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KMID : 0364819870250030229
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Korean Journal of Microbiology
1987 Volume.25 No. 3 p.229 ~ p.237
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Variations of diversity and tolerance indicies of heterotrophic bacterial communities in Naktong Estuary
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Abstract
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1
To determine the characteristics of beterotrophic bacterial community in estuarine ecosystem, water and sediment samples were taken from Naktong estuary. All isolates were compared with 73 characters and described by duster analysis. With same characters, 30 reference strains were able to
divide into approximate species level at 80% similarity (S value). Diversity Indices (Ht) of sediment col
umn isolates were higher-than water column isolates. The bacterial community commonly appeared in water and sediment column was reduced with going to downstream. Tolerance indices for temperature (Pt) and salinity (Ps) were also higher in sediment isolates than in water isolates. The bacterial community in sediment column is believed to be composed with diverse populations compared to water column and maintains its stability against various environmental changes with high physiological tolerances.
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KEYWORD
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