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Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan

depik
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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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Trophic status analysis and estimation of fish production in Aneuk Laot Lake aquatic resources management, Sabang City Nurfadillah Nurfadillah; Irma Dewiyanti; Sri Riska Rahayu; Siswani Sari; Indri Karina; Hasfiandi Hasfiandi
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Aneuk Laot Lake is located in Sabang City, Weh Island, Aceh Province. Changes in water quality can affect the life of aquatic organisms found in Aneuk Laot Lake. The purpose of this research estimates fish production and trophic status for the aquatic resource management of Aneuk Laot Lake, Sabang. This research was conducted in September 2019 in Lake Aneuk Laot using the TRIX, TSI (Trophic State Index) and Nygaard index methods to determine fish production and trophic status. Observation stations were determined using stratified random sampling method and analysis of chlorophyll-a was done using the Trichomatic method. The results showed that the waters of Aneuk Laot Lake can be categorized as eutrophic to hypereutrophic. The estimated value of fish production in Aneuk Laot Lake based on the chlorophyll-a approach is 109.84 kg/ha/year, with a lake area of 61.6 ha. Water quality parameters are still in a state that can be tolerated by aquatic organisms in Aneuk Laot Lake.Keywords:Fish production potential Water qualityTRIX indexBiomass productionWater productivity

Survival and growth of Pangasianodon hypophthalmus cultured under controlled photoperiod Cyntia Uli Artha Sihombing; Muhammad Fauzi; Windarti Windarti
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Changing in photoperiod duration may affects the physiology of nocturnal fish such as Pangasianodon hypophthalmus. A study aims to understand the effects of controlled photoperiod towards survival and growth of P. hypophthalmus has been conducted from June to August 2020. There were 3 treatments applied, namely natural photoperiod, 18 hours dark (18D), and 24 hours dark (24D) with 3 replications in each treatment. The rearing tanks used in this study were 100 L circular plastic tanks. In 24D treatment, the tanks were placed under dark colored tarp tent continuously. For the 18D treatment, the tanks were placed under dark tarp tent, but the tent was opened for 6 hours/ day (the tanks were in dark condition for 18 hours/ day), while the control tanks were positioned under natural photoperiod. P. hypophthalmus fingerlings, 6-8 cm TL and 4-5 g BW were used in this study. Thirty fishes were reared in each rearing tank, they were feed with commercial pellets, 2 times/day, at satiation. Fish survival was monitored every day, while samplings for fish growth were conducted weekly for a 8 weeks period. Results indicate that the survival of fish was 100% in each treatment applied. Fish growth, however, shown differences. The growth of fish reared in 24D and 18D was better than that of the control. By the 9th week, the fish in 24D was around 70.71g BW with 19.27 cm TL (daily growth rate 9.35%), while those of the 18D was 69.41 g BW, 18.77 cm TL and 9.29% daily growth rate. The fish reared under natural photoperiod was around 61.95 g BW with 18.19 cm TL and 7.33% of daily growth rate. Data obtained indicate that the application of longer dark is positively improve the growth of P. hypophthalmus.Keywords:Nocturnal FishLight Dark Catfish

Pengaruh getah pepaya (Carica papaya) terhadap sintasan tokolan udang windu (Panaeus monodon) pada kepadatan yang berbeda selama pengangkutan Wahyu Tursina; Sofyatuddin Karina
Depik Vol 2, No 1 (2013): April 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The objective of present study was to evaluate the possibility of papaya’s latex (Carica papaya) as anti stress or larvaside for tiger shrimp (Panaeus monodon) post larvae Pl 14-30 during transportation. The tiger shrimp post larvae was collected from BBAP Ujung Batee, Aceh Besar on September, 2012. Reseach method used the completely random design with two factors, density of post larvae with three treatments (1000; 1500 dan 2000 ind/l) and concentration of papaya’s latex with four treatments (0; 100; 200 dan 300 ppm) and three replications for each treatments. The effect of papaya’s latex on tiger shrimp post larvae was observed by calculating the percentage of post larvae’s survival rate. The calculation was only done after twelve hours of transportation, due to the everage of survival rate percentage of post larvae on all levels of density was less than 50%. The ANOVA test showed that the density and the concentration factors gave significance effect on survival rate of tiger shrimp post larvae (P0,05). The results showed that survival rate of tiger shrimp post larvae (PL 14-30) were decreased with increasing of larvae density and concentration of papaya’s latex. However, Duncan’s test showed that the highest survival rate was obtained at 1.000 ind/l and 0 ppm of papaya’s latex. Hence, the effect of papaya’s latex concentration treatments in this study was larvaside on tiger shrimp post larvae.Key words: Closed transportation system, dissolved oxygen, enzyme papain, tiger shrimp post larvae.

