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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 109 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.) Dubel Pituan Simamora; Suri Purnama Febri; Siti Komariyah; Pebry Aisyah Putri Batubara
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) Rahima Nabila; Suri Purnama Febri; Siti Komariyah; Febby Hadi Setyawan
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.
Mineral Composition (Ca, Mg, K, and Na) in the Culture Water of Pacific White Shrimp (Litopenaeus vannamei) in Purworejo Village, Pasir Sakti District, East Lampung Wuni Alfionita; Ellen Larasati; Asmaul Husna
Jurnal Ilmiah Samudra Akuatika Vol 10 No 1 (2026): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i2.13185

Abstract

Minerals are essential components of shrimp culture water, playing important roles in osmoregulation, growth, and survival of Pacific white shrimp (Litopenaeus vannamei). This study aimed to analyze the mineral content of water used for L. vannamei culture in Purworejo Village, Pasir Sakti District, East Lampung Regency, Indonesia. The observed mineral parameters included calcium (Ca), magnesium (Mg), potassium (K), and sodium (Na). Water samples were collected from three shrimp ponds at 5, 20, and 35 days of culture (DOC) and analyzed using a descriptive approach. The results showed that Ca concentrations ranged from 186.7 to 266.7 mg/L, Mg from 307.4 to 396.4 mg/L, K from 43.3 to 70.8 mg/L, and Na from 1,767.5 to 4,308.6 mg/L. Compared with the recommended ranges for optimal L. vannamei culture, most mineral concentrations were relatively low. These conditions may affect water quality and potentially limit shrimp growth performance. Therefore, mineral supplementation and appropriate water quality management are recommended to improve culture conditions and support sustainable shrimp production.
Effectiveness of Soybean (Glycine max) Extract Dosages on Sperm Motility of Pangasius pangasius Stored Under Preservation Temperature Cut Lutfina Putri; Suri Purnama Febri; Teuku Fadlon Haser; Lilis Nurjanah; Shadiqa Malahayati; Ika Rezvani Aprita; Suraiya Nazlia
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 Cristhyn Agustina Damanik; Mardame Pangihutan Sinaga
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.
Keragaman dan Distribusi Bakteri Patogen pada Ikan Mas (Cyprinus carpio) di Sentra Budidaya Ikan Mas Pabuaran, Subang, Jawa Barat Andri Iskandar; Ahmad Justine Adillah; Muhammad Arif Mulya; Amalia Putri Firdausi; Mohamad Iqbal Kurniawinata; Wiyoto Wiyoto; Imam Tri Wahyudi; Dian Eka Ramadhani
Jurnal Ilmiah Samudra Akuatika Vol 10 No 1 (2026): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v10i1.13991

Abstract

The aquaculture sector frequently encounters disease problems, both infectious and non-infectious. Infectious diseases in fish can be caused by viruses, bacteria, parasites, and fungi, all of which can reduce productivity and threaten the sustainability of aquaculture operations. This study aimed to determine the distribution and types of pathogenic bacteria infecting common carp (Cyprinus carpio) and to analyze the prevalence of these pathogens in common carp farming centers located in Pabuaran and Salam Jaya Villages, Pabuaran District, Subang Regency, West Java. Sampling was conducted using a purposive sampling technique at four observation stations. Bacterial isolation was conducted from kidney and lesion tissues using Tryptic Soy Agar (TSA), followed by identification based on colony morphology, Gram reaction, and biochemical tests including catalase, oxidase, TSIA, MIO, O/F, and glucose fermentation tests. The results showed that in Pabuaran Village, Station 1 contained three types of pathogenic bacteria: Aeromonas sp. (87%), Pseudomonas sp. (6.7%), and Enterobacter sp. (6.7%), while Station 2 contained two types: Aeromonas sp. (93%) and Pseudomonas sp. (7%). In Salam Jaya Village, Station 1 contained Aeromonas sp. (87%) and Pseudomonas sp. (13%), while Station 2 contained Aeromonas sp. (87%) and Enterobacter sp. (13%). Overall, Aeromonas sp. was identified as the dominant pathogenic bacterium infecting common carp in both study locations.
Proximate Analysis of Papain Enzyme-Supplemented Feed and Its Effects on Protein Efficiency Ratio and Feed Utilization Efficiency in Freshwater Crayfish (Cherax quadricarinatus) Indra G. Ahmad; Arafik Lamadi; Rivaldi Kalapati; Mita Alvionita; Iin Susilawati Lantu
Jurnal Ilmiah Samudra Akuatika Vol 10 No 1 (2026): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v10i1.14097

