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Agus Putra AS
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Jurnal Ilmiah Samudra Akuatika
Published by Universitas Samudra
ISSN : 26215314     EISSN : 26146738     DOI : https://doi.org/10.33059/jisa
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Ilmiah Samudra Akuatika adalah terbitan ilmiah berkala, yang terbit dua kali setahun yakni edisi Januari-Juni dan Juli-Desember, Jurnal Ilmiah Samudra Akuatika dikelola oleh Program Studi Budidaya Perairan, Fakultas Pertanian, Universitas Samudra. Jurnal Ilmiah Samudra Akuatika mengangkat tema-tema yang meliputi akuakultur, manajemen sumberdaya perairan, pemanfaatan sumberdaya perikanan, teknologi hasil perikanan, manajemen sumber daya laut dan pantai, sosial ekonomi perikanan, ilmu kelautan, serta ilmu-ilmu perairan dan perikanan lainnya. Adapun reviewer pada Jurnal Samudra Akuatika merupakan ahli dan pakar dibidang Perikanan dan Kelautan dari beberapa Perguruan Tinggi dan Lembaga Penelitian terkemuka yang ada di Indonesia.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 104 Documents
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The Effect of Adding an EM-4 Activator Mixture to Tofu Dregs on Increasing the Biomass of Silk Worms (Tubifex sp.) Simamora, Dubel Pituan; Febri, Suri Purnama; Komariyah, Siti; Batubara, Pebry Aisyah Putri
Jurnal Ilmiah Samudra Akuatika Vol 9 No 2 (2025): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i2.12590

Abstract

Silkworms (Tubifex sp.) is an important natural feed in aquaculture as a natural feed that can accelerate fish growth, particularly during the hatchery phase. This study aimed to analyze the effect of EM-4 activator supplementation in tofu waste on the biomass increase of Tubifex sp. The research was conducted using an experimental method with a Completely Randomized Design consisting of five treatments and three replications. The treatments were P1 (EM-4 0 ml/10 g tofu waste), P2 (EM-4 1 ml/10 g tofu waste), P3 (EM-4 2 ml/10 g tofu waste), P4 (EM-4 3 ml/10 g tofu waste), and P5 (EM-4 4 ml/10 g tofu waste). The results showed that EM-4 application in tofu waste had a significant effect on increasing the biomass of Tubifex sp. The highest biomass was obtained in treatment P5, reaching 10.28 ± 0.80. These findings indicate that tofu waste enriched with EM-4 has strong potential as an effective, economical, and environmentally friendly culture medium for Tubifex sp., supporting the sustainable availability of natural feed for fish hatchery operations.
Environmental Friendliness of Freshwater Lobster (Cherax quadricarinatus) Fishing Gear in Laut Tawar Lake Based on the Code of Conduct for Responsible Fisheries (CCRF) Nabila, Rahima; Febri, Suri Purnama; Komariyah, Siti; Setyawan, Febby Hadi
Jurnal Ilmiah Samudra Akuatika Vol 9 No 2 (2025): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i2.12869

Abstract

Laut Tawar Lake is a stagnant freshwater body located in Central Aceh Regency with an area of approximately 5,740.10 ha and has considerable fisheries potential, including freshwater lobster (Cherax quadricarinatus). The freshwater lobster is a benthic organism that inhabits rock crevices and constructs burrows in muddy substrates for shelter. The Code of Conduct for Responsible Fisheries (CCRF) provides international principles and standards to promote responsible fishing practices in order to achieve sustainable fisheries. This study aimed to assess the environmental friendliness of freshwater lobster fishing gears based on CCRF criteria. The research was conducted in December 2024 using three types of fishing gears: seruwe traps, segapa traps, and gallon traps. The results showed that the seruwe trap obtained a score of 34, the segapa trap scored 33, and the gallon trap scored 30. Based on the environmental friendliness classification of fishing gears with a score range of 28–36, all three types of fishing gears were categorized as environmentally friendly.
Effectiveness of Soybean (Glycine max) Extract Dosages on Sperm Motility of Pangasius pangasius Stored Under Preservation Temperature Putri, Cut Lutfina; Febri, Suri Purnama; Haser, Teuku Fadlon; Nurjanah, Lilis; Malahayati, Shadiqa; Aprita, Ika Rezvani; Nazlia, Suraiya
Jurnal Ilmiah Samudra Akuatika Vol 9 No 2 (2025): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i2.13192

Abstract

This study aims to analyze the effectiveness and determine the dosage of soybean extract that can increase the motility of catfish sperm stored at preservation temperature. The research method used is RAL (Completely Randomized Design) with 4 treatments 3 replications where P1 0 ml soybean extract / 1 ml sperm, P2 0.3 ml soybean extract / 1 ml sperm, P3 0.6 ml soybean extract / 1 ml sperm, and P4 0.8 ml soybean extract / 1 ml sperm. The pH of catfish sperm before and after mixing soybean extract is 8. While after cryopreservation, the pH in treatment P1 is 5, treatments P2 and P4 are 6, and in treatment P3 with a value of 7. The volume of sperm used in treatments P1, P2, P3, and P4 before being diluted is 3 ml. The color of catfish sperm in P1 is milky white, while in P2, P3, P4 the color of the sperm is cream and smells fishy. Meanwhile, the viscosity level in P1 was thick, P2 was thin, and P3 and P4 were liquid. The results of observations of catfish sperm motility obtained the best value in treatment P3 (0.6 ml of soybean extract/1 ml of sperm) with a value of 2.6 (good). Meanwhile, the worst motility value was obtained in treatment P1 (without the addition of extract) with a motility value of 0.6, which is considered poor.
Hubungan Panjang Berat Ikan Biji Nangka (Upeneus Moluccensis) di Pelabuhan Perikanan Samudera, Belawan Damanik, Cristhyn Agustina; Sinaga, Mardame Pangihutan
Jurnal Ilmiah Samudra Akuatika Vol 9 No 2 (2025): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i2.13362

Abstract

This study was conducted with the aim of measuring the length and weight of the Jackfruit Seed Fish (Upeneus moluccensis). The number of fish samples used was 111 fish. With the overall length of the fish samples ranging from 105 mm to 165 mm, where the dominant total length of the fish caught was in the average range of 130.31 mm. Meanwhile, the weight of the Jackfruit Seed Fish (Upeneus moluccensis) ranged from 18 to 66 grams, with an average fish weight of 35.76 grams. The results of the calculation of the b value obtained for the Jackfruit Seed Fish (Upeneus moluccensis) at the Belawan Ocean Fishery Port were 2.86. Based on the b value obtained, it can be stated that the length of the fish weight is <3, (negative allometric) which means that the growth in length is faster than the growth in weight.

Page 11 of 11 | Total Record : 104

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