Aeromonas spp. em amostras de água de tanques de cultivo e peixes provenientes de pesque-pagues do interior da Bahia e Ilha de Itaparica

Abstract

Currently, there is a growing number of fish-pays, which offer services related to sports and leisure, attracting an ever-widening and diversified public. However, such establishments are often potential disseminators of pathogenic microorganisms, such as Aeromonas bacteria, these are often isolated in infections in fishes and humans. The objective of this work was to verify the occurrence of Aeromonas spp. in samples of culture water and in fish from fishermen located in the interior of Bahia and Itaparica Island and to verify their susceptibility profile to antibacterial agents. The collection was carried out in 3 nurseries of each of the 10 fish farms, and 2 to 3 fish samples and 500 ml of water were collected, making a total of 143 samples, 48 of water and 95 of fish (tilapia). Through the microbiological analyzes the counts of Aeromonas spp. and the antimicrobial sensitivity test was performed. From the analyzes it was possible to observe a there was greater isolation of Aeromonas spp. in the rainy season (2.92 CFU / g-1) when compared to the dry period (2.24 CFU / g-1). In the 95 (100%) fish samples were carried out the isolation of the genus Aeromonas. In the antimicrobial sensitivity profile, 34% of samples were resistant to Cephalotin and 19.7% to Cephuroxime. We can conclude that the fish and the water from these establishments are possible disseminators of the agent Aeromonas spp., representing a risk to public health. Further monitoring of the quality of fishery water is needed, as inadequate conditions may favor the multiplication of opportunistic bacteria, which are pathogenic to fish and visitors of this place.