| 黑龙江施氏鲟繁殖群体结构现状调查 |
| Status Quo of Breeding Population Structure of Acipenser schrencki |
| 投稿时间：2011-10-08 修订日期：2011-12-02 |
| DOI： |
| 中文关键词:施氏鲟 繁殖群体 群体结构 |
| 英文关键词:Acipenser schrencki breeding population population structure |
| 基金项目:中央公益性行业(农业)科研专项经费资助(200903048-06) |
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| 中文摘要: |
| 2010年5月10日至6月20日对黑龙江同江至抚远江段的施氏鲟(Acipenser schrencki)捕捞群体结构进行调查,测量施氏鲟90尾,全长96～201cm,平均值为(150.53±18.93)cm;其中,雌性个体全长113～201cm,平均值为(163.14±22.24)cm;雄性个体全长96～183cm,平均值为(138.48±20.55)cm。体重3～44kg,平均值为(18.46±10.17)kg;其中,雌性个体体重7.5～44kg,平均值为(24.48±10.33)kg;雄性个体体重3～30.5kg,平均值为(12.70±5.94)kg。繁殖群体的雌雄比例为1:1.05,以16～20龄个体为主,占捕捞群体的37.2%;优势群体为11～25龄,占总群体的84.7%。繁殖群体中,雌性的生长方程为:y=0.001x3.3169,R2=0.9202;雄性的生长方程为:y=0.0029x3.0899,R2=0.9375。 |
| 英文摘要: |
| A survey on the population structure of Acipenser schrencki in the Amur reach between Tongjiang City and Fuyuan County was conducted from May 10 to June 20 in 2010，and 90 fish of A. schrencki were measured，full length being between 96 and 201cm，with average length(150. 53 ±8. 93)cm. .Of 90 fish，full length of individual female was 113一201cm，average length(163.14 ±22. 24)cm;full length of individual male was 96-183 cm，average length(138.48 ±20.55)cm. The individual body weight was 3-44 kg，average weight(18.46±10. 17)kg. The weight of individual male 7. 5一44 kg，average weight (24. 48 ±10. 33)kg ;The weight of individual female 3一30.5 kg，average weight(12. 70 ±5.94)kg. The ratio between female and male of the breeding population was 1:1.05; individuals of age 16一20 were of dominance，representing 37.2% of the catch . Dominant individuals were 11一25 years of age，constituting 84.7% of the total. Growth equation of female in breeding population is y=0.00lx3.0899，R2=0. 9202，whilst growth equation of male in breeding population is y=0. 0029x3.0899，R2=0. 9375. |
| 韩骥,韩英,王云山,石振广,李文龙,胡光源,李育东.2012.黑龙江施氏鲟繁殖群体结构现状调查[J].水生态学杂志,33(1):144-148. |
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