Scale and Growth Characteristics of Hemibarbus labeo in the Wusulijiang River
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    Abstract:

    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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XU Wei, LI Chi-Tao, CAO Ding-Chen, GENG Long-Wu. 2008. Scale and Growth Characteristics of Hemibarbus labeo in the Wusulijiang River. Chinese Journal of Zoology, 43(3): 108-112.

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  • Received:October 16,2007
  • Revised:March 03,2008
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