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本文报道黑龙江中游绥滨江段翘嘴鱼白渔业生物学 ,对 2 0 0 1年三层流剌网～捕捞群体的体长平均为5 6 8(42～ 73)cm ;体重组成平均为 195 0 (80 0～ 4 10 0 )g ;w =0 2 4 34L2 94 0 3;年龄由 5～ 10龄组成 ,以 9龄为主 ,占33 3% ;绝对生殖力平均为 375 2 4 1(12 4 6 70～ 5 15 2 0 0 )粒 ,相对生殖力平均为 12 8 1(75 76～ 16 9 94 )粒 /g ;种群数量为 1 4 3t。调查结果表明 ,黑龙江绥滨江段翘嘴鱼白资源呈下降趋势
In this article, we report the biology of Cephalosporium alburnus in the Suibin section in the middle reaches of Heilongjiang. The body length of the three-layer lancing network ~ fishing group in 2001 was 56.8 (42-73) cm, and the average body weight was 195.0 (80 0 ~ 4 10 0) g; w = 0 2 4 34L2 94 0 3; the age was from 5 to 10 years old, which was mainly 9 years old, accounting for 33.3%; the average absolute fecundity was 375 2 4 1 (12 The average relative fecundity was 12 8 1 (75 76 ~ 16 9 94) grains / g, and the population was 14 3t. The survey results show that the Suibin River Heilongjiang Cephalosporium white resources showed a downward trend