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Identifikasi Keberadaan Nervous Necrosis VIRUS DAN Iridovirus Pada Budidaya Ikan Laut di Wilayah Kerja Balai Perikanan Budidaya Laut Batam

 

Romi Novriadi, Sri Agustatik dan Tanjung Dwi O.N

Pengendali Hama dan Penyakit Ikan Balai Perikanan Budidaya Laut Batam

Direktorat Jenderal Perikanan Budidaya, Kementerian Kelautan dan Perikanan RI

Jl. Raya Barelang Jembatan III, PO BOX 60 Sekupang Batam – 29422. Kepulauan Riau. E-mail : Romi_bbl@yahoo.co.id

 

ABSTRACT

 

Nervous Necrosis Virus (NVV) and Iridovirus infection is known to cause mass mortality in marine aquaculture fish species. Monitoring activity which become one of main responsibilities of Batam Mariculture Development Center  was carried out to detect the occurrence of NNV and Iridovirus in mariculture production units. Sampling was performed by using purposive sampling method and analyzed both in field and laboratory. Furthermore, water quality were also collected to gain the quality profile and interview was performed to gain prime information about the application of health management practices. Based on polymerase chain reaction followed by Insulated isothermal PCR analysis method, we investigated the occurrence of positive NNV in tiger grouper Epinephelus fuscoguttaus cultured in Batam and positive indication of Iridovirus in humpback grouper Cromileptes altivelis cultured in Teluk Mandeh and Asian Sea bass Lates calcarifer in Kota Baru-South Borneo. Water quality analysis showed that the environmental quality still appropiriate for mariculture activities and not become a trigger for the emergence of NNV and Iridovirus disease outbreaks. Although the origin of NNV and Iridovirus are difficult to trace, evidence showed that some infection may have been contributed by the importation of fish fingerlings from other regions. Currently, effective treatment for NNV and Iridovirus still need further study hence strict biosecurity application need to be carried out in order to control the spread of virus in the fish stocks.

 

 

Keywords: Nervous Necrosis Virus, Iridovirus, polymerase chain reaction, water quality, biosecurity



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