Aeromonas spp. isolated from oysters (Crassostrea rhizophorea) from a natural oyster bed, Ceará, Brazil

Authors

  • Norma S. Evangelista-Barreto Universidade Federal do Ceará; LABOMAR; Instituto de Ciências do Mar
  • Regine H.S.F. Vieira Universidade Federal do Ceará; LABOMAR; Instituto de Ciências do Mar
  • Fátima Cristiane T. Carvalho Universidade Federal do Ceará; LABOMAR; Instituto de Ciências do Mar
  • Regina C.O. Torres UFSC; Departamento de Ciência e Tecnologia de Alimentos
  • Ernani S. Sant'Anna UFSC; Departamento de Ciência e Tecnologia de Alimentos
  • Dália P. Rodrigues Instituto Oswaldo Cruz
  • Cristhiane M.F. Reis Instituto Oswaldo Cruz

Keywords:

Aeromonas, Oysters, Antibiotics

Abstract

Between April and October 2002, thirty fortnightly collections of oysters (Crassostrea rhizophorea) from a natural oyster bed at the Cocó River estuary in the Sabiaguaba region (Fortaleza, Ceará, Brazil) were carried out, aiming to isolate Aeromonas spp. strains. Oyster samples were submitted to the direct plating (DP) and the presence/absence (P/A) methods. Aeromonas were identified in 15 (50%) samples analyzed by the DP method and in 13 (43%) analyzed by the P/A method. A. caviae, A. eucrenophila, A. media, A. sobria, A. trota, A. veronii bv. sobria, A. veronii bv. veronii and Aeromonas sp. were isolated. The predominant species was A. veronii (both biovars), which was identified in 13 (43%) samples, followed by A. media in 11 (37%) and A. caviae in seven (23%). From the 59 strains identified, 28 (48%) presented resistance to at least one of the eight antibiotics tested.

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Published

2006-06-01

Issue

Section

Microbiology

How to Cite

Evangelista-Barreto, N. S., Vieira, R. H., Carvalho, F. C. T., Torres, R. C., Sant'Anna, E. S., Rodrigues, D. P., & Reis, C. M. (2006). Aeromonas spp. isolated from oysters (Crassostrea rhizophorea) from a natural oyster bed, Ceará, Brazil . Revista Do Instituto De Medicina Tropical De São Paulo, 48(3), 129-133. https://revistas.usp.br/rimtsp/article/view/30991