively, and seawater with a salinity of 32 ‰ There was a significant difference in the survival rate of larvae after 3d, while no significant differences were found in the survival rate of larvae after stocking in seawater with salinity of 26% and salinity of 32% Of shrimp and prawn in the salinity of 32 ‰ of seawater, 16 ‰ of untreated groundwater, 16 ‰ of the oxidation of groundwater, 26 ‰ plus NaCl-adjusted groundwater and 26 ‰ of brine-adjusted groundwater After 4, 8 and 12 days of culture, there was no significant difference in survival rate.The experiments showed that the adaptability of larvae with body length of 0 6 5 cm to low salinity (16 ‰ -2 2 ‰) groundwater was poor and could not be directly Stocking in ponds; Chinese shrimp larvae with a body length of 11 cm can be directly stocked in groundwater above the salinity of 16 ‰.