The migratory and endemic Labeobarbus platydorsus and Labeobarbus tsanensis are threatened by extinction. This study is the first to use otolith microstructural analyses to infer life history traits of these species to assist in future conservation. We examined whole asterisci otoliths from 750 L. tsanensis and 542 L. platydorsus collected monthly between May 2016 and April 2017. The size of the L. tsanensis and L. platydorsus individuals collected was in the range 123–363- and 115–630-mm fork length respectively. For both species, 4- and 5-year-old individuals were dominant, whereas specimens older than 6 years were rarely recorded. The maximum ages recorded for L. tsanensis and L. platydorsus were 11 and 17 years respectively. Of the different growth models evaluated, the logistic growth model yielded the best fit to age-at-length data. For both species, growth parameters differed significantly between males and females, and sexual maturation proceeded faster in males than in females. Natural mortality estimates based on longevity were higher than the estimates based on growth parameters. For both species, females were predominant over males and the length–weight relationships were curvilinear. The estimated life history traits are important input parameters in further stock assessment evaluation of the species and should allow fisheries managers to optimise future conservation strategies.

迁徙和地方性的Labeobarbus platydorsus和tsanensis Labeobarbus受到灭绝的威胁。这项研究是首次使用耳石微结构分析来推断这些物种的生活史特征，以协助将来的保护。我们检查了2016年5月至2017年4月每月收集的750株tsanensis和542 d platydorsus的整个asterisci耳石。所收集的t.ensisnensis和L. platydorsus个体的大小在123–363-和115–630- mm叉长。对于这两个物种，4岁和5岁的个体都占优势，而6岁以上的标本很少记录。记录的最大年龄t.ensis和L. platydorsus分别为11岁和17岁。在评估的不同增长模型中，逻辑增长模型最适合按年龄增长的数据。对于这两个物种，雄性和雌性的生长参数都存在显着差异，雄性的性成熟过程比雌性快。基于寿命的自然死亡率估算值高于基于生长参数的估算值。对于这两个物种，雌性都高于雄性，并且长度与体重的关系是曲线的。估计的生活史特征是对该物种进行进一步种群评估的重要输入参数，并应使渔业管理者能够优化未来的保护战略。