Hubungan panjang-berat ikan monacanthus cinensis dan acreichthys tomentosus di Pulau Fair, Tual, Maluku Tenggara Bayu Kumayanjati; Teddy Triandiza; Agus Kusnadi
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Length-weight relationship analysis is used to determined the pattern of the growth for the fish. Based on this knowledge, field study have been done at the Fair island waters, the district of Tual, in April, June and August 2014, to collect data length and weight of Monacanthus cinensis and Acreichtys tomentosus. The length of the fish is measured using a digital caliper with an accuracy of 0.01 mm and weighed using an analytical balance precision balance ACS - AD 300 with an accuracy of 0.01 g. The number of fish samples analyzed were 288 for M. cinensis and 270 for A. tomentosus, respectively. Based on the analysis of length-weight relationship and condition factor, M.cinensis and A.tomentosus have the same growth pattern, i.e., negative allometric, with b values 2.505 and 2.3195 (b 3), respectively.Value of condition factor were 1.083 - 3.379 for M. cinensis and 1.003 - 4.106 for A. tomentosus, both fish were included in the category of fish that have a slightly flattened body.Keywords: Monacanthus cinensis, Acreichthys tomentosus, length-weight relationship, growth pattern, Fair Island Abstrak. Analisa hubungan panjang berat ikan merupakan analisa untuk mengetahui pola pertumbuhan ikan. Adapun penelitian ini dilakukan pada ikan Monacanthus cinensis dan Acreichthys tomentosus pada bulan April, Juni dan Agustus 2014 di perairan Pulau Fair, Tual, Maluku Tenggara. Ikan hasil tangkapan diukur panjangnya menggunakan digital caliper dengan ketelitian 0,01 mm, dan beratnya menggunakan timbangan analitik ACS precision balance-AD 300 dengan ketelitian 0,01 g. Jumlah ikan sampel yang dianalisa masing-masing sebanyak 288 ekor untuk M. cinensis dan 270 ekor untuk A. tomentosus. Berdasarkan analisa hubungan panjang berat dan faktor kondisi, M. cinensis dan A. tomentosus memiliki pola pertumbuhan yang sama yaitu alometrik negatif dengan nilai b masing-masing sebesar 2,505 dan 2,3195 (b3). Nilai faktor kondisi (Kr) untuk kedua jenis ikan tersebut masing-masing berkisar antara 1,083 – 3,379 untuk ikan M. cinensis dan 1,003 – 4,106 untuk A. tomentosus, keduanya termasuk dalam kelompok ikan yang memiliki bentuk badan yang agak pipih.Kata Kunci: Monacanthus cinensis, Acreichthys tomentosus, hubungan panjang berat, pola pertumbuhan, Pulau Fair

Morfometri Danau Kelapa Gading Kota Kisaran, Kabupaten Asahan Provinsi Sumatera Utara Rizki Ridoan; Ahmad Muhtadi; Pindi Patana
Depik Vol 5, No 2 (2016): August 2016
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Kelapa Gading Lake is an artificial lake located in Asahan of North Sumatera. Data on the lake morphometry is needed to determin the level of water fertility, and to know ability of lake in accepting the pollutant load. The purpose of the study was to examine aspects of the lake morphometry. The research was conducted from February to April 2016. Data collected in this research were depth, water flow, the width of the lake and around the lake. The data were processed using ArcMap. The result showed that Kelapa Gading Lake has an area approximately 11931.37 m2, with the maximum length of 161.14 m, a the maximum width of 124.72 m, and the circumference of 688.50 m. The maximum depth of 2.15 m, with the shape of the lake bottom is flat. The water volume is approximately 15033.52 m3, and the water discharge of about 0.74 to 0.92 L s-1, with a stay of lake water ± 225-226 days, the brightness of the water ranges from 0.37 to 0.48 m with the compensation depth of about 0.98 to 1.07 m, and Kelapa Gading Lake has low stability.Keywords: ArcMap, bathymetric, compensation depth, lake, morphometry Abstrak. Danau Kelapa Gading merupakan danau buatan yang berada di Kabupaten Asahan, Sumatera Utara. Data mengenai morfometri danau sangat diperlukan untuk menentukan tingkat kesuburan perairan dan juga mengetahui seberapa besar kemampuan danau dalam menerima beban pencemar. Tujuan dari penelitian ini untuk mengetahui aspek morfometri danau Kelapa Gading. Penelitian ini dilaksanakan dari Februari-April 2016. Pengambilan data yang dilakukan dalam penelitian ini adalah data kedalaman, debit air, lebar danau, dan keliling danau. Data-data tersebut diolah dengan menggunakan ArcMap. Hasil penelitian menunjukkan bahwa Danau Kelapa Gading memiliki luas sekitar 11.931,37 m2, dengan panjang maksimum 161,14 m, lebar maksimum 124,72 m, keliling 688,50 m. Kedalaman maksimum 2,15 m, dengan bentuk dasar danau rata. Volume Danau Kelapa Gading adalah 15.033,52 m3, debit air sekitar 0,74-0,92 L/s, dengan masa tinggal air danau ±225-226 hari, kecerahan air berkisar 0,37-0,48 m dengan kedalaman kompensasi sekitar 0,98-1,15 m, dan Danau Kelapa Gading memiliki stabilitas yang rendah dan akan mudah mengalami pengadukan.Kata kunci: ArcMap, batimetri, danau, kedalaman kompensasi, morfometri

