| 红尾副鳅生物学初步研究 |
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| 引用本文： | 周中艳,严太明,马恒东.红尾副鳅生物学初步研究[J].四川农业大学学报,2007,25(3):352-356. |
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| 作者姓名： | 周中艳 严太明 马恒东 |
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| 作者单位： | 1. 安顺学院
2. 四川农业大学,动物科技学院,四川,雅安,625014 |
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| 基金项目： | 衷心感谢何艺、张辽、何智、曹晓涵同学对本试验的帮助. |
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| 摘 要： | 通过对雅安市青衣江段红尾副鳅的可量性状、年龄组成、繁殖特性等生物学进行初步研究。红尾副鳅的体长范围为6.98~15.41 cm,体重范围为2.10~21.00 g;体重与体长呈显著的幂函数关系:W=0.0184L2.5112,r=0.933。年龄可分为5个龄组,以3龄和4龄个体占绝大多数。红尾副鳅雄鱼的体长范围为6.95~15.41 cm,雌鱼体长范围为6.98~13.68 cm,体重范围为2.10~17.30 g,平均绝对怀卵量为340粒/尾。产卵前期Ⅲ期和Ⅳ期卵巢卵粒半径平均值分别为0.686和1.052 mm。
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| 关 键 词： | 红尾副鳅 生物学 可量性状 繁殖特性 |
| 文章编号： | 1000-2650（2007）03-0352-05 |
| 修稿时间： | 2007-04-13 |
The Preliminary Study on the Biology of Paracobitis variegates |
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| ZHOU Zhong-yan,YAN Tai-ming,MA Heng-dong.The Preliminary Study on the Biology of Paracobitis variegates[J].Journal of Sichuan Agricultural University,2007,25(3):352-356. |
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| Authors: | ZHOU Zhong-yan YAN Tai-ming MA Heng-dong |
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| Institution: | College of Animal Science and Technology, Sichuan Agricultural University, Yaan 625014, Sichuan, China |
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| Abstract: | This paper reports the countable characters,age and reproduction of Paracobitis variegates in Qingyi river.The length and weight range respectively from 6.98 cm to 15.41 cm and from 2.10 g to 21.00 g. Relationship between individuals are weight and length is: W=0.0184L2.5112,r=0.933.There are 5 age classes,and most in the age of 3 years and 4 years.The length of male fishes range from 6.95 cm to 15.41 cm,correspondingly the length and weight of female ones range respectively from 6.89 cm to 13.68 cm and from 2.10 g to 17.30 g.The mean value of fecundity is 340 per one.At egg diameter of Ⅲ and Ⅳ phase,the radiuses of ovarian ovum are 0.686 mm and 1.052 mm,respectively. |
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| Keywords: | Paracobitis variegates biology countable characters reproduction characteristics |
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