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Journal of Marine Resources and Coastal Management
Published by Universitas Islam Negeri Sunan Ampel
ISSN : -     EISSN : 27220966     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
Journal of Marine Resources and Coastal Management is a peer-reviewed journal published biannually by the Marine Science Departement, Faculty of Science and Technology, UIN Sunan Ampel. The Editors welcome contributions from research, which consider marine natural resources and coastal area with emphasis on environmental, technological, economic, institutional and policy aspects of conservation and utilization of marine resources and coastal zone management practices.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 67 Documents
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Structure of reef fish communities in Gili Noko Island waters, East Java, Indonesia Ramadhanu, Rizky Akbar; Nugraha, Dimas Rizal Wahyu
Journal of Marine Resources and Coastal Management Vol. 6 No. 1 (2025)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v6i1.2298

Abstract

The coral reef ecosystems around Gili Noko Island, Bawean, Indonesia serve as one of the main sources of livelihood for the local community and provide essential habitat for various marine biota, particularly reef fish. This study aimed to assess the structure of the reef fish community in the area. The research was conducted from April to June 2024 using the Underwater Visual Census (UVC) method. The results recorded the presence of seven reef fish families: Acanthuridae, Apogonidae, Balistidae, Caesionidae, Chaetodontidae, Ephippidae, and Scaridae. The fish abundance index across all station points ranged from 1.50 ind/m² to 1.65 ind/m², indicating a relatively high abundance. The reef fish diversity index (H') at all stations was categorized as high, the evenness index (E) also fell within the high category, while the dominance index (D) was categorized as low. These findings suggest that the reef fish community structure in the waters around Gili Noko Island is both diverse and evenly distributed, with no single species dominating the ecosystem.
Comparative tidal analysis using Admiralty and Least Square methods at Tanjung Perak Port, Surabaya, Indonesia Calista, Tsabitah Nandiantara; Nadar, Harman; Sawiji, Asri; Fahmi, Muhammad Yunan
Journal of Marine Resources and Coastal Management Vol. 6 No. 1 (2025)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v6i1.2315

Abstract

This study evaluates tidal predictions using the Admiralty and Least Square methods by comparing their performance against real-time measurement and prediction data at Tanjung Perak Port, Surabaya, East Java. The analysis focuses on differences in harmonic components, tidal classifications, and tidal elevations. Results reveal a shift in Formzahl values from Mixed Tide, Prevailing Semidiurnal (1.494) in real-time data to Mixed Tide, Prevailing Diurnal (1.922) in prediction data, primarily due to variations in the amplitude of diurnal and semi-diurnal constituents. High correlation coefficients and low RMSE values demonstrate that both methods are suitable for tidal forecasting, with the Least Square method offering more refined long-term analysis and the Admiralty method showing greater efficiency in short-term tidal calculations. These findings contribute to improved maritime operations, coastal management, and sediment transport modeling, and highlight the importance of continued validation and methodological refinement to enhance predictive accuracy.
Salinity variability and its correlation with IOD and MJO in the Bali Strait: A depth-resolved FFT analysis Annastasya Mulia Paradigma; Asri Sawiji; M. Yunan Fahmi
Journal of Marine Resources and Coastal Management Vol. 6 No. 2 (2025)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Bali Strait connects the Java Sea in the north to the Indian Ocean in the south, and the interaction between these two regions influences the strait’s oceanographic dynamics, including salinity variability. Large-scale climate phenomena such as the Indian Ocean Dipole (IOD) and the Madden–Julian Oscillation (MJO) play important roles in modulating salinity in these waters. This study aims to analyze the correlation between salinity and both the IOD and MJO in the northern and southern parts of the Bali Strait, using data from 1999 to 2023. Descriptive statistical methods and Fast Fourier Transform (FFT) analyses were employed. The results show that in the northern waters, the direct correlation between salinity and the IOD is generally weak, with the highest value of 0.22794 at a depth of 1.54 m. Correlations with the MJO are also weak and predominantly negative. In contrast, the southern waters exhibit stronger correlations, particularly between salinity and the IOD, with the highest correlation of 0.29537 at a depth of 25.21 m. FFT analysis further supports these findings, indicating that the IOD exerts a more dominant influence on salinity variability than the MJO, especially at shallow depths. Overall, the IOD has a more significant and consistent impact on salinity variability in the Bali Strait, particularly in the southern region, while the influence of the MJO remains relatively weak.
Topographic change analysis and flood risk assessment in Jepara Regency, Indonesia, using GIS-based multi-criteria spatial analysis Gymnastiar, Achmad Raihan; Ardasyah, Aksatria Krisna; Sawiji, Asri; Santoso, Eko Hadi
Journal of Marine Resources and Coastal Management Vol. 7 No. 1 (2026)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v7i1.2301

