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Journal of Marine and Coastal Science
Published by Universitas Airlangga
ISSN : 23016159     EISSN : 25280678     DOI : http://dx.doi.org/10.20473/jmcs.v9i2.20064
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology
The Journal of Marine and Coastal Science is a scientific journal that publishes articles related to marine science and coastal management, including seafood nutrition, marine microbiology, marine biotechnology, coastal management, and marine biodiversity research
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 121 Documents
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Analysis of the Influence of Wind, Rainfall, and Sea Surface Temperature on Handline Catch Yields at Bungus Ocean Fishing Port lestari, dewi joni lestari; Lisna; Heltria , Septy
Journal of Marine and Coastal Science Vol. 14 No. 3 (2025): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v14i3.72571

Abstract

West Sumatra is one of Indonesia's Fisheries Management Areas with significant tuna potential, particularly yellowfin tuna (Thunnus albacares) and bigeye tuna (Thunnus obesus). This study aims to examine the influence of wind speed, rainfall, and sea surface temperature (SST) on handline catch yields at Bungus Ocean Fishing Port, West Sumatra, during the 2019–2023 observation period. The methodology employed a survey approach using secondary data obtained from https://data.marine.copernicus.eu/ the Meteorological Station of the Meteorology, Climatology, and Geophysics Agency (BMKG), and catch data from Bungus Ocean Fishing Port logbooks.The results indicate that the highest wind speed variability occurred during the 2019 East Monsoon Season, ranging from 8.80–11.10 m/s (25%) with a northwest direction, while the lowest wind speed was recorded during the 2021 Transitional Season 0.50–2.10 m/s, northerly (4%). The highest rainfall (552 mm/hari) occurred during the 2022 Transitional Season 2, while the lowest (30 mm/hari) was observed in 2019 during Transitional Season 2. The highest SST (30.31°C) was recorded during Transitional Season 1, and the lowest (27.19°C) during Transitional Season 2. The peak catch (451,201 tons) occurred during the 2019 west monsoon, whereas the lowest yield (20,359 tons) was recorded in 2023 during Transitional Season 2. Multiple linear regression analysis revealed that wind speed, rainfall, and SST collectively explained 25.2% of the variation in tuna catches, though their influence was not statistically significant. Correlation analysis further demonstrated no strong interdependence among wind speed, rainfall, and SST variables, factors outside the investigated variables accounted for 74.8% of the variance.
Estimation of Phosphorus Storage in Seagrass in the Coastal Waters of Eastern and Northen Bintan Island Luthvi Nurwulandari; Apriadi, Tri; Zulfikar, Andi
Journal of Marine and Coastal Science Vol. 14 No. 3 (2025): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v14i3.72783

Abstract

The eastern and northern coastal waters of Bintan Island are seagrass conservation areas with high biodiversity and coverage. Seagrass is known to play an essential role in the carbon cycle and has the potential to store phosphorus, but limited information is available regarding its phosphorus reserves. This study aims to estimate phosphorus (P) storage in seagrass and analyze the relationship between seagrass ecological parameters and phosphorus content. A field survey and hierarchical sampling technique were conducted at six locations, with samples of seagrass, substrate, and water analyzed in laboratory. Results showed the highest seagrass density in Pengudang (816 shoots/m²) and the lowest in Berakit 2 (107 shoots/m²); the highest coverage in Teluk Bakau 1 (83.5%) and the lowest in Teluk Bakau 2 (43.1%); and the highest biomass in Pengudang (138.55 gr/m²) and the lowest in Berakit 2 (19.39 gr/m²). The highest phosphorus storage was recorded in Berakit 2 (0.321%) and the lowest in Teluk Bakau 2 (0.258%). A positive correlation was observed between coverage and phosphorus content, indicating that increased seagrass coverage potentially enhances phosphorus storage capacity. These findings offer new insights into the role of seagrass in the phosphorus cycle and its implications for sustainable coastal ecosystem management.
Estimation of Sources and Marine Debris Dynamics Movement along the Coast of Sukajaya Lempasing Village, Lampung Province Muhamad Gilang Arindra Putra; Kattia Setiyani Widiastuti; Yudo Pramono; Delilla Suhanda
Journal of Marine and Coastal Science Vol. 14 No. 3 (2025): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v14i3.75754

