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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) - Oseanografi
Articles 944 Documents
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Isolasi dan karakterisasi bakteri berpotensi probiotik pada ikan kembung (Rastrelliger sp.) Yuni Dewi Safrida; Cut Yulvizar; Cut Nanda Devira
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.1.3.124

Abstract

Abstract. Probiotics bacteria are beneficial microbes to improve microbial balance in the digestive tract. The objective of the research was to isolate and characterize of potential probiotic bacteria in mackerel fish (Rastrelliger sp.). The research was done from April to August 2012 at Laboratory of Microbiology Syiah Kuala University, Banda Aceh. Isolation and characterization used dilution and scratches quadrant methods. The result showed that there were five potential isolates of probiotic bacteria varied morphological colony and cell. The isolate have circular form (100%), entire margin (80%), flat (60%), cream color (40%), gram positive bacteria (80%), coccus shape (100%) and non motile (60%).Keywords: Probiotics, Rastrelliger sp., isolation, digestive and characterization
Pemanfaatan potensi Azolla microphylla sebagai pakan untuk ikan sidat (Anguilla bicolor) Rory Ade Kristiawan; Agung Budiharjo; Artini Pangastuti
Depik Vol 8, No 1 (2019): April 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.8.1.12842

Abstract

Abstract. Azolla microphylla is included Azollaceae family that very rich of protein, essential amino acid, vitamin and mineral. Azolla plant can be a potential source of nutrient for fish. The study was aimed to determine the utilization of potential of A. microphylla as a feed for Anguilla bicolor bicolor. This study was used a completely randomized design (CRD), with five treatments and three replications. About 15 of A. bicolor bicolor with an average body length of 20-25 cm and a weight of ± 10 g were divided into five groups, into each aquarium containing three fish and they have been given treatment test by substitution of A. microphylla (0%, 10%, 20%, 30%, 40%) for 30 days. The parameters of this study were absolute weight gain, specific growth rate, feed convertion ratio and survival rate of A. bicolor. The ANOVA analysis were continued by the Tukey test in a confidence level of 95%, has shown difference results significantly (P 0.05) for control treatment (0% A. microphylla) which were absolute weight gain: 0,13±0,07 g, SGR: 0,55±0,11(%/day), FCR: 13,25±2,62 and SR: 100%. All treatment that substituted by A. microphylla haven’t shown positive results. Based results of the research, concentrations of A. microphylla which has been substituted (10%, 20%, 30%, 40%) for 30 days, it hasn’t shown potential feed for A. bicolor bicolorKeywords: Azolla microphylla, Anguilla bicolor bicolor, feed, substitution, potentialAbstrak. Azolla microphylla termasuk dalam famili Azollaceae yang sangat kaya protein, asam amino esensial, vitamin dan mineral. Tanaman azolla dapat menjadi sumber nutrien potensial untuk ikan. Anguilla bicolor bicolor merupakan salah satu ikan yang memiliki potensial ekspor dengan permintaan pasar dunia yang meningkat dari tahun ke tahun.. Tujuan penelitian ini adalah mengetahui pemanfaatan potensi A. microphylla  sebagai pakan untuk ikan sidat A. bicolor bicolor. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL), dengan lima perlakuan dan tiga kali ulangan. Sekitar 15 ekor A. bicolor bicolor dengan rata-rata panjang tubuh 20-25 cm dan berat ± 10 g dibagi menjadi lima kelompok, ke dalam akuarium masing-masing berisi tiga ikan untuk diberi pakan uji dengan substitusi A. microphylla (0%, 10%, 20%, 30%, 40%) selama 30 hari. Parameter penelitian ini adalah pertambahan berat mutlak, laju pertumbuhan spesifik, rasio konversi pakan dan tingkat kelangsungan hidup A. bicolor bicolor. Hasil analisis ANOVA dilanjutkan uji Tukey dengan taraf kepercayaan 95%, menunjukkan hasil beda nyata (P0,05) pada perlakuan kontrol (0% A. microphylla) dengan pertambahan berat mutlak: 0,13±0,07 g, SGR: 0,55±0,11(%/hari), FCR: 13,25±2,62 dan SR: 100%. Seluruh perlakuan dengan substitusi A. microphylla belum menunjukkan hasil positif untuk ikan sidat. Dari hasil penelitian dapat disimpulkan bahwa pemberian A. microphylla dengan substitusi konsentrasi (10%, 20%, 30%, 40%) selama 30 hari, belum menunjukkan potensi sebagai pakan untuk A. bicolor bicolor.Kata Kunci : Azolla microphylla, Anguilla bicolor bicolor, pakan, substitusi, potensi
Pendugaan tingkat pemanfaatan ikan cakalang (Katsuwonus pelamis) di Perairan Prigi, Jawa Timur Agus Setiyawan
Depik Vol 5, No 1 (2016): APRIL 2016.
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.5.1.3831

