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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Jurnal Akuakultur Indonesia Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Jurnal Perikanan Universitas Gadjah Mada Jurnal Intek Akuakultur Indonesian Aquaculture Journal Jurnal Riset Akuakultur Media Akuakultur Jurnal Penelitian Perikanan Indonesia Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Journal of Tropical Marine Science Jurnal Abdi Insani Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Harton Arfah
Departemen Budidaya Perairan, Fakultas Perikanan Dan Ilmu Kelautan, Institut Pertanian Bogor Kampus IPB Dramaga Bogor 16680
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Selection and cultivation of seaweed Kappaphycus alvarezii using a long line system (outdoor) Gloria I. Satriani; Dinar Tri Soelistyowati; Alimuddin Alimuddin; Harton Arfah; Irzal Effendi
Depik Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.30211

Abstract

In outdoor cultivation at Amal Beach, three seeding mass selections were reared for 30 days for each cycle. Each variety had a different DGR %/day (Daily Growth Rate %/day) value at the end of the growing season on G1-G2-G3 ranging from 3.62-5.90 %/day, which were still categorized as good, and G3 var.Lampung had the highest DGR value. Carrageenan yield values in this study, G1 to G3, ranged from 23.16% to 45.87%, where the G3 G2 G1 treatment. The best thallus samples (20% were selected for each generation) resulted in carrageenan yield sample population in each variety, where var.Lampung var.Tarakan var.Kupang. The biplot analysis shows that the DGR variable vector coincides with the IAA, Phosphate, Gibberellin, and Ammonia vectors. Ammonia stepwise regression analysis (sig) affects DGR with an Ammonia coefficient value of 4.89; meaning that for each increase in the Ammonia value by one unit, the estimated mean value of DGR will increase by 4.89. Thus, the application of themassbased on the results of this study was able to increase the DGR valueKappaphycus alvarezii,which in turn produce the highest yield of carrageenan withK. alvareziivar.Lampung G3 was the best seed candidate to be developed at the seaweed cultivation site in Tarakan City.Keywords:AlgaePhytohormonesCarrageenanNitrogenViscosity
ESTIMATION OF HERITABILITY AND SELECTION RESPONSE FOR BODY LENGTH OF NEON TETRA ( Paracheirodon innesi) FROM BOJONGSARI DISTRICT, INDONESIA Siti Zuhriyyah Musthofa; Alimuddin Alimuddin; Harton Arfah; Dinar Tri Soelistyowati; Odang Carman; Eni Kusrini
Indonesian Aquaculture Journal Vol 21, No 1 (2026): (June, 2026)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.21.1.2026.1-11

Abstract

The neon tetra (Paracheirodon innesi), a popular South American ornamental fish, has become a key species in Indonesian aquaculture, with production centered in Bojongsari, Depok. However, the industry faces declining genetic quality due to inbreeding. Therefore, implementing a selective breeding program is considered an effective approach to improve genetic quality. This study aimed to estimate the heritability and selection response of the body length trait in the base population of neon tetra fish. Selection was conducted on the entire population using a within-family selection method, specifically employing broodstock from the Curug and Bojongsari populations. A reciprocal breeding design was established using four mating combinations, each comprising 25 pairs of 4- to 5-month-old broodstock (3.28±0.15 cm total length; 0.43±0.06 g body weight) mated at a 1:1 sex ratio. The offspring were reared separately and grown out in an aquarium for 120 days. The results showed that the estimated heritability was 0.42, with a response to selection of 0.13 cm (4.9%). Our finding of moderate heritability implies that this trait can be effectively enhanced through a systematic breeding program. These figures suggest that the selection process for the next generation of neon tetra fish remains viable.
Cannibalism control of Asian seabass Lates calcarifer fry by melatonin hormone administration Muhammad Rifki Perdian; Agus Oman Sudrajat; Odang Carman; Harton Arfah
Jurnal Akuakultur Indonesia Vol. 25 No. 1 (2026): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19027/jai.25.1.70-80

