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本文报道了从1988年3月—1989年6月对海湾扇贝大面积、高密度人工育苗的试验。在亲贝升温促熟时采用6.5—15℃、15—18℃、18—21.5℃三个升温阶段,上述三个阶段升温幅度依次为每日0.5—1℃、1—1.5℃、1.5—2℃,每次升温达高限后,稳定培育2天,23—28天左右成熟产卵。幼体培育密度8—17个/毫升;前后期饵料分别以球等鞭金藻和塔胞藻为主;适量换水;为保持幼体生活环境的稳定,在幼虫各变态期不增加或减少换水量、充气量、投饵量;整个培育过程连续充气;土霉素和青霉素混合使用。1988年和1989年平均每立方米水体分别育出壳高500—800微米的稚贝205万粒和528万粒;壳高0.5厘米的商品苗35万粒和79万粒。
This article reports from March 1988 to June 1989 a large area, high density artificial breeding bay scallops experiments. During the warm-up and pro-ripening, the three temperature-rising stages of 6.5-15 ℃, 15-18 ℃ and 18-21.5 ℃ were used. The warming rates of the three stages were 0.5-1 ℃, 1-1.5 ℃, 1.5-2 ℃, after each temperature up to the high limit, stable breeding 2 days, 23-28 days or so mature spawn. Larval culture density of 8-17 / ml; before and after the bait were respectively Isocrack Spirae alba and Thalassarium-based; appropriate water change; in order to maintain the living environment of larvae stable, larval metamorphosis does not increase or decrease the amount of water change , Inflation, feeding amount; continuous aeration throughout the cultivation process; oxytetracycline and penicillin mixed use. In 1988 and 1989, an average of 2.05 million and 5.28 million juveniles were shelled 500-800 micrometres per cubic meter of water respectively; and 350,000 and 7.9 million were commercial seedlings of 0.5 centimeter tall.