Abstract

Jepara Regency, located on the northern coast of Central Java, Indonesia, with a coastline of approximately 82.72 km, has experienced significant topographic changes driven by natural processes and anthropogenic activities. These changes, combined with increasing rainfall variability, have heightened flood risk in several parts of the region. This study aims to analyze topographic changes between 2014 and 2023 and to assess flood risk by integrating rainfall intensity and slope characteristics using a GIS-based multi-criteria spatial analysis approach. This research utilizes secondary spatial and climatological data. Rainfall data for the period 2020–2022 were obtained from the Meteorology, Climatology, and Geophysics Agency (BMKG) and classified according to rainfall intensity levels. Topographic and slope data were derived from the National Digital Elevation Model (DEMNAS) and the Indonesian Topographic Map (RBI). The analysis involved slope classification, scoring, weighting, and weighted overlay techniques using Geographic Information System (GIS) tools implemented in ArcMap software. The results indicate pronounced seasonal rainfall variability in Jepara Regency, with the lowest rainfall intensity occurring in July and the highest intensities recorded between December and January, ranging from 10.45 to 85.91 mm/day. Topographic analysis shows that areas with moderate slopes (8–15%) are vulnerable to extreme weather events and potential slope instability, while flat areas with slopes of 0–1% exhibit high susceptibility to flooding due to limited surface runoff capacity and land-use conditions. The total flood-prone area identified covers approximately 686.6 ha. Overall, the integration of rainfall and topographic parameters through GIS-based multi-criteria spatial analysis proves effective in identifying flood-risk zones and provides valuable input for spatial planning, disaster risk reduction, and coastal management in Jepara Regency.
Analysis of water quality, feed efficiency, and growth performance of vannamei shrimp in circular HDPE ponds Mawaddah, Naflah; Halim, Abdul; Ariwibowo, Dimas Agung
Journal of Marine Resources and Coastal Management Vol. 6 No. 2 (2025)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v6i2.2313

Abstract

Intensive shrimp aquaculture has grown rapidly in recent years, requiring efficient pond management systems to ensure sustainability and productivity. This study aimed to evaluate the cultivation performance of Litopenaeus vannamei (vannamei shrimp) in High-Density Polyethylene (HDPE) round ponds at a shrimp aquaculture facility in Prigi, East Java, Indonesia. Two ponds (BO1 and BO2) were observed through various cultivation phases, including pond and media preparation, feed and water quality management, growth monitoring, harvesting, disease prevention, and waste treatment. The ad libitum and blind feeding methods were used without feeding rate calculations, and water quality parameters were monitored regularly. Results showed that pond BO1 performed well with a survival rate of 72.69%, an FCR of 1.37, and steady growth (ABW and ADG), indicating effective management. In contrast, pond BO2 experienced significant mortality and poor growth due to early stress from excessive water current caused by oversized paddlewheels, resulting in a survival rate of only 6.95% and an FCR of 4.41. Waste management was conducted using a sedimentation-based Wastewater Treatment Plant (WWTP) without the use of chemicals. These findings highlight the critical role of mechanical suitability and integrated management practices in ensuring successful shrimp cultivation in intensive systems.
Biochemical detection and characterization of Vibrio spp. in whitelag shrimp (Litopenaeus vannamei) aquaculture system A'rifin, Nurul Maulia; Suhermanto, Achmad; Safitri, Nur Maulida; Suherman
Journal of Marine Resources and Coastal Management Vol. 7 No. 1 (2026)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v7i1.2400

