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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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Cocofoamblocks: The potential of styrofoam and coconut fiber as paving blocks Asarudin, Tifa Alfatiha; Wahyunita, Fitrana; Anggraini, Sarah Dwi
Journal of Marine Resources and Coastal Management Vol. 5 No. 1 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i1.2109

Abstract

Styrofoam waste is an inorganic material that cannot decompose and will continue to accumulate if not recycled. Styrofoam has relatively light properties, can withstand heat, and is resistant to corrosives. In coastal and marine environments, styrofoam waste can cause significant pollution and damage to marine ecosystems. However, when used in the production of paving blocks, styrofoam waste has a disadvantage: it results in a low compressive strength value. To address this, coconut fibers are used to strengthen the paving blocks because coconut fibers have tensile strength, making them durable, lightweight, and elastic. The purpose of this study was to determine the mechanical properties of paving blocks made with a mixture of styrofoam and coconut fibers (Cocofoamblocks). The method used in this study is a quantitative approach with experimental research. The results of the water absorption test show that the absorption rates of the Cocofoamblocks is in the range of 17.55% to 19.28%. This indicates that the Cocofoamblocks can be categorized as suitable for use. The results of the compressive strength test show that the average value for sample BT1 is 0.5 MPa, while samples BT2 and BT3 have values of 1.1 MPa and 2.4 MPa, respectively. Based on these results, it is evident that the compressive strength of the Cocofoamblocks can be categorized as unsuitable for use. This is because the Cocofoamblocks lack coarse aggregates, and the excessive amount of water used in the mixture during production further reduces their compressive strength. This study contributes to efforts to reduce waste pollution in coastal and marine areas, as well as to creating environmentally friendly solutions that can enhance the sustainability of development in coastal regions.
Assessing vulnerability and community knowledge of climate change impacts on Bawean Island, Indonesia Mubarok, Mohammad Fahmi; Sawiji, Asri; Perdanawati , Rizqi Abdi
Journal of Marine Resources and Coastal Management Vol. 5 No. 1 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i1.2170

Abstract

Bawean Island, located in Gresik Regency, is highly vulnerable to the impacts of climate change due to its coastal position. One of the significant impacts is sea level rise, which increases the risk of tidal floods. Effective and timely decision-making is essential to mitigate and manage these risks. This study focuses on mapping vulnerability and assessing the level of community knowledge regarding climate change to evaluate the island's susceptibility. The objectives include identifying data, measuring community knowledge levels, and analyzing vulnerability. The findings reveal that 323 hectares fall into the vulnerable category, while 1 hectare is classified as very vulnerable. The community's knowledge level is predominantly high, with 73% of respondents scoring high and 27% moderate. Inundation predictions for the next 20 years, based on a sea level rise of 3 cm per year, estimate an inundation area of 319,398 hectares in 2024 with a sea level rise of 2.64 cm. By 2044, the highest high-water level (HHWL) of 4.00 cm could inundate an area of 442,625 hectares. These findings underscore the urgent need for adaptation strategies to mitigate the risks of tidal floods and enhance the resilience of coastal communities on Bawean Island.
Assessment of sea level rise and tidal flood vulnerability in the coastal region of Jepara, Central Java, Indonesia Christiananda; Sawiji, Asri; Santoso, Eko Hadi
Journal of Marine Resources and Coastal Management Vol. 5 No. 2 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i2.2201

Abstract

The coastal region of Jepara, Central Java, is increasingly vulnerable to environmental hazards due to rising sea levels, land subsidence, and climatic variability. Recent public concerns regarding the potential submergence of parts of Jepara and the possible reappearance of the ancient Muria Strait underscore the need for a scientific assessment of regional coastal stability. This study aims to evaluate the impacts of sea level rise on the vulnerability of Jepara’s coastal areas to tidal inundation. Using secondary data from 2013 to 2024, the analysis includes trends in mean sea level (MSL), sea surface temperature (SST), and documented land subsidence in nearby coastal cities. The results indicate an average annual MSL increase of 4.23%, with projections reaching up to 3.83 meters by 2050 if current trends persist. SST also shows a consistent upward trend, contributing to thermal expansion and sea level rise. Tidal flood mapping reveals that rice fields and coastal settlements are the most affected land uses, with 1,960.66 hectares of agricultural land and 207.48 hectares of residential area exposed to periodic inundation. The compounded effects of sea level rise, SST increase, and subsidence suggest an urgent need for mitigation planning and adaptive infrastructure to reduce future flood risks.
Assessment of seagrass beds and environmental conditions in Gili Noko, Gresik, East Java, Indonesia Fatmala, Agustina; Pryono, Ach. Onky
Journal of Marine Resources and Coastal Management Vol. 5 No. 2 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i2.2207

