发头裸腹溞(Moina irrasa)体长——体重回归方程  

REGRESSION EQUATION BETWEEN THE BODY LENGH AND WEIGHT IN QUFU'S MOINA IRRASA

作　　者：郑又雄[1] 张泰山[1] 

机构地区：[1]曲阜师范大学生物系

出　　处：《海洋湖沼通报》1992年第3期40-45,共6页Transactions of Oceanology and Limnology

摘　　要：发头裸腹溞在曲阜分布较广,能在水域中形成优势种。作者测定了发头裸腹溞的不同体长组的鲜重、干重以及经4％福尔马林溶液固定后的样本的湿重、干重,并计算出体长—体重回归方程。同时对干重和湿重的百分比进行了比较。Moina irrasa is distributed comparatively widely in Qufu and can form a dominant species in its waters. Its wet and dry weights of different body length groups of unpreserved specimens and those preserved in formalin specimens have been weighed. The body length-body weight regression equations were deduced while its diagram was plotted. The percentages of dry-wet weight were also compared.The regression equation between the fresh weight and body length of unpreserved ind. may be expressed as: lnW_(fresh)=2.20436lnL-0.873253, r=0.9807The regression equation between the dry weight and body length(L) of unpreserved ind. may be expressed as: lnW_(dry)=3.32563lnL-4.28897, r=0.9672The regression equation between the wet weight and body length(L) of preserved ind. by formalin may be expressed as: lnW_(wet)=1.84178lnL-0.64742, r=0.9835The regression equation between the dry weight and body length(L) of preserved ind. by formalin may be expressed as: lnW_(dry)=2.99626 lnL-4.38704, r=0.9669

关 键 词：体长 体重 回归方程式 发头裸腹蚤 

分 类 号：Q959.223.3[生物学—动物学]