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Ichsan Setiawan
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depik@usk.ac.id
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Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia
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INDONESIA
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
ISSN : 20897790     EISSN : 25026194     DOI : 10.13170/depik
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.
Articles 563 Documents
Efektivitas low light emitting diode sebagai lampu pengumpul ikan untuk perikanan bagan tancap Adi Susanto; Sugeng Hari Wisudo; Mulyono Sumitro Baskoro; Mochammad Riyanto; Fis Purwangka
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.2.15582

Abstract

The effectiveness of the artificial lights on fishing activity with a fixed lift net is significant influences on the success of fishing operations. The used of color and intensity must be adjusted to the preferences, response and behavior of the target fish, due to the fish can be more quickly attracted and concentrated in the catchable area. The development of LED technology as an energy-saving lamp has a great opportunity to be applied as a fishing lamp for fixed lift net fisheries. The purpose of this study is to determine the effectiveness of low power LEDs as a fishing lamp based on fish behavioral response. The study was conducted on a research field laboratory that was built in the waters of the Banten Bay in July - August 2018. Test fish were collected from catches of the guiding barrier around the research vehicle. Data on response and behavior of fish to fluorescent lights, blue, green and white LEDs were recorded using 360 ° sonar and side imaging sonar. The results showed the green LEDs had better effectiveness in attracting, focusing and concentrating fish in the main zone than other types of lights. The fish gather more quickly, form groups and have a stable and consistent swimming pattern in the main lighting zone. Green LED is more appropriate to be used as a fishing lamp on fixed lift net fishing with an optimum intensity range of 4-20 μW cm².Keywords: Light, Intensity, Optimum, Response, BehaviorABSTRAKEfektivitas lampu yang digunakan pada proses penangkapan dengan bagan tancap sangat berpengaruh terhadap keberhasilan operasi penangkapan ikan. Intensitas dan warna yang digunakan harus disesuaikan dengan preferensi, respons dan tingkah laku ikan target sehingga ikan lebih cepat terkumpul dan terkonsentrasi pada catchable area. Perkembangan teknologi LED sebagai lampu hemat energi berpeluang besar digunakan sebagai fishing lamp untuk perikanan bagan tancap. Penelitian ini bertujuan untuk menentukan efektivitas low power LED sebagai lampu pemikat ikan berdasarkan aspek respons dan tingkah laku ikan. Penelitian dilakukan pada wahana penelitian yang dibangun di perairan Teluk Banten pada bulan Juli - Agustus 2018. Ikan uji diperoleh dari hasil tangkapan sero yang berada di sekitar wahana penelitian. Data respons dan tingkah laku ikan terhadap lampu neon, LED biru, hijau dan putih direkam menggunakan sonar 360° dan side imaging sonar. Hasil penelitian menunjukkan LED hijau memiliki efektivitas yang lebih baik dalam memikat, mengumpulkan dan mengkonsentrasikan ikan pada main zone dibandingkan jenis lampu lainnya. Ikan lebih cepat berkumpul, membentuk kelompok serta memiliki pola renang yang stabil dan konsistem di zona utama pencahayaan. LED hijau lebih tepat digunakan sebagai fishing lamp pada bagan tancap dibandingkan jenis lampu lainnya dengan intensitas optimum antara 4-20 μW/cm².Kata kunci: Cahaya, Intensitas, Optimum, Respons, Tingkah laku
Seagrass growth at different turbidity levels Lisdayanti, Eka; Rappe, Rohani Ambo; Asriani, Nenni; Handayani, Nur Tri; Limbong, Steven Rante
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.13.1.35173

