| 徐伟,李池陶,曹顶臣,耿龙武.2008.乌苏里江唇(鱼骨)的鳞片和生长特征.动物学杂志,43(3):108-112. |
| 乌苏里江唇(鱼骨)的鳞片和生长特征 |
| Scale and Growth Characteristics of Hemibarbus labeo in the Wusulijiang River |
| 投稿时间：2007-10-16 修订日期：2008-03-03 |
| DOI： |
| 中文关键词: 唇(鱼骨) 鳞片 年龄 生长 |
| 英文关键词:Hemibarbus labeo Scale Age Growth |
| 基金项目:黑龙江省科委重点研究项目(No.GC05B509);黑龙江水产研究所基本科研业务费专项(No.2007HSYZX-YZ-02) |
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| 中文摘要: |
| 依据238尾鱼的测量数值,研究了乌苏里江野生唇(鱼骨)(Hemibarbuslabeo)的鳞片及生长特征,并调查了乌苏里江抓吉镇江段唇(鱼骨)的捕捞资源情况。结果表明,唇(鱼骨)的鳞片较大,为规则圆鳞,年轮特征清晰,易于分辨,鳞径(R鳞径)与生长时间(年龄t)的回归方程为R鳞径=0.8583t+2.275(n=238,r=0.9868),体长与鳞径的回归方程为L=4.3326R鳞径+0.0293(n=238,r=0.9903)。乌苏里江唇(鱼骨)体重与体长的回归方程为W=0.0115L3.0868(n=238,r=0.9962),其生长特征适合VonBertalanffy生长方程,体重的生长拐点t=4.59龄,W=340.90g。在乌苏里江抓吉镇江段主要捕捞唇(鱼骨)的时间从每年开冰期4月20日到封冰期11月15日左右,其捕捞量随季节的变化而不同,4～5月、10～11月数量最多,为100～150kg/d,6～7月为50～100kg/d,8～9月较少,为30～40kg/d。 |
| 英文摘要: |
| The scale and growth characteristics were studied based on 238 specimens of Hemibarbus labeo in the Wusulijiang River,and the production from H.labeo capture at the Zhuajizhen of Wusulijiang River was investigated.Results showed that:the scale of H.labeo is big,belongs to round scale,annual ring feature is easy to identify.The regression equation between the scale radius(Rsr)and age is Rsr=0.858 3t+2.275(n=238,r=0.986 8),and the regression equation between scale radius and the body length is L=4.332 6Rsr+0.029 3(n=238,r=0.990 3).The regression equation between weight and length is W=0.011 5L3.086 8(n=238,r= 0.996 2),which is according to Bertalanffy growth equation,the body weight growth inflexion point is t=4.59 year,W=340.90 g.Usually,at the Zhuajizhen,it's not frozen during the time from May 20 to November 15,and it is the time for H.labeo to be landed.Production is different on the season,peak during April,May,October and November is about 100-150 kg/d,and 50-100 kg/d for June and July,the lowest is about 30-40 kg/d during August and September. |
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