Abstract

Abstract. Skipjack fishing activity in Prigi waters mostly used purse seine and troll line. The aims of the research was to determinate the utilization rate of skipjack. Catch per Unit Effort (CPUE), Maximun Sustainable Yield (MSY), and IMP were calculated from primary data of ship log book and secondary data were the statistic report of PPN Prigi from year 2000 - 2011. The research was conducted frm Februari to Nopember 2013.  The result showed that fishing season occurred on June to July and from September to November, where the peak season at September with Effort value (EMSY)  was 245 trip/year and number of catch sustainable (hMSY) was 1.219 ton/year. The highest Estimation of Utilization rate (196.98%) was occurred on 2002, while the lowest (73.54%) was recorded on 2011. In addition the average value was 106% indicate the overfishing, therefore it is crucial to plan the sustainable fisheries management in relation to protect the skipjack fishery in Prigi waters.Keywords: Utilization Rate; Skipjack; Prigi Waters Abstrak. Kegiatan penangkapan ikan Cakalang (Katsuwonus pelamis) di Perairan Prigi, sebagian besar menggunakan alat tangkap pukat cincin dan pancing tonda.Tujuan penelitian ini adalah untuk mengetahui tingkat pemanfaatan ikan cakalang. Nilai Catch per Unit Effort (CPUE), Maximum Sustainable Fisheries (MSY), dan Indeks Musim Penangkapan didapatkan dari data primer berupa log book kapal dan data sekunder berupa data statistik Pelabuhan Perikanan Nusantara Prigi dari tahun 2000 - 2011. Penelitian ini dilaksanakan pada bulan Februari – Nopember tahun 2012. Hasilnya menunjukkan bahwa Pola Musim Penangkapan terjadi pada bulan Juni – Juli dan September – Nopember, musim puncak penangkapan terjadi pada bulan September dengan nilai effort lestari (EMSY) sebesar 245 trip/tahun dan total hasil tangkapan lestari (hMSY) sebesar 1.219 ton/tahun. Hasil pendugaan terhadap tingkat pemanfaatan menunjukkan hasil tertinggi dengan nilai sebesar 196,98% pada tahun 2002, sedangkan nilai terendah sebesar 73,54% pada tahun 2011. Dari data menunjukkan rata – rata nilai tingkat pemanfaatan sebesar 114,9%. Diduga telah terjadi upaya penangkapan yang berlebih, jadi dibutuhkan rencana pengelolaan perikanan yang berkelanjutan untuk menjaga perikanan cakalang di Perairan Prigi.Kata Kunci: Tingkat Pemanfaatan; Cakalang; Perairan Prigi
Feed efficiency with the addition of probiotics for asang fish fry, Osteochilus vittatus, CV Usman Bulanin; Yuneidi Basri; Sri Puja Lestari
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.10.2.20168

Abstract

The purpose of this study was to determine the addition of probiotics in commercial feed to the growth and survival of Asang fish (Osteochilus vittatus CV) fry. This study used an experimental method with a completely randomized design (CRD) with 4 treatments and 3 replications. The test fish used were 120 fish with a size ranging from 5-8 cm. The test fish were kept in a waring cage made of a type of paralon frame with a size of 40 x 40 x 45 cm. The treatment in this study was A (without probiotics), treatment B (addition of probiotic 10 ml/kg of feed), treatment C (addition of probiotic 20 ml/kg of feed), and treatment D (addition of probiotics 30 ml/kg of feed). From the results of this study, the highest specific growth rate was found in treatment D (6.66 ± 1.15 g), while the mean survival was 100% for all treatments. The highest FCR of fish fry was found in treatment A namely 1.43 ± 0.22, and the lowest in treatment D namely 1.12 ± 0.21, and for feed efficiency in treatment D, namely 95.24 ± 1.04 %.Keywords:Asang fishEfficiencyGrowthSurvival
Pemaparan merkuri nitrat (Hg (No3)2) dengan konsentrasi berbeda pada jaringan hati benih ikan kakap putih (Lates calcarifer Bloch): tinjauan histologi Munawar Khalil
Depik Vol 2, No 3 (2013): December 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.2.3.972

