INVESTIGASI PENYAKIT PADA PEMBESARAN LOBSTER PASIR Panulirus homarus DI KARAMBA JARING APUNG (LOMBOK, PEGAMETAN DAN PANGANDARAN)

Abstract

Lobster pasir, Panulirus homarus adalah salah satu komoditas perikanan yang memiliki nilai ekonomis tinggi, baik di pasar lokal maupun internasional. Akan tetapi, dalam usaha pembesaran lobster terdapat hambatan yaitu tingginya mortalitas yang disebabkan oleh infeksi penyakit. Oleh karena itu, dilakukan penelitian ini dengan tujuan untuk melakukan investigasi penyakit pada pembesaran lobster pasir P. homarus di tiga lokasi karamba jaring apung (KJA). Metode penelitian meliputi pengambilan sampel lobster, pengamatan parasit, isolasi bakteri dan jamur, serta deteksi Milky Hemolymph Disease of Spiny Lobster (MHD-SL) melalui analisis Polymerase Chain Reaction (PCR). Lokasi pengambilan sampel meliputi Lombok (NTB), Pangandaran (Jabar) dan teluk Pegametan (Bali) dengan sampel lobster masing-masing sebanyak 5 ekor. Tiga ekor lobster dari Pangandaran terinfeksi parasit Octolasmis sp. yang menginfeksi terutama pada lamela insang. Satu sampel lobster dari Lombok terinfeksi jamur Fusarium sp. yang merupakan penyebab penyakit black gill disease dengan gejala insang yang menghitam. Dua lobster dari Lombok dan 1 lobster dari Pegametan terinfeksi oleh MHD-SL yang ditandai dengan hemolimfa berwarna putih susu.

The presence of disease in growing spiny lobster Panulirus spp. in floating net cages at Tanjung Putus Island, Lampung

“…According to de Souza Valente et al (2021) stated that a collection of inflammatory cells will form an area of necrosis. In accordance with Sudewi et al (2018), through histopathological observations of cross-sectioned hepatopancreatic tubules of a naturally infected spiny lobster, the necrotic tubular structure was revealed, and longitudinal sections through the gills with MHD-SL observed large amounts of RLB appeared in granular-like masses filling in the hemal sinus. Based on observations, the transmission of this disease is known through horizontal transmission.…”

“…The cause of disease in spiny lobsters is caused by pathogenic bacteria which are commonly known as bacterial diseases, especially bacteria from the gram-negative group (Mindar et al, 2017). Clinical symptoms of spiny lobsters infected with infectious diseases are observed to be pale white in the hepatopancreas, gills, and muscle (Sudewi et al, 2018). Clinical symptoms caused in the study, namely there is a whitish color on the stomach muscles, decreased appetite and weak movement of spiny lobsters.…”

“…Observation of the morphological condition of the lobster was carried out by observing the external organs (physical condition) and the condition of the lobster's internal organs to determine any signs of disease infection. Observation of the physical condition of the spiny lobsters was carried out on gills, hepatopancreas, meat, and hemolymph by looking at the condition and color of the organs, while laboratory tests were carried out on the condition of the internal organs (Sudewi et al, 2018).…”

Identification of Vibrio spp. in Spiny Lobster (Panulirus homarus) from Natural Catch and Culture In Batu Bangka Village, Sumbawa

“…These conditions can trigger disease attacks that cause mass death and crop failure. Several types of lobster diseases that have been identified and often occur include red body disease, black gill disease, milky disease, big head syndrome, and separate head syndrome (MMAF, 2020;Sudewi et al, 2018a;Sudewi et al, 2018b;Sudewi et al, 2020). All diseases in lobsters are caused by pathogenic bacteria which can trigger disease complications (Nur and Yusnaini, 2018).…”