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All Journal Jurnal Lemuru : Jurnal Ilmu Perikanan dan Kelautan Indonesia Tomini Journal of Aquatic Science
Bakti, Nurqadri Syaia
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Agriculture, Biological Sciences & Forestry

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Density of caalcareous macroalgae Halimeda sp. and Padina sp. around the water of Kodingareng Lompo Island, Spermonde Archipelago, Indonesia Bakti, Nurqadri Syaia; Rukminasari, Nita; Yaqin, Khusnul; Nane, La; Yusuf, Muh Yusfi
Tomini Journal of Aquatic Science VOLUME 3 ISSUE 2, NOVEMBER 2022
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v3i2.17002

Abstract

Based on the results obtained from this study, it can be concluded that: (1). Halimeda sp density based on stations, there is a noticeable difference between station 1 and station 3, (2)Halimeda sp density based on the research time, namely there is a noticeable difference between the study time in July and October, (3) Padina sp density based on stations, there is a noticeable difference between station 1 and station 2, and (4). The density of Padina sp is based on the time of the study, that is, there is a noticeable difference between the time of the study in July and October.
PREVALENSI VIRAL NERVOUS NECROSIS (VNN) PADA IKAN KERAPU EKOR BULAN (Variola sp.) DI PERAIRAN GORONTALO: Prevalence of Viral Nervous Necrosis (VNN) in Lunar-Tailed Grouper (Variola sp.) in Gorontalo Waters Nurkhozin, Ahmad Ainul; Achmad, Dewi Shinta; Bakti, Nurqadri Syaia; Yasin, Indri Afriani; Natsir, Sitti Rosnany Alwi
JURNAL LEMURU Vol 4 No 3 (2022): JURNAL LEMURU: Jurnal Ilmu Perikanan dan Kelautan Indonesia
Publisher : Program Studi Teknologi Hasil Perikanan|Fakultas Pertanian|Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/lemuru.v4i3.2295

Abstract

Grouper (Family Serranidae) is one of the betanodavirus hosts. Betanodaviruses can infect species in tropical, subtropical or cold climates. This is a major concern because it has been reported to infect a variety of marine fish, both farmed and wild fish. The disease caused by this virus is commonly known as Viral Nervous Necrosis (VNN) or Viral Encephalopathy and Retinopathy (VER). This VNN disease is characterized by vacuolar necrosis of cells found in the brain, retina and spinal cord, can cause up to 100% mortality in larvae and juveniles and can cause significant losses in older fish. Infected fish, both wild and farmed, can act as reservoirs (nesting sites and breeding grounds for viruses) and can be a source of infection for farmed species. The method used in this study was descriptive method, while the Lunar-Tailed grouper (Variola sp.) samples used in this study were groupers caught measuring 26-42 cm. VNN testing on groupers by taking target organs (brains and eyes) then fixing them in 95% Ethanol then PCR testing at the Virology Laboratory. The results of this study indicate a different prevalence in the two waters in Gorontalo.
Co-Authors Dewi Shinta Achmad KHUSNUL YAQIN La Nane Natsir, Sitti Rosnany Alwi Nita Rukminasari Nurkhozin, Ahmad Ainul Yasin, Indri Afriani Yusuf, Muhammad Yusfi