cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Ichsan Setiawan
Contact Email
ichsansetiawan@usk.ac.id
Phone
+6285220189228
Journal Mail Official
depik@usk.ac.id
Editorial Address
Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia
Location
Kab. aceh besar,
Aceh
INDONESIA
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
 51   52   53   54   55 
Analysis of water quality in watershed using heavy metal pollution index Ujianti, Rizky Muliani Dwi; Novita, Mega; Burhanuddin, Aan; Muflihati, Iffah; Agung, Lukman Anugrah; Ingsan, Roies Nur; Wafa, Alfan Najihil; Anggraeni, Cerly Nurlita; Muzakki, Tsaqif
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35680

Abstract

The quality of rivers and coastal is gradually deteriorating along with rapid population and socio-economic growth in the watershed to the estuary. Sampling was conducted in Semarang city rivers and Demak district rivers, Central Java Province, Indonesia, at four different stations according to geography and designation: river basins, estuaries, and rivers affected by industrial and domestic waste. Research time is August - October 2023 during the dry season. The research method uses descriptive analysis to determine the variables to be studied based on the research results in the field. River and coastal pollution levels are measured using the Heavy Metal Pollution Index method, with several water quality parameters measured, such as BOD, COD, Ammonia, TDS, TSS, and Total Coliform. In contrast, the heavy metal parameters measured are Cd, Ni, Zn, Cu, and Pb. The heavy metals and water quality parameters analyzed guided by Government Regulation of the Republic of Indonesia Number 22 of 2021 class 2. Water quality and heavy metal analysis use the Heavy Metals Pollution Index (HPI). HPI is an assessment method that shows the influence of individual heavy metal compounds on overall water quality. The results show that the status of non-metal water quality in terms of HPI analysis shows that Sampling Station (SS) 1 is 224.30 (unsuitable for drinking), SS 2 is 645.98 (unsuitable for drinking), SS 3 is 320.09 (unsuitable for drinking), SS 4 is 252.09 (unsuitable for drinking), and metal parameters in terms of HPI analysis show that SS1 is 26.43 (good), SS2 is 2345.84 (unsuitable for drinking), SS3 is 26.43 (good), and SS4 is 12.64 (excellent). The conclusions from these four research areas indicate that the status of water quality, according to the HPI is unsuitable for drinking, however, indications of heavy metals in 2 areas are still tolerable, namely good and excellent. The decline in water quality in the research area is caused by domestic and industrial waste polluting the waters. In conclusion, this river area requires further management from the collaboration of various stakeholders.Keywords:Water QualityHeavy MetalCoastalWatershed
Suitability water quality parameters for Eucheuma cottonii culture at Majene Waters Arbit, Nur Indah Sari; Lestari, Dian; Erwin, Erwin; Carong, Supajo Razasli; Syamsudin, Fadli; Mannan, Abdul; Thabrani, Mulihartati
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35688

Abstract

Seaweed cultivation in Majene Regency, West Sulawesi, has not experienced significant development as in neighboring Polewali Mandar and Mamuju Regency. This can be seen from the absence of active seaweed cultivation activities in Majene Regency. The aim of this research is to assess the physical and chemical aspects of water to determine the suitability of locations for cultivating Eucheuma cottonii seaweed in Majene waters. The method used to measure ecological suitability included parameters such as temperature, salinity, dissolved oxygen (DO), pH, phosphate, nitrate and salinity. Subsequently, the data is scored to determine suitability classes: suitable (S1) with values ranging from 37 to 48, moderately suitable (S2) with values between 36 and 25 and non sultable (S3)/N) with value 25. The results showed that after applying weighting and scoring, locations such as East Banggae, Pamboang 1, Tubo Sendana, and Sendana 2 showed suitable scoring result with scores of 39, 39, 40, and 40. While locations such as Pamboang 2, Pamboang 3, Malunda, and Sendana 1 showed moderately suitable scoring results with scores of 33, 33, 34 and 36. Majene waters have potential areas for seaweed cultivation based on classes S1 (suitable) and S2 (moderately suitable).Keywords:SeaweedMajene WatersLocation SuitabilityWater QualityAquaculture
Effects of dietary supplementation with 17-estradiol on the Steroid Hormone Levels, Gonadosomatic Index, and Gonadal Histology of Female Silver Pompano (Trachinotus blochii) Broodstock Azizah, Azizah; Sarida, Munti; Adiputra, Yudha Trinoegraha; Susanto, Gregorius Nugroho; Setyawan, Agus
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35115

