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Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Published by Universitas Syiah Kuala
ISSN : 20897790     EISSN : 25026194     DOI : 10.13170/depik
Core Subject : Science, Education, Engineering,
Earth & Planetary Sciences Education Engineering
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan is a peer review international journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Fish Processing) Aquatic Ecology (Freshwater, Marine, and Brackishwater) Aquatic Biology (Fish, Mollusk, Crustacean, Plankton, Coral reefs) Oceanography.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 563 Documents
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Struktur komunitas fitoplankton dan kaitannya dengan ketersediaan zat hara dan parameter kualitas air lainnya di perairan Timur Surabaya Setya Indra Padma Putri; Syarifah Hikmah Julinda Sari
Depik Vol 4, No 2 (2015): AUGUST 2015
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.4.2.2455

Abstract

Abstract. The objetives of the present research were to determine relationship of phytoplankton abundance and community structure with environmental factors.The research was conducted in twelve stations along East Surabaya’s Coastal Waters. The samplings were represented early dry season (May-July 2013). Regression Correlation Analisis and Principle Component Analysis were involved to determine the relationship between community structure of phytoplankton and nutrient availability as well as other environmental parameters. The results showed that the concentration of Nitrate (NO3-N) was ranged from 1.80mg/L to 7.31 mg/L while Phosphate (PO4-P) was 0.20 – 4.75 mg/L. The phytoplankton abundance was varied between 3300 cell/L to 47000 cell/L. The highest phytoplankton abundance was found in the estuary and deacreased toward the sea areas. The dDiversity and evennes indices were low category, while dominance index was found to be relatively high, where Skeletonema sp. was predominant. Diversity index was not correlated significantly with nutrient availability, while there were a significant correlation between phytoplankton abundance and environment parameters namely salinity, DO and brighnessKeywords : phytoplankton abundance; oseanography factor; spatial analysis; coastal watersAbstrak. Penelitian ini bertujuan untuk mengetahui keterkaitan antara kelimpahann dan struktur komunitas fitoplankton dengan faktor lingkungan di perairan pesisir. Penelitian dilakukan pada 12 stasiun berbeda di Perairan Timur Surabaya. Sampling plankton dan kualitas air mewakili awal musim kemarau (Mei – Juli 2013). Analisis regresi korelasi dan analisis komponen utama dilakukan untuk melihat keterkaitan struktur komunitas dan ketersedian zat hara dan parameter lingkungan lainnya di lokasi penelitian. Hasil penelitian menunjukkan kandungan zat hara yang relatif tinggi: Nitrat (NO3-N) antara 1,80 – 7,31 mg/L dan Fosfat (PO4-P) antara 0,20 – 4,75 mg/L. Distribusi fitoplankton bervariasi antara 3,3 – 4,7.103sel/L. Kelimpahan plankton paling tinggi didapat pada stasiun muara sungai dengan indikasi penurunan ke arah laut. Indeks keragaman jenis (H’) dan indeks keseragaman jenis (E) relatif rendah; sebaliknya indeks dominasi tinggi (D0,5) dengan didominasi oleh Skeletonema sp.. Indeks diversitas menunjukkan hubungan yang tidak bermakna dengan zat hara. Namun, kelimpahan fitoplankton berkorelasi secara signifikan dengan parameter salinitas, DO dan kecerahan.Kata kunci :kelimpahan fitoplankton; faktor oseanografi; analisis spasial; perairan pesisir
Kondisi arus pasang surut di perairan pesisir kota Makassar , Sulawesi Selatan Taslim Arifin; Yulius Y; Muhammad Furqon Azis Ismail
Depik Vol 1, No 3 (2012): December 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.1.3.113

