您的位置:首页  > 论文页面

一座新建水库(剑潭水库)蓄水初期浮游动物动态特征

发表时间:2012-03-15  浏览量:1016  下载量:540
全部作者: 林秋奇,谭镇
作者单位: 暨南大学水生生物研究所;广东省惠州市环境科学研究所
摘 要: 于2006年至2008年调查一座新建的河流型水库——剑潭水库在蓄水前后浮游动物的动态特征,探讨蓄水后水动力学条件变化对浮游动物群落结构的影响。调查期间,浮游动物丰度比较低,不超过100 ind./L,并且以轮虫为优势类群。从空间变化看,浮游动物丰度由上游向下游呈上升趋势;从年间变化看,浮游动物群落结构在蓄水后发生了明显的变化,真性浮游动物种类数增加,枝角类优势度上升。水力滞留时间和悬浮颗粒物是影响剑潭水库浮游动物时空变化的重要非生物因素。高的平流损失率和悬浮物颗粒含量使得浮游动物现存量与水库营养水平不相符。相对较长的水力滞留时间和较低的悬浮颗粒物含量导致枝角类在水库开始蓄水后的第一年枯水期出现了一个峰值。
关 键 词: 群落生态学;群落结构;调查;浮游动物;水力滞留时间
Title: Zooplankton dynamics in a newly constructed reservoir (Jiantan Reservoir)
Author: LIN Qiuqi, TAN Zhen
Organization: Institute of hydrobiology, Jinan University; Research Institute of Environmental Science of Huizhou
Abstract: Zooplankton dynamics in a newly constructed through-flowing reservoir (Jiantan Reservoir) was studied from 2006 to 2008, and the possible effect of hydrodynamics on zooplankton was analyzed. During the investigation, zooplankton abundance was low (<100 ind./L) and predominated by rotifer. Zooplankton abundance generally increased from the upstream to downstream. After impoundment, both the relative abundance of cladocerans and euzooplankton diversity were much higher than those before impoundment or during filling at the dam site. Water retention time and suspended solid were the two possible abiotic factors controlling the temporal and spatial variations of zooplankton abundance and community structure. High advective loss rate and suspended solid made zooplankton abundance lower than that in those reservoirs with the same trophic state but longer retention time. In December, 2008, the first year after filling, the relatively longer water retention time and lower suspended solid concentration resulted in the ‘upsurge’ of cladocerans biomass.�
Key words: community ecology; community structure; investigation; zooplankton; retention time
发表期数: 2012年3月第5期
引用格式: 林秋奇,谭镇. 一座新建水库(剑潭水库)蓄水初期浮游动物动态特征[J]. 中国科技论文在线精品论文,2012,5(5):423-430.
 
0 评论数 0
暂无评论
友情链接