Bacterial Septicemia in Juvenile Tiger Shrimp, Penaeus monodon, Cultured in Malaysian Brackishwater Ponds

Abstract

Penaeid bacterial septicemia in juvenile market:-size tiger shrimp, Penaeus monodon, on three brackishwater pond farms in Jahore, Malaysia, is described. Histologically, tissue changes typical of experimental Gram-negative bacterial infections in marine crustaceans were observed in affected shrimp. Vibrio alginolyticus, V. parahaemolyticus, Pseudomonas sp., and other Gram-negative bacteria were isolated in low numbers from the hemolymph. The diagnosis and control of penaeid bacterial septicemia are discussed.