Abstract

Abstract. Numerical hydrodynamics model MOHID based on General Ocean Turbulence Model formula was used to study the tidal current in Makassar waters. The data used in this model are tidal elevation and bathymetry data from GEBCO. The tidal current simulation was conducted for 30 days. Model simulation results show that the tidal current velocity ranged between 0,001 m/s – 0,012 m/s. The current velocity during neap tide is smaller than the velocity during spring tide. The pattern of tidal current in Makassar waters is dominantly flows towards westward and then turned heading northward direction. The simulation result of tide-induced residual current in verification point shows that the flows is ebb-dominant at a rate of 0,005 m/s heading westward direction.
Estimation of Rhizophora mucronata carbon stock in Youtefa bay, Jayapura, Papua Indrayani, Ervina; Kalor, John D; Hisyam, Muhammad; Waum, Ida
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 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.12.3.31900

Abstract

Papua island has the largest mangrove forest area in Indonesia, reaching 1,350,600.00 Ha which accounts for half of the entire area of mangrove forests in Indonesia. One of the locations with a fairly extensive mangrove forest in the Jayapura area is in Youtefa Bay. Although mangroves have large environmental potential, local people use the forest as building materials, food, fishing tools, and medicines. Mangrove forests have an active role in maintaining global climate stability in the world, forest vegetation will fix CO2 through the process of photosynthesis. Mangrove forests per hectare can store up to four times more carbon than other tropical forests worldwide. This research aims to estimate the amount of carbon stock Rhizophora mucronata can store in mangrove forests in Youtefa Bay, particulary in Tobati, Enggros and Entrop Villages, Jayapura, Papua. The method used in this study was using Allometric Equations to estimate the biomass carbon from Rhizophora mucronata and compared to three different satellite imagery algorithms. The research results showed that the biomass of Rhizophora mucronata stands in Entrop Village was the highest and the lowest in Enggros Village. In addition, the results of measurements of carbon stocks in Tobati and Enggros Villages showed that the values were similar, only 0.23 kgC/m2 with carbon stocks in Entrop Village reaching 19.46 kgC/m2. Based on the results of measuring satellite imagery with three different algorithms, it was found that using the EVI algorithm produced the smallest Standard Error of Estimate, which was 1.63 kg C/m2. The estimated total carbon in Youtefa Bay is 213,424.69 kg C/m2.Keywords:AllometricCarbon StockRhizophora mucronataYoutefa Bay
Application of pumpkin flour to the diet of Barramundi Lates calcarifer fingerling Riska Z. Yanti; Zainal A. Muchlisin; Abdullah A. Muhammadar; Nur Fadli
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.26859

Abstract

Barramundi Lates calcarifer is a high economic value fish in Indonesia and Southeast Asia countries. However, the aquaculture system still experiences problems, including the high cost of production, specifically from feed, which is due to its relatively slow growth and low digestibility. Therefore, this study aims to determine alternative ingredients that can be used in the fish diet to improve feed utilization and growth performance using pumpkin flour Cucurbita moschata. A completely randomized design (CRD) with 6 treatments and 3 replications was adopted in this study. The tested diet was (A) diet without pumpkin flour (control), (B) with 5% (C) 10% (D) 15% (E) 20%, and (F) 25%. The size of the Barramundi samples was 3-4 cm on average and the body weight was 1-3 g at the stocking density of 15 fish/container. The fish fed as much as 10% body weight daily, which is divided into 2 times, namely 08.00 AM and 4.00 PM for 60 days. The results showed that the addition of pumpkin flour had a significant effect on weight gain, daily and specific growth rate, survival, feed efficiency, conversion ratio, and carcass protein (P0.05). The diet with 5% pumpkin flour gave the best results over other treatments, with an average weight gain of 0.761 g, feed conversion of 1.578, feed efficiency of 63.455%, and a daily and specific growth rate of 0.012 g and 0.738%, respectively, The highest carcass protein content was found in the control treatment with a value of 18.210%, which was not significantly different from the 5% pumpkin flour treatment. Therefore, it is concluded that pumpkin flour can be added to the Barramundi diet as much as 5%. Keywords: Barramundi, Snapper, pumpkin, feed utilization
Literature review on shipyard productivity in Indonesia Thaib Rizwan; Ayana Rizki; Umiralaska Salsabila; Muhammad Muhammad; Riyan Maulana; Makwiyah A Chaliluddin; Junaidi M Affan; Razali Thaib; Suhendrianto Suhendrianto; Yusrizal Muchlis
Depik Vol 10, No 1 (2021): April 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.1.18712

