千岛湖细鳞鲴与黄尾鲴年龄、生长和繁殖的比较研究  

Comparison and primary study of age,growth and reproduction between Xenocypris microlepis and Xenocypris davidi in Qiandao Lake

作　　者：张峻德[1] 侯文华[1] 刘其根[1] 

机构地区：[1]上海海洋大学农业部水产种质资源与养殖生态重点开放实验室,上海201306

出　　处：《上海海洋大学学报》2014年第1期70-79,共10页Journal of Shanghai Ocean University

基　　金：公益性行业(农业)专项(201303056);国家自然科学基金(31072218)

摘　　要：2010年9月至2012年8月在千岛湖采集了709尾细鳞鲴及295尾黄尾鲴，对这两个相近种进行年龄、生长及繁殖的研究，旨在了解千岛湖细鳞鲴与黄尾鲴种群的生长规律。结果表明：细鳞鲴与黄尾鲴所获样本的年龄范围为1～5龄，优势年龄均为2～3龄，分别占整个样本的84%和76%；其中细鳞鲴体长与体重的生长关系式为W=0.0223L2.8785（R2= 0.9439）；Von Bertalanffy体长、体重生长方程分别为Lt = 38.82[1-e-0.2450（t＋1.2636）]、Wt =836.21[1-e-0.2450（t＋1.2636）]2.8785，拐点年龄为3.05龄，对应体长为25.33 cm，体重244.78 g；雌雄比例为0.9568∶1，其个体绝对繁殖力为24 893～132 521粒，平均71 283粒。黄尾鲴体长与体重的生长关系式为W = 0.0381L2.7172（R2 = 0.9439），Von Bertalanffy体长、体重生长方程分别为Lt = 41.99[1-e-0.2264（t＋0.9746）]、Wt = 980.22[1-e-0.2264（t＋0.9746）]2.7172，拐点年龄为3.45龄，对应体长为26.54 cm，体重281.88 g；雌雄比例为1.4513∶1，其个体绝对繁殖力为39 813～228 541粒，平均109 141粒。This study collected 709 X. microlepis and 295 X. davidi specimens, and compared their age, growth and reproduction from September 2010 to August 2012 in the Qiandao Lake. The result showed that age range of X. microlepis and X. davidi were 1-5 years. The advantage age of 84% X. microlepis and 76% X. davidi were 2-3 years. The growth characteristics of length and weight about X. microlepis could be described as W=0.0223L2.8785（R2=0.9439）. The growth of X. microlepis could be described with von Bertalanffy equation as Lt = 41.99[1-e-0.2264（t＋0.9746）],Wt=980.22[1-e-0.2264（t＋0.9746）]2.7172. The inflection point of X. microlepis growth age was 3.05 years, which body length was 25.33 cm and body weight was 244.78 g; The X. microlepi＇s sex ratio was 0.956 8：1, The individual absolute fecundity varied was 24 893-132 521 eggs（71 283 on average）. The growth characteristics of length and weight about X. davidi could be described as W= 0.0381L2.7172 （R2=0.9439）. The growth of X. davidi could be described with von-Bertalanffy equation as Lt= 41.99[1-e-0.2264（t＋0.9746）],Wt = 980.22[1-e-0.2264（t＋0.9746）]2.7172. The inflection point of X. davidi growth age was 3.45 years and the corresponding body length was 26.54 cm and body weight was 281.88 g; The X. davidi＇s sex ratio was 1.4513：1. The individual absolute fecundity was 39 813-228 541 eggs（109 141 on average）.

关 键 词：细鳞鲴 黄尾鲴 年龄 生长 繁殖 千岛湖 

分 类 号：S917[农业科学—水产科学]