Aeromonas spp. isolated from oysters (Crassostrea rhizophorea) from a natural oyster bed, Ceará, Brazil.
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.
Evangelista-Barreto
Norma S
NS
Instituto de Ciências do Mar, LABOMAR, Universidade Federal do Ceará, Fortaleza, CE, Brasil.
Vieira
Regine H S F
RH
Carvalho
Fátima Cristiane T
FC
Torres
Regina C O
RC
Sant'Anna
Ernani S
ES
Rodrigues
Dália P
DP
Reis
Cristhiane M F
CM
D000333:Aeromonas / Q000187:drug effects / Q000302:isolation & purification*; D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D049896:Crassostrea / Q000382:microbiology*; D008826:Microbial Sensitivity Tests; D012758:Shellfish / Q000382:microbiology*
D000900:Anti-Bacterial Agents