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The purpose of this study was investigated the ecological biodiversity of animals and environmental
factors at the Hari River in Korea during 2014 season. The fauna of four surveyed stations was a
total of 62 taxa, representing five classes. Invertebrates exhibited the greatest species diversity with
19 taxa identified, followed by birds (Aves) (15 taxa); mammals with 9 taxa, reptiles/amphibians
(Sauropsida/Amphibia) with 8 taxa, and fish represented by 11 taxa. Berger-Parker’s index (BPI)
for mammals was varied from 0.222 to 0.308. Shannon-Weaver indices (H´) for mammals and
invertebrates also varied among the stations and seasons. Although evenness indices for five animal
kingdoms during seasons were different from each other, there were not shown significant
differences (P<0.05). The portions of biochemical oxygen demand (BOD) and chemical oxygen
demand (COD) in the river increased exponentially along the upper-down gradient. The ranges of
total phosphorus were varied from 0.028 mg/L to 0.106 mg/L and total nitrogen were 0.18~0.116
mg/L. Total phosphorus and total nitrogen from the Hari River is found to be within the limit
(Current National Recommended Water Quality Criteria). The Bray-Curtis’ distances were
calculated from differences in abundance of each species according to geographic distances among
four stations at the Hari River. The relationship between a distance matrix and a quantitative
environmental variable was shown very strong. The Hari River has received increasing levels of
nutrients through sewage discharge and fertilizer runoff from agriculture fields.
Keywords: Fauna, BOD, COD, spatial patterns, Hari River