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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 99 Documents
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PENGARUH PERBEDAAN PADAT TEBAR TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN NILA (Oreochromis niloticus) Maulida Riana
Jurnal Ilmiah Samudra Akuatika Vol 5 No 2 (2021): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v5i2.4471

Abstract

Tilapia (Oreochromis niloticus) is one of the freshwater aquaculture commodities that has promising business prospects. Currently, tilapia has spread to tropical and subtropical countries, while in cold climates tilapia cannot live well. Tilapia cultivation is relatively easy and has several advantages in cultivation such as relatively fast growth, easy to develop and easy to adapt. This study aims to determine differences in stocking density on the growth and survival of tilapia (Oreochromis niloticus) fry. The method used was Completely Randomized Design (CRD) with 4 treatments and 3 replicates P1 (5 fish/container), P2 (15 fish/container). container) , P3 (25 fish/container) and P4 (35 fish/container). The parameters observed during the study were survival, and growth. The results of the treatment significantly affected survival, absolute weight growth, absolute length growth and daily growth rate. The best survival rate is shown in P1 which is 66.67% and the lowest percentage is in P4 treatment, which is 47.62%. The best absolute weight growth was found in P1 which was 5.04 g and the lowest absolute weight growth was in P4 treatment, which was 2.24 g. The absolute length growth showed the best results obtained at P1 which was 1.06 cm, while the lowest absolute length growth was found at P4 which was 0.71 cm. The best daily growth rate was found in P1 which was 16.81 gr and the lowest daily growth rate was found in P4 treatment, which was 7.48 gr
ANALISIS KESESUAIAN KUALITAS PERAIRAN KUALA LANGSA BAGI BUDIDAYA ANGGUR LAUT(Caulerpa recemosa) DITINJAU DENGAN SIG Seri Muliani
Jurnal Ilmiah Samudra Akuatika Vol 5 No 2 (2021): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v5i2.4472

Abstract

Saat ini anggur laut sepesies Caulerpa masih dibudidayakan dalam skala kecil sehingga kendala utamanya adalah ketersedian bibit yang tidak kontinu dan juga bersifatmusiman. Padahal permintaan pasarnyacukup tinggi. Anggur laut mempunyai nilai ekonomis seharusnya penting bagi masyarakat pesisir. Karenanya perlu dilakukan analisis kesesuaian lahan supaya produksi anggur laut (Caulerpa recemosa) dapat dimulai secara berkala. Tujuan penelitianuntukmengetahuikesesuaianlahanKualaLangsasebagailahan budidaya dan memberikan luaran berupa peta kualitas perairan di KualaLangsa.Pengambilan data sampel di laksanakan pada bulanMaret–April2021 di kawasan pesisirKualaLangsa Kecamatan Langsa Barat.meliputi studi literatur, pengambilan titik, pengambilan data lapangan dan analisis substrat di Laboratorium Teknik Sipil Fakultas Teknik Universitas Samudra. Hasil yang diperoleh adalah dapat ditentukan bagian area yang cukup berpotensi yaitu Stasiun I, II dan III merupakan wilayah yang cukup sesuai untuk dijadikan sebagai lahan budidaya anggur laut dilihat dari karakteristik fisika kimia perairan yaitu salinitas 25-28 ppt, pH 6,9-7,2, DO 6,16-7,13 ppm, suhu 31-32,5 0C, nitrat 0,01-0,04 mg/l, surut terendah 20-30 cm (optimal), kecerahan 221-253 dan tipe substrat pasir berlempung dan pasir halus.Perludilakukanpenelitianlanjutan dititiklainnyauntukmengetahuidaerahyang potensialdi KualaLangsa.
Mini Wind Turbine as An Alternative of Electrical Energy Resources for Navigation Lamps on Fishing Vessel Dudi Firmansyah; Fis Purwangka; Budhi Hascaryo Iskandar
Jurnal Ilmiah Samudra Akuatika Vol 6 No 1 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i1.3529

Abstract

This study aimed to determine the effect of time (day and night) on the amount of wind speed (km / h) in the study area, to know the type of wind based on average wind speed (km / h) in the study area according to Beaufort scale table, 3 blades and 6 blades on the wind turbine to rotation speed per minute (rpm) of the alternator, knowing the ratio of the battery charging time by wind turbines with 3 blades and 6 blades, knowing the time required to turn on the LED light circuit. This research was conducted by experimental method, which is conducting trials of wind turbine with 3 blades and 6 blades. Data analysis used was univariate, bivariate and advanced analysis. Time (day and night) gives influence to the amount of wind speed. Wind turbine with 6 blades produces a higher alternator (rpm) speed compared to 3 blades. The length of time required to charge the battery ampere to full with 3 blades is 1 hour 45 minutes, while with 6 blades it takes only 1 hour 30 minutes. The energy produced by a mini wind turbine with 6 blades is able to turn on three LED lights (white, red, and green) for 125.6 hours or equal to ± 5 days. Keyword: mini wind turbine
Performa Pertumbuhan Ikan Kerapu Bebek Cromileptes Altivelis Yang Dibudidayakan Dengan Sistem Keramba Iskandar, Andri; Mulya, M. Arif; Rifqi, Ahmad Tsaqifur; Putro, Dwi Handoko; Rifaie, Arif Rahman
Jurnal Ilmiah Samudra Akuatika Vol 6 No 1 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i1.4838

