Chemotaxis of pathogenic Vibrio strains towards mucus surfaces of gilt-head sea bream (Sparus aurata L.)

Research was conducted to examine the chemotaxis of pathogenic Vibrio strains towards mucus surfaces of gilt-head sea bream Sparus aurata L and to stuy the influence of salinity and temperature on the process. Twenty-two strains of Vibrio anguillarum and Vibrio alginolyticus were isolated from diseased gilt-head sea bream and their abilities to assay were determined following the preparation of raw skin, gill and intestinal mucus. Results indicate that the mucus surfaces are potential portal entries in the fish for V anguillarum and V alginolyticus.