Molecular identification of sharks and rays species from Aceh waters, Indonesia Mutia Ramadhaniaty; Maria Ulfah; Indra Indra; Nur Fadli; Nanda Muhammad Razi
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Shark is a cartilaginous fish that is widely hunted because it has high economic value. The waters of Aceh are directly adjacent to the Indian Ocean and the Malacca Strait making it a preferred habitat for pelagic fish, especially sharks. Information on shark species landed in the waters west and east of Aceh is very limited due to difficulties in identification and commonly used local names. This study aimed to determine the types of sharks landed in Banda Aceh, Meulaboh, Langsa, Southwest Aceh and Simeulu and to find out specifically what species of sharks are most often landed in Aceh waters. Primary data gathering consisted of four stages, namely sample collection, identification using identification books, molecular identification cytochrome oxidase subunit I (COI) and phylogenetic analysis. The results of the molecular analysis of 46 tissue samples from five locations identified 13 species of sharks, namely Carcharhinhus sorrah, Carcharhinhus amboinensis, Triaenodon obesus, Isurus oxyrinchus, Sphyrna zygaena, Sphyrna lewini, Loxodon macrorhinus, Hemipristis elongaria, Stagostoma fasciatum, Nebrius ferrugineus, Chilloscyllium punctatum, Isurus oxyrinchus, Alopias pelagicus, Alopias supercillosus and 1 species of rays, namely Rhynchobatus australiae. Phylogenetic tree reconstruction using the Neighbor Joining method of 610 basepairs consisting of two large clades separates the species Alopias pelagicus and Isurus oxyrichus with Carcharhinus sorrah, Sphyrna lewini, Loxodon macrorhinus and Rhyncobatus australiae with boostrap values of 87% and 64%. The haplotype diversity shown ranged from 0.667-0.889 while the nucleotide diversity ranged from 0.001-0.097. These values indicates high diversity because of the variance in the number of species found.Keywords:BarcodeCOISharks catchAlopias supercillosusSphyrna lewini

The effect of chitosan levels in feed on the growth and daily feed consumption of giant gourami (Osphronemus goramy) Dito Maryanto Putra; Roffi Grandiosa; Herman Hamdani; Kiki Haetami
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Chitosan is an ingredient that can be used as a feed additive. In aquaculture, chitosan can be used as an antimicrobial, antifungal, antioxidant growth-promoting and immunostimulant. This study aims to determine the optimum addition of chitosan to feed to increase growth and daily feed consumption of giant gourami. The method used in this research is an experimental method using a completely randomized design (CRD), which consists of five treatments and three replications. The treatments used were (A) without chitosan (control), (B) 2.5 g/kg feed, (C) 5 g/kg feed, (D) 7.5 g/kg feed, and (E) giving chitosan of 10 g/kg feed. The test fish used were giant gourami with a 6 – 8 cm length and a weight of 8 – 10 g. The container used was hapa measuring 1 x 1 x 1 m3 with a density of 15 fish per treatment and 42 days of maintenance. The feeding rate was 3% of the fish biomass. Data from observations of length and weight were analyzed using Analysis of Variance (ANOVA) with a 95% confidence level; if there was a significant difference, Duncan's multiple distance test was performed. The results showed that addition of chitosan 7.5 g/kg feed was effective in improving growth on giant gourami. During maintenance, absolute length growth was 2.90 ± 0.10 cm, absolute weight growth was 15.33 ± 1.19 g, daily growth was 36.51 ± 2.84%, feed conversion ratio was 1.69 ± 0.06, and survival rate was 100 ± 0.00%. This research concluded that the optimum level of addition of chitosan to increase growth and daily feed consumption of giant gourami was 7.5 g/kg feed.Keywords:ChitosanFeed additiveGiant gouramiGrowth