Abstract

The coastal zone is a transitional area characterized by complex dynamics influenced by the interaction between land and sea. One of the consequences of this interaction is the accumulation of solid pollutants in the form of waste, which has the potential to disrupt the surrounding ecosystem's balance. This study aims to estimate the origin and movement pathways of marine debris along the coast of Sukajaya Lempasing Village by analyzing surface current patterns. The methods applied include purposive sampling and both quantitative and qualitative descriptive analysis. Waste data collection followed the guidelines issued by the Ministry of Marine Affairs and Fisheries in 2024, while surface current simulations were conducted using MIKE 21 with the Flow Model Flexible Mesh module. Monitoring results indicated that plastic waste dominated at all stations, with the highest number recorded at Station 1 (671 items), which also had the greatest total waste weight, amounting to 38.5 kg. The average waste density in the study area was 4.82 pcs/m². Surface current speeds ranged from 0.004 to 0.008 m/s on March 28, 2024, and from 0.005 to 0.015 m/s on April 2, 2024. Based on modeling results and interviews with local residents, the primary source of the waste was river discharge, which was then transported by longshore currents and subsequently accumulated along the coast of Sukajaya Lempasing Village.
Analysis of Water Quality in Pangeranan Estuari, Bangkalan, Madura Using the Pollution Index and Storet Methods Arrayanul Jannah, Annisa; Mertiara Ratih Terry Laksani; Zainuri, Muhammad; Farid, Akhmad
Journal of Marine and Coastal Science Vol. 14 No. 3 (2025): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v14i3.76538

Abstract

The extensive use of estuaries makes them vulnerable to being used as dumping sites for waste from human activities. Continuous accumulation of rubbish in estuaries can cause water pollution and decrease water quality. Pangeranan Waters is one of the estuari waters in Bangkalan Regency, East Java which is widely used by the community. Therefore, the aim of this research is to determine the water quality of the Pangeran Bangkalan Madura River estuari using two different methods. This research was conducted in November 2024 by collecting in-situ and ex-situ data at low and high tide. The results of water quality measurements are then analyzed to determine its status using two methods, namely Pollution Index and Storet. From this analysis, the water quality status was Pollution Index obtained as follows: at low tide, it shows a moderate level of pollution, while at high tide and highest tide, the status shows heavy pollution. The results of analysis using the Storet method show that the average physical parameter skorat stations 1 to 5 is -9, which is in the lightly polluted category. Meanwhile, for chemical parameters, the average skorobtained was -60, which is classified as heavily polluted.
Genetic Diversity of Unhatched Sea Turtle Eggs in Buleleng, Bali Indonesia Hatchery Based on The Mitochondrial Control region Locus Immanuel Pratama; Ni Putu Dian Pertiwi; I Made Oka Riawan; Ni Luh Astria Yusmalinda; Andrianus Sembiring; Luh Putu Candra Apriliani; Ni Komang Rossa Sri Savitri; Srie Marhaeni Julyasih, Ketut; Jafron Syah, Moh; Rita Rachmawati
Journal of Marine and Coastal Science Vol. 14 No. 3 (2025): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v14i3.77095

Abstract

Sea turtles are protected animals that are threatened with extinction due to natural and anthropogenic factors such as coastal erosion and illegal trade. This study aims to analyze the genetic diversity of sea turtles in Buleleng using mitochondrial DNA from unhatched egg samples. Samples were collected from two nests at several breeding sites to determine genetic variation within a single conservation area. Molecular analysis was conducted on the control region locus with a sequence length of 869 bp. The results of the identification showed that the samples originated from three species: green sea turtles (Chelonia mydas), olive ridley sea turtles (Lepidochelys olivacea), and hawksbill sea turtles (Eretmochelys imbricata), with sequence similarities of 99.44%–99.77%. The phylogenetic tree formed four clades with bootstrap values of 79–100%, supporting the classification and kinship relationships between species. Low intraspecific genetic distance (0–0.2%) and interspecific genetic distance (16.4–21.4%) indicate high similarity within a species and significant differences between species. The results of this study can be used to strengthen effective genetics-based sea turtle conservation programs in the Buleleng region of North Bali.
Carbon Storage in Seagrass in The East and North Coastal Waters of Bintan Island Alsha, Syahbana Advani; Zulfikar, Andi; Retna Melani, Winny
Journal of Marine and Coastal Science Vol. 15 No. 1 (2026): FEBRUARY
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v15i1.75590