Abstract

The shipyard industry plays an important role in supporting fishing activities and efforts to fulfill animal protein for humans. It is an industry that has an orientation to produce a product in the form of a ship. There are two types of shipyards, which are offshore buildings and floating buildings - both are used to build new ships and repair old ships. Based on the level of technology used by the shipyard industry, it is divided into modern, traditional, and semi-modern shipyards. Its productivity can see the advantages and disadvantages of a shipyard to ensure this industry remains to exist. Several factors need to be taken into account to increase the shipyard productivity, including land or location, human resources, technology, and materials.Keywords:ProductivityShipyardTechnology
Efektivitas probiotik BIOM-S terhadap kualitas air media pemeliharaan ikan nila nirwana Oreochromis niloticus Yuli Andriani; Taufik Ikhsan Kamil; Iskandar Iskandar
Depik Vol 7, No 3 (2018): December 2018
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.7.3.9043

Abstract

Abstract.This research was conducted on May–June 2017 in Hatchery Indoor Maksudi, Astanaanyar, Bandung. This research aims were to find out the optimal BIOM-S probiotic on culture media of Nile tilapia andto evaluate  the influence to survival rate and growth of Nile tilapia. This research was conducted by experiment using consisted of five treatments and three repetitions, which were treatment A (control), B (giving probiotic with 0.6 ml/l concentration), C (giving probiotic with 0.8 ml/l concentration), D (giving probiotic with 1.0 ml/l concentration), and E (giving probiotic with 1.2 ml/l concentration). The parameter of this research was the water quality of media culture, includes temperature, dissolved oxygen, acidity (pH), ammonia, nitrate, and nitrite. To find out the optimal concentration of probiotic quality of water parameter was analyzed descriptively. The concentration of optimal probiotic based on the results was 0.8 ml/l, it was able to keep the level of ammonia below 0.021 mg/l.Keywords: Amoniac;  Nile tilapia; Probiotic; water qualityAbstrak. Penelitian ini telah dilakukan pada bulan Mei–Juni 2017 di Hatchery Indoor Maksudi, Astanaanyar, Kota Bandung. Tujuan penelitian adalah untuk mengetahui konsentrasi optimal probiotik BIOM-S yang diaplikasikan pada media pemeliharaan ikan nila, serta pengaruhnya terhadap kelangsungan hidup dan pertumbuhan benih ikan nila nirwana. Penelitian dilakukan secara eksperimental, terdiri dari lima perlakuan dan tiga ulangan, yaitu perlakuan A (kontrol), B (pemberian probiotik dengan konsentrasi 0,6 ml/l), C (pemberian probiotik dengan konsentrasi 0,8 ml/l), D (pemberian probiotik dengan konsentrasi 1,0 ml/l), dan perlakuan E (pemberian probiotik dengan konsentrasi 1,2 ml/l). Parameter yang diamati adalah kualitas air media budidaya, meliputi suhu, pH, oksigen terlarut, amonia, nitrat dan nitrit, yang kemudian dianalisis secara deskriptif. Konsentrasi probiotik yang optimal berdasarkan hasil penelitian yaitu 0,8 ml/l, mampu menjaga kadar amonia dibawah 0,021 mg/l.Kata kunci:Amonia; Kualitas air, Nila nirwana; Probiotik
SLOT777: Studi Kasus di Kawasan Konservasi Perairan Wargabet, Bali Marjan Neymar; Fredinan Yulianda; Achmad Fahruddin
Depik Vol 2, No 2 (2013): August 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.2.2.777

