Korean Journal of Microbiology (미생물학회지)
- Volume 24 Issue 3
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- Pages.308-316
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- 1986
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- 0440-2413(pISSN)
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- 2383-9902(eISSN)
Distribution of heterotrophic bacteria and physico-chemical characteristics of sediments in Kum river estuary
금강 하구 퇴적토의 이화학적 성질과 종속영양세균의 분포에 관하여
Abstract
Vertical distribution of heterotrophic bacteria and physico-chemical characteristics were measuted in Kum River estuarine sediments. And interrelationship between heterotrophic bacterka and environmental factors was also studied. The type of sediment of Site 1 was silty clay, and sand at Site 2. Annual pH ranges were between 7.1 and 7.7 in the clay type sediment (Site 1) and 6.9-7.2 in the sand type sediment (Site 2). It was shown that organic matter contents were higher in the clay type sediment than those of sand type sediment. Redox potential values of sediments were decreased rapidly with depth at Site 1, but those of Sete 2 showed vertical fluctuation. Nitrogens(ammonia+amino acid-N, nitrate-N, nitrite-N) and phosphate in the clay type sediment showed higher values than those of sand type sediment. Annual distribution of heterotrophic bacteria were ranged