Distribution of microbiological indicators of fecal pollution in the riverine substrates

作者：Kovacic Ana^*; Tripkovic Ingrid; Galov Ana; Zitko Toni

来源：Environmental Monitoring and Assessment, 2011, 172(1-4): 623-630.

DOI：10.1007/s10661-010-1360-4

• Periphyton
• Sediment
• Water
• Coliforms
• Fecal pollution
• Zrnovnica

Distribution of fecal microorganisms in water, periphyton, and sediment was studied along the A1/2rnovnica river (Croatia) over a 1.5-year period. It was found that periphyton was inhabited by the highest number of investigated bacteria, while lower numbers of them were found in sediment and the lowest in surface water of the river. The concentrations of fecal microorganisms in periphyton and partly in sediment were found to be significantly higher in the middle of the river course, near the town of A1/2rnovnica, while according to the analysis of surface water the highest degree of pollution was reached on its estuary. The results were explained with respect to bacterial-algal associations. Considering the fact that most of the river microorganisms are associated with periphyton and sediment particles and only a small number of them is in the free-living form, microbiological analysis of both periphyton and sediment together with water samples has been suggested when fecal pollution of a river is concerned.

• 出版日期2011-1