宽鳍鱲胚胎发育研究  

The Embryonic Development of Zacco platypus

作　　者：石叶忠 朱双全 潘月 申屠琰 冯彬彬 程鑫 张克鑫 朱卫东 夏荣兴 张玉明 竺俊全[2] SHI Ye-zhong;ZHU Shuang-quan;PAN Yue(Xinchang Aquatic Technique Popularizing,Xinchang 312500;Key Laboratory of Applied Marine Biotechnology,Ministry of Education,Ningbo University,Ningbo 315211,China)

机构地区：[1]新昌县养殖业技术推广中心,浙江新昌312500 [2]宁波大学教育部应用海洋生物技术重点实验室,浙江宁波3152113 [3]余姚市水产技术推广中心,浙江余姚315400 [4]新昌荣欣水产养殖专业合作社,浙江新昌312500

出　　处：《浙江海洋大学学报（自然科学版）》2022年第4期308-314,共7页Journal of Zhejiang Ocean University：Natural Science

基　　金：宁波市科技计划项目(202002N3047,2019C10057);浙江省科技计划(2020C02014,2016C32062)。

摘　　要：为了解宽鳍鱲胚胎发育特征,在人工培育条件下对其胚胎发育过程进行观察,结果表明,宽鳍鱲成熟卵平均直径为(1.71±0.06)mm,受精卵平均直径为(2.11±0.11)mm,胚胎发育过程历经胚盘形成、卵裂、囊胚、原肠胚、神经胚、器官形成及孵出等7个阶段28个时期。不同水温条件下,胚胎发育所需时间及有效积温存在一定差异,在24~25℃条件下,胚胎发育历时44.5 h,所需有效积温为1079.13℃·h;在25~26℃条件下,胚胎发育历时41 h,所需有效积温为1046.47℃·h;在26~27℃条件下,胚胎发育历时39 h,所需有效积温为1039.36℃·h,宽鳍鱲胚胎发育所需时间随水温升高逐渐下降,孵化率呈先上升后下降的趋势。In order to understand the embryonic developmental characteristics of Zacco platypus,the embryonic development process of Z.platypus was observed under artificial cultivation.The results showed that the average diameter of mature eggs were(1.71±0.06)mm,and the average diameter of fertilized eggs were(2.11±0.11)mm.The process of embryonic development undergoes the following 7 stages:blastoderm,cleavage,blastula,gastrula,neurula,organogenesis and hatching,which could be devided into 28 periods.Under different water temperatures,the time required for embryonic development and effective accumulated temperature were different.At 24-25℃,the embryonic development lasted 44.5 h,and the required effective accumulated temperature was 1079.13℃·h;at 25-26℃,the embryonic development lasted 41 h,and the required effec tive accumulated temperature was 1046.47℃·h;at 26-27℃,the embryonic development lasted for 39 h,and the required effective accumulated temperature was 1039.36℃·h.

关 键 词：宽鳍鱲 胚胎发育 发育特征 

分 类 号：S917.4[农业科学—水产科学]