Abstract

Seagrass beds are highly productive ecosystems and have ecosystem services in the coastal zone but are continuously declining globally. Mainly due to anthropogenic activities that reduce the amount of light entering the waters and reaching seagrasses, such as dredging, reclamation, sedimentation, and eutrophication. This research was conducted to determine the relationship between turbidity level and seagrass composition and morphology. The observations were conducted in November 2016 in Pangkep district on Sagara Island and Makassar City on Barrang Lompo and Lae-lae Island, South Sulawesi Province. The observation stations are determined based on the level of turbidity conditions. Sagara Island, Barrang Lompo, and Lae-lae are areas that are considered to represent turbid waters, by laying a line transect (roll meter) perpendicular to the coast and doing it 3 times. The data collected in this study related to seagrass conditions such as seagrass composition and seagrass morphometrics. Variables observed in seagrass leaf morphometric observations were leaf surface area and leaf width, leaf thickness, and distance between internodes. In addition, other data collected is environmental parameter data, such as currents, TSS, PAR, temperature, and salinity. One-way ANOVA analysis showed that there was a difference in turbidity levels between Barrang Lompo Island, Sagara Island, and Lae-lae Island with a significance value of 0.000. The types of seagrasses found on Barrang Lompo with light availability of 1735.23 mol/m/s are Enhalus acoroides, Cymodocea rotundata, Halodule uninervis, Halophila ovalis, Thalassia hemprichii. On P. Sagara with light availability of 170.01 mol/m/s, E. acoroides, T. hemprichii, Cymodocea serrulata, H. uninervis, and H. ovalis were found. Whereas in P. Lae-lae only E. acoroides was found. The results showed that the level of turbidity has an influence on seagrass morphometrics, namely leaf ratio and leaf thickness of E. acoroides species, and internode distance in H. uninervis species.Keywords:Availability of lightMorphometricsPARSeagrass bedsTurbidity
Description scleractinian coral from Miang Island, East Kalimantan Rosdianto Rosdianto; Sayyid Afdhal El Rahimi; Adrian Kryk; Sulastri Arsad; Oktiyas Muzaky Luthfi; M Azurea Bahri Luthfi
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.11.3.29277

Abstract

The exact number of coral species in Indonesia is not unclear yet, in 2002 the coral taxonomist, JEN Veron, stated 590 species, and it was supported by an Indonesian coral taxonomist, Suharsono, eight years later. The current coral species data is 605 but it is from Coral Triangle Region area (CT).  The eastern of Indonesia, which is located in the Coral Triangle Region, has received a lot of attention from coral researchers, due to coral species that have been described. On the other hand, the coral reef from the western part of Indonesia, including in the East Kalimantan, has not been explored much in recent times. Through the ecoregion view, E. Kalimantan region is clustered into ecoregion 43 (Sulu Sea) which has 540 coral species. Miang Island is one of the inhabited islands from E. Kalimantan, and has an unexplored coral reef ecosystem. The method had been used in this research is descriptive, which uses photos of live corals to describe colony characteristics corals. The results of the study have described 36 species of coral and several invertebrates that make up coral reefs on Miang Island.Keywords:Hard coralAcroporaPoritesIdentificationPulau Miang
Grouper DNA barcoding studies in Indonesia: A short review Nanda Muhammad Razi; Zainal A. Muchlisin; Siti Maulida; Mutia Ramadhaniaty; Firman M. Nur; Adrian Damora; Sumarni Laila Buang Manalu; Nur Fadli
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.10.2.21255

Abstract

Indonesia is recognized as one of the territories that have the highest reef fish biodiversity in the world. One of the commercially valuable fish in this area is the groupers (locally name "kerapu"). At least 76 grouper species have been reported in Indonesian waters, with three species were categorized into "vulnerable", five species "Data Deficient", and 68 species under the "Least Concern" category based on IUCN classification. The increasing exploitations rate had been reported caused the grouper stocks in Indonesia to decrease and threatened extinction. However, only limited scientific data is available regarding the grouper in Indonesia, including their identification. In most fish landing sites across Indonesia, the groupers are morphologically identified and recorded as "kerapu" to replace their scientific species names. Accurate species identification is essential in designing appropriate and sustainable management of fisheries resources. One of the tools that have been used in fish identification is DNA barcoding. In the last two decades, this molecular method has been applied to identify many fish groups globally, including grouper fish. This study reviewed the DNA barcoding approach in grouper identification in Indonesia based on the available literature.Keywords:DNA barcodingGrouperMolecular TaxonomyFisheriesIndonesia 
Analisis kimia sedimen di sekitar ekosistem mangrove desa Lambadeuk, Peukan Bada, Aceh Besar Muhammad Irham; Saidatul Adhla; Chitra Octavina
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.9.1.15163