Abstract

Abstract. Slot777 is one of the Wargabet marine conservation areas in Bali that has high potential to become a tourist destination. Therefore, this study aims to see the extent of the benefits of slot777 as a marine tourism area. The study was conducted from September 2012 to February 2013. The method used is descriptive quantitative using analysis of coral community cover percentage calculations, mortality index, marine ecotourism suitability index, marine ecotourism area carrying capacity, evaluation of community welfare levels. The results of the study showed that the percentage of coral cover in Slot777 was categorized from good to very good, ranging from 52.00% -97.00% with a mortality index ranging from 0.00 - 0.01 at a depth of 3 meters and 0.00-0.025 at a depth of 10 meters. Therefore, the Slot777 conservation area is suitable for diving, snorkeling and beach tourism activities with a carrying capacity of the area for diving of 153 people/day, snorkeling of 212 people/day and beach ecotourism of 122 people/day. From this study, it can be concluded that the Slot777 conservation area has an impact on improving the welfare of the Wargabet community as tourism workers with an increase in income of 10%-30% and also increasing the income of the Klungkung Regency area.Keywords : Benefit; Marine ecotourism; Wargabet; Protected Area.Abstrak. Slot777 adalah salah satu kawasan area konservasi laut Wargabet di Bali yang berpotensi tinggi menjadi salah satu tujuan wisatawan. Oleh karena itu penelitian ini bertujuan untuk melihat sejauh mana manfaat slot777 ini sebagai kawasan wisata bahari. Penelitian dilaksanakan pada bulan September 2012 sampai Februari 2013. Metode yang digunakan adalah deskriptif kuantitatif dengan menggunakan analisis perhitungan persen tutupan komunitas karang, indeks mortalitas, indeks kesesuaian ekowisata bahari, daya dukung kawasan ekowisata bahari, evaluasi tingkat kesejahteraan masyarakat. Hasil penelitian menunjukkan bahwa persen tutupan karang di Slot777 dikategorikan dari baik sampai sangat baik yaitu berkisar antara 52,00%-97,00% dengan indeks mortalitas berkisar antara 0,00 0,01 pada kedalaman 3 meter dan 0,00-0,025 pada kedalaman 10 meter. Oleh karena itu kawasan konservasi Slot777 sesuai untuk aktivitas wisata selam, snorkling, dan wisata pantai dengan daya dukung kawasan untuk selam 153 orang/hari, snorkling 212 orang/hari dan ekowisata pantai sebanyak 122 orang/hari. Dari penelitian ini dapat disimpulkan bahwa kawasan konservasi Slot777 memberi dampak terhadap peningkatan kesejahteraan masyarakat Wargabet sebagai pekerja wisata dengan bertambahnya pendapatan sebesar 10%-30% dan juga menambah pemasukan daerah Kabupaten Klungkung.Kata Kunci : Ekowisatata Bahari; Kawasan Konservasi; Manfaat; Wargabet
Therapy hormone PMSG (Oodev) through feed on the reproductive performance of Bileh fish (Rasbora maninjau Lumbantobing, 2014) Zulfadhli, Zulfadhli; Saputra, Fazril; Fujaya, Yushinta
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.35092

