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大口鲇幼鱼摄食、生长及驯化的初步研究
引用本文:潘光碧,胡德高,邹桂伟.大口鲇幼鱼摄食、生长及驯化的初步研究[J].湖泊科学,1996,8(4):345-350.
作者姓名:潘光碧  胡德高  邹桂伟
作者单位:水利部水库渔业研究所,中国科学院水库渔业研究所 武汉 430073,武汉 430073
摘    要:根据1991年1~12月的调查,陆水水库的浮游植物共8门118属,以绿藻、硅藻、蓝藻门的种类为主,占总属数的86.44%;浮游动物198种,其中原生动物38种、轮虫68种、枝角类61种、桡足类31种。浮游植物年平均数量和生物量分别为3.1449×10~6cell/L和1.937mg/L,数量以蓝藻、隐藻、硅藻最多,占总数量的91.33%,生物量以隐藻、硅藻、绿藻最大,占总生物量的85.03%,浮游植物初级毛产量为3.4gO_2/m~2·d。浮游动物年平均数量和生物量分别为2323.8ind/L和1.4837mg/L,数量以原生动物和轮虫最多,占96.89%,生物量以枝角类和桡足类为主,占79.94%.陆水水库浮游生物种类组成和现存量在不同的水域差异较大,季节变化明显。按水化学分析结果及浮游生物特征判定,陆水水库的营养类型为中营养型。还讨论了环境因子对水库浮游生物的影响。

关 键 词:浮游生物  现存量  营养类型  陆水水库  水库  藻类
收稿时间:1994/11/7 0:00:00
修稿时间:1995/3/20 0:00:00

Feeding growth and domestication s. Meridionalis Chen larvae
Pan Guangbi,Hu Degao and Zou Guiwei.Feeding growth and domestication s. Meridionalis Chen larvae[J].Journal of Lake Science,1996,8(4):345-350.
Authors:Pan Guangbi  Hu Degao and Zou Guiwei
Institution:Changjiang Fisheries Research Institute, Shashi 434000,Changjiang Fisheries Research Institute, Shashi 434000 and Changjiang Fisheries Research Institute, Shashi 434000
Abstract:The paper deals with feeding and growth of domestication S. Meridionalis Chen larvae under different kinds of food from July to August, 1992.Experiment shows that the larvae grew fast,especially by feeding platable life fishes.When life fishes were fed to larvae, their body weight increased 2.67,4.60 times as heavy as original weight for 21 days, 37.9-84.3% faster than those fed with fish meat.The larvae had defferent feeding habits in the morning and at night.The daily feeding amount per gram body weight lalvae was 0.1-0.2g for life fishes and 0.18-0.29g for fish meat everyday.The former food coefficient was 2.32-3.12, and the later, 4.15-7.86.The results also show that the larvae fed artificial mixed feed, if only they were domesticated gradually by higher protein feed.Growth rate was affected during domestication, while fcxxl coefficient was higher too.
Keywords:Plankton  species composition  standing crop  Lushui Reservoir
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