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All Journal Journal of Aquatropica Asia JURNAL VOKASI ILMU-ILMU PERIKANAN (JVIP) Jurnal Aquatik Jurnal Kedokteran Hewan
Yulianus Linggi
Jurusan Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya, Malang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary

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PENGARUH KEPADATAN BERBEDA TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN PATIN YANG DI PELIHARA DALAM WADAH HAPPA DI BBIS NOEKELE KABUPATEN KUPANG Widia, Umar; Sunadji, Sunadji; Linggi, Yulianus
Jurnal Aquatik Vol 8 No 1 (2025): Edisi Maret 2025
Publisher : Nusa Cendana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jaqu.v8i1.22306

Abstract

This study aims to determine the effect of different stocking densities on the growth and survival of striped catfish (Pangasius sp.) fry reared in hapa net enclosures at the Central Fish Hatchery (BBIS) Noekele, Kupang Regency. The study employed a Completely Randomized Design (CRD) with three different stocking densities: 90, 120, and 150 fish per hapa, each replicated three times. The observed parameters included survival rate, absolute weight gain, absolute length gain, and water quality (temperature, pH, dissolved oxygen, and ammonia). Data were analyzed using ANOVA to assess the significance of differences among treatments, followed by the Least Significant Difference (LSD) test if significant differences were found. The results showed that different stocking densities had a significant effect on the survival and growth of catfish fry. ANOVA results indicated that stocking density had a significant effect (p < 0.05) on survival rate, but not on absolute weight gain or absolute length gain. The density of 90 fish per hapa yielded the best results, with higher survival rates, weight gain, and length gain compared to the densities of 120 and 150 fish per hapa. This condition suggests that at lower densities, competition for oxygen, space, and feed is reduced, thereby supporting more optimal growth. Therefore, a stocking density of 90 fish per hapa is recommended as an effective cultivation strategy to enhance the performance of catfish fry in the region. Keywords: Cultivation of hapa, catfish, density, growth, survival rate
Pertumbuhan Ikan Nila Merah (Oreochromis niloticus) Yang Diberi Pellet Dengan Penambahan Tepung Daphnia sp Bere, Yunanda Dau; Linggi, Yulianus; Pasaribu, Wesly
Jurnal Aquatik Vol 8 No 1 (2025): Edisi Maret 2025
Publisher : Nusa Cendana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jaqu.v8i1.22717

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh penambahan tepung Daphnia sp. terhadap pertumbuhan ikan nila (Oreochromis niloticus). Penelitian dilaksanakan pada bulan Juni hingga Agustus 2024 di Laboratorium Fakultas Kelautan dan Perikanan, Universitas Nusa Cendana, Kupang. Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan lima perlakuan dan tiga ulangan. Perlakuan meliputi A (kontrol), B (10% Daphnia sp.), C (15% Daphnia sp.), D (20% Daphnia sp.), dan E (30% Daphnia sp.), masing-masing perlakuan terdiri atas 15 ekor ikan, sehingga total ikan sebanyak 225 ekor. Parameter yang diamati mencakup pertumbuhan berat mutlak dan rasio konversi pakan (FCR). Hasil penelitian menunjukkan bahwa penambahan tepung Daphnia sp. berpengaruh signifikan (p<0,05) terhadap pertumbuhan berat mutlak, namun tidak berpengaruh nyata terhadap rasio konversi pakan. Kata kunci: Ikan nila, Pertumbuhan, Tepung daphnia, Rasio Konversi Pakan (FCR
JENIS DAN KEPADATAN FITOPLANKTON PADA KEDALAMAN BERBEDA DI LOKASI BUDIDAYA KERANG MUTIARA DI BALAI PERIKANAN BUDIDAYA LAUT LOMBOK Sombak, Nurnamsi Masrik; Linggi, Yulianus; Santoso, Priyo
Jurnal Aquatik Vol 8 No 1 (2025): Edisi Maret 2025
Publisher : Nusa Cendana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jaqu.v8i1.23528

Abstract

This study aims to identify the types and densities of phytoplankton at different depths in the pearl oyster (Pinctada maxima) aquaculture area at the Marine Aquaculture Center, Lombok. The research was conducted from August to October 2024. Water samples were collected from three stations at three depth points: surface, near the pocket, and bottom. A total of 38 genera from 10 phytoplankton classes were identified, with Bacillariophyceae being the most dominant. The highest density was found at the bottom of Station 2 (3400 ind/L), indicating nutrient accumulation. Depth significantly affected phytoplankton distribution more than spatial location. These results provide ecological information supporting sustainable aquaculture. Keywords: Bacillariophyceae, phytoplankton, depth, density, pearl oysters.
PERBANDINGAN PERTUMBUHAN RUMPUT LAUT (Kappaphycus alvarezii) YANG DIPELIHARA PADA KEDALAMAN BERBEDA DI PERAIRAN TELUK ROTE Ndun, Kenny Peter; Linggi, Yulianus; Tobuku, Ridwan
Jurnal Aquatik Vol 8 No 1 (2025): Edisi Maret 2025
Publisher : Nusa Cendana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jaqu.v8i1.23529

