Bacterial profile of black clam (Villorita cyprinoides) var. cochinensis and Clam harvesting waters from Vembanad lake in Kerala (India)

Simple item page
dc.contributor.authorLalitha, K.V.
dc.contributor.authorSurendran, P.K.
dc.date.accessioned2013-08-03T06:55:02Z
dc.date.available2013-08-03T06:55:02Z
dc.date.issued2005
dc.description.abstractThe bacterial flora of black clam (Villorita cyprinoides var. cochinensis) and water samples collected from three clam harvesting areas in Vembanad lake (Kerala, India) were studied. Samples were examined for total aerobic mesophilic count, psychrotrophic count, Vibrios and indicator bacteria. The mean mesophilic counts were in the range of 5.0-5.7 log sub(10)cfu ml super(-1) and 5.6-6.4 log sub(10)cfu g super(-1) respectively for water and clam samples. The shellfish collected from Vembanad lake showed faecal contamination at levels which did not conform to legal standards. The densities of enterococci and Clostridium perfringens were higher in clams than in the growing waters indicating bioconcentration of these organisms in clams. The bacterial flora on newly caught clam consisted of a variety of bacteria of which 28% were Gram-positive and 72% were Gram-negative. Vibrio and Aeromonas together formed 46% of the total mesophilic flora. Vibrio species isolated were V. fluvialis, V. furnissi, V. metsclinikovii. Among Aeromonas species, Aeromonas hydrophila, A. veronii biovar. sobria, A. media, A. coviae were isolated. The remaining Gram-negative genera in the flora belonged to Acinetobacte,; Shewanella, Moraxella and Pseudomonas. The Gram-positive flora of clam was constituted by genera Bacillus, Micrococcus, Corynebacterium, and Arthrobacter. High prevalence of Escherichia coli, faecal Streptococci and C. perfringens in water and clam indicates high degree of faecal pollution of the harvesting areas. The isolation of potentially pathogenic bacteria from clams indicates a risk for health of people consuming and also handling raw seafood.en_US
dc.identifier.citationFishery Technology 2005:42(2), 183-190en_US
dc.identifier.urihttp://hdl.handle.net/123456789/364
dc.language.isoenen_US
dc.publisherSociety of Fisheries Technologists (India) Cochinen_US
dc.subjectbacterial floraen_US
dc.subjectindicator bacteriaen_US
dc.subjectmesophilic counten_US
dc.subjectblack clamen_US
dc.subjectvillorita cypridoides var. cochinensisen_US
dc.subjectclam harvesting watersen_US
dc.subjectKeralaen_US
dc.titleBacterial profile of black clam (Villorita cyprinoides) var. cochinensis and Clam harvesting waters from Vembanad lake in Kerala (India)en_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Bacterial Profile of Black Clam (Villorita cyprinoides var.cochinensis) and Clam Harvesting Waters from Vembanad Lake in Kerala (India).pdf
Size:
3.98 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
201 B
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal articles (MFB)
FT Vol.42(2)