Kualitas perairan Natuna pada musim transisi Mariska Astrid Kusumaningtyas; Rikha Bramawanto; August Daulat; Widodo S. Pranowo
Depik Vol 3, No 1 (2014): April 2014
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstrak. Perairan Natuna, khususnya pada Kawasan Konservasi Laut Daerah (KKLD) I diprioritaskan untuk mendukung kegiatan perikanan berkelanjutan, sehingga penting diketahui kualitasperairannya. Penelitian ini bertujuan untuk mengetahui karakteristik kualitas air berdasarkan parameter fisika maupun kimia sebagai basis data terkini mengenai kualitas perairan Natuna pada musim transisi. Penelitian dilakukan di 31 stasiun pada bulan November 2012. Parameter kualitas air yang diukur antara lain kecerahan, derajat keasaman (pH), oksigen terlarut, suhu, salinitas, padatan tersuspensi total atau Total Suspended Solids (TSS) dan nutrien (nitrat, fosfat, silikat). Parameter pH, oksigen terlarut, suhu, dan salinitas diukur secara in-situ menggunaan alat water quality meter (TOA-DKK), kecerahan diukur menggunakan secchi disk, sedangkan sampel air di bawa ke laboratorium untuk dianalisis konsentrasi nutrien dan TSS. Hasil penelitian menunjukkan nilai kisaran kecerahan yaitu 2-20,9 (m), pH 8,09-8,27, oksigen terlarut 6,34-7,96 (mg/l), suhu 29,2-30,6 (°C), salinitas 27,9-30,4 (PSU), TSS 3-26 (mg/l), nitrat 0,005-0,078 (mg/l), fosfat 0,005-0,015 (mg/l) dan silikat 0,045-0,704 (mg/l). Hasil penelitian dibandingkan dengan baku mutu air laut untuk biota laut berdasarkan Keputusan Menteri Lingkungan Hidup Nomor 51 Tahun 2004. Berdasarkan hasil penelitian, kondisi perairan Natuna masih tergolong baik untuk menunjang kehidupan biota laut.Kata kunci: Parameter kimia; Parameter fisika; Natuna; musim transisi

Keragaman, kerapatan dan penutupan lamun di Pulau Biak, Papua Citra S. U. Dewi; Beginer Subhan; Dondy Arafat
Depik Vol 6, No 2 (2017): August 2017
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

The purpose of this study were to evaluate the diversity, density, and covering area of seagrass in Biak Island, Papua. Methodology that used in this study were combination of line intercept and quadrat transects, which drawn perpendicular to the shoreline. The results showed that there were 9 species of seagras found in Biak Island and it was categorized as high category. The density was renged from 450 ind/m2 to 898 ind/mand the covering area was between 60% to 80%.Penelitian ini bertujuan untuk mengetahui keragaman, kerapatan jenis lamun dan penutupan lamun di Pulau Biak. Metode yang digunakan dalam penelitian ini adalah transek kuadrat dan transek garis, yang ditarik tegak lurus dari garis pantai. Hasil penelitian menunjukkan bahwa keragaman jenis lamun di Pulau Biak tergolong tinggi, karena ditemukan delapan jenis lamun, dari 13 jenis lamun yang ada di Indonesia. Jenis lamun yang beragam di Pulau Biak diikuti juga dengan kerapatan lamun di setiap stasiun, yaitu pada kisaran 450 individu/m2 hingga 898 ind/m2. Kondisi ini seiring dengan penutupan lamun yang tergolong tinggi, yaitu berkisar antara 60% hingga 80%.

Stock conditions and status of blue swimming crab (Portunus pelagicus) in Demak water area, the northern coast of Central Java Aisyah Nur Nabila; Am Azbas Taurusman; Budy Wiryawan; Mochammad Riyanto
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Blue swimming crab (Portunus pelagicus) is the dominant catch in Betahwalang, Demak, and the most important export fish commodity, particularly to USA. The high demand for this crab has been promoting an excessive fishing effort, causing a decrease in the crab's natural stock. This study aims to investigate the biological condition of P. pelagicus on the northern coast of Central Java and assess the crab stock exploitation status in this study area. Carapace width, body weight, Gonad Maturity Stages (GMS), and sex of crab samples were collected from the fishers and collectors landing sites or meeting points. This study employs a simple random sampling technique with no replacement. This study revealed that the maximum carapace width of female crabs was 56-164 mm, and the estimated carapace width at first maturity (Lm) was 98.2 mm. The relationships between carapace width and body weight between male and female crabs indicated positive and negative allometric growth patterns. During this assessment, the P. pelagicus stock indicated an 'over-exploited’ status, with an LB-SPR parameter of 19 percent and an exploitation rate (E) of 0.66. Management measures such as minimum legal size, reduced effort, and open-close areas and seasons should be implemented to achieve sustainable use of the crab fishery.Keywords:Blue swimming crabFishing gearDemak watersCarapace lengthSpawning potential ratio

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Editorial Address Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia

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Ichsan Setiawan

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ichsansetiawan@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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Aceh

INDONESIA