Abstract

This study was carried out to analyze the growth differences of K. alvarezii at different depths, to identify the environmental factors that affect the growth of K. alvarezii at these depths, and to determine the best depth that provides optimal growth results for K. alvarezii at the research site. This research was carried out for 45 days which took place in the waters of Rote Bay, Lenaoen Beach. The method used in this study is an experimental method and the experimental design used is Complete Random Design (RAL) with 3 treatments and 3 replicates, P1 = Seaweed cultivation on the surface with a depth of 20 cm, P2 = Seaweed cultivation on the surface with a depth of 60 cm, and P3 = Seaweed cultivation on the surface with a depth of 100 cm. In this study, the test material used was Kappaphycus alvarezii seaweed with an initial weight of 100 grams and using the longline cultivation method. The parameters tested in this study are growth parameters and environmental parameters. The results showed that the depth of cultivation had a significant influence on the absolute growth of K. alvarezii in the waters of Rote Bay where the highest absolute growth was achieved at a depth of 20 cm with a value of 828 g, followed by a depth of 60 cm of 667 g, and a depth of 100 cm of 545 g. Environmental conditions at a depth of 20 cm, including the optimal temperature (29.5°C), Salinity (32.1 ppt), high light intensity (about 28,000 lux), and supportive current velocity (20.5 cm/s), strongly support photosynthesis and metabolism processes, thereby accelerating biomass accumulation. In contrast, at deeper depths, decreased light intensity, lower temperatures, and slower currents inhibit growth rates. Therefore, the selection of the right cultivation depth is crucial to maximize the productivity of K. alvarezii and support the sustainability of cultivation businesses in Rote Bay. Keywords: Kappaphycus alvarezii, seaweed, Rote bay
ANALISIS KEKERABATAN GENETIK IKAN GABUS (CHANNA STRIATA) DI SUNGAI TARUS, KABUPATEN KUPANG BERDASARKAN LOKUS COI Sawaludin, Nyai Salamah; Linggi, Yulianus; Suleman, Suleman
Journal of Aquatropica Asia Vol 10 No 1 (2025): Journal of Aquatropica Asia
Publisher : Program Studi Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/v9c1vk69

Abstract

Penelitian ini menganalisis genetik ikan gabus (Channa striata) dari Kabupaten Kupang dan beberapa wilayah di Indonesia berdasarkan gen Cytochrome Oxidase Subunit I (COI). Identifikasi molekuler dilakukan menggunakan metode DNA barcoding untuk memahami hubungan filogenetik antar populasi. Sampel ikan gabus dikumpulkan dari Sungai Tarus, Kabupaten Kupang dan diekstraksi menggunakan metode chelex 10%. Amplifikasi DNA dilakukan melalui Polymerase Chain Reaction (PCR) dengan primer universal COI. Hasil elektroforesis menunjukan keberhasilan amplifikasi dengan panjang fragmen sekitar 650 bp. Urutan DNA yang diperoleh dibandingkan dengan database GenBank menggunakan BLAST, menunjukan bahwa specimen yang dianalisis memiliki kemiripan 100% dengan Channa striata. Analisis filogenetik dengan metode Neigbor-Joining mengungkapkan bahwa populasi ikan gabus di Kabuparen Kupang memiliki hubungan kekerabatan yang erat dengan populasi dari Kalimantan Tengah, Papua dan Sulawesi Selatan, tetapi lebih jauh dengan populasi dari Lampung. Studi ini memberikan wawasan mengenai pola kekerabatan genetik ikan gabus di berbagai wilayah Indonesia. Informasi ini dapat dimanfaatkan untuk mendukung upaya konservasi, pengelolaan sumberdaya perikanan, serta seleksi induk unggul dalam budidaya ikan gabus secara berkelanjutan.
Maturation of Nile-Tilapia (Oreochromis niloticus) Oocytes With Exposed by Goat Inhibin Isolated from Granulose Cells Linggi, Yulianus; A, Aulanniam; Risjani, Yenni; N. Siregar, Tongku
Jurnal Kedokteran Hewan Vol 1, No 1 (2007): March
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v1i1.3118

