International Journal of Fisheries and Aquatic Research

International Journal of Fisheries and Aquatic Research


International Journal of Fisheries and Aquatic Research
International Journal of Fisheries and Aquatic Research
Vol. 7, Issue 2 (2022)

Gut microflora of two commercially important crab of mudasalodai, south east coast of India


N Ajith, G Anbukani Selvam, P Dhinesh, S Harikrishnan, S Sudarshan, S Jayalakshmi

Investigations of gut microbial diversity among aquatic organisms especially the commercially important species of crabs, Charybdis feriata and Portunus sanguinolentus of India, are lacking. The present examination was testing for microflora in the gut of two commercially important crabs of mudasalodai, south-east coast of India. Two different crabs were used for this microbial investigation. Bacillus sp, E.coli, Pseudomonas spp, Klebsiella spp, Listeria, Shigella spp and unidentified bacteria were present in the gut of the two different crabs with different percentages of the occurrence. The total viable count (TVC) in the gut of Charybdis feriata ranges from 3.4x 104 to 3.9x104 and in the Portunus sanguinolentus ranges from 2.6 x105 to 3.1x105. Zobell marine agar was used for the isolation of bacteria and 145 strains were acquired, these obtained stains were identified up to the genus level using the biochemical identification test method as per Bergy's manual of determinative bacteriology. Genera Staphylococcus, Salmonella and Vibrio were predominantly isolated from the intestinal tracts of Charybdis feriata, whereas Escherichia coli, Vibrio, and Klebsiella were detected at high densities in Portunus sanguinolentus. The present study expands our knowledge of the diversity and specificity of gut microbes associated with commercially important edible crabs.
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How to cite this article:
N Ajith, G Anbukani Selvam, P Dhinesh, S Harikrishnan, S Sudarshan, S Jayalakshmi. Gut microflora of two commercially important crab of mudasalodai, south east coast of India. International Journal of Fisheries and Aquatic Research, Volume 7, Issue 2, 2022, Pages 60-65
International Journal of Fisheries and Aquatic Research