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All Journal Juvenil: Jurnal Ilmiah Kelautan dan Perikanan Maritime Park: Journal Of Maritime Technology and Socienty
Lailiyah, Inayatul
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Analisis Hubungan Curah Hujan dan Kecepatan Angin terhadap Hasil Tangkapan Ikan di PPN Sibolga Sumatra Utara Lailiyah, Inayatul; Cahya, Ilham; Kurniawan, Ferdy
Juvenil Vol 6, No 2: Mei (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i2.30211

Abstract

ABSTRAKPelabuhan Perikanan Nasional (PPN) Sibolga merupakan salah satu pusat kegiatan perikanan tangkap terbesar di pesisir barat Sumatra Utara. Tujuan penelitian ini dilakukan untuk mengetahui hubungan hasil produksi penangkapan ikan terhadap curah hujan dan kecepatan angin di PPN Sibolga pada tahun 2023. Hasil penelitian ini diharapkan bisa menjadi pemahaman dalam meningkatkan efisiensi penangkapan dan pengelolaan perikanan berbasis ilmiah. Metode yang digunakan pada penelitian ini yaitu regresi linier dan korelasi pearson. Hasil produksi ikan pada tahun 2023 sebanyak 30,735 Ton. Hubungan hasil tangkapan ikan dan curah hujan kuat dimana nilai kolerasi diatas 0,6 sedangkan hubungan dengan kecepatan angin memiliki hubungan yang sangat rendah dengan hasil tangkapan ikan. Nilai r sebesar 0,425 yang artinya variabel curah hujan dan angin mempengaruhi 42,5% terhadap produksi penangkapan ikan dan sisanya dipengaruhi oleh faktor lain. Curah hujan saja yang berpengaruh secara signifikan terhadap hasil penangkapan ikan yang dibuktikan dengan nilai sig. dibawah 0,05.Kata kunci : Curah Hujan, Kecepatan Angin, Penangkapan Ikan, Regresi, KorelasiABSTRACTThe National Fishery Port Sibolga is one of the largest centers for capture fisheries activities on the western coast of North Sumatra. The purpose of this research is to determine the relationship between fish catch production and rainfall and wind speed at PPN Sibolga in 2023. The results of this study are expected to provide insights into improving the efficiency of fishing and scientific-based fisheries management. The methods used in this research are linear regression and Pearson correlation. The fish production in 2023 was 30,735 tons. The relationship between fish catch and rainfall is strong, with a correlation value above 0.6, while the relationship with wind speed has a very low correlation with fish catch. The r value of 0.425 means that the rainfall and wind variables influence 42.5% of the fish catch production, and the remaining is influenced by other factors. Only rainfall has a significant effect on fish catch results, as evidenced by a sig. value below 0.05.Keywords: Rainfall, Wind Speed, Fish Catch, Regression, Correlation
Jetty Extension Study Due to Addition of Power Capacity on Thermal Water Dispersion at PLTGU Grati Pasuruan Cahya, Ilham; Suntoyo, Suntoyo; Lailiyah, Inayatul; Nurdin, Jihannuma Adibiah
Maritime Park: Journal of Maritime Technology and Society Volume 2, Issue 2, 2023
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.v2i2.27892

Abstract

PLTGU (Gas and Steam Power Plant) is a combination of gas power plant and steam power plant. PLTGU requires a cooling water systems during its operational life. The required amount of cooling water will increased along to increased power capacity of power plant. This project contains jetty extension study due to the addition of power capacity on thermal water dispersion at PLTGU Grati, Pasuruan. The results show using Delft3D hydrodynamic model, The alternative model showing quite good performance decreased temperature of cooling water on average 0.7975 oC at inlet canal. But it only need 2.5 oC increase of seawater temperature to decrease 0.33% efficiency, so it might change nothing to thermal power plant efficiency compared to the model result. Considering to the increasing risk of sedimentation rate, this alternative might be poor layout but further research needed. Still the best choice is on existing jetty design.
Analysis of the Relationship between Chlorophyll-a Concentration Variability and Sea Surface Temperature on ENSO and IOD Phenomena in the Waters of Sumenep, Madura Island Alfaridzi, Zacky Maulana; Lailiyah, Inayatul; Aries Dwi Siswanto; Cahya, Ilham; Wardhani, Anita Kusuma
Maritime Park: Journal of Maritime Technology and Society Volume 5, Issue 1, 2026
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.48201

