中华绒螯蟹幼体生长特性及投饵量的观察  

The larval growth specificity and feeding observation of Chinese mitten crab

作　　者：刘中 石俊艳 丁茂昌 国际翔[3] 

机构地区：[1]辽宁省淡水水产研究所,辽宁辽阳111000 [2]营口市水产局,辽宁营口115000 [3]中科院沈阳应用生态研究所,辽宁沈阳110015

出　　处：《大连水产学院学报》1999年第4期68-72,共5页Journal of Dalian Fisheries University

基　　金：辽宁省海洋水产厅"河蟹病害应急攻关防治技术研究"课题

摘　　要：以一座576 m3 水体育苗室进行工厂化河蟹育苗生产为例, 剖析了从氵蚤状幼体Ⅰ期(Z1) 至Ⅴ期(Z5) 及大眼幼体期(M) 饵料投喂量及河蟹幼体变态生长的特性, 在此基础上对幼体的生长和投饵及影响Z5 至M 期变态率的因素等问题进行了探讨。测得河蟹幼体各变态期平均体重分别为0-050 ,0-138 ,0-411 , 0-900 , 2-298 mg 和6-890 mg, 各期的平均日投饵率分别为194 % , 107 % , 123 % , 108 % , 64 % 和147 % 。Food consumption and metamorphic growth specificity of Chinese mitten crab (\%Eriocheir sinensis\%, H Milne edward) were determined from Zoea (Z\-1-Z\-5) to Megalopa (M)in a hatchery with water volume of 576 m\+3. Some problems about the growth and food consumption of the larvae and the factors influencing the metamorphic rate from the Z\-5 to M were discussed The body weight and food consumption of the larvae during each metamorphic period was 0 05, 0 138, 0 411, 0 900, 2 298 mg and 6 890 mg respectively The average daily food consumption rate was 194%, 107%, 123%, 108%, 64% and 147% respectively

关 键 词：中华绒螯蟹 Sao状幼体 大眼幼体 生长 投饵 

分 类 号：S966.16[农业科学—水产养殖]