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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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The abundance and types of plankton in milkfish ponds at Banyuasin South Sumatera Fitrani, Mirna; Septiyani, Reni; Jubaedah, Dade; Wijayanti, Marini; Septimesy, Annisa; Mulyani, Yenni Sri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.30065

Abstract

Tidal lowland is an area with significant potential for fisheries development, especially in aquaculture. Abundant water supply and land availability provide great opportunities for cultivating aquaculture commodities such as fish, shrimp, and crab. However, effective water quality management poses a significant challenge, necessitating a comprehensive evaluation based on biological, physical, and chemical assessment. Among the crucial parameters influencing water fertility, the presence of plankton stands out. Therefore, this study aimed to investigate water fertility by identifying plankton species, abundance, diversity, dominancy, and water quality in milkfish ponds at Banyuasin, South Sumatra. The results showed that the abundance of phytoplankton and zooplankton ranged from 1030-1791 individual L-1 and 103-461 individual L-1, respectively. Furthermore, Bacillariaceae was recorded to be the highest specie, followed by Cyanophyta, Chlorophyta, Protozoa, Rotifer, and Arthropoda. The range diversity index varied between 1 to 2.6, while the density and dominance indices ranged from 0.9 and 1, as well as 0.1 and 0.8, respectively. The classification of the pond's fertility fell within the mesotrophic category, signifying a moderate level. In conclusion, the water quality maintained an optimum range, thereby supporting the growth of plankton and milkfish. Meanwhile, only ammonia was below the optimum range stipulated by PP No. 22 of 2021 suggested.Keywords:bioindicatormilkfishplanktontidal lowlandwater quality
The methodological analysis of sediment phosphate research on the coast of Indonesia: a short review Amri Adnan; Muhammad Irham; Muhammad Rusdi; Ichsan Setiawan; Sayed Abdul Azis
Depik Vol 11, No 1 (2022): April 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.1.21604

Abstract

The Atomic Absorption Spectrophotometer method (AAS) and UV-Vis Spectrophotometer method are often used in analyzing elements and compounds in water and sediment. The comparative method of AAS and UV-Vis analysis in sediments in this article is studied to see the accuracy of the equipment used and the efficiency of the resulting analysis. Analysis of the comparative method of phosphate analysis in coastal sediments shows differences and similarities in the use of the two instruments used even though the methods used based on the results of the review do not show significant differences. Methodologically, various types of methods can be carried out to analyze coastal sediment phosphates. The UV-Vis spectrophotometric method is generally more widely used than the AAS method. For a small number of sediment samples, the ASS method is more efficient than the UV-Vis method; however, UV-Vis is more accurate for dissolved samples because less phosphate is released when identified than the AAS method. Based on this, the AAS method is more effective in analyzing phosphate sediments in coastal areas than the UV-Vis method, but the UV-Vis method for wet samples is more accurate.Keywords:Coastal SedimentPhosphateSpectrophotometerUV-VisAAS
Kondisi suhu dan salinitas serta korelasinya dengan variabilitas eddy di Perairan Halmahera dan Mindanao Gadza B.T. Suharyo; Noir P Purba; Lintang P.S. Yuliandi; Mega L. Syamsuddin
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.3.15534

Abstract

The purpose of this study was to determine the dynamics of the waters around Halmahera Eddy (HE) and Mindanao Eddy (ME) both horizontally and vertically. The location of the study is in the Pacific Equator Pacific Waters with embedded at 20 - 10oN and 125o-135o E. The data used were temperature and salinity downloaded from Argo Float data centre and combined with surface currents data from MyOcean. The results showed that the two eddies have different impacts on water conditions. In HE, the characteristics are shown by convergent moving mass of water, increasing surface temperature and decreasing salinity. The characteristics of eddy in these waters indicate the existence of downwelling. In ME the mass of water moves divergently, the condition of the sea surface temperature is lower and the salinity level increases. The characteristics of eddy in these waters indicate upwelling.Keywords:EddiesUpwellingIndonesia ThroughflowArgo floatABSTRAKTujuan dari penelitian ini untuk mengetahui dinamika perairan di sekitar Halmahera Eddy (HE) dan Mindanao Eddy (ME) baik secara horizontal dan vertikal. Lokasi kajian berada di Perairan Pasifik Equator Barat dengan koordinat 2o LS – 10o LU dan 125o BT – 135o BT. Data yang digunakan adalah data suhu dan salinitas dari Argo Float dan data arus permukaan dari MyOcean. Hasil penelitian menunjukan bahwa kedua eddy ini memberikan dampak yang berbeda terhadap kondisi perairan. Di HE, karakteristiknya ditunjukkan dengan massa air yang bergerak secara konvergen, meningkatnya suhu di permukaan dan menurunnya kadar salinitas. Karakteristik eddy di perairan ini menunjukkan adanya downwelling. Di ME massa air bergerak secara divergen, kondisi suhu permukaan lautnya lebih rendah dan kadar salinitasnya meningkat. Karakteristik eddy di perairan ini ini menunjukkan adanya upwelling.Kata kunci:EddiesTaikan airArus Lintas IndonesiaArgo float
Variabilitas suhu laut pada kejadian IOD (Indian Ocean Dipole) di perairan barat Sumatera menggunakan data Argo Float Hanani Adiwira; Noir P. Purba; Syawaludin A. Harahap; Mega L. Syamsuddin
Depik Vol 7, No 1 (2018): April 2018
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.7.1.8089