Abstract

Vannamei shrimp (Litopenaeus vannamei) is a major aquaculture commodity with high economic value, contributing significantly to foreign exchange earnings. Suboptimal management of the aquaculture environment can promote the proliferation of pathogens, particularly Vibrio spp., leading to production losses from vibriosis. This study aimed to biochemically characterize Vibrio spp. isolated from vannamei shrimp aquaculture and to determine the dominant species. Water samples were collected from three brackish water aquaculture tanks in Serang, Indonesia, and cultured on TCBS agar, Hi Chrome Vibrio, and TSA media. Pure isolates were subjected to a series of biochemical tests, including Gram staining, catalase, oxidase, motility, carbohydrate fermentation, aerobic–anaerobic growth, salinity tolerance, MR-VP test, decarboxylase, indole, KCN, urease, and gas from glucose. The isolates were Gram-negative, catalase- and oxidase-positive, motile, curved bacilli, fermentative, and exhibited variations in carbohydrate fermentation patterns (glucose, sucrose, lactose). All isolates grew at 6% salinity and 37°C, with some variations in characteristics between tanks. Based on the biochemical profiles, the isolates were consistent with Vibrio parahaemolyticus, highlighting the need for proper environmental management to mitigate the risk of vibriosis in vannamei shrimp aquaculture systems. These findings underscore the importance of regular water quality monitoring and biosecurity measures to prevent disease outbreaks.
Assessment of mangrove rehabilitation success at PT Kandelia Alam, Kubu Raya Regency, Indonesia Jayanti, Ucy; Helena, Shifa; Sofiana, Mega Sari Juane; Ihsan, Nur Ramadhani
Journal of Marine Resources and Coastal Management Vol. 7 No. 1 (2026)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v7i1.2427

Abstract

Mangrove forests provide essential ecological and economic services; however, increasing human activities and natural disturbances have led to widespread degradation, highlighting the need for effective rehabilitation efforts. This study evaluated the success of mangrove rehabilitation in the concession area of PT Kandelia Alam, Kubu Raya Regency, Indonesia, using indicators of survival rate, plant height, leaf number, and environmental conditions. Data were collected under three site conditions (flooded, flowing-water, and unflooded areas) across two observation stations, each consisting of three measurement plots. Each plot measured 20 × 50 m and contained a 20 × 20 m subplot representing 100 individual plants, with observations conducted up to T₀ + 9. The results indicated that rehabilitation success at Stations I and II was moderate, with survival rates of 74.33% and 72.17%, respectively. Average plant heights were 50.60 cm at Station I and 53.66 cm at Station II, with an average of five leaves per individual at both stations. The Rhizophora  mucronata and Bruguiera gymnorrhiza species exhibited better adaptability in flowing-water and unflooded areas, whereas the Rhizophora apiculata species showed lower survival rates, particularly under flooded conditions. Environmental parameters at both stations were generally within suitable ranges for mangrove growth, including salinity of approximately 22 ppt, water temperature of 28°C, water pH of 7, soil temperature of 30–31°C, soil pH of 5.5, and substrates dominated by silty clay and silt. These findings suggest that while survival rates indicate moderate rehabilitation success, vegetative growth remains suboptimal, emphasizing the importance of site–species matching, hydrological suitability, and early-stage maintenance to enhance long-term mangrove rehabilitation outcomes.
The role of coastal communities in transboundary marine resources management in selected Sub-Saharan African cities Oluwayemisi, Ogunleye
Journal of Marine Resources and Coastal Management Vol. 7 No. 1 (2026)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v7i1.2428

