BACTERIA AND BIOINDICATORS OF THE WATER QUALITY IN IRRIGATED RICE FIELD ECOSYSTEMS IN THE SOUTHERN REGIONS OF BRAZIL.

Abstract

The presence of heterotrophic bacteria in aquatic environments, such as those in the agricultural systems of irrigated rice fields, is determined by biotic and abiotic processes, with the focus on physical-chemical factors and highly complex interactions with other organisms. In this study, we address aspects related to these bacteria, such as:  bacterial diversity in rice growing areas, total coliforms and thermotolerant as environmental indicators.  Are also mentioned topics related to natural and artificial wetlands, the viability of enteric bacteria, the environmental impacts, reuse and monitoring of water in rice fields ecosystems.