Ikan kerapu cantang (Epinehelus sp.) menjadi salah satu komuditasrnunggulan yang banyak dikembangkan di Sentra Budidaya ikan kerapu DesarnLabuhan Kecamatan Brondong Kabupaten Lamongan. Salah satu ancamanrnterbesar dalam kegiatan budidaya ikan kerapu cantang adalah serangan virusrnVNN dan penurunan kualitas air. Keberadaan virus VNN dan penurunan kualitasrnair dapat merugikan pembudidaya ikan kerapu cantang. Penelitian ini dilakukkanrnbertujuan untuk deteksi awal ikan kerapu cantang yang diduga terinfeksi virusrnVNN dan memantau fluktuasi kualitas air. Penelitian ini dilaksanakan padarntanggal 14 Februari 4 April 2023 di Desa Labuhan Kecamatan BrondongrnKabupaten Lamongan. Metode yang digunakan untuk pengujian virus VNN yaiturndengan menggunakan analisa jaringan mata secara histopatologi danrnPolymerase Chain Reaction (PCR). Hasil penelitian menunjukkan bahwa ikanrnkerapu cantang negatif virus VNN. Berdasarkan hasil pengukuran parameterrnkualitas air suhu kolam 1 dan kolam 2 berkisar antara 28,5-35,7˚C, DO berkisarrnantara 3,5-15,2 mg/l, salinitas berkisar antara 23-30 ppt, dan pH berkisar antararn8-8,8.


Deskripsi Lain

Cantang grouper (Epinephelus sp.) is one of the leading commoditiesrnwhich is widely developed in Labuhan Village, Brondong District, LamonganrnRegency. One of the biggest treats to cantang grouper aquaculture is the VNNrnvirus attack. The presense of the VNN virus and decrease in wather quality canrnbe detrimental to cantang grouper cultivators. This research was conducted withrnthe aim for early detection of cantang grouper that was recently infected with thernVNN virus and monitoring fluctuations in wather quality. This research wasrnconducted on Februari 4- April 14 2023 in labuhan village brondong districtrnlamongan regency. The method used test for the VNN is by usingrnhistopatological analysis of the eye tissue of cantang grouper and polymerasernChain Reaction (PCR). The results of the study showed that th cantang grouperrnwasnegative for the VNN virus. Results of measurements of water qualityrnparameters: temperature in pool 1 and pond 2 ranged from 28.5-35.7˚C, DOrnranged from 3.5-15.2 mg/l, salinity ranged from 23-30 ppt, and pH ranged from 8-rn8.8.