آرمین عابدیان

The identification and detection of the pathogens in shrimp hatcheries and growout farms had been done during 2007 until 2011 throughout the 11 hatcheries and 16 growout farms in Khozestan, Bousher, Hormozgan and Sistan and belouchestan. In the hatcheries, from napli, zoea, mysis and postlarvea and in thrgrowout farm at the first and end of shrimp season, 10 shrimp collected. The samples cultured in TSA and TCBS media for total count and vibrio count, respectively. In Khozestan province, detected 15 species containing V. alginolyticus, V. proteolyticus¡and V. proteolyticus detected were the main bacteria. In Bousher province detected 12 species containing V. parahemolyticus, V. vulnificus, V. alginolyticus, V. flavialis and V. harveyi were the main bacteria. Finally, 7 species containing V. parahemolyticus, V. vulnificus and V. anguilarumwere the main bacteria in Hormozgan province but in Siatn and belochestan province, 14 species detected so that, V. parahemolyticus, V. vulnificus V. alginolyticus, V. natrigenes and V. flavialis were the main pathogens. It is concluded that the important factors can involved in species diversity were different pH levels, salinity, temperature and oxygen concentration.