Abstract

Abstract. Research on analysis of sediments chemistry around the mangrove ecosystem of Lambadeuk village, Peukan Bada Subdistrict aimed to the analyze nutrient content of sediments around mangrove ecosystem which grows in Lambadeuk, Aceh Besar. The study was conducted in April 2018 - May 2019. Research stations were determined by using purposive random sampling method then sediment samples were taken by coring technic. The results of the analysis showed that there are two types of sediments; muddy sand and sandy mud type of sediment. Sandy mud sediment has higher organic matter than muddy sand. The percentage value of total organic matters ranged from 27.89% - 42.41%, while C-Organic was between 0.08% - 1.28%. The percentage of dominant C-organic was found in places that are overgrown with mangroves, while the total organic matter content is more in places that does not have mangroves. In addition to the presence of mangroves that affect the amount of organic sediment and type of sediment, oceanographic factors such as currents, topography, organic matter content, and C-Organic are also affect the type of existing sediment.Keywords: Mangroves, Sediment, Organic matter, C-Organic.Abstrak. Penelitian mengenai analisis kimia sedimen di sekitar ekosistem mangrove Desa Lambadeuk, Kecamatan Peukan Bada bertujuan untuk menganalisis kandungan unsur hara sedimen di sekitar ekosistem mangrove yang tumbuh di daerah Lambadeuk, Aceh Besar. Penelitian ini dilakukan pada bulan April – Mei 2019. Metode penentuan stasiun penelitian menggunakan metode purposive random sampling kemudian sampel sedimen diambil dengan menggunakan coring. Hasil analisis menunjukkan bahwa tipe sedimen yang ada di Desa Lambadeuk, Kecamatan Peukan Bada terdapat dua tipe sedimen yaitu pasir berlumpur (muddy sand) dan lumpur berpasir (sandy mud). Tipe sedimen lumpur berpasir memiliki kandungan bahan organik lebih tinggi daripada pasir berlumpur. Nilai persentase kandungan bahan organik total berkisar yaitu berkisar antara 27,89 % - 42,41 %, sedangkan C-organik berkisar antara 0,08 % - 1,28 %. Persentase C-organik lebih banyak terdapat di tempat yang banyak ditumbuhi mangrove, sedangkan kandungan bahan organik total lebih banyak di tempat yang tidak ditumbuhi mangrove sama sekali. Disamping keberadaan mangrove yang mempengaruhi besarnya bahan organic sedimen, faktor-faktor oseanografi seperti arus, topografi, kandungan bahan organik, dan C-organik juga mempengauhi tipe sedimen yang ada.Kata Kunci: Mangrove, Sedimen, Bahan Organik, C-organik. 
Kandungan Tembaga (Cu) dan Timbal (Pb) pada Lamun Enhalus accoroides dari Perairan Batam, Kepulauan Riau, Indonesia Ismarti Ismarti; Ramses Ramses; Fitrah Amelia; Suheryanto Suheryanto
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.6.1.5555

Abstract

The objective of the present study was to analyze the metal content of copper and lead in Enhalus accoroides seagrass in Batam Island waters. Samples of seagrass (E. accoroides) were collected from six locations along the western region of Batam Island then dried and performed with acid destruction. The measurements of Cu and Pb in the samples were conducted by Atomic Absorption Spectrophotometer. The result showed that there was an increasing of copper and lead contaminant level on sample E accoroides during two periods in a year.  The Cu level ranged from 0.63 to 46.1 mg/kg, meanwhile, lead level ranged from  2.14 to 10.52mg/kg respectively. The highest accumulation of copper and lead were recorded on leaves, it was reached 10.81 mg/kg and 5.98mg/kg, respectively.Penelitian ini bertujuan menganalisis kandungan logam tembaga (Cu) dan timbal (Pb) pada lamun Enhalus accoroides di sepanjang perairan barat Pulau Batam. Sampel lamun dikumpulkan dari enam lokasi  kemudian dikeringkan dan dilakukan destruksi dengan asam. Penentuan kadar logam tembaga dan timbal dalam sampel dilakukan dengan spektrometri serapan atom. Hasil penelitian menunjukan adanya peningkatan kadar logam Cu dan Pb pada sampel lamun E. accoroides selama 2 periode sampling dalam 1 tahun. Kadar logam Cu dan Pb pada lamun secara berturut berada pada rentang 0.63-46.1 mg/kg dan 2.14-10.52mg/kg. Akumulasi logam Cu dan Pb dalam lamun E. accoroides tertinggi pada bagian daun sebanyak 10.81 mg/kg Cu dan 5.98 mg/kg Pb. 
Color quality improvement of Cherax quadricarinatus with dragon fruit peel meal utilization Rakhmawati, Rakhmawati; Aprilia, Tulas; Indariyanti, Nur; Saputra, Andre; Marlina, Eulis
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.12.3.28628

