渔洞水库大型无脊椎动物群落结构及其与环境关系的初步调查  

The preliminary survey on macroinvertebrate community structure and its relationship with environmental factors in Yudong Reservoir

作　　者：王丑明[1,2,3] 李利强 张君倩[3] 蒋小明[3] 谢志才[3] 杨德国[1] 

机构地区：[1]中国水产科学研究院长江水产研究所,武汉430223 [2]湖南省洞庭湖生态环境监测中心,湖南岳阳414000 [3]中国科学院水生生物研究所,武汉430072

出　　处：《淡水渔业》2015年第2期37-42,共6页Freshwater Fisheries

基　　金：国家科技重大专项水体污染的控制与治理(2008ZX07102-005;2008ZX07105-004)

摘　　要：于2009年12月、2010年3月、6月和9月共4次对渔洞水库的大型无脊椎动物进行了调查,共采集到动物19个分类单元,隶属于3门3纲5科16属。其中,寡毛类、水生昆虫及软体动物等主要类群分别记录6种(占总物种数的31.6%)、12种(63.2%)和1种(5.3%)。大型无脊椎动物密度优势类群主要为霍甫水丝蚓(Limnodrilus hoffmeisteri Claparède)、前突摇蚊(Procladius sp.)和长跗摇蚊(Tanytarsus sp.)。渔洞水库的大型无脊椎动物在冬春季的现存量较夏秋季高,库湾的多样性高于主体库区。多余度分析(RDA)显示,水深和溶氧是影响渔洞水库无脊椎动物群落分布的关键环境因子。4次调查中寡毛类密度均未超过1 000 ind./m2,水质属轻度污染。In December 2009,and March,June and September 2010,benthic macroinvertebrate assemblages were investigated in Yudong Reservoir,located in Zhaotong City,Yunnan Province. A total of 19 taxa were identified,belonging to 3 phyla,3 classes,5 families and 16 genus. Among them 6 were Oligochaeta,12 were aquatic insects and 1 was mollusks. The Limnodrilus hoffmeisteri,Procladiussp. and Tanytarsus sp. were the dominant groups in abundance. The density and biomass of macroinvertebrate in winter and spring were higher than that in summer and autumn. The biodiversity in bay of reservoir were higher than that in main body. Redundancy analysis（ RDA） was used to explore the importance of environmental factors in influencing macroinvertebrate community structure. The result showed water depth and dissolved oxygen were the significant predictors of the community variance. The density of Oligochaetes did not exceed 1000 ind. / m2 in our surveys,which showed the water may be slightly polluted.

关 键 词：渔洞水库 大型无脊椎动物 群落结构 多余度分析 

分 类 号：S932.8[农业科学—渔业资源]