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1998年至 2 0 0 1年就文蛤亲贝育肥促熟、诱导产卵、孵化、幼虫和稚贝培育、稚贝生态习性等开展研究。研究发现 ,养殖文蛤可以通过室内控温强化培育促熟 ,比自然海区提早近 2个月 ;通过阴干 -充气的催产方法 ,能使亲贝集中大批排放精卵。在水温 2 6～ 32℃ ,pH7.8～ 8.5 ,盐度 15～ 30的条件下 ,幼虫生长及变态最快。试验结果表明 :采用无附着基质的方法进行采苗及稚贝培育是可行的 ;文蛤稚贝对干露、海水盐度、温度、pH、氨氮等具有较强的耐受性 ,适应范围 :海水盐度 9.6 - 32 ,水温 4- 34℃ ,pH7.0 - 8.5 ,在pH =7.9时 ,能忍受 10mg/L的总氨氮浓度。 1999年至 2 0 0 1年 ,共育出 1.0 2～ 1.75mm(壳长 )的文蛤稚贝 2 .2亿颗 ,单位面积出苗 2 8.0 1～ 44 .6 0万颗 /m2 ,达到产业化的要求。
From 1998 to 2001, the research on the fattening and ripening of Clam shellfish, the induction of spawning, hatching, the larval and juvenile breeding and the ecological habits of juvenile were conducted. The study found that cultured clams can be enhanced by indoor temperature control to promote ripening, nearly 2 months earlier than the natural sea area; by dry-inflatable oxytocin method, the progeny can focus on large-scale discharge of fertilized eggs. Under the condition of water temperature 26 ~ 32 ℃, pH7.8 ~ 8.5 and salinity 15 ~ 30, larvae grew and metamorphosed fastest. The results showed that it is feasible to adopt seedless and juvenile to cultivate seedlings and juveniles without using matrix. The juvenile clams have strong tolerance to dry dew, seawater salinity, temperature, pH, ammonia nitrogen and so on. The adaptation range is seawater Salinity 9.6 - 32, water temperature 4-34 ℃, pH7.0 - 8.5, pH = 7.9, can tolerate a total ammonia concentration of 10mg / L. From 1999 to 2001, a total of 222 million juvenile clams were raised from 1.02 to 1.75 mm (shell length) with 2 8.01 to 44.60 million seeds / m2 per unit area, achieving industrialization Request.