引用本文:

【打印本页】【下载PDF全文】【View/Add Comment】【Download reader】【 Close 】

过刊浏览高级检索

本文已被：浏览 2726次下载 2802次	码上扫一扫！
分享到：微信更多字体:加大+\|默认\|缩小-
*真蛸(Octopus vulgaris)胚胎发育及浮游期幼体生长研究*
郑小东¹, 刘兆胜¹, 赵娜¹, 安文太¹, 杨善军², 林祥志²
1.中国海洋大学水产学院;2.国家海洋局第三海洋研究所

摘要:

通过室内繁养真蛸, 详细观察了真蛸胚胎发育和浮游期幼体生长过程, 描述了各时期外部形态和重要器官的发育特征, 采用扫描电镜观察了浮游期幼体的吸盘生长情况。结果表明, 真蛸成熟卵子长径为(2.4±0.2)mm, 短径为(1.2±0.1)mm。根据 Naef 划分标准, 发育过程分为 20 个时期, 发育期间胚胎经历两次翻转。水温 20.4—23.6℃, 从受精卵到幼体孵化出膜, 经历 25—35d, 初孵幼体全长约为 3.08mm。水温 22.8—25.2℃时, 幼体浮游期约为 28—33d。

关键词: 真蛸, 胚胎发育, 浮游期幼体, 吸盘

DOI：10.11693/hyhz201102025025

分类号:

基金项目:国家高技术研究发展计划(863 计划)资助项目, 2010AA10A404 号; 山东省博士基金资助, 2008BS06008 号

EMBRYONIC DEVELOPMENT AND PARALARVAL GROWTH OF OCTOPUS VULGARIS

ZHENG Xiao-Dong¹, LIU Zhao-Sheng¹, ZHAO Na¹, AN Wen-Tai¹, YANG Shan-Jun², LIN Xiang-Zhi²

1.Fisheries College, Ocean University of China;2.Third Institute of Oceanography, State Oceanic Administration

Abstract:

Octopus vulgaris was reared and bred indoors and its embryonic development and growth of paralarvae were observed. The morphological characteristics of different embryonic stages were described. Sucker growth of paralarvae was illustrated using scanning electronic microscopy. The results showed that mature eggs were (2.4±0.2)mm in length and (1.2±0.1)mm in width. According to Naef (1928), the process of embryonic development was divided into 20 stages, with twice reverses. The development of fertilized eggs required 25—35d before hatching at 20.4—23.6℃. The average length of newly hatched larvae was about 3.08 mm. The paralarval stage kept 28—33d at the hatching temperature of 25.2—22.8℃.

Key words: Octopus vulgaris, Embryonic development, Paralarvae, Sucker

Copyright © Editorial Office for Oceanologia et Limnologia Sinica    Copyright©2008 All Rights Reserved
Supervised by: China Association for Science and Technology   Sponsored by: Chinese Society for Oceanology and Limnology, Institute of Oceanology and Limnology, CAS.
Address: 7 Nanhai Road, Qingdao, China.    Postcode: 266071    Tel: 0532-82898753  E-mail: liuxiujuan@qdio.ac.cn
Technical support: Beijing E-Tiller Co.,Ltd.