中国水产科学Issue(4)：597-607,11.DOI:10.3724/SP.J.1118.2015.150012
叶尔羌高原鳅胚胎发育与胚后发育观察
Embryonic and post-embryonic development of Triplophysa (Hedinichthys) yarkandensis (Day)
摘要
Abstract
This study determined the embryonic and post-embryonic development of the fish [Triplophysa (Hedinich-thys) yarkandensis (Day)]. The morphological and ecological traits in each development phase were described in detail using a microscope fitted with a digital camera. The fertilized eggs of Triplophysa (Hedinichthys) yarkandensis (Day) are viscous and ovoid, with a diameter of (0.60±0.052) mm ( x ±SE). Embryonic development lasted 65 h and 34 min when incubated at a water temperature of (20.0±1.0)℃ and was categorized into seven physiological stages. Post-embryonic development was divided into a larval, a juvenile, and a growth stage based on morphological variation in the yolk sac, gas bladder, scales, body color, and barbels. Newly-hatched larvae reached an average length of (2.0±0.65) mm ( x ±SE). At a water temperature of (20±1)℃, the yolk sac was completely absorbed 7 days after fertili-zation. After 16 d’s maintained temperature, the gas bladder drum at the rear edge of the gill cover had grown to a visi-ble size, the body color had deepened, and the red pigment of the heart was discernible, indicating that Triplophysa (Hedinichthys) yarkandensis had moved from the larval to the juvenile life stage. During the juvenile stage, individuals reached an average length of (8.0±0.45) mm ( x ±SE). Juveniles developed sequentially, growing scales, completing development of the peritoneum, and metamorphosing into young fish at 30 d. Young fish reached an average length of (13.0±0.55) mm ( x ±SE). The yolk-sac relationship the day after hatching was: LY=0.0286D2−0.0636D+3.1196 (R2=0.9050); LY=−1.315LT+5.368 (R2=0.8199); LT=−0.0263D2+0.5113D+1.6169 (R2=0.9890). This study advances knowledge of the early stages of seed breeding of Triplophysa (Hedinichthys) yarkandensis.关键词
叶尔羌高原鳅/胚胎发育/胚后发育Key words
Triplophysa (Hedinichthys) yarkandensis (Day)/embryonic development/post-embryonic development分类
农业科技引用本文复制引用
陈生熬,宋勇,牛玉娟,刘洁雅,谢从新,任道全,范镇明..叶尔羌高原鳅胚胎发育与胚后发育观察[J].中国水产科学,2015,(4):597-607,11.基金项目
国家自然科学基金项目(31360635) （31360635）
国家科技基础性工作专项(2012FY112700-8) （2012FY112700-8）
新疆生产建设兵团基本科技计划项目(2013BA005) （2013BA005）
新疆生产建设兵团一师科技局项目(2012YY01) （2012YY01）
新疆生产建设兵团塔里木畜牧科技重点实验室项目(201505) （201505）
