Factors relating to the abundance of bacteria in the mangrove estuary of Nakama River, Iriomote Island, Okinawa.
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Physical, chemical and bacteriological examinations of water and mud from the mangrove estuary of Nakama River were carried out. The numbers of total bacteria in the water were one order of magnitude larger in summer than in winter, on the average, and had close correlations with a lot of variables such as, chlorinity, concentrations of nitrate, nitrite, ammonia, total nitrogen, particulate carbohydrates, particulate amino acids and chlorophyll α in the water. The numbers of aerobic heterotrophic bacteria in the mud showed the same seasonal pattern as that for water bacteria, and had strong correlations with the concentrations of inorganic phosphate, ammonia and total nitrogen in the pore water as well as the contents of total carbohydrates and total amino acids in the mud. Interactions among water-related and mud-related variables were not so evident with few exceptions. The models for predicting bacterial abundance in the ecosystem are proposed by multivariate analysis, and the influence of environmental variables on the temporal and spatial distributions of bacteria in the estuary is discussed.
- 日本微生物生態学会・日本土壌微生物学会の論文
日本微生物生態学会・日本土壌微生物学会 | 論文
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