Abstract

Silver pompano (Trachinotus blochii) is a mariculture commodity with fast growth characteristics and easy adaptation to the environment. However, the production of its seeds is hindered by the maturation of the parent's gonads out-side the spawning season. Hormonal approaches are needed for the maturation of the parent's gonads. The aim of this study is to investigate the level of steroid hormones, gonadosomatic index, and gonad histology in female silver pompano (Trachinotus blochii) broodstock after dietary supplementation with 17-estradiol. This research is crucial for the advancement of effective and efficient techniques for rearing this fish. The study used a completely randomized design (CRD) consisting of three different 17estradiol concentrations (0 mg/kg (E1), 30 mg/kg (E2), and 60 mg/kg (E3) fed to female silver pompano broodstock for 30 days, beginning at initial feeding, each with eight individual replicates. Absolute body weight growth, steroid hormone levels, gonadal maturation index, gonadal histology, fecundity, and egg diameter of female silver pompano broodstock were all examined in this study. The incorporation of 17-estradiol hormone into the sustenance amplifies the reproductive capabilities of the female silver pompano broodstock. The inclusion of 17-estradiol hormone in the diet renders the most elevated values regarding fecundity and egg diameter in the female silver pompano broodstock. Histological examinations expose that the development of the gonads in the female broodstock treated with 17-estradiol hormone progresses towards maturation. The inclusion of 17- estradiol hormone in the diet at doses of 20 and 60 mg/kg feed yields the highest values in terms of fecundity and egg diameter in female silver pompano broodstock.Keywords:17-estradiolGonadal histologyGonadosomatic indexSteroid hormoneSilver pompano
Probiotic utilization enhances vannamei (Litopenaeus vannamei) growth and survival ratio during dry and rainy season Budiman, Budiman; Irmawan, Fadly; Sasongko, Lukas Wibowo; Tumion, Frangky Fransiskus
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46870

Abstract

The study was conducted at the Vannamei Shrimp Pond Unit of the Pontianak State Polytechnic Technology Excellence Center, Mempawah Regency, and the Vannamei Shrimp Enlargement Unit of the Vocational and Nautikan High School, Sambas Regency. The study aims to determine the growth performance and survival of vannamei shrimp feed conversion intensively raised using probiotics in the dry season (March-August) and the rainy season (September-February) in 2022-2023. PL-15 vannamei shrimp fry were stocked at a density of 120/m2 in 2 pond plots with an area of 2,500 m2 and 2 pond plots of 3000 m2. The data collection method used observation and participation in the cultivation process, starting from land preparation, feed management, and water quality to harvest. The data were analysed descriptively, and a literature review was conducted to compare the technical activities applied in the field with the supporting theoretical basis. From the 120-day maintenance activity in the dry season, the average value of SR was 98.27%, biomass 26,749.7 kg, ABW 41.58 gr/pcs, ADG 0.27 gr/pcs, this shows relatively better results when compared to the rainy season maintenance period with an average value of SR 85.73, Biomass 20,794.6 kg, ABW 35.11 gr/pcs, ADG 0.21gr/pcs.Keywords:ProbioticsVannamei ShrimpIntensiveDry SeasonRainy Season
Identification of the distribution pattern of macroalgae caulerpa racemosa in Ternate City Andriani, Rovina; Achmad, Muhammad Djanib; Najamuddin, Najamuddin; Titaheluw, Syahnul Sardi
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47471

Abstract

Coastal ecosystems in Ternate have high biodiversity, including the macroalga Caulerpa racemosa, which contributes to ecosystem stabilization and mitigation of ocean acidification. However, environmental degradation due to human activities poses a serious threat, so analyzing the distribution and density of macroalgae is important for sustainable ecosystem management. This study aimed to analyze the distribution pattern and density of C. racemosa in Kastela and Gamalama waters, Ternate City. Data collection was conducted from May to August 2024 using the line transect method with 1x1 m quadrants in two research locations. Each site had three 50 m long transect lines with five quadrants per transect. Density was calculated based on the number of individuals per unit area, while distribution patterns were analyzed using the Morisita index (Id). Environmental data such as temperature, salinity and pH were also measured to understand the factors affecting macroalgae distribution. Spatial analysis using GIS software visualized distribution patterns. Results showed that C. racemosa had a concentrated distribution pattern (Id 1) in both study sites, with higher average densities in Kastela waters than Gamalama. Environmental factors, including temperature and substrate type, significantly influenced the distribution of this species. This study provides important data to support ecosystem-based management and sustainable coastal conservation, and fills an information gap on the impacts of ecological pressures on macroalgae in this region.Keywords:Caulerpa racemosaTernateDistributionCoastal Ecosystem
The spatial distribution of coral diversity and conection to the oceanography conditions of Tidore Island Waters Angkotasan, Abdul Motalib; Siolimbona, Abdul Ajiz; Salnuddin, Salnudin; Ismail, Firdaut; Daud, Asmar Hi; Natih, Nyoman Metta N
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47445

