Age Structure and Growth Characteristic of Garra orientalis from the Nujiang River
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    Abstract:

    One hundred and thirty six specimens of Oriental Sucking Barb(Garra orientalis),ranged 54-167 mm in length and 3.0-114.6 g in weight were collected from October 2006 to October 2008 in the Nujiang River.Their age and growth were examined.The age estimation was made by the otolith ring and 10 age classes were identified.The relationship between the otolith radius and body length was expressed as L=0.061R1.131 (n=125,R2=0.907),while that between body length and body weight as W=0.1×10-4L3.160.von Bertalanffy growth parameters derived from back-calculated body length was as follows:L=224.79 mm,k=0.094/year,t0 =0.51 year for male and L=228.91 mm,k=0.091/year,t0 =0.639 year for female;L=227.78 mm,k=0.091/year,t0 =0.588 year for all the collected specimens.The inflection point of the weight growth curve was 12.15 years for male and 13.75 years for female.

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TIAN Hui-Wu, YUE Xing-Jian, CHEN Da-Qing, DENG Hua-Tang, LIU Shao-Ping. 2010. Age Structure and Growth Characteristic of Garra orientalis from the Nujiang River. Chinese Journal of Zoology, 45(1): 104-110.

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  • Received:June 05,2009
  • Revised:November 15,2009
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