Abstract

Seagrass beds are critical coastal ecosystems with high biodiversity and significant contributions to nutrient cycling in surrounding waters due to their high productivity. This study focused on the seagrass ecosystem in the waters of Gili Noko, Gresik, East Java, Indonesia. Data collection was conducted using the quadrant transect method, measuring both physical and chemical water parameters, including temperature, clarity, substrate type, salinity, dissolved oxygen, and pH. The results identified two seagrass species, Enhalus acoroides and Thalassia hemprichii, in Gili Noko waters. The total seagrass density was recorded at 6.72 stands/m², while the percentage of seagrass cover was 6.09%, categorized as poor. The diversity index (H') was 0.89, indicating low diversity, whereas the uniformity index (E) was 0.45, and the dominance index (D) was 0.57, both categorized as moderate. Although the physical and chemical parameters of Gili Noko waters are within the optimal range for seagrass growth, the low density and cover highlight significant ecosystem degradation caused by anthropogenic activities and ecological pressures. Conservation efforts, including reducing human impacts and protecting natural habitats, are essential to restore the seagrass ecosystem. Further studies on rhizome growth rates and leaf turnover are recommended to better understand seagrass dynamics and support effective management strategies.
Cultivation practices and performance indicators of vannamei shrimp in HDPE-lined ponds at Prigi Mariculture Installation, Trenggalek, Indonesia Andaya, Fity; Halim, Abdul; Purnama, Candra Eka Hari
Journal of Marine Resources and Coastal Management Vol. 5 No. 2 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i2.2223

Abstract

The development of fisheries potential can be enhanced through various cultivation activities, with shrimp farming being one of the key sectors. This study evaluates the cultivation of vannamei shrimp (Litopenaeus vannamei) in High-Density Polyethylene/HDPE-lined ponds at the Prigi Mariculture Installation, Trenggalek, focusing on pond preparation, media setup, shrimp maintenance, water quality management, and their impact on key performance indicators: survival rate (SR), feed conversion ratio (FCR), average body weight (ABW), and average daily growth (ADG). The study was conducted in four ponds: B1 and B2 (1,350 m³) and B3 and B4 (1,000 m³), stocked with post-larvae at densities of 118-122 individuals/m³. Water quality measurements included 29°C temperature, 15-24 ppt salinity, 6.8-7.7 pH, 7.02–7.78 mg/L dissolved oxygen, and 32-100 cm brightness. Growth rates varied, with the highest ADG at 0.30 and the lowest at 0.0. FCR values ranged from 1.64 (B3) to 1.84 (B4), while SR ranged from 26% to 51%. The presence of pests, such as birds, monitor lizards, and mice, and diseases like Acute Hepatopancreatic Necrosis Disease (AHPND) and White Feces Disease (WFD), were noted. These findings provide valuable insights into optimizing vannamei shrimp farming practices and improving productivity in HDPE-lined ponds.
Echinodermata community structure and ecological implications at Gili Island, Gresik Regency, East Java, Indonesia Irawanti, Elvina; Yogama, Clint Devan
Journal of Marine Resources and Coastal Management Vol. 5 No. 2 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i2.2227

Abstract

This study investigates the abundance, diversity, and distribution of Echinodermata species across three different stations at Gili Island, Gresik Regency, East Java. A total of five species were identified, with four species from the class Asteroidea (Linckia laevigata, Culcita novaeguineae, Protoreaster nodosus, and Acanthaster planci) and one from the class Ophiuroidea (Ophiocoma scolopendrina). The study employed the Belt Transect Method for sampling, and the results revealed varying levels of abundance and diversity among the stations. Station 2, dominated by coral reefs, exhibited the highest abundance (0.16 ind/m²), followed by Station 1 (0.14 ind/m²) with seagrass and macroalgae ecosystems, and Station 3 (0.13 ind/m²) with a mix of coral reefs and macroalgae. The diversity index (H') indicated moderate diversity across all stations, with Station 3 having the highest index value. Additionally, the uniformity index showed high species evenness, particularly at Station 3, and the dominance index was low, suggesting no single species dominated the communities. The study highlights the significant influence of habitat complexity, particularly coral reefs and seagrass beds, on Echinodermata populations. The results underscore the importance of these ecosystems in supporting biodiversity and maintaining ecological balance in marine environments.
Density of gastropods and bivalves in coral reefs of Gili Island, Gresik Regency, Indonesia Wahyunita, Fitrana; Fahmi, M. Yunan
Journal of Marine Resources and Coastal Management Vol. 5 No. 2 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i2.2295