Abstract

This paper examines the critical role of coastal communities in managing transboundary marine resources across selected Sub-Saharan African cities, including Lagos, Abidjan, Accra, Mombasa, and Cape Town. Using a systematic review of recent studies, reports, and policy documents, the research investigates governance frameworks, environmental challenges, and the integration of indigenous and local knowledge (ILK) in shared marine ecosystems. Findings reveal that, while regional conventions provide legal foundations for cooperation, weak enforcement, limited community participation, and socio-political inequalities hinder effective transboundary governance. Coastal communities face mounting environmental pressures from climate change, pollution, and habitat degradation, all of which threaten livelihoods and biodiversity. The study highlights successful community-based management initiatives and underscores the importance of inclusive governance, capacity building, and co-management approaches in enhancing resilience. Policy recommendations advocate for stronger stakeholder engagement, integration of ILK, and interdisciplinary research to support sustainable marine resource management. This work contributes to understanding the socio-ecological complexities of marine governance and offers practical pathways for strengthening community involvement in transboundary resource stewardship in Sub-Saharan Africa.
The effect of chitosan addition on the tensile strength characteristics of carrageenan from Eucheuma spinosum Margareta, Tanti; Ningsih, Ellis Nurjuliasti; Hendri, Muhammad; Amal, Ikhlasul
Journal of Marine Resources and Coastal Management Vol. 7 No. 1 (2026)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v7i1.2432

Abstract

The accumulation of non-biodegradable plastic waste and its detrimental effects on the environment underscore the imperative to develop sustainable packaging alternatives, such as edible films. In this study, the incorporation of chitosan was investigated to enhance the mechanical properties of an edible film based on carrageenan extracted from the seaweed Eucheuma spinosum. The carrageenan was extracted from E. spinosum cultivated in the coastal waters of Ketapang, Lampung, Indonesia and its yield and dry shrinkage were determined. Edible films were then fabricated by varying the concentrations of carrageenan and chitosan, with glycerol employed as a plasticiser. Characterisation included tensile strength testing, thickness measurement using a micrometer, and morphological analysis via scanning electron microscopy (SEM). The results indicated that tensile strength increased with the addition of chitosan up to an optimal concentration; beyond this point, further addition resulted in a decline in tensile strength. The maximum tensile strength achieved was 15.31 MPa, and film thickness ranged from 0.06 to 0.20 mm, thereby meeting the requirements of the JIS Z 1707:2019 standard. Morphological analysis revealed a smooth surface but a non-homogeneous particle distribution, suggesting that the mixing process was not yet fully optimised. Overall, the combination of carrageenan and chitosan significantly improved the physical and mechanical properties of the edible film, indicating its potential as a safe, biodegradable, and environmentally friendly food-packaging material.
Effects of culture conditions on proteolytic activity of Staphylococcus saprophyticus isolated from a traditional fermented condiment Duanty, Putri Valentina; Pramono, Heru; Nirmala, Dwitha
Journal of Marine Resources and Coastal Management Vol. 7 No. 1 (2026)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v7i1.2433

Abstract

Madura petis is a traditional fermented condiment from East Java, Indonesia, made from shrimp or fish cooked with sugar to produce a rich, savory paste. Its characteristic umami flavour develops naturally during storage through spontaneous fermentation involving proteolytic microorganisms. The aims of the study were to analyze the production of protease in different culture condition and nutrition of Staphylococcus saprophyticus (strain PMB1-7) isolated from petis. The isolate was a Gram-positive, catalase-positive coccus that does not ferment mannitol and is resistant to novobiocin, a typical of S. saprophyticus. Growth profiling revealed it reached stationary phase after 12 h of culture. Protease activity assays were conducted under different media, pH levels, and incubation times to determine optimal enzymatic conditions. The highest proteolytic activity occurred in Nutrient Broth (proteolytic index: 1.09 ± 0.01), at neutral pH (1.22 ± 0.10), and after 24 hours of incubation (1.20 ± 0.00). These results offer valuable insights into the enzymatic behavior of S. saprophyticus during petis fermentation and provide a foundation for developing controlled fermentation approaches to enhance the flavour quality of traditional Indonesian condiments.

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