Abstract

The objective of the research was to analyze the vertical variability of the water column in the West Sumatra waters. The data used to analyze the vertical variability was the temperature data sets from Argo float instruments which were operated from 2009 to 2011 in the West Sumatran sea region. The secondary data that used was the geostrophic current data sets which obtained from the Jason image satellite also sea temperature anomaly data. The method used in this research is by analyzing temporally and spatially and then describing while comparing the data. The result of the research showed that IOD formed from June to July with the peak of IOD was from September to November and the disintegration starts in December. The SST average on 2009 (Neutral IOD) during peak phase of IOD was 29.060C, in 2010 (Negative IOD) the SST mean is 28.690C, in 2011 (Positive IOD) the SST mean was 28.790C. The result from spatial analyzes showed that the strong IOD was the main reason for the movement of the mixed layer in West Sumatra waters, so the warm water cannot be found around the West Sumatra waters. The upper boundary depth of thermocline during peak phase of 2009’s neutral IOD starts from September was on 82.59 m, in October was 86.12 m and in November was 89.5 m. In Septemeber 2010 the upper thermocline boundary was found on 89.06 m deep, in October was 104.05 m, and in November was 107.36 m, the thermocline got deeper because the input of water masses from West Indian Ocean intensifies because of negative IOD event. In September 2011 the upper thermocline boundary was found on 64.16 m, in October was 75.35 m and in November was 79.88 m. The thermocline found more shallow because the mixed layer on East Indian Ocean moved westward so the thermocline lifted up to fill the water column emptiness.Penelitian ini bertujuan mengkaji variabilitas kolom air secara vertikal di perairan Barat Sumatera. Data yang digunakan yaitu data suhu dari instrumen Argo float yang beroperasi di perairan Barat Sumatera tahun 2009 – 2011. Data pendukung yaitu data arus geostropik yang diperoleh yang diperoleh dari citra Jason selain itu digunakan data suhu anomali laut. Metode yang digunakan adalah analisis temporal dan spasial serta deskriptif komparatif. Hasil penelitian menunjukkan proses pembentukan IOD terjadi pada Juni – Agustus kemudian mencapai puncak pada September – November dan proses peluruhannya pada Desember. Rata – rata SPL pada fase puncak tahun 2009 (IOD netral) yaitu 29.060C; pada 2010 (IOD negatif) yaitu 28.690C; dan pada 2011 (IOD positif) yaitu 28.790C. Berdasarkan analisis spasial IOD dengan intensitas kuat mengakibatkan pergerakan massa air hangat melewati perairan Barat Sumatera sehingga tidak terdeteksi lagi di lokasi ini. Batas atas termoklin pada fase puncak IOD 2009 (September) yaitu 82.59 m; Oktober sekitar 86.12 m dan November mencapai 89.5 m. Selanjutnya pada 2010 yaitu pada September sekitar 89.06 m; Oktober sekitar 104.05 m dan November mencapai 107.36 m. Terlihat, termoklin semakin dalam karena massa air hangat dari Hindia Barat yang mengisi perairan Barat Sumatera menjadi semakin kuat pada fase IOD negatif. Sebaliknya, pada September 2011 termoklin berada pada kedalaman 64.16 m; Oktober pada kedalaman 75.35 m dan November sekitar 79.88 m. Pada periode ini termoklin terdeteksi lebih dangkal karena lapisan mixed layer bergerak ke Hindia Barat dan kekosongannya diisi lapisan termoklin. 
Komposisi kimia kupang merah (Musculista senhausia) segar dan rebus Nurjanah .; Agoes M. Jacoeb; Reza Nurul Ulma; Shinta Puspitasari; Taufik Hidayat
Depik Vol 3, No 3 (2014): Desember 2014
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.3.3.2151

