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Position: Home > Articles > The Preliminary Study on the Biology of Paracobitis variegates Journal of Sichuan Agricultural University 2007,25 (3) 118-122

红尾副鳅生物学初步研究

作  者:
周中艳;严太明;马恒东
单  位:
四川农业大学动物科技学院
关键词:
红尾副鳅;生物学;可量性状;繁殖特性
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。
译  名:
The Preliminary Study on the Biology of Paracobitis variegates
作  者:
ZHOU Zhong-yan,YAN Tai-ming,MA Heng-dong(College of Animal Science and Technology,Sichuan Agricultural University,Yaan 625014,Sichuan,China)
关键词:
Paracobitis variegates;biology;countable characters;reproduction characteristics
摘  要:
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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