%0 Journal Article %T 武汉后湖湖球蚬的周年生产量 %T Annual Production of Sphaerium Lacustre in Lake Houhu (Wuhan, China) %A 闫云君 %A 梁彦龄 %A YAN,Yunjun %A LIANG,Yanling %J 湖泊科学 %J Journal of Lake Sciences %@ 1003-5427 %V 15 %N 1 %D 2003 %P 76-80 %K 后湖湖球蚬Sphaerium lacustre;生产量;武汉后湖;P/B系数 %K Lake Houhu;Sphaerium lacustre;production;P/B ratio %X 采用体长频率法和瞬时生长率法对后湖湖球蚬(Sphaerium lacustre)的周年生产量进行了测算.结果表明,两种方法得到的生产量较为吻合.生产量的带壳湿重和去壳干重分别是:体长频率法,1.048 g/(m2·a), 0.0599 g/(m2·a);瞬时生长率法,1.178 g/(m2·a), 0.0673 g/(m2·a).对应的P/B系数为3.2.,3.4. %X The production of Sphaerium. lacustre in Lake Houhu was estimated by two methods. The results were:1.048 g/(m2·a) of fresh weight with shell or 0.0599g/(m2·a) of dry weight shell-free by size-frequency method; 1.178 g/(m2·a) of fresh weight with shell or 0.0673 g/(m2·a) of dry weight shell-free by instantaneous growth method. The corresponding P/B ratio were 3.2 3.4, respectively. Thus, the results by the two methods are coincided each other. %R 10.18307/2003.0111 %U http://www.jlakes.org/ch/reader/view_abstract.aspx %1 JIS Version 3.0.0