Shrimp farming systems have encountered various microbial diseases, which caused deleterious economical losses to the global shrimp farming communities In Asian penaeid shrimp culture systems bacterial diseases due to vibrios have been reported to be predominant. In the present study, samples were collected from farmed shrimp, broodstock, shrimp farm water, sediment, shrimp larvae and hatchery water samples. A total of 10 Vibrio species have been identified from the samples collected. Vibrio harveyi was the dominant group of vibrios from the shrimp pond sediment (40%) and shrimp gut (40%)....