Abstract

Indonesia’s marine environment is highly sensitive to global climate variability, particularly El Niño–Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD). This study analyzes the spatial and temporal variability of sea surface temperature (SST) and chlorophyll-a concentration and their relationship with ENSO and IOD in Sumenep waters, Madura Island. SST and chlorophyll-a data were derived from Aqua MODIS satellite observations for the period 2014–2024, while ENSO and IOD were represented by the Oceanic Niño Index (ONI) and Dipole Mode Index (DMI). Data were analyzed using temporal trend analysis, spatial mapping, and Pearson correlation. The results show that SST fluctuated between 28.01 and 30.75 °C, with higher temperatures during El Niño phases and lower temperatures during La Niña phases. Chlorophyll-a exhibited relatively stable minimum values (0.178–0.217 mg/m³), while maximum values varied between 0.499 and 0.782 mg/m³, peaking in 2020. Pearson correlation analysis indicates a strong relationship between ENSO and SST (r = 0.791) and a very strong relationship with chlorophyll-a (r = 0.898). In contrast, IOD shows very weak correlations with SST (r = 0.074) and chlorophyll-a (r = 0.211). These findings confirm that ENSO is the dominant driver of SST and chlorophyll-a variability in Sumenep waters, with important implications for regional marine productivity.
Mapping the Distribution of Sediment Types Using Core Sampling Methods on the Coast of Prancak Village, Bangkalan Regency, Indonesia Fatihin, Mohammad Khoirul; Cahya, Ilham; Wicaksono, Ashari; Lailiyah, Inayatul
Maritime Park: Journal of Maritime Technology and Society Volume 5, Issue 1, 2026
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.48204

Abstract

Prancak Village is a coastal village located in Sepulu Subdistrict, Bangkalan Regency, which has an important ecosystem in the form of coral reefs and seagrass beds. This study aims to map the distribution of bottom sediments and determine the influence of hydrodynamic conditions on sediment distribution. Data collection was conducted at 20 stations using a core sampler, and sediment samples were analyzed for granulometry in the laboratory. Supporting parameters such as currents, waves, tides, and bathymetry were also recorded. The results of this study show that bottom sediments in the coastal area of Prancak Village are dominated by sand with a sand content of 94.914-99.598% and silt and clay content ranging from 0.323-5.086%. The results of sediment classification showed that fine sand dominated at some points, while coarse mud dominated at other locations. The dominance of sandy sediments in the coastal area of Prancak Village creates substrate conditions that support seagrass growth and the sustainability of the coral reef ecosystem. This study provides information on the distribution of bottom sediments as a basis for coastal management and development planning, as well as erosion and sedimentation mitigation in the coastal area of Prancak Village, Bangkalan Regency.
Analysis Of Geomorphology Using the Coastal Vulnerability Index Method on the Coast of Prancak Village, Bangkalan Regency, Indonesia Zakariyya, Muhammad Zaiki; Ilham Cahya; Wicaksono, Ashari; Lailiyah, Inayatul
Maritime Park: Journal of Maritime Technology and Society Volume 5, Issue 1, 2026
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.48209

Abstract

Coastal areas are highly dynamic environments facing increasing threats from both natural processes and human activities, such as coastal erosion, sea level rise, and land use changes. Prancak Village is one such coastal area vulnerable to geomorphological changes. This study aims to assess coastal vulnerability through geomorphological analysis using the Coastal Vulnerability Index (CVI) method. Data were collected from primary and secondary sources, including satellite imagery, field surveys, digital elevation models (DEMs), and data from relevant agencies. The analyzed parameters comprised coastal morphology, beach slope, shoreline change, wave height, and tidal range. The CVI calculation yielded a value of 6.93, which falls within the 5.8–10.06 range classified as “low vulnerability” (20–40% vulnerability level), indicating that the study site has relatively low susceptibility to the physical factors assessed Although the overall index is low, local physical dynamics still pose risks in certain areas, confirming that geomorphology and coastal ecosystem conditions are more decisive in determining vulnerability than oceanographic parameters such as wave height.
Implementation of the Least Square Method in Tidal Harmonic Analysis Using Python Programming rahmadania, Suci Fitra; Cahya, Ilham; Wicaksono, Ashari; Lailiyah, Inayatul
Maritime Park: Journal of Maritime Technology and Society Volume 5, Issue 1, 2026
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.48211

Abstract

This study aims to analyze the tidal characteristics in the southern coastal area of ​​Madura using the least squares-based harmonic analysis method with Python programming. This method is used to obtain tidal harmonic constants and determine the tidal type in the study area. The analysis results show that the M₂ component is the dominant component with an amplitude of 0.498 m, followed by the K₁, O₁, and S₂. The Formzahl value of 1.056 indicates that the tidal type in the southern coastal area of ​​Madura is a mixed tide tending to be semidiurnal. Model validation using the Root Mean Square Error (RMSE) produced a value of 0.201 m, indicating that the modeling results have a fairly good level of accuracy. The results of this study are expected to be a reference in the planning and management of coastal areas in Madura waters.
Co-Authors Alfaridzi, Zacky Maulana Aries Dwi Siswanto Ashari Wicaksono Cahya, Ilham Fatihin, Mohammad Khoirul ILHAM CAHYA Ilham Cahya Kurniawan, Ferdy Nurdin, Jihannuma Adibiah rahmadania, Suci Fitra Wardhani, Anita Kusuma Zakariyya, Muhammad Zaiki