亭下水库伪鱼腥藻昼夜垂直变化初步研究  

Diel Vertical Migration of Pseudoanabaena sp.in Tingxia Reservoir

作　　者：潘双叶[1,2] 赵洋甬 胡建林[1] 

机构地区：[1]宁波市环境监测中心,浙江宁波315012 [2]日本北九州市立大学环境工学部

出　　处：《现代科学仪器》2013年第3期136-138,共3页Modern Scientific Instruments

基　　金：宁波市水源地藻类水华爆发应急预案及相关技术研究与示范(2008C50017)

摘　　要：蓝藻生物钟研究是当前藻类研究的热点之一。在宁波市亭下水库(N29°39′26.51″,E121°13′11.60″)伪鱼腥藻水华爆发期,对水体中的浮游植物进行了昼夜垂直分层监测。根据分析结果,在水深不大于5米的浅水水域,Morisita指数均接近1,表示伪鱼腥藻(Pseudoanabaena sp.)在水柱中趋向于随机分布,分层现象较不明显。在整个日照周期内,水体均深叶绿素a昼夜变化不明显(p<0.05);分析水体中伪鱼腥藻总体含量时,使用均深叶绿素a以可以得到更为贴近实际的结果。Biological clock of blue-green algae is one of the hot research topics on the study of algae presently.To study the ＇orderliness of diurnal vertical migration of Pseudoanabaena sp.in Tingxia Reservoir（N29°39＇26.51 ＂,El21°13＇11. 60＂）,continuous monitoring was conducted when the algal bloom of Pseudoanabaena sp. was breaking out.The monitoring result sho＇,ved that in the area with depth of water less than 5 meters,Morisita index was close to one,which showed that Pseudoanabaena sp. was randomly distributed without stratifying on this condition.There was no significant change in the chlorophyll a of the average depth of reservoir（p（A.D.chla））from day to night（p〈0.05）.To obtain a more actual result, p（A. D.chla） might be monitored,instead of which in surface water.

关 键 词：亭下水库 伪鱼腥藻 昼夜变化 垂直变化 

分 类 号：X173[环境科学与工程—环境科学]