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Position: Home > Articles > Growth Characteristics and Life-cycle Pattern of Longnose Gudgeon Saurogobio dabryi Bleeker in Angu Reservoir of Dadu River Chinese Journal of Fisheries 2018,31 (4) 1-4

大渡河安谷库区蛇鮈生长特征和生活史类型

作  者:
王崇;王文君;黄晋;黄道明
单  位:
水利部中国科学院水工程生态研究所水利部水工程生态效应与生态修复重点实验室;中国水电建设集团圣达水电有限公司
关键词:
蛇鮈;生长特性;生活史类型
摘  要:
2013年5月—2016年11月在大渡河安谷库区采用电捕或网捕方法采集蛇鮈Saurogobio dabryi 411尾,现场测量全长和体质量等基础生物学资料,利用软件FiSATⅡ计算蛇鮈的生长参数(L_∞和k)和自然死亡系数(M)。结果表明,蛇鮈的生长参数分别为:L_∞=24.20cm,k=0.51,t_0=-0.34,M为1.04/年。蛇鮈的全长(L)和体质量(W)相关性方程W=0.010L~(2.87)(R~2=0.944),生长方程L_t=24.20[1-e~(-0.51(t+0.34))]和W_t=84.29 [1-e~(-0.51(t+0.34))]~3。模糊聚类法分析表明,蛇鮈属于r-选择鱼类。
译  名:
Growth Characteristics and Life-cycle Pattern of Longnose Gudgeon Saurogobio dabryi Bleeker in Angu Reservoir of Dadu River
作  者:
WANG Chong;WANG Wen-jun;HUANG Jin;HUANG Dao-ming;Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem, Ministry of Water Resources,Institute of Hydroecology, Ministry of Water Resources & Chinese Academy of Sciences;Shengda Hydropower Construction Group Co.Ltd.;
关键词:
Saurogobio dabryi Bleeker;;growth characteristics;;life-cycle pattern
摘  要:
A total of 411 specimens were collected by electric capture and net capture from May 2013 to November 2016 to study the growth characteristics and life-cycle pattern of longnose gudgeon Saurogobio dabryi Bleeker in Angu Reservoir in Dadu River. Growth parameters calculated by Fi SAT Ⅱ software based on total length and body weight data indicated that the relationship between total length(L)and body weight(W)was described as W= 0.010 L2.87(R2=0.944, n=411). The von Bertalanffy equations of longnose gudgeon were Lt=24.20[1-e-0.51(t+0.34)] and Wt=84.29 [1-e-0.51(t+0.34)]3, with asymptotic length(L∞)of 24.20 cm, growth coefficient(k)of0.51, and hypothetical age(t0)of-0.34. The natural mortality coefficient(M)was estimated as 1.04 per year, and fuzzy cluster analysis revealed that the longnose gudgeon had life-cycle pattern of r-selection.

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