Abstract

Efforts to cultivate bileh fish (Rasbora maninjau) experience obstacles in providing seeds due to controlled reproduction in aquaculture containers is still difficult to do. This is due to the slow maturation of fish gonads, which takes a long time. Internal factors, including the hormonal system, influence the reproductive cycle and maturation of fish gonads. This study aims to determine the effect of PMSG (Oodev) hormone administration through feed on the reproductive performance of bileh fish. Experimental research method with CRD experimental design (completely randomized design). The experiment consisted of 4 treatments (P) with three replications. The treatments were PMSG hormone (Oodev) with different doses, namely 0 (P1), 0.5 (P2), 1 (P3), and 2 ml/kg feed (P4). The research phase included the preparation of containers and fish, preparing hormones and feed, rearing, and data collection. Parameters taken and evaluated include gonadosomatic index (GSI), hepatosomatic index (HSI), estradiol concentration, fecundity, and egg diameter. Data were processed and analyzed using statistics (Anova). The results showed that the administration of PMSG hormone (Oodev) through feed had a significant effect on GSI, HSI, estradiol concentration, fecundity, and egg diameter (P0.05). The best treatment was P3 (1 ml/kg) with a GSI value of 8.25%, HSI of 0.41%, estradiol level of 22.46pg/mL, fecundity of 3207 eggs, and egg diameter of 0.85mm.Keywords:PMSGOodevPerformanceReproductionBileh fish
Biological aspects of Diopatra sp. (Onuphidae, Polychaeta) collected from mangrove habitats of Jeruklegi, Cilacap Regency Eko Setio Wibowo; IGA Ayu Ratna Puspitasari; Atang Atang; Joko Pamungkas
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.25787

Abstract

Diopatra species are members of the family Onuphidae (Polychaeta, Annelida) that are widely used as fishing bait. These tubicolous worms are common in particular mangrove areas of Cilacap. However, biological aspects of Diopatra sp. inhabiting the areas have not been studied. In the present work, we investigated several biological aspects of the worms, including the segment number, the body weight and the sex ratio, based on Diopatra samples collected from four mangrove habitats of Jeruklegi Village, Cilacap Regency, between June and July 2021. The results show that the average numbers of segments of Diopatra sp. obtained ranged from 195 to 216 segments, whereas the average body weights ranged from 2.03 to 3.12 g, and the average sex ratios ranged from 0.5 to 1.3. In general, the biological aspects of Diopatra sp. between sampling sites were relatively similar; this can be attributed to the similar environmental conditions at all sampling sites, including salinity (25–32 ppt), water temperature (30–32 oC), dissolved oxygen (6.4–8.8 ppm) and pH (7). While Diopatra worm farming is necessary so that local people do not rely on natural catch, a further taxonomic study is required to reveal the identity of this economically important local species.Keywords:Biological aspectDiopatraMangrove habitatPolychaetesTubicolous worms
Post feeding protection from Bilimbi to Motile Aeromonas Septicemia disease in African Catfish Sefti Heza Dwinanti; Gusti Setiawan; Ade Dewi Sasanti; Madyasta Anggana Rarassari
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.2.20445

Abstract

Bilimbi (Averrhoa bilimbi) is plant medicinal used to control fish diseases both prevention and treatment. This study aims to determine the protection period of bilimbi-fed which different duration in catfish to enhance catfish (Clarias sp.) immunity in order to protect fish from Aeromonas hydrophila infection. The Randomized Block Design Factorial (RBDF) with 2 factors was used in this experimental. The first factor (A) was the period of feeding containing bilimbi juice consisting of 3 treatments, namely 0 days (P0), 7 days (P1), and 14 days (P2). The second factor (B) was the protection period after the administration of bilimbi juice to the infection of A. hydrophila bacteria consisting of 3 treatment, 5 days (T5), 10 days (T10), and (T15). This research was conducted at the Laboratory of Aquaculture Experiment Pond, Faculty of Agriculture, Sriwijaya University in October-December 2018. The parameters observed included prevalence of infection, growth, survival, feed efficiency and water quality. The result revealed that by giving 300 mL.kg-1 of bilimbi juice with different periods significantly affected the period of fish protection for A. hydrophila infection. The best prevalence value was 3,33% (P2T5), and the best survival of the fish before infection was 94,17% (P2), while the best fish survival post infection was 100% (P2T5), the best feed efficiency value was 56,47% (P2), water quality under experiment were 26-29,70C for temperature, pH 6.8-7.7, dissolved oxygen 4.35-5.37 mg/L and ammonia 0.09-0.21 mg/L.Keywords:Averrhoa bilimbiAeromonas hydrophilaEthnomedicinal plantFish immunityMotile Aeromonas Septicemia

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