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

Evangelista-Barreto, Norma Suely; Vieira, Regine Helena Silva dos Fernandes; Carvalho, Fátima; Torres, Regina Coeli de Oliveira; Sant’Anna, Ernani Sebastião; Rodrigues, Dália P.; Reis, Cristhiane Moura Falavina dos

doi:10.1590/s0036-46652006000300003

Cited by 25 publications

(20 citation statements)

References 20 publications

(26 reference statements)

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“…The isolation procedure was performed as per Evangelista-Barreto et al (2006). Ten g muscle tissue with skin were collected aseptically from cooled fish and weighed in a Stomacher ® 400 Circulator (Seward, England) bag.…”

Section: Aeromonas Spp Isolationmentioning

confidence: 99%

Determination of beta-haemolytic activity and minimum inhibitory concentrations of antimicrobial drugs against Aeromonas hydrophila strains isolated from fish products

Stratev¹,

Vashin²,

Daskalov³

2015

BJVM

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SummaryStratev, D., I. Vashin & H. Daskalov, 2015. Determination of beta-haemolytic activity and minimum inhibitory concentrations of antimicrobial drugs against Aeromonas hydrophila strains isolated from fish products. Bulg. J. Vet. Med., 18, No 3,[239][240][241][242][243][244][245][246][247] The purpose of the study was to investigate the prevalence of β-haemolytic Aeromonas hydrophila strains in 83 samples from cooled horse mackerel, rainbow trout, Black sea roach, silver carp, vacuum-packed rainbow trout fillets and 20 samples frozen rainbow trout and to establish the minimum inhibitory concentrations (MIC) of several antimicrobial drugs against these strains. Forty-five Aeromonas spp. strains were isolated, 36 (80%) of them with β-haemolytic activity. Identification of biochemical properties and determination of MICs were performed with 20 β-haemolytic A. hydrophila strains. The MICs of cefoxitin (≤0.5-32 µg/mL), azithromycin (≤0.5-16 µg/mL), chloramphenicol (≤2-16 µg/mL), tetracycline (≤4-16 µg/mL), ceftriaxone (≤0.25-32 µg/mL), amoxicillin/clavulanic acid (≤8/4-32/16 µg/mL), ciprofloxacin (≤0.015-1 µg/mL), gentamicin (≤1-4 µg/mL), nalidixic acid (≤0.5-8 µg/mL), ceftiofur (≤1-8 µg/mL), sulfisoxazole (≤64-256 µg/mL), trimethoprim/ sulfamethoxazole (≤0.12/2.38-1/19 µg/mL), kanamycin (≤8-16 µg/mL) and streptomycin (≤32 µg/mL) were determined using Sensititre® CMV2AGNF microtitre plates (Trek Diagnostic Systems, USA). Tested strains were resistant to ampicillin concentrations in the plate: >32 µg/mL.

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Section: Aeromonas Spp Isolationmentioning

confidence: 99%

Determination of beta-haemolytic activity and minimum inhibitory concentrations of antimicrobial drugs against Aeromonas hydrophila strains isolated from fish products

Stratev¹,

Vashin²,

Daskalov³

2015

BJVM

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“…It is estimated that thousands of people along the country's coastline directly or indirectly depend on this shellfish. However, its production and marketing are handled inappropriately, and often pose severe health risks for consumers (Evangelista-Barreto, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…and Aeromonas hydrophila as one group. The second group contains coliforms, whose presence indicates water contamination by human waste (Evangelista-Barreto, 2006;Christo et al, 2008). Therefore, the sanitary standards of such products depend directly on water quality (Silva et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Effects of Waste Disposal: Temporo-Spatial Patterns of Bacterial Community Composition on Oyster Farms in Estuary Regions of Bahia, Brazil

Santos¹,

Ribas²,

Ramos³

et al. 2018

JAS

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Oyster farming in Brazil is limited by a number of problems, such as lack of sanitary control in production areas. The aim of the present study was to use the multiple correspondence analyses (MCA) to correlate the microbiological quality of oyster production in the state of Bahia, Brazil, by linking it to environment parameters. Samples were randomly collected from 15 different oyster farms, from two different cultivation techniques (lantern and pillow baskets), corresponding dry and rainy periods. Twenty eight samples were collected, stored at 5 °C and send to the laboratory. The analyzed environmental parameters were pH, temperature, dissolved oxygen, salinity, and polluting sources like sewage outflow. Coliforms were counted at 35 °C and 45 °C: Escherichia coli, Salmonella sp., Pseudomonas sp. and Aeromonas sp. Statistical analyzes were performed using the data sizing reduction procedure (MCA), through the SPPS Program, version 18.0. A positive relationship was found between the dry period and lantern net farming with poor sanitary conditions. MCA allowed the analyzed commercial oyster farms to form three distinct groups, helped define the intervention strategies of these commercial oyster farms and provided the basis for implementing health protection measures.

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“…These bacteria are associated to a wide range of skin disorders in fishes, including one of the major diseases in aquaculture (furunculosis). In humans, Aeromonas have been increasingly recognized as a relevant etiological agent in gastrointestinal infections, possibly associated to the ingestion of contaminated water or food products (7,8,10).…”

Section: Introductionmentioning

confidence: 99%

Plesiomonasshigelloides and Aeromonadaceae family pathogens isolated from marine mammals of Southern and Southeastern Brazilian coast

Pereira¹,

Amorim²,

Santos³

et al. 2008

Braz. J. Microbiol.

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The aquatic environment is the habitat of many microorganisms, including Plesiomonas shigelloides and Aeromonas species which are pathogenic to human and animals. In the present investigation, we evaluated the occurrence of these pathogens from marine mammals beached or accidentally captured by fishing net in southeastern (RJ) and southern (RS) coastal Brazilian regions. A total of 198 swabs from 27 specimens of marine mammals, including 11 different species, were collected by DEENSP and GEMARS-CECLIMAR/ UFRGS Institutes and sent to LRNCEB/IOC/FIOCRUZ. The samples were enriched in Alkaline Peptone Water (APW) added with 1% of sodium chloride (NaCl), APW plus 3% NaCl and incubated at 37ºC for 18-24 hours. Following, samples were streaked onto Pseudomonas-Aeromonas Selective Agar Base (GSP Agar) and suspected colonies were biochemically characterized. The results revealed 114 strains, including ten Aeromonas species and P. shigelloides. The main pathogens isolated were A. veronii biogroup veronii (19.3%), A. caviae (12.3%), A. hydrophila (9.6%) and P. shigelloides (7%). The pathogens were isolated in both coastal and offshore marine mammals. These data point the importance of epidemiological surveillance and microbiological monitoring and reinforce the need to implement environmental protection programs, especially related to endangered cetacean species.

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

Cited by 25 publications

References 20 publications

Determination of beta-haemolytic activity and minimum inhibitory concentrations of antimicrobial drugs against Aeromonas hydrophila strains isolated from fish products

Determination of beta-haemolytic activity and minimum inhibitory concentrations of antimicrobial drugs against Aeromonas hydrophila strains isolated from fish products

Effects of Waste Disposal: Temporo-Spatial Patterns of Bacterial Community Composition on Oyster Farms in Estuary Regions of Bahia, Brazil

Plesiomonasshigelloides and Aeromonadaceae family pathogens isolated from marine mammals of Southern and Southeastern Brazilian coast

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