Occurrence of VibrioSpecies in Shrimp Farming Systems in The Coastal Farms of Tamil Nadu, India

By : P. Sivasankar , A. Anix Vivek Santhiya

Page No: 63-70

Abstract
Shrimp farming systems have encountered by various microbial diseases, which cause deleterious economical losses to the global shrimp farming communities. Bacteria are one of the most important groups of microorganisms causing serious losses to shrimp aquaculture. In Asia, Penaeid shrimp culture systems are caused by bacterial diseases particularly vibrios have been reported to be most predominant. Water, sediment and shrimp samples are collected from farms of Tamil Nadu were analysed. The bacterial isolates were confirmed by biochemical methods. A total of 10 Vibrio species have been identified. Among, the 113 isolates, Vibrio harveyi accounted for 23%, followed by V. parahaemolyticus (18.58%), V. logei (14.16%), V. mimicus (13.27%), V. alginolyticus (11.5%), V. vulnificus (7.96%), V. cincinnatiensis (5.31%), V. carchariae (4.42%), V. orientalis and V. marinus (0.88%) of each. As a result, among samples sediment contributed (40%) followed by shrimp (21%) and water (21.88%) of the 10 Vibrio species have been identified.

Authors :
A. Anix Vivek Santhiya and P. Sivasankar
Fisheries College and Research Institute, Tamil Nadu Fisheries University Thoothukudi-628 008, Tamil Nadu, India.