论文部分内容阅读
暗纹东方鱼屯俗称河豚，属江海洄游性鱼类。生殖季节，雌、雄个体副性征差异不明显，不能采用常规鉴别方法进行性别鉴定。作者根据体征、体态特征，采用综合指标判别法对１９９５年３月１５日至５月３０日在江苏仪征—泰州６０ｋｍ江段渔获的１０３８尾暗纹东方鱼屯进行了雌、雄性别判定，正确率达９５．４％。该方法操作简单，不伤鱼体，仅凭眼观即可判定自由游动状河鱼屯的雌、雄。文中有关利用行为差异来判定鱼类雌、雄的方法，国内外尚未见诸报道。该项工作为鉴别鱼类性别提供了一种新方法，在鱼类人工繁殖和规模化生产中具有一定应用价值
Obsidian Oriental fish Tuen commonly known as puffer fish, is a migratory fish Jianghai. Reproductive season, female and male individuals were not significant differences in secondary sexual characteristics, can not be used for routine identification of gender identification. Based on the signs and body characteristics, the authors used the discriminant method of comprehensive index to determine the male and female of 1038 obscurus fish caught in the 60km section of Yizheng-Taizhou from March 15, 1995 to May 30, 1995, The correct rate of 95.4%. The method is simple, does not hurt the fish, eye alone can determine the free swimming river fish Tuen female, male. The article uses the behavior difference to determine the fish female, male method, at home and abroad have not seen reports. This work provides a new method for the discrimination of fish sex, which has certain application value in artificial breeding and large-scale fish production