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| Biology of Triplophysa crassilabris |
| YAN Sili,GUO Yanshu,YANG Jun,GUO Zhenwei,ZENG Xiaoqin |
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Abstract This article reports the biology of Triplophysa crassilabris collected at Xiaman village , Ruoergai County ,and Muke Township ,Hongyuan district in Western Sichuan Plateau from June to July in 2011 and August in 2013 .The sampled fish had body length (L) from 39 .0 mm to 71 .3 mm and body weight (m) from 0 .68 g to 4 .57 g ,and was divided into five age classes ,with the majority of 3 years old class . T . crassilabris feeds mainly on algae , plant debris and insect larvae , and showed homometric growth .The condition factor was found to be increased in the female individuals from 1 year old to 3 years old ,and to be decreased gradually with age 3 years old towards . The male individuals had elevated condition factor within 1 year old and 2 years old and afterwards gradual decrease with age .The fish spawn in batch from early June to mid -August in the aquatic plants and gravels .The fish had adhesive eggs , with absolute fecundity ranging from 922 to 4436 ,increasing as increase in age .
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Received: 25 August 2015
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