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鄱阳湖黄鳝的生长特征
引用本文:李芝琴,欧阳珊,吴小平,戴银根,胡火庚. 鄱阳湖黄鳝的生长特征[J]. 动物学杂志, 2008, 43(3): 113-120
作者姓名:李芝琴  欧阳珊  吴小平  戴银根  胡火庚
作者单位:1. 南昌大学生命科学学院,南昌,330031
2. 江西省水产技术推广站,南昌,330046
基金项目:引进国际先进农业科技计划(948计划) , 南昌市科技局项目
摘    要:以基舌骨和脊椎骨作为年龄鉴定的材料,研究了鄱阳湖黄鳝(Monopterus albus)种群的生长特征.结果表明,种群的年龄结构分别为:雌性1~5龄,雄性2~6龄,2~5龄为黄鳝性别的过渡期(间性).2~4龄为优势年龄组,占渔获物的89.75%,相对应的体长为30~50 cm,体重为30~120 g.体长(L)与体重(W)的关系为:W=0.000 4L3.2601(♀);W=0.001 4L2.9008(∮).按生长指标值分析,阶段生长可以明显地划分为两个时期,即2龄前的生长迅速期和2龄后的生长稳定期.拟合的Von Bertalanffy生长参数分别为雌性L∞=78.5 Cm,k=0.174 02/y,t0=-1.203 2 Y,W∞:602.01 g;雄性L∞=102.3 cm,k=0.118 45/y,t0=-1.310 1 Y,W-=947.32 g;生长特征参数分别为ψ=3.030 3(♀)和ψ=3.093 4(∮);雌雄个体生长差异显著.

关 键 词:黄鳝  年龄  生长  鄱阳湖  鄱阳湖  黄鳝  生长特征  Poyang Lake  差异显著  个体生长  特征参数  生长参数  Bertalanffy  拟合  稳定  时期  划分  阶段生长  分析  指标值  关系  体重  对应  渔获物
文章编号:0250-3263(2008)03-113-08
收稿时间:2007-10-23
修稿时间:2007-10-23

The Growth Characteristics of Monopterus albus in Poyang Lake
LI Zhi-Qin,OUYANG Shan,WU Xiao-Ping,DAI Yin-Gen and HU Huo-Geng. The Growth Characteristics of Monopterus albus in Poyang Lake[J]. Chinese Journal of Zoology, 2008, 43(3): 113-120
Authors:LI Zhi-Qin  OUYANG Shan  WU Xiao-Ping  DAI Yin-Gen  HU Huo-Geng
Affiliation:LI Zhi-Qin OUYANG Shan WU Xiao-Ping DAI Yin-Gen HU Huo-Geng( College of Life Science,Nanchang University,Nanchang 330031, Jiangxi Fishery Technical Extension Station,Nanchang 330046,China)
Abstract:Monopterus albus,belonging to Synbranchidae,Synbranchiformes,is an economically important species in southeastern Asia for food production,which undergoes natural sex reversal from female via intersex into male during its life.Some studies have been performed on the biology and ecology characteristics of M.albus,but no information on the growth characteristics of M.albus in Poyang Lake has been published.In this study,age and growth characteristics were studied based on 244 specimens of M.albus collected fr...
Keywords:Monopterus albus  Age  Growth  Poyang Lake  
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