Abstract

The purpose of this study was to determine the yield, chemical compositions, amino acids, minerals, and heavy metal residues (Pb, Hg) of fresh and boiled mussel. Amino acid was analyzed usingHPLC, minerals and heavy metals were examined using AAS and phosphorus by spectrophotometer, fatty acids by GC, and cholesterol by Liebermann-Buchard. The results showed that the chemical composition of water content, ash, protein and lipid of mussels meat were decreased about 6.09%, 2.25%, 1.39%, 0.42%, respectively after boiled while carbohydrate was increased 4.07% and the amino acids were decreased after boiling. The Ca, Mg, K, P, Na, Cu were declined after boiled, while Co, Fe, Mn and Zn were incraseed. In addition, the Pb was decreased after boiled while Hg and Se were not detected in both fresh and boiled mussel meat. SAFA fatty acids was 38.71% (fresh) and 37.31% (boiled), MUFA 8.13% (fresh) and 8.02% (boiled), PUFA 10.31% (fresh) and 8.77% (boiled), and the cholesterol contents were 102.57 mg/100 g of fresh and 100.97mg/100 g for boiled mussel meat.
Kondisi perairan dan struktur komunitas makrozoobentos di Sungai Belumai Kabupaten Deli Serdang Provinsi Sumatera Utara Erni Dian Fisesa; Isdradjad Setyobudiandi; Majariana Krisanti
Depik Vol 3, No 1 (2014): April 2014
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.3.1.1087

Abstract

Abstract. The objective of the present study was to examine the water quality and macrozoobenthos community of Belumai, North Sumatra. The study was conducted from March to May 2013 at three  sampling locations for three times sampling with one month interval. The water quality parameters which recorded in the study was temperature, current velocity, stream width, depth, turbidity, pH, DO, COD, TOM. The results shows that the Belumai River has a high turbidity level (163.57 - 242.6 NTU) and COD have passed the threshold standard class 1, which is intended to standards drinking water. The dominant macrozoobenthos was the Oligochaeta (79%). The Agglomerative Hierarchical Clustering (AHC) is displaying 2 group where the group A (station 1) has a fairly good water conditions characterized by the presence of organisms that are facultative i.e. Gastropoda, while group B (station 2,3, and 4) was considered as polluted areas indicating by the present of a dominant macrocoobenthos fauna of Oligochaeta. The Oligocheata is a tolerant fauna and as indication of pollution.Keywords: Belumai River; Water quality; Macrozoobenthic diversity Abstrak. Penelitian ini bertujuan menilai kondisi perairan dan komunitas makrozoobentos di Sungai Belumai, Sumatera Utara. Penelitian dilakukan pada Bulan Maret sampai Mei 2013 di empat 4 stasiun, pengambilan sampel dilakukan sebanyak tiga kali dengan interval sebulan sekali. Parameter yang diukur adalah suhu air, kecepatan arus, lebar sungai, kedalaman, kekeruhan, pH, DO, COD, TOM, dan Makrozoobentos.  Hasil penelitian menunjukkan bahwa Sungai Belumai memiliki tingkat kekeruhan yang tinggi yaitu 163,57 – 242,6 NTU dan nilai COD telah melewati ambang batas baku mutu kelas 1, yang diperuntukkan untuk baku mutu air minum. Makrozoobentos yang mendominasi yaitu dari kelas Oligochaeta sebesar 79%. Analisis Agglomerative Hierarchical Clustering (AHC), menghasilkan 2 kelompok dendogram, yaitu  kelompok A (Stasiun 1) memiliki kondisi perairan yang cukup baik ditandai dengan keberadaan organisme yang bersifat fakultatif yaitu dari kelas Gastropoda sedangkan kelompok B (Stasiun 2,3, dan 4) telah tercemar ditandai dengan keberadaan organisme dari kelas Oligochaeta yang jumlahnya mendominasi. Oligochaeta merupakan organisme yang memiliki sifat toleran terhadap bahan pencemar dan menjadi indikasi adanya pencemaran.Kata kunci : Sungai Belumai; Kualitas air; Keanekaragaman Makrozoobentos 
Komposisi ikan karang di lokasi transplantasi karang di Pulau Rubiah, Kota Sabang, Aceh Nur Fadli; Aidia N; Muhammad M; Edi Rudi
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.1.3.122

Abstract

Abstract-. Coral transplantation is one of the techniques to rehabilitate the damaged coral reefs. The objective of this study is to observe the composition of reef fishes in the coral transplantation location in Rubiah Island, Sabang. The study was conducted in February 2011. Some of reef fishes Family were found in coral transplantation location (16 Family at 3 meters and 14 Family at 10 meters). The Family of Acanthuridae, Chaetodontidae, Pomacentridae Scaridae and Labridae were found in 3 meters. Reef fish families that dominated at depths of 10 meters were the Family of Acanthuridae, Pomacentridae Scaridae and Chaetodontidae. There are 40 reef fish species found in this study (34 species in 3 m and 38 species in 10m). Some reef fishes that were found in the transplantation area suggested that coral reefs rehabilitated using the technique of transplantation can improve its function as habitat for reef fish.Keywords: Transplantation, coral reefs, Rubiah Island
Turbidity effect derived from palm oil mill effluent altered predation period of siamese fighting fish (Betta splendens, Regan 1910) Zulfahmi, Ilham; Batubara, Agung Setia; Perdana, Adli Waliul; Roza, Zultira Harina; Nafis, Badratun; Maghfiriadi, Furqan
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.12.3.34628

