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双斑东方鱼屯在湛江地区的繁殖期为 2月下旬至 4月中旬 ,盛产期为 3月份。网箱培育的亲本性腺可成熟并可自然产卵。 2 8组亲鱼催产率为 10 0 %。水温 17～ 19 5℃效应时间 38～ 74h ,水温 2 2～ 2 5℃效应时间 2 5～ 5 8h。水温 19 5～ 2 4℃ ,88～ 10 1h出苗 ,水温 2 3 5～ 2 5 5℃ ,81～ 85h出苗。 2 8组受精孵化率10 %～ 96 % ,平均 5 8 8%。 2 3 5～ 2 5 5℃仍为受精孵化的适宜水温。初孵出仔鱼在卵黄囊消失前从孵化桶直接移到土池 ,经 71d培育平均全长达 5 5cm ,体重 4 4 g ,成活率 38 4 %。其主要技术措施是肥水放苗、壮苗下池 ,及时补充和调整饵料
Two-spot Eastern fish shop in Zhanjiang breeding season from late February to mid-April, the rich period of March. Cages nurtured by the parent gonads mature and can naturally spawn. The rate of 2 8 broodstock oxytocin was 100%. Water temperature 17 ~ 19 5 ℃ effect time 38 ~ 74h, water temperature 2 2 ~ 2 5 ℃ effect time 25 ~ 5 8h. Water temperature 19 5 ~ 2 4 ℃, 88 ~ 10 1h emergence, water temperature of 23 5 ~ 25 5 ℃, 81 ~ 85h emergence. The fertilization hatching rate of 8 8 groups was 10% ~ 96% with an average of 588%. 2 3 5 ~ 2 5 5 ℃ is still the appropriate temperature for fertilization hatching. The newly hatched larvae were directly transferred to the soil pool from the incubator before the disappearance of the yolk sac. After 71 days, the average length of the larvae reached 55 cm and the weight was 44 g, with a survival rate of 38.4%. The main technical measures are fertilizer Fangmiao, Zhuangmiao pool, timely replenishment and adjustment of food