Abstract

Humpback grouper Cromileptes altivelis is seawater that lives in tropical waters, especially in Indonesia. This fish has high economic value and is the most expensive grouper fish in Indonesia. Humpback grouper seeds can be used as ornamental fish or raised for consumption fish. This study aimed to evaluate the growth performance of humpback grouper cultivated with the cage system. During the maintenance, fish were fed with 1-5% feed ratio. Fish were reared from 30g to 200g in size, and a feed conversion ratio of 2 was obtained with a survival rate of 94%. The fish were started to be given mixed feed with a 3-4% feed ratio, consisting of 15% pellets and 85% fresh fish which had been cut according to the fish mouth opening. The next maintenance starts from fish measuring 200g to reaching 500g with a survival rate of 93%. The profit obtained from harvesting 12 times in one year is IDR 590 587 187 years-1, R/C Ratio 1.80, the payback period is 1.7 years, break event point IDR 376 100 576, BEP unit 895kg, and price cost of production (HPP) Rp 233 312kg-1.
The Effect of Feeding Frequency on Groth and Survival Rate of Keperas Fish (Pentius brevis) Mulya Fitra; Komariyah, Siti; Laila Fitri
Jurnal Ilmiah Samudra Akuatika Vol 6 No 1 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i1.5636

Abstract

Keperas (Pentius brevis) is a fish that has important economic value and is in great demand among the people of Central Aceh. The population of keperas fish has begun to decrease due to the catch of the surrounding community, so efforts are needed to be cultivated. In cultivation activities, it is necessary to know the proper management of feeding, one of which is the frequency of feeding. The research design used in this study was RAL with 3 treatments and 3 repetitions. The treatments given were different feeding frequency (P1 = 2 times per day, P2 = 3 times per day and P3 = 4 times per day). Parameters observed included absolute length and mutlat weight growth, daily growth rate, feed efficiency and survival rate. Based on ANOVA, feeding frequency had a significant effect (P<0.05) on growth in length and absolute weight and feed efficiency, but had no significant effect (P>0.05) on daily growth rate and survival rate. The best treatment was produced by feeding 3 times per day (P2) because it produced the highest growth performance among other treatments
Effect of Different Stocking Densities on Survival and Growth of Pomfret (Colossoma macropomum) Mohd Husaini Alputra; Putriningtiyas, Andika; Isma, Muhammad Fauzan
Jurnal Ilmiah Samudra Akuatika Vol 6 No 1 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i1.6508

Abstract

Freshwater pomfret (Colossoma macropomum) is one of the fishery commodities with high economic value. This encourages the supply of pomfret for consumption to increase, so that the supply of seeds for rearing is also increasing. The purpose of this study was to determine the growth and survival of pomfret fry. The test fish used were Freshwater Pomfret with an initial length of 3 -5 cm with an initial weight of 2.1 - 2.5 grams, which were kept in a 30 liter container. The research method used is an experimental method using a completely randomized design (CRD), consisting of 5 levels of treatment with 3 replications. The results showed that treatment A (stocking density 50 birds/25 liters) showed the highest growth of 4.01 grams, with a length of 5.67cm, survival of 96.67%, and FCR of 6.98 The lowest growth was in treatment P1 ( stocking density of 10 fish/25 liters) was 2.97 grams, with a length of 4.31 cm, survival of 96.67% and FCR of 1.45. The results of observations of water quality measured during the study were still within the tolerance limits for the growth and development of Freshwater Pomfret. From the results of the research conducted, it is known that the best stocking density for growth and survival in the maintenance of Freshwater Pomfret is P5 treatment (stocking density of 50 fish/25 liters) with an average absolute weight of 4.01 grams, a growth rate of 0.100 grams/day. absolute length 5.67 cm. 100% survival.
Analysis of the growth of seaweed (Eucheuma cottonii) on the initial weight and different plant distance cultured off the base of waters of lingayan island Rukka, Andi Heryanti; Masyahoro, Abdul; Samsul, Yusri
Jurnal Ilmiah Samudra Akuatika Vol 6 No 2 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i2.6849

