摘要
以白甲鱼为母本，瓣结鱼为父本进行人工杂交，在１１０～１６８℃自然水温条件下静水孵化，历时７１小时３０分孵化出膜．在１３８～２３２℃水温条件下，出膜３０ｄ后完成稚鱼发育，进入幼鱼发育阶段．经测定结果显示，受精率８７％，胚胎畸形率６７％，孵化率３３％，出膜仔鱼畸形率２０％．杂交种鱼既具有父本性状，又具有母本部分性状，证实绝非单性生殖．鱼巴亚科这两种不同属间鱼杂交表现出亲和性．
nder the water temperature of 11.0～16.8℃, it took 71 hours and 30 minutes to be hatched for the fertilized egg. Under the water temperature of 13.8～23.0℃, the jueveniles had all external features resembling the adult fish at 30 days post hatching, suggesting that young fish stage begins. According to the calculation, the fertility rate was about 87%. About 33% of the hybrid eggs produced larvae. About 67% of the embryos and 20% of the larvae were abnormal. The characters of the embryonic and postembryonic development of the hybrid were described in detail.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第4期449-453,共5页
Journal of Southwest China Normal University(Natural Science Edition)
基金
三峡工程环境保护补偿经费科研类资助
长江鱼类早期资源调查方法及鱼苗种类鉴定研究课题基金
关键词
杂交种
鱼类
属间杂交
胚胎发育
自甲鱼
瓣结鱼
hybrid
development of embryo
development of postembryo
Varicorhinus simus
Tor brevifilis brevifilis
