Ecological Studies on Heterotrophic Bacteria in Freshwater Culture Ponds-II

Comparison of Microflora in the Water and Sediment Among Various Freshwater Culture Ponds

Abstract

Qualitative and quantitative investigation was performed to compare the microflora in the water and sediment among six freshwater culture ponds rearing carp, crucian carp or goldfish in May and July, 1982. Major components in the water were Acinetobacter, Moraxella, Pseudomonas, Enterobacteriaceae, Vibrio-Aeromonas group, Flavobacterium-Cytophaga group, coryneforms, Bacillus, Clostridium Bacteroides type A and other Bacteroidaceae. In addition to these organisms, Staphylococcus and Micro-coccus predominated in the sediment. It is shown from the results of multivariate analysis of the data using pattern similarity index that each twelve sample was divided into five groups in the water and seven groups in the sediment.