新疆额尔齐斯河高体雅罗鱼个体繁殖力研究  

Individual fecundity study of Leuciscus idus in the Irtysh River of Xinjiang

作　　者：韩豪祥 马新江 金洪宇 廉杰 薄永芳 马波[1,2] HAN Haoxiang;MA Xinjiang;JIN Hongyu;LIAN Jie;BO Yongfang;MA Bo(Heilongjiang Basin Fishery Resources and Environment Scientific Observation Experimental Station,Ministry of Agriculture and Rural Affairs,Heilongjiang River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Harbin 150076;College of Fisheries and Life,Shanghai Ocean University,Shanghai 201306;Xinjiang Toutun River Lou Zhuangzi Reservoir Engineering Construction Administration,Changji 831100;College of Fisheries and Life,Dalian Ocean University,Dalian 11623)

机构地区：[1]中国水产科学研究院黑龙江水产研究所,农业农村部黑龙江流域渔业资源与环境科学观测实验站,哈尔滨150076 [2]上海海洋大学水产与生命学院,上海201306 [3]新疆头屯河楼庄子水库工程建设管理局,昌吉831100 [4]大连海洋大学水产与生命学院,大连116023

出　　处：《安徽农业大学学报》2024年第1期74-81,共8页Journal of Anhui Agricultural University

基　　金：农业农村部农业财专项“西北地区重点水域渔业资源与环境调查”;中国水产科学研究院基本科研业务费专项资金项目(2023TD07)共同资助。

摘　　要：新疆额尔齐斯河流域高体雅罗鱼属于自治区二级保护动物,为对其自然群体进行资源修复,于2020年5月,在新疆额尔齐斯河布尔津河段采集高体雅罗鱼117尾,其中雌性Ⅳ期样本53尾,可进行个体繁殖力相关研究。结果表明:繁殖群体由3+~7+龄个体组成,个体绝对繁殖力为(28390~97184)粒,平均为(46955±14102)粒;体长相对繁殖力为(97~253)粒·cm^(-1),平均为(145±32)粒·cm^(-1);体质量相对繁殖力为(70~131)粒·g^(-1),平均为(85±11)粒·g^(-1);从多元回归分析中可以得出卵巢质量与个体绝对繁殖力和体长相对繁殖力均呈正相关,且卵巢重与个体繁殖力之间的偏相关系数系数高于净体质量、年龄和性腺成熟系数;从最佳拟合方程中可以看出个体绝对繁殖力与卵巢质量的拟合度最高(R^(2)=0.916),关系式为F=1.074 m0^(2)+153.347 m0+19611.041。因此,通过卵巢质量与个体绝对繁殖力的拟合方程可以预测额尔齐斯河流域中高体雅罗鱼自然种群的繁殖能力,从而丰富其繁殖生物学资料,为高体雅罗鱼的资源养护和人工繁育提供科学依据。To restore the resources of the natural group of Leuciscus idus in the Irtysh River Basin of Xinjiang,117 L.idus were collected in the Burqin section of the Irtysh River in Xinjiang in May 2020,including 53 female stageⅣsamples,which can be used for individual fecundity related studies.The results showed that the breeding population was composed of 3+-7+years old,and the individual absolute fecundity of individuals was 28390-97184 grains,with an average of(46955±14102)grains.The relative fecundity of standard length was(97-253)grains·cm^(-1),and the average was(145±32)grains·cm^(-1);the relative fecundity of body mass was(70-131)grains·g^(-1),and the average was(85±11)grains·g^(-1);from multivariate regression analysis,it could be concluded that ovarian mass was positively correlated with individual absolute fertility and relative fertility of standard length,and the partial correlation coefficient between ovarian weight and individual fertility was higher than of eviscerated body weight,age and gonadosomatic index.From the best-fitting equation,it could be seen that the fit degree of individual abso-lute fecundity and an ovarian mass was the highest(R^(2)=0.916),and the relationship was F=1.074 m0^(2)+153.347 m0+19611.041.Therefore,the fitting equation of ovarian mass and individual absolute fecundity can predict the repro-ductive capacity of the natural population of L.idus in the Irtysh River Basin,thereby enriching its reproductive bi-ology data and providing a scientific basis for resource conservation and artificial breeding of L.idus.

关 键 词：额尔齐斯河 高体雅罗鱼 个体繁殖力 

分 类 号：S917.4[农业科学—水产科学]