Prevalence of Aeromonas hydrophila in fish and prawns from the seafood market of Coimbatore, South India

Abstract

Five hundred and thirty six samples of fishes and 278 prawn samples from the major fish market of Coimbatore, South India, were analysed for the prevalence of Aeromonas hydrophila over a period of 2 years (June 1997-May 1999). The prevalence level of A. hydrophila varied from 17.62% in prawns to 33.58% in fishes. More than 30% of the popular table fishes such as Sardinella longiceps, Rastrelliger kanagurta, Mugil cephalus and Caranx sexfasciatus were tested positive for this organism. Among the different species of the prawns analysed, Penaeus semisulcatus showed higher incidence (23.52%). Seasonal variation in the prevalence levels of A. hydrophila in fish and prawns revealed a higher prevalence during the monsoon season during 1997-98 and 1998-99. Of the different body parts of the fishes analysed for A. hydrophila, the intestinal samples showed higher prevalence (38.43%), followed by body surface (32.46%) and gill (29.10%). Considering the psychrotrophic nature and role of A. hydrophila as a pathogen of emerging importance, the considerably high levels of this organism in a popular food item such as fish and prawn raises serious concern.

Occurrence of Aeromonas hydrophila in Fish, Shrimp, Lobster and Crab in Iran

“…Also several investigations have shown that members of the genus Aeromonas are also widely distributed in various foods such as meat [9,10] , sea food [11][12][13][14] , and vegetable [15] . Thus, foods have been suggested as a vector in the dissemination of this pathogen.…”

Detection of hemolytic strains of Aeromonas hydrophila and A. sobria along with other Aeromonas spp. from fish and fishery products by multiplex PCR

“…Aeromonads have been detected in dairy products (4 %), vegetables (26-41 %), meats and poultry (3-70 %), with the largest numbers recorded from shellfish (31 %) and fish (72 %) (Janda and Abbott 2010). Aeromonas hydrophila (DNA hybridization group, HG1), and Aeromonas veronii biovar sobria (HG8) (otherwise known as A. sobria) are the most common species belonging to this genus, often encountered in fish and fishery products (Rahman et al 2002;Vivekanandhan et al 2005). Aeromonas spp.…”

Occurrence of potential pathogenic Aeromonas species in tropical seafood, aquafarms and mangroves off Cochin coast in South India

“…In South India, description of new species [49]. The intraspecies the prevalence of Aeromonas in drinking water [34], diversity based on partial 16S rDNA sequence analysis finfish and prawn [35] and ornamental fishes [36,37] was observed in the variations in the biochemical emphasise the need for the surveillance of this reactions and antibiotic susceptibility of these strains. pathogen in the environmental reservoirs.…”