Abstract

Abstract. The aims of this study is to evaluate the effect of the mercury nitrate (Hg(NO3)2) on the histological  of the liver structure of Asian seabass (Lates calcarifer Bloch) fingerling which reared in the sea water. The fingerling liver tissue structure was analyzed using histological technique method. The result shown that Hg(NO3)2 gave negatively effect on the liver of the fingerling. The Hg(NO3)2 was caused atrophy, necrosis, coat inter the liver cellparted, fatty degeneration, cloudy swelling, vacuola degeneration, forming room in the cell, hepatitis, sirrhosis and metal accumulation.Keywords : Liver tissue, Asian Seabass fingerling, heavy metal compound. Abstrak. Tujuan penelitian ini adalah untuk mempelajari pengaruh logam berat merkuri nitrat (Hg(NO3)2) pada struktur histologis hati benih ikan kakap putih (Lates calcarifer Bloch) yang dipelihara di air laut. Analisis struktur jaringan hati dilakukan melalui teknik histologi. Hasil penelitian menunjukkan bahwa Hg(NO3)2 memberikan efek negatif pada hati benih ikan. Pada jaringan hati, (Hg(NO3)2) menyebabkan kerusakan atrophy, necrosis, lapisan antar sel hati berpisah, perlemakan hati, pembengkakan sel yang tidak beraturan, degenerasi pada vacuola, terbentuknya ruang antar sel, hepatitis, sirrhosis dan terdapatnya akumulasi logam berat Hg(NO3)2 dalam jaringan hati.Kata kunci: Jaringan hati, benih kakap putih, Senyawa logam berat.
Monitoring the endemic ornamental fish Pterapogon kauderni in Bokan Kepulauan, Banggai marine protected area, Indonesia Samliok Ndobe; Kris Handoko; Deddy Wahyudi; Moh. Yasir; Yulina Irawati; Wendy Alexander Tanod; Abigail Mary Moore
Depik Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.1.15363

Abstract

Abstract. The Banggai cardinalfish Pterapogon kauderni is a species of national and international conservation concern. Established in November 2019, the Banggai marine protected area (MPA) in Central Sulawesi, Indonesia covers most of the endemic range of this ornamental fish. The third repeat survey (T2 monitoring) under the National Action Plan for Banggai Cardinalfish Conservation (NAP-BCFC) was carried out in October 2019 at eight sites in the Bokan Kepulauan region within the MPA. The T2 monitoring used the standard NAP-BCFC belt transect method. Data were collected on P. kauderni abundance (by size class: recruits, juveniles, adults) and microhabitat (sea urchins, sea anemones, hard corals, and others). Data were evaluated with respect to the T0 (2017) survey and T1 (2018) monitoring at the same sites, as well as previous surveys in 2004 (2 sites) and 2012 (4 sites). The data show wide between-site variation in P. kauderni and microhabitat parameters, with one subpopulation at very high risk of extirpation. Trends included declines over time in P. kauderni, sea urchin and sea anemone abundance, with an increase since 2017 in hard coral microhabitat use by adult P. kauderni. We recommend evaluation of other P. kauderni populations in Bokan Kepulauan and specific site or zone-based actions. However, we conclude that the most urgent priority for P. kauderni conservation in Bokan Kepulauan is protection of key microhabitat through a moratorium on sea urchin and sea anemone collection in P. kauderni habitat.  Keywords: Banggai cardinalfish, endangered species, marine conservation, microhabitat, monitoring, ornamental fishery, CITES
Kajian dinamika pantai : Studi kasus di Pantai Rening, Jembrana, Bali Nurin Hidayati; Raut Wahyuning Paluphi; Mohammad Arif Asadi; Hery Setiawan Purnawali
Depik Vol 6, No 1 (2017): April 2017
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.6.1.5457

