【摘要】 2017年4—12月,对采至四川省平武县、北川县涪江支流平通河中的160尾贝氏高原鳅(Triplophysa bleekeri)进行了生物学的初步研究。平通河的贝氏高原鳅体长35.0～84.4mm,体质量0.8～10.2g。年龄可划分4个年龄组,其中1龄的个体为主。平通河的贝氏高原雌鱼和雄鱼均是2龄性成熟。雄鱼的Fulton肥满度为1.55,雌鱼的Fulton肥满度为1.59。平通河的贝氏高原鳅卵径呈双峰分布,推测属于分批产卵类型。绝对繁殖力在1940～3 886粒/尾,平均为2128粒/尾。繁殖期在5—6月和9月。通过对胃的解剖,表明其以摇蚊幼虫及其他水生昆虫为主要食物。更多还原

【Abstract】 The biology of Triplophysa bleekeri collected from Pingtong River,a tributary of the Fujiang River in Sichuan Province,was reported in the paper.Body length was 35.0～84.4 mm,and body weight was 0.6～10.2 g.They were divided into 4 age groups,with the dominant 1 years old group.Triplophysa bleekeri had sexual maturity at two years old.The mean values of the male and female Fulton ponderal index was 1.59(♀)and 1.55(♂),respectively.The egg diameter distribution in mature ovary showed two-peak curve,so the female spawns in batches.The absolute fecundity ranged from 1940 to 3886 individuals and the mean value was 2128 individuals.Breeding season from May to June and September,Through the anatomy of the stomach,it showed that T.bleekeri fed mosquito larvae and other aquatic insects as main food.更多还原