J4 ›› 2012, Vol. 11 ›› Issue (4): 50-52.

• 生命科学 • 上一篇    下一篇

红瘰疣螈繁殖习性初步研究

2007年5月至2010年8月,采用野外调查与室内饲养相结合的方法,对生活于云南省苍山洱海国家级自然保护区内的红瘰疣螈的繁殖习性作了初步观察。结果表明,在大理地区繁殖期一般为5月上旬至8月上旬,窝卵数为96.43±6.14枚,孵化期20~23 d,人工孵化率80.5~92%;自然孵化率72.2~80.9%;对不同日龄幼螈的形态变化特征进行了系统描述,外鳃萎缩期死亡率较高。   

  1. 大理学院农学与生物科学学院,云南大理 671003
  • 收稿日期:2011-04-28 修回日期:2011-07-06 出版日期:2012-04-15 发布日期:2012-04-15
  • 作者简介:杨国辉,高级实验师,主要从事动物学研究.
  • 基金资助:

    大理学院应用开发研究基金资助项目(KYYY201002)

Study on Breeding Habits of Tylototriton shanjing

From May 2007 to August 2010, the breeding habits of Tylototriton shanjing in Cangshan National Nature Reserve of Yunnan Province were observed. According to the observation and experiments both in the laboratory and in the field, the breeding features were primarily studied. It showed that the breeding period lasted from early May to early August. A female laid 96.43±6.14 eggs and hatching period averaged 20-23 days, with mean hatchability of 80.5-92%, with nature hatchability of 72.2-80.9%. We also described the morphological changes characteristic of juvenile.   

  1. College of Agriculture and Biology Science, Dali University, Dali, Yunnan 671003,China
  • Received:2011-04-28 Revised:2011-07-06 Online:2012-04-15 Published:2012-04-15

摘要:

2007年5月至2010年8月,采用野外调查与室内饲养相结合的方法,对生活于云南省苍山洱海国家级自然保护区内的红瘰疣螈的繁殖习性作了初步观察。结果表明,在大理地区繁殖期一般为5月上旬至8月上旬,窝卵数为96.43±6.14枚,孵化期20~23 d,人工孵化率80.5~92%;自然孵化率72.2~80.9%;对不同日龄幼螈的形态变化特征进行了系统描述,外鳃萎缩期死亡率较高。

关键词: 红瘰疣螈, 繁殖, 孵化率, 第二性征

Abstract:

From May 2007 to August 2010, the breeding habits of Tylototriton shanjing in Cangshan National Nature Reserve of Yunnan Province were observed. According to the observation and experiments both in the laboratory and in the field, the breeding features were primarily studied. It showed that the breeding period lasted from early May to early August. A female laid 96.43±6.14 eggs and hatching period averaged 20-23 days, with mean hatchability of 80.5-92%, with nature hatchability of 72.2-80.9%. We also described the morphological changes characteristic of juvenile.

Key words: Tylototriton shanjing, reproduction, hatching, secondary sexual characteristics

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