乌苏里江下游海青江段瓦氏雅罗鱼渔业生物学研究  

A study on fishery biology of Leucisus waleckii(Dybowski)in the Haiqing section of Wusulijiang River

作　　者：李国芳 周长海 崔喜顺 董崇智[2] 唐富江[2] 

机构地区：[1]黑龙江省抚远县水产技术推广站,黑龙江抚远156500 [2]中国水产科学研究院黑龙江水产研究所,黑龙江哈尔滨150070

出　　处：《水产学杂志》2004年第1期53-56,共4页Chinese Journal of Fisheries

摘　　要：20 0 3年 4月、 1 0月对乌苏里江下游海青江段 2只船渔获物瓦氏雅罗鱼 2 34尾进行渔业生物学研究。捕捞群体平均体长 1 6 6cm ( 1 5～ 2 9 5cm) ,平均体重 1 5 1 4g ( 5 0～30 0g)年龄由 1 +～ 5 +龄组成 ,2 +占 36% ;绝对生殖力为 80 5 0～ 1 2 4 4 8粒 /g,平均为 370 0粒 /g ;相对生殖力 9 0 4～ 1 0 0 64粒 /g,平均为 34 3粒 /g;肥满度系数雌性为 0 9436～2 0 5 4 7% (平均为 1 999% ) ,雄性为 1 45 77～ 2 0 5 0 % (平均为 1 62 62 % )。The fishery Biology of Leucisus waleckii(Dybowski)were studied based on 234 specimens in the Haiqing section of Wusulijiang River in April and October in 2003.the results are summarized as follows:In the Leucisus waleckii(Dybowski)population average individual full body length is 16 6±3 20cm(interval15～29 5cm), average individual body weight is 151 4±26 43g(internal 50～300g).Average age of Leucisus waleckii(Dybowski) is from 1 +years old to 5 +years old in the capture population,the absolute fecundity of Leucisus waleckii(Dybowski)varies from 8050 to 12448 eggs with a mean of 3700 eggs, and the relative fecundity ranges from 9 04to 100 64eggs/g with a mean of 34 3eggs/g,the number of Leucisus waleckii(Dybowski)population is about 9 6 ton in the spring and about6 4 ton in the Autumn.As result shows above,the resources of this kind of fish in lower reaches of Wusulijiang river is getting less and less quickly.

关 键 词：乌苏里江 下游地区 海青江段 瓦氏雅罗鱼 渔业生物学 

分 类 号：S965.1[农业科学—水产养殖]