Abstract

The Optimal coral reefs are distributed in shallow waters between 0 and 30 m deep, influenced by the hydro-oceanographic variability of the waters. Globally, corals are distributed in various forms of water predominantly found in the Coral Triangle region. This study aims to examine the spatial distribution of coral biodiversity in the Tidore Island Waters. This study was conducted in the Tidore Island Waters at three research stations, namely Tugulufa Station, Toloa Station and Tanjun Konde Station. This study analyzed the spatial distribution of coral and the relationship between coral biodiversity and the hydro-oceanographic conditions of the Tidore Island waters. The results showed that the highest coral diversity was found at Toloa Station, with the largest area being the Acropora tabulate coral life form. Acropora coral species were found throughout the research location, with the highest percentage of cover found at Toloa Station. Temperature and salinity variables are the main characteristics in the three research locations. Temperature has a role and main characteristics in Toloa Station. The spatial distribution of Acropora corals is related to temperature and salinity variability.Keywords:Coral reefTidore waterTemperatureSalinity
Exploring the trophic interactions in the coral reef ecosystem at the coastal area of Ternate Island using Ecopath model Rumagia, Faizal; Ahmad, Aditiyawan; Kadir, Irwan Abdul
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46903

Abstract

The Ecopath mass-balanced model was employed to elucidate the trophic structure and interaction, energy flow, and ecosystem properties of the coral reef ecosystem in the coastal area of Ternate Island. The model comprised 30 functional ecological groups, of which 29 were living groups and one was a group of detritus. The trophic structure of the model exhibited a range of values, from 1.0 for primary producers and detritus to 3.81 for the top predator. The resulting trophic aggregation comprises six effective trophic groups, with the largest energy flow originating from zooplankton and benthic organisms in trophic level II. The transfer efficiency is predominantly derived from detritus organisms, in comparison to that derived from phytoplankton as the primary producer. The ratio of total primary production per total respiration indicated that the coral reef ecosystem was at a developmental stage. The coral reef ecosystem exhibited a low ecological efficiency for the fishery gross efficiency. Mixed trophic impact analysis indicated that predators exerted a negative impact on their prey, whereas planktonic organisms exerted a positive impact on the majority of fish functional groups. The comparison of the model with other studies provided information that could inform the development of appropriate fisheries management guidelines for this area based on ecosystem properties.Keywords:Coral reef ecosystemEcopathEcosystem propertiesTernate IslandTrophic interaction
Comparative analysis of income between fishing businesses with bottom longlines and floating traps in Sanga-Sanga Sub District Kutai Kartanegara District Sudewi, Sudewi; Helminuddin, Helminuddin; Fitriyana, Fitriyana; Abdusysyahid, Said
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.48210

Abstract

The fishing business in Sanga-Sanga Sub-district is carried out by fishermen who use different fishing gear such as basic longline and floating bubu. This study aimed to analyze the income from the fishing business by basic longline fishermen and floating bubu and whether there is a real difference between the income of basic longline fishermen and floating bubu. Based on the analysis result, it was known that the average income of fishermen who use basic longlines was Rp 46,579,291.67/year while fishermen who use floating bubu is Rp 9,963,200.00/year. The statistical analysis results of the unpaired two-sample t-test showed that the calculated t value was 5.905 greater than the t table value of 2.447 and had a significance value of the t test which was smaller than 0.05. This meant that there was a significant difference in income between basic longline fishermen and floating bubu fishermen.Keywords:Financial AnalysisFishing GearIncome DifferencesKutai Kartanegara
Assessing tuna populations around fads in Tabam waters for coastal management Ridwan, Mutmainnah; Umahuk, Alfi; Djamhur, Martini; Recar, Yuliana; Ridwan, Saptariani Putri; Miswar, Edy; Edwarsyah, Edwarsyah
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.48207

