在对虾育苗生产中,即将出池放养的仔虾,由于育苗池和中间暂养池或养成池盐度往往不一致,常会影响仔虾的生长发育和成活率。天然仔虾生活在浅海、河口、内湾,对低盐度的适应能力较强。但是,人工培育的仔虾特别是一厘米以下的仔虾,对盐度的适应性以及其后的生长状况如何?却很少有详细报导。近几年来,据不少养殖单位反映:仔虾入池时,因盐度的突变而造成大批死亡,或影响其生长,造成很大损失。因此,有必要了解盐度突变影响对虾仔虾的成活率及生长率的情况,以便为防止仔虾死亡,采取相应措施提供依据。 In shrimp nursery production, the forthcoming stocking larvae, as the nursery ponds and intermediate holding ponds or ponds salinity often inconsistent, often affect the larval growth and survival rate. Natural larvae live in shallow water, estuaries, inland bay, adaptability to low salinity. However, larvae cultivated by hand, especially larvae below one centimeter, are not reported in detail in terms of salinity adaptation and subsequent growth. In recent years, according to many breeding units, when larvae shovel into the pond, a large number of deaths are caused by sudden changes in salinity or their growth is affected, resulting in great losses. Therefore, it is necessary to understand the salinity mutation affect shrimp larvae survival rate and growth rate in order to prevent larval death, take appropriate measures to provide the basis.