摘要
以人工授精所获得的中国鲎胚胎及其幼体为实验材料 ,研究了授精后的静置时间、温度、盐度、重金属等对中国鲎胚胎和三叶幼体发育的影响。结果表明 ,在试验范围内 ,授精后静置时间 1min即可 ,不必长达 1h ;中国鲎胚胎发育的最适温度为 2 8℃ ,最适盐度 2 0 ;中国鲎三叶幼体发育的最适温度为 30℃ ,最适盐度 30～ 35 ;4种重金属离子对中国鲎胚胎发育的毒性效应表现为Pb2 + >Zn2 + >Cu2 + ≈Cd2 + ;中国鲎三叶幼体比胚胎更容易受重金属污染而影响其正常生长发育。
The influences of temperature, salinity, heavy metal ions and the standstill time after artificial insemination were analyzed on the development of embryo and larvae in Tachypleus tridentatues. The results show that: ①ten minutes of standstill after insemination is enough for the normal development of embryo; ② the optimum temperature and salinity for the development of embryo were 28℃ and 20, respectively, and for the trilobite larvae were 30℃ and 30～35; ③ the toxic effects of the 4 metal ions on the embryo were as follows: Pb 2+ >Zn 2+ >Cu 2+ ≈Cd 2+ ; ④ the larvae were more sensitive to the pollution of metal ions than the embryo, thereby their development was more easily affected.
出处
《中国水产科学》
CAS
CSCD
北大核心
2001年第3期10-14,共5页
Journal of Fishery Sciences of China
基金
国家自然科学基金资助项目 ( 39670 14 7)
关键词
中国鲎
胚胎发育
三叶幼体
环境因子
发育
毒性
Tachypleus tridentatus
embryo development
trilobite larvae
environmental factor
