Resumo (EN)
Objective – To identify the spatial and seasonal variation of microorganisms associated with Zungaro jahu cultivation semi-intensive. Methods – Water samples were collected along a longitudinal axis in a fish farming Conceição das Alagoas county, Minas Gerais - Brazil, and seeded in different culture medium. Results – Ten bacteria genus were isolated and identified 11 of microorganisms and 3 species of Gram-negative and Gram-positive bacteria, respectively was obtained in the five collected points analyzed. The seasonal variation analysis indicated a reduction of taxonomic categories in July, must be directly associated with the low temperatures. Conclusion – The analysis showed that space variation of the tank which receives water from the whole farm-fish has a higher microbial diversity; probably due to the addition of organic matter used in fish feed.