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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
Address:College of Life Sciences, Sichuan University, No.29, Wangjiang Road, Chengdu, Sichuan Province, 610064, China
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Reproductive Biology of Liobagrus marginatus (Günther) in Panzhihua Reach, Jinshajiang River
Author of the article:
Author's Workplace:Qinzhou university
Key Words:Jinshajiang River; Liobagrus marginatus (Günther); Reproductive biology
Abstract:The aim was to explore the basic biology of the Liobagrus marginatus (Günther) in the Panzhihua reach of Jinshajiang River. 729 specimens were used to analyze the age structure, sex ratio and egg diameter distribution. The catch was consisted of 4 ages and 2-age group was dominant which accounted for 63.83%. Among sexual mature specimens, 64 were female and 77 were male, which matched the ratio of 1: 1 (X2 = 1.199, p> 0.05). The minimum body length and body weight of mature female and male were 66.8mm, 5.7g and 67.32mm, 6.7g, respectively. The breeding season was from Feb to Jun. Liobagrus marginatus (Günther) is one-time spawning fish and egg diameter range is from 0.29mm to 3.86mm. The research provides the period of sexual mature is shortened which indicates urgent need to strengthen the protection of resources.
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