Abstract

Contamination of palm oil mill effluent (POME) into water bodies potentially increases turbidity, resulting in disrupting aquatic organisms behaviour, including predation period. However, the effect of increased turbidity due to POME contamination toward the fish predation is still unexplored. Siamese fighting fish (Betta splendens) is one of the ideal test fish to investigate this effect. This study aims to analyze the effect of increased turbidity due to POME contamination toward the fish predation period of Siamese fighting fish. The research design was completely randomized with six treatments (0, 20, 40, 60, 80 and 100 NTU) followed by five repetitions for each treatment. The experimental data parameters include the predation rate of Siamese fighting fish during foraging activity, which was calculated from the percentage of the number of mosquito larvae consumed per 2 min during 15 min. The significance level of predation between treatments in each observation time period was analyzed using a one-way Analysis of Variance (ANOVA) with the confidence interval set at the 95% level. The results showed that at a turbidity level of 100 NTU, the predation period of Siamese fighting fish had been altered. In the period of 0-2 min, the predation rate decreased significantly. Meanwhile, the predation rate increased significantly during the period of 2-4 and 8-10 min. This finding should be considered to support POME remediation management, especially turbidity parameters.Keywords:POMEFeeding periodForaging areaTurbidity
Performance of intensive vannamei (Litopenaeus vannamei) culture at low salinity Annisa Bias Cahyanurani; Mochammad Heri Edy
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.11.3.25565

Abstract

Intensive aquaculture systems that are not managed properly often cause problems that disrupt the balance of the environment so that shrimp are susceptible to disease. One of the aquaculture innovations that have been developed to minimize disease impact is shrimp farming with low salinity. This study aims to determine the performance of intensive Litopenaeus vannamei shrimp culture with low salinity. This study used quantitative descriptive analysis with a purposive sampling technique in three ponds for three maintenance cycles. The result of the study on three cycles of vannamei shrimp culture with low salinity overall found that productivity ranged from 2.35 to 3.69 kg/m2. ADG values in aquaculture ponds ranged from 0.26 – 0.36 g/day. The survival rate ranged from 61% to 98%, and the feed conversion ratio ranged from 1.01 to 1.62. The survival rate tends to increase, and FCR value tends to decrease in 3 cycles of cultivation. Water quality including temperature, dissolved oxygen, pH, phosphate, ammonia, and TOM indicate the optimal range based on water quality standards for intensive vannamei shrimp culture (SNI 01-7246-2006). At the same time, nitrite and alkalinity exceed the SNI standard but this nitrite and alkalinity level could still be tolerated by vannamei shrimp during the rearing period.  Overall, water quality during the rearing period can still support the growth of vannamei shrimp. The above result showed that vannamei shrimp culture at low salinity (6-8 mg L-1) has the potential to be developed.Keywords:Intensive culture Litopenaeus vannamei Low salinityProductivity 
The Bintan MOS development: contribution of ideas to realize Nusantara marine observation network Dony Apdillah; Indra Jaya; Muhammad Iqbal; Ratih Deswati; Mahesa Glagah; Bili Kusumah; Agung Tri Nugroho; Imam Syafi’i
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.10.1.18181

Abstract

Several marine research have attempted to design a data observation system using Internet of Things (IoT). In the future, this system is predicted to become a necessity for marine researchers as a strategic technology to continuously access data. Therefore, this study provides information on the development and application of observation and data collection systems using IoT. The coastal weather and tidal data were obtained via the automatic coastal weather station and acoustic gauge respectively. Meanwhile, the various research activities commenced in July, 2018. In the first year, an operational observation system was developed, while comprehensive baseline data such as air temperature, humidity, wind speed, and sea surface level were also collected. This collection system is reliable, provides real-time data, and easily accessible with internet connection. Furthermore, the Bintan Marine Observation System (The Bintan MOS) is also suitable for other uses such as; monitoring water quality and marine mammals, as well as disaster mitigation. The adoption of this system by other sectors potentially conditions marine researchers for data exchange, to fully understand the fluctuations in coastal weather of Western and Eastern Indonesia as well as the tropical and sub-tropical marine weather. This study successfully developed the Bintan MOS, capable of providing reliable information both off-line and real-time.Keywords:Marine observation systemCoastal weatherTidalBintan

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