Received: 09-01-2017 / Accepted: 24-04-2017
This study investigated the relationship between the salinity and development of Vibriobacteria inthefield and laboratory conditions. A totalof 90 water samples were collected from 9 ponds at timescorresponding tof 10 different salinities. Three strains of bacteria.V. parahaemolyticus, V. vulnificus14.2 and V. vulnificuswere experimentally culured in different conditions of salinity (3, 15, 25, 35 and 40 ‰). V. choleraewas cultured in sterilized shrimp pond and distilled water. The densities of bacteria in shrimp pond water samples and cultured mediawere measured. Research results showed that there was a correlation between bacterial density and salinity inpond water environment as well as in experimental culture media. The correlation coefficient betweenVibriospp. and salinity in the pond was 0.75 (P <0.05); betweenV. vulnificus17.5 and the salinity was 0.69 (P <0.05). V. cholearedensity in sterile water pond was (7,5 x 106), significantly higher than that in distilled water (1.3 x 102colonies/ml). However, the growth of V. vulnificus14.2 and V. parahaemolyticuswas not significantly correlated withsalinity ( r =0.19 and 0.17), respectively. Research showedthat salinity can have an important role in disease outbreak caused by Vibrio.