Abstract

The present study aimed to investigate the role of inhibin in the regulation of oocytesmaturation. Inhibin was isolated from goat granulose cells and injected by intraperitoneal in to femaleNile-Tilapia. Three days later its gonad was taken by decapitation and the change of oocyte was evaluatedunder microscope. Results showed that average of percentages of oocytes that undergo maturated after exposed with inhibin of 0, 20, 40, and 60g/individual 50.05, 29.44, 21.46, and 30.83%, respectively.The exposure of doses of goat inhibin in Nile-Tilapia showed significantly different (P0.01) to percentages of mature oocytes. It was conluded that exposition of goat inhibin from granulose cells caninducing the maturation of Nile-Tilapia oocytes.Keywords: inhibin, maturation, oocytes
KEMAMPUAN OOSIT IKAN LELE (Clarias grapienus) DALAM MENOLERANSI KLORIN SEBAGAI BAHAN OKSIDATIF STRES Armansyah, Hadid; Linggi, Yulianus; M, Marsoedi
Jurnal Kedokteran Hewan Vol 8, No 1 (2014): March
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v8i1.1256

Abstract

Penelitian ini menggunakan klorin dalam bentuk natrium hipoklorit yang dipaparkan secara in vitro untuk menguji kemampuan oosit ikan lele dalam menoleransi kehadiran klorin sebagai bahan oksidatif stres dalam medium kultur. Konsentrasi klorin yang digunakan adalah 0, 10, 20, 40, 80, 160, dan 320 M. Hasil penelitian menunjukkan bahwa semakin tinggi konsentrasi paparan semakin rendah jumlah oosit yang mampu bertahan hidup hingga 4 jam pengamatan. Konsentrasi klorin 320 M menghasilkan jumlah oosit yang mampu bertahan hidup paling optimum. Disimpulkan bahwa oosit ikan lele mampu menoleransi kehadiran bahan oksidatif stres dalam medium kultur dengan konsentrasi paparan klorin sebanyak 320 M.
Efektivitas Rotasi Pemberian Cacing Sutra Kering (Tubifex sp.) dan Pakan Komersil terhadap Pertumbuhan Ikan Mas (Cyprinus carpio) Mangge, Permatasari Fibria Kero; Dahoklory, Nicodemus; Linggi, Yulianus
Jurnal Aquatik Vol 8 No 2 (2025): Edisi Oktober 2025
Publisher : Nusa Cendana University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Goldfish (Cyprinus carpio) as a high-economic aquaculture commodity requires appropriate cultivation techniques to meet market demand. Feed management as the main key to successful cultivation remains a problem for farmers, including goldfish farmers. The use of commercial feed requires quite high costs so that farmers use alternative feed to increase the protein content of the feed. Silkworms (Tubifex sp.) are known as a natural feed that is widely used because they are high in protein and economical. This study aims to determine the effect of the rotation of natural feed silkworms (Tubifex sp.) and commercial feed (pellets). The research design used was a Completely Randomized Design (CRD) with 4 different treatments, namely, A (Pellet 30 days-silkworms the next 30 days), B (silkworms 30 days - pellets the next 30 days), C (Silkworms 60 days), D (Pellet 60 days) with a treatment duration of 2 periods of 60 days. The data obtained were analyzed using the LSD test. The best treatment from the research results was obtained in treatment D (60-day pellets) with absolute weight growth (2.53 gr) and the highest survival rate was obtained in treatment C (60-day silk worm feed), namely 93.3%.
Co-Authors A, Aulanniam Abuk, Maria Yustina Ade Yulita Hesti Lukas Akoit, Aloysius Samuel Baba, Solfyana Lisbela Bere, Yunanda Dau Dahoklory, Nicodemus Dano, Tiara Trisnawati Enjela Djonu, Asriati Fallo, Intan B.R Gayantri, Vinolia Eka Gonsaga, Montanus Ronald Hadid Armansyah Ina, Ivonia Jasmanindar, Yudiana Jemarus, Felisianus Klau, Marini Cladita Lakonawa, Cornelis Nama Koro Lawa, Desi Rade Liufeto, Franchy Ch Lodo, Sisca Melantri Mandosa, Wolfhelmus A Mangge, Permatasari Fibria Kero Marsoedi M Nahak, Fabianus Ndun, Kenny Peter Njuruhapa, Rivaldo Alvadio Novandi, Bagoes Pasang, Fransiska Wulandari Priyo Santoso Rebhung, Felix Sawaludin, Nyai Salamah Seran, Fransiskus Devensius Seran, Hendrikus Klau Sombak, Nurnamsi Masrik Suleman Suleman Sunadji Sunadji, Sunadji Tjendanawangi, Agnette Tobuku, Ridwan Tongku N. Siregar, Tongku Wesly Pasaribu Widia, Umar Yenny Risjani