農業部-水產試驗所全球資訊網農業部-水產試驗所全球資訊網

本試驗之目的在研究櫻桃寶石簾蛤之人工繁養殖技術和不同鹽度對稚貝成長率之影 響。選擇成熟種貝，陰乾4小時後，置入3.5噸玻離纖維水槽中產精卵，今年度共人 工繁殖8次，共成功7次，每批次所得受精卵介於1200-3200萬粒。不同鹽度對稚貝成 長之影響：取平均殼長16.00±0.93mm 總重1.225±0.229g 之櫻桃寶石蛤進行15、 20、25、30、35 psu不同鹽度對其幼貝成長之影響，試驗結果，其殼增加率介於 6.51%-25.29%之間，殼長方面以20、25及30 psu三組顯著高於其餘各組，其次為35 psu 組，最差為15 psu組顯著低於各組；其重量增加率介於28.79%-92.79%之間，以 25 psu顯著高於其餘各組，其次為20psu及30 psu，最差為15psu組顯著低於各組 ，活存率介於88.88%-100.00%之間，以20psu 組100%最佳，最差為35psu組88.88%。

This study is to understand the processes of artificial propagation ofMercenaria mercenariaand the effect of different salinity on the growth rate and survival rate of juveniles. Propagation process was to select mature broodstock and to cool dry for four hours, then put into 3.5 tons of glass fiber water tank for artificial breeding. Artificial propagation of this year were nine times, seven times were success, fertilized eggs per batch were between 1200 to 3200 ten thousand. Effect of different salinity 15,20,25,30,35 psu on the growth of juvenile: the initial average shell length 16.00 ± 0.93mm and total weight of 1.225± 0.229g ofMercenaria mercenariawere used for growth performance. In shell length growth, the length growth rate were between 6.51% to 25.29% .The 20psu ,25psu,30psu groups were significantly higher than the other groups, followed by 35 psu , the worst was the 15 psu group significantly lower than the other groups. In weight growth , the weight increase rate were between 28.79% to 92.79%. The 25 psu group was significantly higher than the other groups, followed by 20psu and 30 psu groups , the worst was the 15 psu group significantly lower than the other groups. The survival rate were between 88.88% to 100.00%, 100% is best in the 20psu group, and the worst is 88.88% in the 35psu group.