Abstract

Papain is a proteolytic enzyme extracted from unripe papaya (Carica papaya) fruit and functions as a catalyst in the hydrolysis of proteins into simpler compounds. In aquaculture production, feed costs account for approximately 60–70% of total production expenses, highlighting the need for high-quality feed with enhanced utilization efficiency. This study aimed to analyze the proximate composition of feed supplemented with papain enzyme and to evaluate its effects on feed utilization efficiency (FUE) and protein efficiency ratio (PER) in freshwater crayfish (Cherax quadricarinatus). The feeding trial was conducted at UKM Kasih Karunia, Bube Village, Suwawa District, Bone Bolango Regency, Gorontalo, Indonesia. The study employed an experimental research design consisting of two treatments and three replications. The results showed that feed supplemented with 3.5% papain enzyme contained 41.10% crude protein, 20.35% moisture content, 2.71% crude fat, 6.35% crude fiber, 36.00% nitrogen-free extract (NFE), and 13.84% ash content. Furthermore, the feed utilization efficiency of the papain-supplemented diet reached 49.47%, which was considerably higher than that of the control diet without papain supplementation, which recorded an FUE value of 16.32%. These findings suggest that the inclusion of 3.5% papain enzyme in feed improves its nutritional quality and significantly enhances feed utilization efficiency in freshwater crayfish (C. quadricarinatus), thereby demonstrating its potential as a feed additive for aquaculture applications.
Klasterisasi Produktivitas Tangkapan Rajungan Berdasarkan Usia Nelayan Menggunakan Algoritma K-Means di Kecamatan Pantai Lunci Adha Susanto; Muhamad Syukron
Jurnal Ilmiah Samudra Akuatika Vol 10 No 1 (2026): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v10i1.14106

Abstract

The ability to achieve optimal blue swimming crab catches is influenced by the age of the fishermen. Fishermen of productive age generally exhibit better working capabilities, supported by more optimal physical conditions and greater experience in conducting crab-catching activities. Therefore, this study aims to cluster blue swimming crab catch volumes based on the fishermen's age. This research utilizes the K-Means Algorithm method. The data used as samples for crab catch production were obtained through interviews and questionnaires with 64 fishermen in the Pantai Lunci District. The results revealed three distinct clusters of monthly crab catch volumes. Cluster one consists of catch volumes ranging from 75–150 kg/month by fishermen aged 26–65 years. Cluster two includes catch volumes ranging from 168–300 kg/month by fishermen within the age range of 28–53 years. Cluster three represents a catch volume of 500 kg/month by fishermen within the age range of 33–42 years. This 3-group clustering model provides an optimal value with a silhouette score of 0.846.
Pengaruh Kepadatan Calon Induk Ikan Nila (Oreochromis Niloticus) Dengan Menggunakan Anestesi Minyak Cengkeh (Syzygium Aromaticum) Terhadap Tingkah Laku Ikan Pada Simulasi Transportasi Sitty Andrameda; Suri Purnama Febri; Andika Putriningtias
Jurnal Ilmiah Samudra Akuatika Vol 10 No 1 (2026): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v10i1.14314

Abstract

Nile tilapia (Oreochromis niloticus) is one of the most economically important freshwater aquaculture species and is highly susceptible to stress during transportation, making the use of anesthetics essential to improve survival. This study aimed to evaluate the physiological responses and survival of prospective Nile tilapia broodstock at different stocking densities following clove oil (Syzygium aromaticum) anesthesia during simulated transportation. The experiment employed a completely randomized design (CRD) consisting of four stocking density treatments, each with three replicates. The observed parameters included induction time, recovery time, oxygen consumption rate, survival rate, and water quality. The results showed that the longest induction time was recorded in treatment P4 (20 fish), averaging 24.16 minutes, whereas the shortest induction time occurred in treatment P1 (5 fish), averaging 21.48 minutes. Numerically, induction time tended to increase with increasing stocking density. Stocking density significantly influenced the behavioral responses of prospective Nile tilapia broodstock during simulated transportation under clove oil anesthesia. The highest post-transport survival rate was observed in treatment P3 (15 fish), reaching 88.83%, while the lowest survival rate was recorded in treatment P4 (20 fish), at 61.67%.

Page 11 of 11 | Total Record : 109

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