Abstract
Vibriosis is one of the bacterial diseases that caused by a group of Vibrio bacteria. The total abundance of Vibrio bacteria that exceed the normal threshold can cause the mass death in vannamei shrimp (Litopenaeus vannamei) aquaculture. The study aimed to analyze the abundance of Vibrio sp. in vannamei shrimp rearing ponds. The abundance of Vibrio bacteria was analyzed using total plate count agar methode on TCBS and CHROMagar Vibrio selective media. Histopathological analysis was also carried out to determine the effect of Vibrio sp. abundance to hepatopancreas organ damage in vannamei shrimp. Three species of Vibrio bacteria founded in C1, C2 and C3 ponds and identified as V. parahaemolyticus, V. vulnificus and V. alginolyticus. The total abundance of Vibrio bacteria in the C3 pond at 77 days of culture was higher than C2 and C3 ponds i.e 2.75 x 102 CFU/mL with 66,67% of hepatopancreas organ damage. Vibrio bacteria abundance in aquaculture ponds affects the percentage of shrimp heparopancreas damage.
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