摘要
为建立美洲黑石斑(Centropristis Striata)人工繁殖技术,研究美洲黑石斑的亲鱼培育、人工繁殖、胚胎发育与苗种培育生产试验。结果表明:亲鱼培育成活率82.6%,产卵7批次,产卵1500×104粒,受精卵呈球形,卵径0.90～1.20mm,平均0.98mm;有一个直径0.13～0.19mm的油球,受精率76.50%,孵出仔鱼860×104尾,孵化率74.94%,此外,美洲黑石斑胚胎发育可划分为受精卵、卵裂、囊胚、原肠胚、神经胚、器官形成6个阶段,共21个时期。水温18～26℃,盐度28～31,pH7.8～8.2的海水中受精卵经26～40h即可孵化出膜。仔鱼经室内水泥池2个月的强化培育,体长可达4.5cm以上,出苗率9.31%。
In order to develop the artificial propagation techniques of Centropristis Striata,the broodstocks rearing,artificial breeding,embryonic development and fry cultivating of Centropristis Striata were studied in this paper.The results showed that the broodstock survival rate was 82.6%,the productions were 7 batches of eggs and 15 million eggs which the diameter of fertilized eggs was 0.90 ～ 1.20 mm（mean 0.98 mm） and fertilization rate of oil globule was 76.50% which the diameter was 0.13～0.19 mm.After hatching,there were 8.6 million larval which the hatched rate was 74.94%.Based on the external morphological features,six periods including 21 stages of Centropristis Striata embryo were established,such as cleavage period,blastula period,gastrula period,neural period,organogenesis period and hatching period.The time for embryonic development of Centropristis Striata was 26～40 h in the sea water with temperature 18～26℃,salinity 28～31.0 and pH 7.8～8.2.The weight length of juvenile was 4.5cm in indoor concrete ponds by 2 months of intensive training,and the germination rate was 9.31%.
出处
《福建水产》
2012年第1期54-60,共7页
Journal of Fujian Fisheries
基金
福建省海洋与渔业局重点项目(闽海渔合同[2007]023号)
关键词
美洲黑石斑
亲鱼培育
人工繁殖
胚胎发育
苗种培育
Centropristis Striata
broodstocks rearing
artificial breeding
embryonic development
fry cultivating
