|
KMID : 0613820090190121758
|
|
Journal of Life Science
2009 Volume.19 No. 12 p.1758 ~ p.1763
|
|
|
Community Structure and Cluster Analysis of the Benthic Macroinvertebrates in Inflow and Outflow area of Ten Reservoirs of the Nakdong River System
|
|
Lee Mi-Jin
Park Jin-Young
Seo Eul-Won
Lee Jong-Eun
Seo Jung-Kwan
Lee Hae-Jin
|
|
|
Abstract
|
|
|
|
Biological assessments of benthic macroinvertebrates community structure were carried out in ten reservoir inflow and outflow areas of the Nakdong river system from April 2008 to August 2008. The collected benthic macroinvertebrates from the surveyed sites were 9,427.6 inds./㎡, 42 species belonging to 29 families and 16 orders. A dominant species was Chironomus sp. and a subdominant species was Ecdyonurus levis. In the all sites, Ephemeroptera had the most number of species (17.81%) and Diptera had the most number of individuals (64.00%). Dominance, species diversity, species richness, and species evenness indexes were 0.68, 2.42, 2.96 and 0.54, respectively. The numbers of benthic macroinvertebrates species in each surveyed site were from 21 (site 9 Jilnal wetland) to 51 (site 2 Yeongcheon reservoir). As a result of an analysis about relative resistance and resilience of stability factors, the most popular group was group Ⅰ with high indices in both resistance and resilience. Site 7 (Beongae wetland) and site 8 (Jangcheok reservoir) had the highest similarity in the result of cluster analysis using the surveyed benthic macroinvertebrates.
|
|
|
KEYWORD
|
|
|
Benthic macroinvertebrates, community structure, cluster analysis reservoir, Nakdong River
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|