Abstract

The objectives of present study were to determine the distribution of sediment associated with shoreline changes and to analyze the beach dynamics in Rening Beach. Sediment samples were taken from seventeen sampling points spread along the beach, and then followed by the lab test using granulometri method to determine the characteristics of sediment. Shoreline change was analyzed using analysis of satellite imagery in 2011, 2014 and 2016, while the sediment transport were analyzed using Hjulstrom graph. Then, Rening Beach dynamics can be analyzed. Sediment test results showed that sediment type in Rening Beach was dominated by sand with diameter of between 0.25-5 mm. The ocean currents movement was dominantly to the west. The results of shoreline change analysis between the years 2011-2016, and Hjulstrom graph analysis showed the same pattern that Rening Beach was eroded. The Rening Beach was high dynamics with subjected to beach erosion in the form of littoral drift due to longshore currents.Penelitian ini bertujuan untuk mengetahui perubahan garis pantai, transpor sedimen dan dinamika pantai di Pantai Rening. Pengambilan data arus dan sampel sedimen diambil dari tujuh belas titik pengambilan sampel yang tersebar merata di sepanjang perairan Pantai Rening. Sampel sedimen kemudian diujikan di laboratorium menggunakan metode granulometri untuk mengetahui karakteristik sedimen. Perubahan garis pantai dianalisa menggunakan analisis peta citra satelit tahun 2011, 2014 dan 2016, sedangkan pola transpor sedimen dianalisa menggunakan grafik Hjulstrom. Dari hasil analisa perubahan garis pantai dan transpor sedimen, dapat dianalisa dinamika Pantai Rening. Hasil uji sedimen menunjukkan bahwa jenis sedimen didominasi oleh pasir sedang dengan diameter antara 0.25-5 mm. Pergerakan arus dominan mengarah ke arah barat. Hasil analisis perubahan garis pantai antara tahun 2011-2016, dan analisa grafik Hjulstrom menunjukkan pola yang sama bahwa pada Pantai Rening mengalami erosi dan mundurnya garis pantai. Dinamika Pantai Rening cukup tinggi dengan kecenderungan terjadi erosi pantai berupa littoral drift akibat arus sejajar pantai. 
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
Kondisi ekosistim mangrove di sub district Liquisa Timor-Leste Antonio de Jesus
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.1.3.55

Abstract

Abstract. The objective of the present study was to determine the condition of the mangrove ecosystem and how to the influence of physic-chemical environment parameters on community structure of mangrove vegetation in Kaitehu Tibar and Ulmera in Bazartete coastal areas District of Liquisa, Timor-Leste. The parameters observed include the condition of mangrove vegetation, soil substrates, plankton abundance and Nutrient Elements in the area. The results showed that, the Sonneratia alba species is the most dominating in Bazartete area, compared with Rhizophora and Brugueira cylindric species, ie 967 threes /ha, 967 threes /ha, and 1333 threes /ha, The results of laboratory analysis quality of physical-chemical conditions of the environment shows that, there are significant differences in soil nutrient substrate in the 3 observation areas. such as follows: Substrate ground, the average content of C-organic were 0.67%, 2.47% and 0.21%, K = 1.17 Me/100g, 1.20 Me/100g , and 1.14 Me/100g; Ca = 32.39 Me/100g, Me/100g 25.83, and 27.09 Me/100g; Me/100g Mg = 11.46, 9.81 and 9.78 Me Me/100g / 100g; Me/100 g Na = 8.47, 8.26 and 9.78 Me/100g Me/100g. The cation concentration at each observation areas is : K = 0.023 mg / l, 0.023 mg / l and 0.046. Ca = 0.05 mg / l, 0.04 mg / l and 0.04 mg / l. Mg= 0.02 mg / l, 0.03 mg / l, 0.026 mg / l, and Na = 0.03 mg / l, 0.03 mg/l and 0.02 mg/l.Keywords. Mangrove ecosystems, mangrove environment habitats, organic matter, Calsium and Magnesium

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