| 汪学杰，赖明信，牟希东，宋红梅，杨叶欣，罗渡，顾党恩，罗建仁，胡隐昌.眼斑星丽鱼（Astronotus ocellatus）的生物学与核型初步研究[J].广东农业科学,2012,39(3):126-128 |
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眼斑星丽鱼（Astronotus ocellatus）的生物学与核型初步研究 |
| Preliminary study on boilogy habit and karyotype of Astronotus ocellatus |
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| DOI： |
| 中文关键词: 眼斑星丽鱼 生物学习性 染色体组型 |
| 英文关键词: Astronotus ocellatus biology habit karyotype |
| 基金项目: |
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| 摘要点击次数: 2290 |
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| 中文摘要: |
| 对眼斑星丽鱼（Astronotus ocellatus）的形态特征、生活习性、生长特性、繁殖特性等生物学特性及其核型进行初步研究。结果表明，眼斑星丽鱼对温度适应性广，最低耐受温度为11.4℃；耐盐性试验中，幼鱼组和成鱼组达到盐度32 的死亡率分别为23.7%和15.4%。体长和体重的相关关系为：W=0.0911L2.7233（r=0.9612）；生长速度快，性成熟年龄为1龄，分批产卵，卵粘性；胚胎发育阶段所需积温为1 466.4℃.h；染色体数目为2n=48，核型公式为4m+20sm+18st+6t，NF=78。 |
| 英文摘要: |
| The morphological characteristic, living habit, growth, reproductive and karyotype of Astronotus ocellatus were studied and analyzed. Astronotus ocellatus is carnivores. They were able to adapt to a wide range of temperature,even the lowest was 11.4℃. The saulty experiments showed Astronotus ocellatus lived the sault 32, death rate was 23.7% and 15.4%. The relationship
between body length and weight of Astronotus ocellatus can be expressed by the equation: W=0.0911L2.7233（r=0.9612）. They reached to their first maturity at 1+, and produced spawns many times in one breeding period. The fertilized eggs were demersal and adhesive. The accumulative temperature in embryo period was 1 466.4℃.h. The number of diploid chromosome is 2n=48 and the
karyotype formula is 4m+20sm+18st+6t, NF=78. |
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