红瘰疣螈繁殖习性初步研究

Study on Breeding Habits of Tylototriton shanjing

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。

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.