Abstract

This study aims to determine the effect of dragon fruit peel meal utilization in the diet to improving the color quality of freshwater crayfish (Cherax quadricarinatus). This research was done from May to June 2022 at the Lampung State Polytechnic Fisheries Laboratory. The test animals used were freshwater crayfish with an average weight of 6.7 6.8 g/crayfish and a stocking density of 7 crayfish/aquarium. Feeding with a feeding rate of 3% twice a day. The experimental design used was a completely randomized design with 5 treatments and 3 repetitions. The treatments were A = commercial feed (control), B = 5% dose, C = 10% dose, D = 15% dose, E = 20% dose. The parameters observed in this study were an increase in color quality and water quality. The results of this study indicate that the difference in the dose of red dragon fruit peel meal in the diets can have a significant effect on the color brightness of freshwater crayfish (86.01 in claws and 87.59 in Chepalotorax to teslon). The conclusion of this research is that supplementation of red dragon fruit peel meal mainly at a dose of 10% in the feed can improve the color quality of freshwater crayfish from brown to bluish color.Keywords:Dragon fruit peel meal UtilizationDietColor qualityCherax quadricarinatus
Intensive Litopenaeus vanamei pond performance with irrigation system based on Distribution of Vibrio spp. Claritha Madonsa; Bambang Widigdo; Majariana Krisanti; Munti Yuhana
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.11.2.24946

Abstract

Intensive shrimp ponds are characterized by the high stocking density of shrimp and artificial feeding and are equipped with an irrigation network system. The purpose of this study was to analyze the intensive L.vannamei pond with an irrigation system based on Vibrio spp. distribution to determine environmental quality degradation in terms of the treat of pathogenic bacteria. This study was carried out for one production cycle from March toJuly 2021 in an intensive shrimp farm in Sarjo Village, Pasangkayu Regency, West Sulawesi. The parameters analyzed in this study consisted of Total Bacterial Count (TBC), Total Vibrio Count (TVC), yellow and green colony Vibrio spp. in water using the spread plate method. Water samples for bacterial analysis were taken from 1) source water: (a) surface (0–50 cm depth) and (b) pump mouth; 2) treatment pond; 3) aquaculture pond; 4) Waste Water Treatment Ponds (WWTP); 5) outlet (before discharge into public waters). The results showed that the distribution of bacteria from seawater to WWTPs pond still increased the abundance of Vibrio spp., although the abundance of Vibrio spp. is still safe or below the maximum limit of 104 CFU/mL. Distribution of Vibrio bacteria in Intensive L.vannamei Pond Sarjo Village, West Sulawesi gave a relatively good pond performance because it was characterized by an abundance of Vibrio bacteria in the pond irrigation system from inlet to outlet which was still below the maximum limit and high pond productivity.Keywords:Intensive shrimp pondPathogenicVibrio spp.Pond performanceAquaculture 
Penerapan suhu pemingsanan dalam transportasi sistem kering ikan baronang Siganus sp. Taufik Hidayat; Muhammad Baiquni Bramantyo; Mala Nurilmala
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.7.3.10207