Abstract

Tabam waters are waters in Ternate City where the average population works as fishermen using gillnet fishing gear with the target fish being tuna (Eutynnus affinis) locally called Tongkol. Fishing activities in this area are generally carried out around FADs. Fishing that is carried out on an increasing basis and accompanied by an increase in gillnet fishing gear can endanger the sustainability of mackarel tuna/ tuna fish/komo tuna. Therefore, to maintain the sustainability of tuna fish resources in Tabam waters, an assessment of the biological status is needed which includes the structure of length, weight, circumference, growth patterns, and age groups. Establish guidelines for fishermen on the appropriate size of tuna to be harvested in order to preserve the sustainability of the tuna population. This research was conducted in December 2018-March 2019, using a sample size of 200 fish, using a survey method. The survey was conducted by examining the technical characteristics of gillnet fishing gear, FAD aids, and tuna catches. The results showed that the average fish caught was gilled with an isometric growth form and the average age group of tuna fish was around 21.7 cm, 17.2 cm, 18.9 cm, and 21.0 cm.Keywords:GillnetFADSAsessingKomoTunaTabam
Multiplier Effect Analysis of Tulung Ni Lenggo Lake Management as Sustainable Ecotourism Yuliana, Irma; Susilo, Heru; Irawan, Irman; Fitriyana, Fitriyana
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.48205

Abstract

Tulung Ni Lenggo is a lake area in Berau Regency that has been opened as an ecotourism location since 2016. The manager chose the ecotourism concept as an effort to implement the concept of sustainable development. This study aimed to analyze the direct, indirect and advanced economic impacts and multiplier effects of ecotourism of Tulung Ni Lenggo Lake in Berau Regency. The analysis method used was the multiplier effect economic impact analysis method. The direct economic impact on the business unit was IDR 273,043,166.67/year, the indirect economic impact was IDR 369,096,833.33/year and the further economic impact was IDR 173,880,000.00/year. The value of the Keynesian multiplier effect was 0.07, the value of income multiplier ratio type 1 was 2.35, and the value of income multiplier ratio type 2 was 2.99. This means that the management of Lake Tulung Ni Lenggo as sustainable ecotourism had been able to provide an economic impact on business unit income and labor in the ecotourism area, which also impacts increasing consumption and the local economy.Keywords:Economic effectTulung Ni LenggoLakeBerau Regency

Page 53 of 57 | Total Record : 563

 51   52   53   54   55 

Filter by Year

2012 2025


Reset
Filter By Issues
All Issue Vol 14, No 4 (2025): December 2025 Vol 14, No 3 (2025): SEPTEMBER 2025 Vol 14, No 2 (2025): JUNE 2025 Vol 14, No 1 (2025): MARCH 2025 2025: Special Issue ICMF Vol 13, No 3 (2024): DECEMBER 2024 Vol 13, No 2 (2024): AUGUST 2024 Vol 13, No 1 (2024): APRIL 2024 Vol 12, No 3 (2023): DECEMBER 2023 Vol 12, No 2 (2023): AUGUST 2023 Vol 12, No 1 (2023): APRIL 2023 Vol 11, No 3 (2022): DECEMBER 2022 Vol 11, No 2 (2022): August 2022 Vol 11, No 1 (2022): April 2022 Vol 10, No 3 (2021): December 2021 Vol 10, No 2 (2021): August 2021 Vol 10, No 1 (2021): April 2021 Vol 9, No 3 (2020): December 2020 Vol 9, No 2 (2020): August 2020 Vol 9, No 1 (2020): April 2020 Vol 8, No 3 (2019): December 2019 Vol 8, No 2 (2019): August 2019 Vol 8, No 1 (2019): April 2019 Vol 7, No 3 (2018): December 2018 Vol 7, No 2 (2018): August 2018 Vol 7, No 1 (2018): April 2018 Vol 6, No 3 (2017): December 2017 Vol 6, No 2 (2017): August 2017 Vol 6, No 1 (2017): April 2017 Vol 5, No 3 (2016): December 2016 Vol 5, No 2 (2016): August 2016 Vol 5, No 1 (2016): APRIL 2016. Vol 4, No 3 (2015): DECEMBER 2015 Vol 4, No 2 (2015): AUGUST 2015 Vol 4, No 1 (2015): APRIL 2015 Vol 3, No 3 (2014): Desember 2014 Vol 3, No 2 (2014): August 2014 Vol 3, No 1 (2014): April 2014 Vol 2, No 3 (2013): December 2013 Vol 2, No 2 (2013): August 2013 Vol 2, No 1 (2013): April 2013 Vol 1, No 3 (2012): December 2012 Vol 1, No 2 (2012): August 2012 Vol 1, No 1 (2012): April 2012 More Issue