北江黄尾鲴个体生殖力的研究  

STUDY ON THE INDIVIDUAL FECUNDITY OF XENOCYPRIS DAVIDI BLEEKER IN THE BEIJIANG RIVER

作　　者：蓝昭军[1] 李强[1,2] 陈龙秀[1] 曾璐玲[1] 赵俊[1] 

机构地区：[1]华南师范大学生命科学学院,广东广州510631 [2]广州大学生命科学学院,广东广州510006

出　　处：《华南师范大学学报（自然科学版）》2008年第4期107-113,共7页Journal of South China Normal University(Natural Science Edition)

基　　金：广东省科技计划资助项目(2005A20105001,2006B20701001);广东重大科技兴海(渔)资助项目(B200601G02)

摘　　要：研究了北江流域黄尾鲴的个体生殖力及其与性成熟雌性个体多项生物学指标的关系,结果表明:黄尾鲴个体绝对生殖力F在35 707～191 917粒之间,平均为101 038粒;个体体长相对生殖力FL在1 962～7 719粒/cm之间,平均为4 379粒/cm;个体体重相对生殖力FW在270～891粒/g之间,平均为479粒/g;其个体绝对生殖力(F)和体长相对生殖力(FL)均与体长、体质量、净体质量、成熟系数、性腺质量和年龄等呈显著相关,而二者与肥满度的相关性不大;体质量相对生殖力(FW)与成熟系数、性腺质量和年龄呈显著相关,与其他形态学指标相关性不大.The individual fecundity of Xenocypris davidi Bleeker in the Beijiang River and the relationship between the individual fecundity and the biological indexes were studied. The resuhs are summarized as follows. The individual absolute fecundity of Xenocypris davidi with the net weight of 100.8 - 330. 5 g and length of 18.2 - 26. 1 em varies from 35 707 to 191 917 （average 101 038） eggs. The individual relative fecundity FL ranges from 1 962 to 7 719 （ average 4 379） eggs/cm, and Fw ranges from 270 to 891 （ average 479） eggs/g. The individual absolute fecundity F and the relative fecundity FL of body length are signifi- cantly correlated to body length, body weight, net body weight, maturity, ovary weight and age. Both the individual absolute fecundity F and the individual relative fecundity FL have no obvious relationship with fullness. The relative fecundity Fw of body weight is not significantly correlated to these biological indexes except for maturity, ovary weight and age.

关 键 词：黄尾鲴 个体生殖力 北江 

分 类 号：Q959.4[生物学—动物学]