黑龙江绥滨江段鲢鱼渔业生物学研究  

The study on fishery biology of Hpohthalmichthys molitrix cuvier et valencienes in the suibin section of Heilongjiang River

作　　者：司凤云 董崇智[2] 赵春刚[2] 杨丽萍 

机构地区：[1]黑龙江省农垦局290农场畜牧水产公司,绥滨156202 [2]中国水产科学研究院黑龙江水产研究所,哈尔滨150070

出　　处：《水产学杂志》2002年第2期16-20,共5页Chinese Journal of Fisheries

摘　　要：20 0 1年春汛期对黑龙江中游绥滨江段鲢鱼三层流刺网捕捞群体生态学特征进行研究。捕捞群体由体长 47～ 74 5cm组成 ,平均为 61 0 8cm ;体重由 1 70 0～ 70 0 0g组成 ,平均为 35 74 3g组成 ,年龄 3+～ 8+龄组成 ,以 4龄为主 ,占 2 6 2 %;绝对生殖力由 31 85 0 0～7631 2 5粒组成 ,平均为 445 5 93粒 ;相对生殖力 81 66～ 2 31 2 5粒 /g ,平均为 1 43 1 2粒 /g ;成熟系数雌群平均为 1 8 68%( 1 2 82～ 2 8 0 3) ,雄群平均为 2 1 2 %( 1 0 9～ 3 35 ) ;肥满度雌群平均为 0 0 1 35 %( 0 0 1 2 1～ 0 0 1 46) ,雄群平均为 0 0 1 40 %( 0 0 1 2 8～ 0 0 1 49) ;种群数量占 5 1 4%,重量占 70 8%,共计 7 8t,计 2 0 78尾。调查结果表明黑龙江绥滨江段鲢鱼资源呈下降趋势。The studles on fishery biology of Hpohthalmichthys molitrix cuvier et valencienes in the suibing section of heilongjiang river was studied in the spring of 2001.The study results are as follows: The body length of the capture population range from 47 to 74 5cm with a mean of 61 08cm;the body weight range from 700g to 1700g with a mean of 3574 3g,the age range from 3 + age to 8 + age and the dominant age was 4 years old (26 2%);Absolute fecundity varied from 318500eggs to 763125 eggs with a mean of 445593 eggs and the relative fecundity varied from 81 66 eggs/g to 231 25 eggs/g with a mean of 143 12 eggs/g;Gonadosomatic index of the female range from 18 82% to 28 03% with a mean of 18 68% and that of the male range from 1 09% to 3 35% with a mean of 2 12%;the fullness of female range from 1 23% to 1 60% with a mean of 1 38% and that of male range from 1 26% to 1 56% with a mean of 1 27%.the population take up 51 4% and the weight of them take up 70 8% (weght 7 8t and account to 2078)in totle.The result revealed that Hpohthalmichthys molitrix cuvier et valencienes resouces in the suibin section of heilongjiang river is declining.

关 键 词：绥滨江段 黑龙江 鲢鱼 渔业生物学 捕捞群体 生态学特征 

分 类 号：Q959.468[生物学—动物学] S96[农业科学—水产养殖]