Abstract

Abstract. Rabbitfish (Siganus sp.) is an unfamiliar fish consumption in public. Demand of fresh fishes continue to increase every year. One method to maintain freshness of fish is fish transportation method. The research purpose was to determine the best rabbitfih immotilization temperature for filler media in transportation tools packaging, immotilization fish use 2 ppt of clove oil, and then fish conscious test was measured at , 14°C, dan 17°C, and 19°C of temperatures.  The experiments were the fish conscious time and water quality analyses. Test of water qualities were seawater before used, water plus anesteshia (water+clove oil), immotilization water (water+clove oil+fish), seawater for temperature treatment, and seawaterafter conscious fish. Water quality parameter analyses were DO (Dissolved oxygen),pH, CO2, TAN, KH, GH, NO3, NO2. The best temperature of fish conscious time test in this experiment was 17°C with 300 minutes of conscious time.Keywords: Immotilization;  Siganus sp.; Transportation; Water quality Abstrak. Ikan baronang (Siganus sp.) merupakan ikan konsumsi yang belum familiar di masyarakat luas. Ikan segar terus meningkat permintaannya setiap tahunnya. Salah satu metode untuk mempertahankan kesegaran ikan adalah dengan metode transportasi. Penelitian ini bertujuan untuk mengetahui suhu pemingsanan terbaik ikan baronang untuk media pengisi pada kemasan alat transportasi, ikan dipingsankan dengan minyak cengkeh 2 ppt kemudian di uji waktu sadar ikan dengan perlakuan suhu 19°C, 14°C, dan 17°C. Pengujian yang dilakukan adalah uji waktu sadar ikan dan uji kualitas air. Kualitas air yang diuji adalah air laut sebelum digunakan, air ditambah anestesi (air+minyak cengkeh), air proses pemingsanan (air+minyak cengkeh+ikan), air laut untuk perlakuan suhu, dan air setelah pembugaran.Parameter uji kualitas air adalah DO, pH, CO2, TAN, KH, GH, NO3, NO2. Pengujian waktu sadar ikan terbaik adalah dengan perlakuan suhu 17°C dengan waktu sadar sebesar 300 menit. Kata kunci:Transportasi;Siganussp.; Pemingsanan; Kualitas air
Penilaian tingkat pencemaran logam berat dalam sedimen di perairan Pulau Morotai, Maluku Utara Edward .
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.4.2.2621

Abstract

Abstract. Morotai Waters, located in North of Maluku, has panoramic coastal waters and marine natural beautiful view, and rich of fishery resources, so it is potentially to be developed as a location for recreation area, mariculture, and fisheries industries. For those reasons, the development need a lot of base data, one of the data base is heavy metals. Heavy metals comes from various human activities, both on land and at sea and geological process. Heavy metals in low levels needed by aquatic organisms for the growth and development of its life, but high levels are toxic. Measurement of levels of heavy metals Pb, Cd, Cu, Zn, Ni, and Cr in the sediment in the waters of Morotai was conducted in June 2005. Sediment samples is taken using gravity cores at 13 research stations. The levels of heavy metals were measured using Atomic Absorption Spectrophotometer (AAS). The purpose of this study was to evaluate the contamination and pollution of heavy metals pollution level in Morotai Island waters using CF, I_geo, and PLI. The results of this study show that, based on the value of contamination factors (CF), geoaccumulation indices (I_geo) and pollution load indices (PLI), sediment in this water is include to uncontamination and unpolluted category and is still safe for marine life (CF0, I_geo0 and PLI 1).Keywords:  Morotai; sediment; heavy metal; pollutions Abstrak. Perairan Morotai terletak di Maluku Utara, perairan ini memiliki panorama pantai dan alam laut yang indah, serta kaya akan sumberdaya perikanan, sehingga berpotensi untuk dikembangkan sebagai lokasi  wisata bahari, budidaya, dan industri perikanan. Untuk pengembangan tersebut diperlukan data dasar, salah satu data dasar tersebut adalah data  logam berat. Logam berat berasal dari berbagai aktivitas manusia yang ada di darat maupun di laut, dan proses geologis di alam. Logam berat dalam kadar yang rendah diperlukan oleh organisme perairan untuk pertumbuhan dan perkembangan hidupnya, namun dalam kadar yang tinggi bersifat racun. Pengukuran kadar logam berat Pb, Cd, Cu, Zn, Ni, dan Cr dalam sedimen di perairan Morotai telah dilakukan pada bulan Juni 2005. Contoh sedimen diambil dengan menggunakan gravity core pada 13 stasiun penelitian. Kadar logam berat diukur dengan menggunakan Spektrofotometer Serapan Atom (SSA). Tujuan  penelitian ini adalah untuk menilai tingkat kontaminasi dan tingkat  pencemaran logam berat dalam sedimen di perairan Pulau Morotai dengan menggunakan nilai faktor kontaminasi (CF), indeks geoakumulasi (I_geo) dan indeks beban pencemaran (PLI). Hasilnya menunjukkan berdasarkan nilai CF, I_geo, dan PLI, sedimen di perairan ini termasuk kategori tidak terkontaminasi dan tidak tercemar oleh logam berat Pb, Cd, Cu, Zn, Ni, dan Cr, serta masih aman untuk kehidupan biota laut (CF0, I_geo0 dan PLI1).Kata Kunci: Morotai; sedimen; logam berat; pencemaran  

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