鱼池不同水层细菌的密度、昼夜波动及其与主要环境因子的关系  

Bacterial density and its Fluctuation within 24 Hours together with Correlation to Main Environmental Factors in Different Water-layer of Fish-pond

作　　者：包文仲 刘振琦[1] 申玉春[1] 刘国才[1] 

机构地区：[1]内蒙古自治区哲里木畜牧学院,通辽028000

出　　处：《水产科技情报》1993年第3期101-104,共4页Fisheries Science & Technology Information

基　　金：内蒙古自治区教育厅科学发展基金

摘　　要：鱼池细菌的密度为表层高于底层,表、底层细菌密度的差异以夏季最大,冬季次之,春秋两季最小。各季节池塘表层和底层的细菌密度在24h内均呈现一定程度的波动,但经昼夜波动后又大致回到原来水平。细菌密度与水温、COD、浮游动物生物量呈正相关,与浮游植物生物量无直接相关。Bacterial density of surface water-layer was larger than that of bottom waterlayer in investigated fish-pond;the difference of bacterial density both in different seasons and different water-layers ,there was biggest in Summer ,bigger in water ,smallest in Spring and Autumn. We have found there was a certain extent fluctuation within 24 hours in day and night both in different seasons and different water-layers ,and. then it tended to roughly return to original level after a 24-hour's fluctuation. Bacterial density was positively correlated to water temperature, COD(chemical Oxgen Demand) and Zooplankton biomass, but it did not directly correlated with Phytoplankton biomass.

关 键 词：鱼池 水层 细菌 环境因子 

分 类 号：S955.1[农业科学—水产养殖]