Abstract

Gastropods and bivalves play a crucial role in the marine food web within coral reef ecosystems. This study aimed to identify gastropod and bivalve species and analyze their density in the coral reef ecosystem of Gili Island, Gresik Regency, East Java. Sampling was conducted using the belt transect method (100 meters in length and 5 meters in width), placed parallel to the shoreline at three selected research stations. A total of 19 individuals, representing two families of gastropods and bivalves, were identified. Species density ranged from 0.005 to 0.035 individuals/m², while relative density values ranged from 11% to 78%. The results indicate that the density and distribution of gastropods and bivalves in Gili Island waters are influenced by substrate types and water quality parameters.
Evaluation of vannamei shrimp farming management: A case study at the Prigi Marine Aquaculture Installation, Indonesia Savirah, Annisa Nur; Halim, Abdul; Ariwibowo, Dimas Agung
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.v6i1.2229

Abstract

This study investigates the growth performance, health monitoring, and management practices in the farming of vannamei shrimp at the Prigi Marine Aquaculture Installation (IBL Prigi), Indonesia. Sampling was conducted from Days of Culture (DOC) 40 to harvest, with data on shrimp growth, Average Body Weight (ABW), and size recorded regularly. The results showed consistent growth in shrimp from March to May 2024, with ABW increasing from 1.93 grams to 18 grams over the study period. However, survival rates (SR) were notably low, with Pond 1 at 24.51% and Pond 2 at 43.97%, suggesting potential issues in shrimp survival. The Feed Conversion Ratio (FCR) ranged from 1.73 to 1.93, indicating inefficiencies in feed utilization, especially in Pond 1. Health monitoring revealed challenges such as molting failure, reduced appetite, and softshell conditions in Pond 1, while Pond 2 experienced fewer health issues. Disease management involved feed adjustments and the use of minerals. Wastewater was managed through sedimentation at the wastewater treatment plant, contributing to sustainable practices. Overall, while growth trends were positive, improvements in survival rates, feed efficiency, and health management are necessary for optimizing shrimp production at IBL Prigi.
Species composition, diversity, and size variation of mushroom corals (Fungiidae) in Gili Noko, Bawean Island, Indonesia Mudzakky, Fathul Hilmy; Ar Royyan, Muhammad Abyan
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.v6i1.2240

Abstract

This study examines the community structure of mushroom corals in the waters of Gili Noko, Bawean Island, Indonesia, focusing on species composition, diversity, dominance, and size variation across three observation stations. Two species were identified: Fungia fungites and Herpolitha limax, with a total of 20 individuals recorded. Fungia fungites was the most dominant, particularly at Station 2, which had the highest abundance (n=8). The Shannon-Wiener diversity index ranged from 0.451 to 0.562, indicating very low species diversity in absolute terms. However, given the naturally limited species richness within mushroom corals, these values suggest a relatively balanced community structure. The dominance index ranged from 0.625 to 0.722, reflecting moderate species dominance, with Fungia fungites being more prevalent but not overwhelmingly so. Polyp size varied across stations, with Fungia fungites reaching the largest average diameter at Station 1 (9.8 cm) and Herpolitha limax at Station 2 (16.3 cm), suggesting that microhabitat conditions, coral density, and sandy-rubble substrate influence growth patterns. The presence of mushroom corals at all stations suggests generally favorable environmental and substrate conditions. These findings highlight the ecological value of Gili Noko’s reef habitat and emphasize the importance of conservation efforts to mitigate potential threats from human activity and climate change. Future research should prioritize temporal monitoring and assessments of anthropogenic pressures to support sustainable reef management in the area.
Environmental friendliness of traditional fishing gear in the northern coastal waters of East Java, Indonesia Rahmany, Cindy Ananda; Samudra, Muhammad Farhan Satya Bintang; Wijaya, Amelia Rachma; Ramadhan, Yusril Ilhami; Perdanawati, Rizqi Abdi
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.v6i1.2272

Abstract

The northern waters of East Java are classified as semi-enclosed marine areas, characterized by relatively mild wave activity and shallow depths. Seasonal monsoon winds significantly influence ocean currents in this region, creating favorable conditions for the exploitation of coastal and marine resources. Communities living in these coastal areas exhibit a high socio-economic dependency on marine ecosystems. This study aims to assess the types of fishing gear used by communities along the northern coast of East Java, focusing on gear design, construction materials, catch composition, and environmental sustainability. The findings reveal that fishermen in Surabaya City and Sidoarjo Regency primarily utilize traditional fishing gear such as nets, traps, rods, and region-specific tools locally known as serok, sonder, cager, nyatak, pancalan, and garit. An environmental friendliness assessment based on FAO (1995) criteria yielded high scores: gillnets (28.21), waring nets (31.25), garit (31.74), and traps/bubu (33.26). These results place all gear types within the "very environmentally friendly" category (score range: 26–36), indicating the ecological sustainability of traditional fishing practices in the region. This study highlights the importance of supporting traditional fishing gear to promote sustainable fisheries and preserve marine ecosystems in East Java.

Page 5 of 7 | Total Record : 67

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