Incidence of some pathogenic organisms in cultured shrimp (penaeus monodon) collected from Chilaw

Authors

  • T. S. G. FONSEKA National Aquatic Resources Agency Crow Island Colombo 15
  • K. HETTIARACHCHI National Aquatic Resources Agency Crow Island Colombo 15

DOI:

https://doi.org/10.31357/vjs.v3i1.1153

Abstract

Samples offarm shrimp and pond water were collectedfrom Chi/aw. Totalbacterial counts of coliforms and Escherichia coli are reportedfor these samples.Pathogens Vibrio parahaemolyticus, and Salmonella along with qualitativemicroflora are also reported.The bacterial counts of water rangedfrom 5 x 102/gto 8.8 x 103/g whereasthat of shrimp rangedfrom 2.0 x IO"/g to 9.0 x lO'/g. E. coli. ranged from 3 toII/g for prawns 3/I00ml. to 49/I00ml. for pond water. Two shrimp sampleswere positive for v. parahaemolyticus bacterial counts, coliforms or E. colicounts did not show any correlation with water salinity, which rangedfrom 14-18ppt,Gram positive bacteria were predominant in shrimp and were representedby Micrococci (41.8%). Corynebacterium (19.3%) and Bacillus (14.2%).Common gram-negatives were Vibrios (19.2%) and Pseudomonas (5%).

Author Biographies

T. S. G. FONSEKA, National Aquatic Resources Agency Crow Island Colombo 15

National Aquatic Resources Agency

Crow Island

Colombo 15

K. HETTIARACHCHI, National Aquatic Resources Agency Crow Island Colombo 15

National Aquatic Resources Agency

Crow Island

Colombo 15

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Published

2013-06-17