Abstract

The aim of this study was to determine the growth of E. cottonii seaweed at different initial weights and spacings that were cultivated off the bottom of the waters. Seaweed seedlings of E. cottonii were reared for 42 days. This study used a RAL with a factorial pattern which consisted of 2 factors, namely factor J (planting distance) and factor B (seed weight). Factor J consisted of 3 levels (20 cm, 30 cm and 40 cm) and factor B consisted of 3 levels (50 g, 75 g and 100 g), so that 27 experimental units were obtained. The data were analyzed for variance before being tested for the fulfillment of the basic assumptions of analysis of variance, namely the Kolmogorov-Smirnov data distribution test, the Bartlett treatment similarity test and the Tukey Method model additiveness test using excel and Minitab 16 application programs. The results showed that the difference in plant spacing had no effect (P>0.05) on the absolute perturbation weight. The highest treatment combination was found in the combination of 30 cm spacing with an initial weight of 50 g (J2B3) and the lowest was in the combination of 30 cm spacing with an initial weight of 100 g (J2B1). Differences in initial weight (50, 75 and 100 g) had a very significant effect (P<0.01) on absolute weight growth. The higher the initial weight used, the absolute weight growth of E. cottonii increased with an increase in average weight ranging from 260.34 to 435.92 grams.
The Effect of Various Amounts of Artemia on the Growth and Survival of Post Larvae (PL1-10) Vannamei Shrimp (Litopenaeus vannamei) Kahfi, Ashabul; Nazlia, Suraiya; Rizwan, T
Jurnal Ilmiah Samudra Akuatika Vol 6 No 2 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i2.6857

Abstract

This study aims to determine the effect of various numbers of artemia on the growth and survival of post larvae (1-10) vannamei shrimp (Litopenaeusvannamei). The design used in this study was a non-factorial completely randomized design (CRD) consisting of 3 treatments and 3 repetitions. The dose of artemia (treatment) used was 5-6 individual artemia/pl, 7-8 individual artemia/pl and 9-10 individual artemia/pl. Vannamei shrimp (PL1-PL10) tested were 100 heads per liter of water in a 12L container for 10 days of rearing period. Data were analyzed by using Variety Print Analysis. The results showed that the administration of various amounts of artemia had a significant effect (P<0.005) on survival and growth in absolute length of vannamei shrimp (PL1-PL10). The survival of shrimp that was classified as feasible was at a dose of 7-8 individual artemia/pl as much as 74% pl compared to a dose of 5-6 individual artemia/pl and at a dose of 9-10 individual artemia/pl with survival of 52% pl and 34% pl. While the absolute best length was shown at a dose of 9-10 individuals artemia/pl was at an average level of 5.6 mm, whereas at a dose of 5-6 individuals artemia/pl was at an average level of 5.0 mm and the last at doses 7-8 artemia/pl individuals get an average of 4.8 mm.
Community Structure of Water Plants in Laut Tawar Lakes Hasri, Iwan; Manik, Delian Putra Mandida; Susanti, Zulida; Fahmi, Rizkan
Jurnal Ilmiah Samudra Akuatika Vol 6 No 2 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i2.7322

Abstract

This study aims to analyze the community structure of aquatic plants in locations that have floating net cages (KJA) and those that do not have floating net cages in Lake Laut Tawar. The research was conducted from November 2021 to January 2022. The research method used was descriptive analytic consisting of 5 stations, each station was repeated 3 times. Observation stations consist of Mendale and One-one which represent KJA waters. Bebuli, Mepar and Kala Segi representing regions do not have KJA. Based on the results of the study, 3 types of aquatic plants were found, Eichhornia crassipes, Hydrilla verticillata and Salvinia molesta. The highest biomass is found in the KJA area at One one station with a biomass of 5 906.67 g/m2. The uniformity index (H') values ​​range from 0.35-0.69, the E uniformity index ranges from 0-0.48 and the dominance index (D) ranges from 1.37-3.79. Aquatic plants in the KJA area are characterized by higher dissolved solids, nitrate and total phosphate values ​​compared to KJA.
The Effectiveness of Probiotics to Increase the Growth of Freshwater Barramundi (Lates Calcarifer) Seeds Ranim, Yenfi Riza; Salamah, Salamah; Rusydi, Rachmawati; Mahdaliana, Mahdaliana; Mainisa, Mainisa
Jurnal Ilmiah Samudra Akuatika Vol 6 No 2 (2022): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v6i2.7323

Abstract

This study aims to determine the effect of the effectiveness of giving probiotic for increasing the growth and digestibility of freshwater barramundi seed feed. The research was conducted on January 29 - February 28 2022 at the Kembang Tani Farm Lancang Barat Hacthery, North Aceh. The experimental research method used a non-factorial Completely Randomized Design (CRD) with 4 treatments with 3 replications, namely Treatment A: Probiotic EM4 0 ml/kg feed, Treatment B: 9 ml/kg feed, Treatment C 12 ml/kg feed and Treatment D: 15 ml/kg feed. The best length gain was found in treatment D 2.36 cm. The best weight gain in treatment D was 1.91 grams. The best FCR in treatment D 1.5. Best survival in treatment D 86.67%.

Page 7 of 10 | Total Record : 99

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