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2001年对黑龙江中游施氏鲟155尾进行种群生态学特征研究。捕捞群体结构特征为:全长平均为153.9(105～232)cm,体重平均为17.07(5.95～62.65)kg,年龄平均为16.9(8～29)龄,全长体重相关关系W=6.9614×10-6L2.9281,性比为1:1.8,绝对生殖力平均为433496.7(6200～1318350)粒,相对生殖力平均为11173.3(6893～15694)粒/kg,卵径平均为3.65(3.0～4.5)mm,成熟系数平均为22.49%(12.5%～33.3%);捕捞群体数量为620尾,计12t。调查结果表明,黑龙江中游的施氏鲟资源呈逐渐下降的趋势。
In 2001, the population ecology characteristics of 155 Acipenser schistosomiasis in the middle reaches of Heilongjiang were studied. The structural characteristics of the fishing population were as follows: the average length was 153.9 (105 ~ 232) cm, the average weight was 17.07 (5.95 ~ 62.65) kg, the average age was 16.9 (8 ~ 29) The average relative fecundity was 433496.7 (6200 ~ 1318350), the relative fecundity was 11173.3 (6893 ~ 15694) grains / kg, the average egg diameter was 3.65 (3.0-4.5) mm, the average of maturity coefficient was 22.49% (12.5% -33.3%); the number of fishing population was 620, accounting for 12t. The survey results showed that the resources of Amur sturgeon in the middle reaches of Heilongjiang Province showed a gradual downward trend.