Abstract

Seagrass has the ability to store carbon by utilizing CO2 to be used as a photosynthesis component which has the potential as blue carbon. This research was aimed to determine density, and biomass in the East and North Coastal Waters of Bintan Island; determine the carbon storage contained in seagrass in the East and North Coastal Waters of Bintan Island; and determine the relationship between density, biomass, and carbon storage in seagrasses in the East and North Coastal Waters of Bintan Island. The research was conducted in Teluk Bakau, Malang Rapat, Berakit, and Pengudang from August 2024 to May 2025. The tools and materials used were 50 × 50 cm2, oven, muffle furnace, shieve net, underwater camera, plastic bag, seagrass samples, and substrate samples. The research procedures was used systematic random sampling method and the sampling design used in determining sampling points was a nested hierarchical design. The method of calculating the value of carbon storage in seagrasses used the Walkley and Black method. The data analysis was carried out by calculating the value of density, biomass; then calculating the value of carbon storage in seagrasses, and testing the relationship between density, biomass, and carbon storage in seagrasses. Density in the eastern region ranged from 284-577 shoot/m2 and in the northern region ranged from 107-816 shoot/m2. Biomass in the eastern region ranged from 39,31-82,99 gr/m2 and in the northern region ranged from 19,39-138,55 gr/m2. Carbon storage in the eastern region ranged from 27,46-31,03% and in the northern region ranged from 23,93-28,30%. The results of the correlation test show that density has a moderate relationship and is directly proportional to biomass with a correlation value of 0.51; density has a very weak relationship and is inversely proportional to carbon storage with a value of -0.09; and biomass has a weak relationship and is inversely proportional to carbon storage with a value of -0.24.
Estimation of Nitrogen (N) Storage in Seagrass in The East and North Coastal Waters of Bintan Island Ismi Dwi Yulianti; Zulfikar, Andi; Retna Melani, Winny
Journal of Marine and Coastal Science Vol. 15 No. 1 (2026): FEBRUARY
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v15i1.75591

Abstract

Seagrass has high primary productivity and is highly dependent on the availability of nitrogen as the main nutrient that supports growth, photosynthesis, and biomass, including in the waters of Bintan, Indonesia. This research was conducted to determine the density, biomass, and nitrogen content of seagrass, as well as the influence of density and biomass on nitrogen storage to support sustainable conservation management in the Eastern and Northern regions of Bintan Island. The research was conducted from August 2024 to May 2025 by taking seagrass samples using the nested hierarchical design method based on systematic random sampling. Nitrogen measurements are carried out using the Kjeldahl method which converts organic nitrogen into ammonium sulfate. Based on this research, the highest density (816.1 stands/m2) and biomass (138.56 g/m2) of seagrass were in Pengudang. The lowest density and biomass were in Berakit_2 with values of 106.8 stands/m2 and 19.03 g/m2, respectively. The highest nitrogen (0.758%) was found in 2 locations, namely Pengudang and Teluk Bakau_2, while the lowest nitrogen (0.359%) was in Berakit_1. Based on regression analysis, the density and biomass of seagrass had a significant effect on nitrogen storage with a regression value of 0.642.
Parameterizing the Wind-Wave Relation with or Without Fetch Parameter for Marine Science and Engineering Hsu, Shih-Ang (S.. A.)
Journal of Marine and Coastal Science Vol. 15 No. 1 (2026): FEBRUARY
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v15i1.78104