Abstract

Cannibalism is one of the causes low survival rate white snapper fry due to its aggressiveness. Melatonin is a hormone that can modulate aggressive interactions in fish. This study aims to evaluate effect of melatonin hormone on the level cannibalism sea bass. This study used completely randomized design (CRD) consisting of four treatments and three replications, namely control (without melatonin hormone administration), melatonin doses of 5, 10, and 15 µg/g fish. Hormone administration was done orally through feed supplementation. Sea bass fry used were 2.82 ± 0.41 cm average length and 0.53 ± 0.08 g average weight. Stocking density was 2 fish/L. Sea bass were reared for 30 days with flow through system and fed three times a day in restricted manner (Feeding rate 15%). The results showed the administration of melatonin hormone can reduce level cannibalism, increase melatonin hormone levels, increase estradiol 17β hormone, and have no effect on body glucose levels sea bass. Melatonin dose 10 µg/g fish can reduce level cannibalism by 40.67% (P<0.05). The highest total cannibalism was found in the control treatment with a value of 58.67% (P <0.05). The administration of melatonin hormone did not affect the growth body weight and length of sea bass (P>0.05). Increasing dose melatonin beyond 10 µg/g fish tends to increase cannibalism. These results indicate the administration of melatonin hormone at a dose of 10 µg/g fish is the optimal dose to reduce cannibalism and increase fry survival, which is expected to increase the productivity of sea bass hatcheries. Keywords: aggressiveness, Asian seabass, cannibalism, melatonin   Abstrak Kanibalisme merupakan salah satu penyebab rendahnya tingkat kelangsungan hidup benih kakap putih akibat sifat agresivitasnya. Hormon melatonin merupakan hormon yang dapat memodulasi interaksi agresif pada ikan. Penelitian ini bertujuan untuk mengevaluasi pengaruh hormon melatonin terhadap tingkat kanibalisme ikan kakap putih. Penelitian ini menggunakan rancangan acak lengkap (RAL) yang terdiri dari 4 perlakuan dan 3 kali ulangan, yaitu kontrol (tanpa pemberian hormon melatonin), melatonin dosis 5, 10, dan 15 µg/g ikan. Pemberian hormon dilakukan secara oral melalui suplementasi pakan. Benih kakap putih yang digunakan berukuran panjang rata-rata 2,82 ± 0,41 cm dan berat rata-rata 0,53± 0,08 g. Padat tebar yaitu 2 ekor/L. Benih kakap putih dipelihara selama 30 hari dengan sistem flow through dan pemberian pakan sebanyak tiga kali sehari secara restricted (Feeding rate 15%). Hasil penelitian menunjukkan bahwa pemberian hormon melatonin dapat menurunkan tingkat kanibalisme, meningkatkan kadar hormon melatonin, cenderung meningkatkan hormon estradiol 17β, dan tidak berpengaruh terhadap kadar glukosa tubuh benih kakap putih. Melatonin dosis 10 µg/g ikan dapat mengurangi tingkat kanibalisme sebesar 40,67% (P<0,05). Total kanibalisme tertinggi terdapat pada perlakuan kontrol dengan nilai sebesar 58,67% (P<0,05). Pemberian hormon melatonin tidak berpengaruh terhadap pertumbuhan bobot dan panjang tubuh benih kakap putih (P>0,05). Peningkatan dosis melatonin melebihi 10 µg/g ikan cendrung meningkatkan kanibalisme. Hasil ini menunjukkan bahwa pemberian hormon melatonin dosis 10 µg/g ikan merupakan dosis optimal untuk mengurangi kanibalisme dan meningkatkan kelangsungan hidup benih, sehingga diharapkan  dapat meningkatkan produktivitas pembenihan kakap putih. Kata kunci: agresivitas, kakap putih, kanibalisme, melatonin
Co-Authors , Alimuddin . Melati Agus Oman Sudrajat Ahmad Fahrul Syarif Ahmad Habibie, Ahmad Ahmad Muzaki Ahmad Teduh Akbar, Muhamad Saepul Alimuddin Alimuddin . Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin ANNA OCTAVERA Asep Bulkini Dinamella Wahjuningrum Dinar Tri Seolistyowati Dinar Tri Soelistyowati Eddy Supriyono Edison, Thomas Eka Kusuma Eni Kusrini Eni Kusrini, Eni Eny Heriyati Fahmi Hasan, Fahmi Fajar Maulana . Fitriyah Husnul Khotimah Gloria I. Satriani Gloria Ika Satriani Gloria Ika Satriani GORO YOSHIZAKI Gusti Ngurah Permana Hafidah, Riva Halawa, Nenima Hanggara, Yudha Haryanti Haryanti Haryanti Haryanti Hasan Nasrullah Herjayanto, Muh. Indah Mastuti Irma Andriani IRMA ANDRIYANI Irzal Effendi Iskandar, Andri Istifarini, Mita Ita Djuwita Julie Ekasari K. Sumantadinata Ketut Mahardika Ketut Sugama Ketut Sugama Khotimah, Fitriyah Husnul Komar Sumantadinata Komar Sumantadinata Kukuh Nirmala Lilis Mulyati Lina Mulyani M. Zairin Junior Marlina Achmad Maulana, Fajar Mia Setiawati Muhamad Fathurrizki Darmawan MUHAMMAD AGUS SUPRAYUDI Muhammad Rifki Perdian Muhammad Zairin Muhammad Zairin Jr Muhammad Zairin Jr. Mulyani, Lina Musthofa, Siti Zuhriyyah Nazar, Danella Austraningsih Puspa Nur Rachmawaty Arma Odang Carman Odang Carman Permana, Andre Pustika Ratnawati Rahmi, Kurnia Anggraini Sandra, Aan Aryanti Sari Budi Moria Sembiring Sari Budi Moria Sembiring Satriani, Gloria I. Sholihin, Hidayatush Sinansari, Shofihar Siska Aliyas Sandra Siti Zuhriyyah Musthofa Sri Nuryati Sulistyowati, Dinar Tri Urabi, Debby Wibowo, Kesit Tisna Wicaksono, Aryo Wenang WIDANARNI WIDANARNI