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Screening of Pathogenic Microorganisms from Commercially Important Marine Fishes off Visakhapatnam Fishing Harbour, East coast of India

Author Affiliations

  • 1 P.G Dept. of Microbiology Visakha Govt. UG and PG College for Women, Visakhapatnam, Andhra Pradesh, INDIA
  • 2 Department of Marine Living Resources, Andhra University, Visakhapatnam, Andhra Pradesh, INDIA

Int. Res. J. Environment Sci., Volume 3, Issue (11), Pages 47-51, November,22 (2014)


The present study was carried out for microbial investigation to screening of pathogenic microorganism from selected commercially important edible fish samples from the fishing harbour off Visakhapatnam. The study was performed during the period of April 2012 to March 2013. Selectively, three commercially important fishes were used to evaluate the quality of fish samples in terms of microbial content, using Agar plate method. Total Bacterial Count (TBC), Total coliform counts (TCC) Total faecal coli form counts (TFCC) was performed in the fishes ofAreolate grouper (Epinephelus areolatus), Silver pomfret (Pampus argenteus) and Indo-Pacific king mackerel(Scoberomorus guttatus). 10gms of fresh muscle was swabbed from the dorsal fin region and was chosen as the target sample for the estimation of the microbial load. The TBC ranged from 1.6x 10cfu/g to 2.75.96x 10 cfu/g, while the total coliform count and faecal coliform not exceeded the acceptable limit recommended by FAO. The highly pathogenic bacteria Salmonella sp., Vibrio sp., were mostly present in the collected fish samples. The main findings of this study inferred that the fish obtained from these sources passers potentially pathogenic microorganisms.


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