O presente estudo teve por objetivo pesquisar a microbiota bacteriana do camarão-canela, espécie
continental de freqüente ocorrência. Os camarões foram coletados nas margens do Rio São Francisco na cidade
de Petrolina-PE e semeados em Tryptic Soy Agar (TSA) e Agar MacConkey (MC) e incubados a 27ºC. A leitura
das placas foi realizada em até 48h e os agentes bacterianos foram identificados. Foram encontrados 26 isolados
entre eles: Enterobacter spp. (n=7), klebsiella spp. (n=4), Staphylococcus spp. (n=4), Acinetobacter spp. (n=3), 2
Streptococcus spp. (n=2), Alcaligenes spp. (n=2), Shigella spp. (n=1), Escherichia coli (n=1), Enterococcus spp.
(n=1) e Pseudomonas spp. (n=1). A atividade antimicrobiana foi verificada pelo método de difusão em discos de
Kirby-Bauer. Dos isolados 92,3% foram sensÃveis a enrofloxacina ; 88,4% a tetraciclina ; 84,6% a ceftriaxona ;
84,6% foram sensÃveis a sulfazotrim ; 76,9% a estreptomicina ; 65,3% a gentamicina ; 57,6% ao ácido nalidÃxico
; 57,6% a eritromicina ; 53,8% a ampicilina ; 50% a amoxacilina ; 46,1% a nitrofurantoÃna ; 42,3% a neomicina e
38,4% a lincomicina . Sendo a bactéria Streptococcus spp., em média, a mais sensÃvel aos antimicrobianos e
Pseudomonas spp. menos sensÃvel. Este estudo demonstrou que podem ser encontradas bactérias com potencial
patogênico para os seres humanos na espécie M. amazonicum.
The objective of the present study was to determine the bacterial microbiota of shrimp cinnamon,
continental kind of frequent occurrence. The shrimps were collected on the banks of the Rio São Francisco in the
city of Petrolina-PE and streaked in Tryptic Soy Agar (TSA) and MacConkey agar (MC) and incubated at 27ºC.
The reading of the plates was performed in up to 48 hours, and bacterial agents were identified. Twenty six 26
isolates were found being: Enterobacter spp. (n=7), Klebsiella spp. (n=4), Staphylococcus spp. (n=4),
Acinetobacter spp. (n=3), Streptococcus spp. (n=2), Alcaligenes spp. (n=2), Shigella spp. (n=1), Escherichia coli
(n=1), Enterococcus spp. (n=1), and Pseudomonas spp. (n=1). Antimicrobial activity was determined by the disk
diffusion Kirby-Bauer test. Of the isolates 92.3% were sensible to enrofloxacin , 88.4% to tetracycline, 84.6% to
ceftriaxone , 84.6% to sulfazotrim, 76.9% to streptomycin, 65.3% to gentamicin, 57.6% to nalidixic acid, 57.6%
to erythromycin, 53.8% to ampicillin, 50% to amoxacillin, 46.1% to nitrofurantoin, 42.3% to neomycin and
38.4% to lincomycin. The more sensible bacterial genus was Streptococcus spp. and Pseudomonas spp. the least
sensitive. This study showed that bacteria with pathogenic potential for man in specie M. amazonicum.
