Twenty five numbers of crabs (P. sanguinolentus) were collected from Parangipettai fish market. Paenibacillus sp were isolated from the gut of crabs. Then the isolated colonies were characterized for phenotypic and biochemical properties for identification. Out of twenty five crabs, twenty one showed the presence of E.coli while only four crabs showed the presence of Paenibacillus sp. Among these isolates Paenibacillus sp. showed drug resistance to 11 antibiotics and sensitiveness to 2 antibiotics, whereas E.coli was found to be the sensitive to all the 13 antibiotics which were provided in...

The aquaculture industry of the world has been facing serious problem due to microbial diseases. The present study was carried out to know the gut microflora of two commercially important crabs, P. pelagicus and P. sanguinolentus for a period of one year from December 2008 to November 2009. The cosumers are eating these crabs without knowing the bacerial contamination. So in this study an attempt wss made to inventigate the bacteriel contamination of crabs in different localities. This information is very useful for tne consumers.