CAJ | 학술논문

通过人工授精获得受精卵,利用显微镜进行连续观察,并用数码相机拍照记录,对安氏高原鳅胚胎及仔鱼的发育特征进行了详细描述,并确定了到达各发育期所需的时间.成熟卵直径为0.87～1.05 mm,受精卵卵膜径为1.24～1.41 mm,微粘性.水温16.3～18.1 ℃,受精卵历时119 h 44 min孵出,所需积温为2083.4 ℃·h.受精卵发育的理论起始温度为4 ℃,发育所需的理论有效积温为1610.4 ℃·h.胚胎发育过程可划分为6个阶段,35个发育期.初孵仔鱼平均全长约为4.58 mm,仔鱼期历时28 d.
통과인공수정획득수정란,이용현미경진행련속관찰,병용수마상궤박조기록,대안씨고원추배태급자어적발육특정진행료상세묘술,병학정료도체각발육기소수적시간.성숙란직경위0.87～1.05 mm,수정란란막경위1.24～1.41 mm,미점성.수온16.3～18.1 ℃,수정란력시119 h 44 min부출,소수적온위2083.4 ℃·h.수정란발육적이론기시온도위4 ℃,발육소수적이론유효적온위1610.4 ℃·h.배태발육과정가화분위6개계단,35개발육기.초부자어평균전장약위4.58 mm,자어기력시28 d.
The embryonic and larval development was observed in Triplophysa angeli, and the morphological features and time of the development phases were described in detail under a microscope by digital camera. The fertilized adhesive eggs had a diameter of 0.87～1.05 mm and expanded to 1.24～1.41 mm upon absorption of water. The larvae hatched 119 h 44 min after fertilization at water temperature from 16.3 to 18.1 ℃, with the cumulative temperature of 2083.4 ℃·h. The biological zero degree for the fertilized eggs was found to be 4 ℃ with the effective cumulative development temperature of 1610.4 ℃·h. The embryonic development can be divided into 6 periods and subdivided into 35 developing stages. The longest period was observed in the organogenesis among the embryonic development. The newly hatched larvae had total body length of 4.58 mm, and the development of the larvae lasted nearly 28 days.