Abstract

In the realm of wind and wave interaction, traditionally, nearly all coastal and marine scientists and engineers have used the JONSWAP wave spectra which contains a variable called the “Fetch Parameter, X”. Since it is a challenge to determine this parameter objectively, most recently, this author has proposed an alternative method to link the wind speed at 10-m, U10 to the significant wave height, Hs. All units employed in this study are in SI. In this short communication, we first demonstrate in the Introduction that one needs caution to apply the wind-wave relation containing the fetch parameter. Then, based on the simultaneous measurements of the wind speed at 10-m, U10 (up to 72 m s -1) and the significant wave height, Hs (up to 27.6 m), during Hurricane Lili and Super-Typhoon Soudelor, the fetch parameter, X in km, used in the JONSWAP wave spectra is found to be X 0.5 = 5.5Ln (Hs) + 7.4 with a correlation coefficient, R = 0.90, so that U10 = 61Hs/(5.5Ln(Hs) + 7.4). Comparing this proposed formula for the wind-wave relation with the fetch parameterization against a relation without fetch parameter in the literature, i.e., U10 = 2.33Hs + 6, indicates that there is nearly no difference. However, further analysis based on simultaneous measurements of U10 and Hs without X during six hurricanes shows this formula is useful for air-sea interaction studies including the estimation of overwater friction velocity and wind stress determination to bypass the use of the drag coefficient which varies greatly.
Assessing Marine Reserve Effects on Limpet Diversity and Abundance in Rock Pools along The Eastern Cape Coast of South Africa Nakin, Motebang DV; Zvavahera, Munetsi
Journal of Marine and Coastal Science Vol. 15 No. 1 (2026): FEBRUARY
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v15i1.80366

Abstract

Overexploitation of coastal marine resources driven by rapid human population growth has increased pressure on wild marine species. Marine reserves have been established along the South African coast to mitigate these impacts; however, their effects on macroinvertebrate communities, particularly limpets inhabiting rock pools along the Eastern Cape coast, remain poorly understood. This study assessed the abundance and diversity of limpets in rock pools within marine reserves and adjacent non-reserve areas to evaluate the ecological benefits of protection and biodiversity distribution across intertidal microhabitats. Sampling was conducted over 12 months at four sites: two marine reserves (Dwesa-Cwebe and Hluleka Nature Reserves) and two non-reserves (Nqabara and Presley’s Bay). At each site, rock pools were sampled across three shore zones (mid-low, mid-high, and high shore). Data were analysed using PRIMER v7 and Statistica v14.1. Limpet diversity was estimated using Shannon’s Diversity Index, while abundance was measured as individuals per square metre. A total of 11 limpet species were recorded. Dwesa-Cwebe Nature Reserve exhibited the highest diversity (10 species), followed by Nqabara (9), Presley’s Bay (8), and Hluleka Nature Reserve (6). Limpet abundance and diversity were higher at Dwesa-Cwebe and Nqabara than at Hluleka and Presley’s Bay. These findings suggest that marine reserves may enhance protection of certain species but do not necessarily increase overall species diversity. Clear conservation objectives are therefore essential when establishing marine reserves.
Bio Secrets of Coral Reefs Underneath the Shore Ibrahim, Nur Aifiah Binti Ibrahim
Journal of Marine and Coastal Science Vol. 15 No. 1 (2026): FEBRUARY
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v15i1.83119

Abstract

Coral reefs are highly complex marine ecosystems that support biodiversity, fisheries, coastal protection, and livelihoods, yet they are increasingly threatened by climate change, pollution, and human activities. This study investigates coral reef health using a mixed-methods approach that integrates socio-ecological perspectives with biophysical and spatial analyses. Semi-structured interviews with marine scientists, local stakeholders, and conservation practitioners documented perceptions of coral bleaching, reef degradation, restoration strategies, and governance. These insights were complemented by field observations and secondary data assessing coral structure, sediment composition, carbon sequestration, and the presence of radionuclides and heavy metals. Reef structural complexity was evaluated using rugosity indices and underwater photogrammetry, supported by spatial mapping of reef morphology and environmental conditions. Results confirm that reef health depends on tightly coupled biological and socio-economic processes, with degradation driven by climate stress, pollution, and human pressure. Human-mediated restoration, community-based conservation, and coordinated governance emerged as critical factors for enhancing reef resilience. The study highlights the need for integrated, multi-scale monitoring and management strategies to support sustainable coral reef conservation under accelerating environmental change.

Page 12 of 13 | Total Record : 121

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