福建南部沿海日本蟳的生物学特性  

The Biological Character of Charybdls Japonica in Southern Fujian

作　　者：叶孙忠[1] 张壮丽[1] 叶泉土[1] 

机构地区：[1]福建省水产研究所,福建厦门361012

出　　处：《福建水产》2002年第4期18-21,共4页Journal of Fujian Fisheries

摘　　要：福建南部沿海的日本(?)群体,其甲宽优势组为55-77mm,体重优势组为30-70g,雌雄性差异很小。雌雄性比为1:0.73,雌性多于雄性。雌性初次性成熟的最小甲宽为48mm,最小体重为24g,大量性成熟的甲宽和体重分别为55-65mm和30-50g。摄食强度较小,平均摄食等级为0.68。The dominant groups of the carapace width and body weight of Chaiybdis japonica in southern Fujian were 55-77mm and 30-70g respectively. The sizes of the females and males differed less. The sex ratio was 1:0.73, the female was more than the male. The females at first maturity were 48mm in carapace width and 24g in body weight, and a great number of maturity occurred in 55-65mm and 30-50g. The feeding intensity was merely 0.68.

关 键 词：日本XUN 生物学特性 群体组成 生殖习性 

分 类 号：Q959.223.5[生物学—动物学]