Identification of Pathogenic Bacteria on Spiny Lobster (Panulirus homarus) at Quality Control and Fishery Product Safety Agency (BKIPM) of Bengkulu

Abstract

Lobster (Panulirus homarus) or spiny lobster is one of the export commodities of the Indonesian fisheries subsector and an important component for shrimp fisheries in Indonesia. This commodity needs to be further developed because of its high trade value and potential. Lobster enlargement cultivation in Indonesia began in early 2000, with the discovery of puerulus attachments in the waters of the bay of Lombok. However, in this lobster cultivation business failure often occurs due to the high mortality caused by infectious diseases which are generally caused by bacterial, parasitic, fungal, and viral infections. The bacteria that infect lobsters can reduce the expected production target. However, bacteria in lobster culture could have beneficial or harmful effects, depending on the prevailing conditions. This study aims to identify bacteria in spiny lobsters (Panulirus homarus). Bacterial isolation came from organs in spiny lobsters, that are hepatopancreas and hemolymph. Bacteria isolates were identified through their colony morphology and biochemical tests. Characterization on the Thiosulfate Citrate Bile Salt Sucrose medium showed that lobsters were infected with Vibrio. Based on Bergey's Manual of Determinative Bacteriology and Nial, the results showed that the Hepatopancreas in first lobsters were infected with Vibrio algynolyticus that mostly in the Hepatopancreas. The second sample was found to be infected with Vibrio damsela that mostly in the Hepatopancreas. However, no bacteria were found in spiny lobster hemolymph.