文章基本信息

标题：Age and Growth of an Endemic Tibetan Fish, Schizothorax o'connori , in the Yarlung Tsangpo River
本地全文：下载
作者：Jing-long Yao ; Yi-Feng Chen ; Feng Chen 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2009
卷号：24
期号：2
页码：343-345
DOI：10.1080/02705060.2009.9664303
出版社：Taylor & Francis
摘要：We investigated the age and growth of Schizothorax o'connori in the Yarlung Tsangpo River by examination of annuli from otoliths. The von Bertalanffy model was the most acceptable statistical growth model. Its parameters were as follows: SL∞= 492.4 mm, K = 0.1133, t 0 = −0.5432 year and W∞= 1748.9 g for females; SL∞ = 449.0 mm, K = 0.1260, t 0 = −0.4746 year and W∞ = 1287.0 g for males. Theoretical longevity was 25.9 years for the female and 23.3 years for the male. Moreover, females had larger asymptotic length and weight compared with males.