Study on the Growth and Age of Spinibarbus denliculatus denliculatus in Pearl River System

Guangjun Wang, Deguang Yu, Jun Xie, Haiying Wang, Ermeng Yu, Wangbao Gong, Lihua Tang


Study on the growth characteristics of Spinibarbus denticulatus denticulatus Oshima were carried out based on
the specimens collected from Xijiang valley and Beijiang valley of the Pearl River system. The results show that
the annual-ring feature belongs to the loose-close and cut pattern. The new annual-ring is formed during the
period from April to June. The relationship between body length and weight of S. d. denticulatus in Xijiang
valley and Beijiang valley can be expressed by the power function equations: WX=2.4984×10-2L2.9996(r=0.9561)
and WB=1.3733×10-2L2.8159(r=0.9253) respectively. Based on the analysis of the growth stage, the female S. d.
denticulatus gets mature at the age of five years old. The male one gets mature at the age of three years old. The
breeding season of S. d. denticulatus is from April to June.

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International Journal of Biology   ISSN 1916-9671(Print)   ISSN 1916-968X  (Online)

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