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All Journal Jurnal Pasir Laut Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan JURNAL ENGGANO Asian Journal of Aquatic Sciences Jurnal Pengabdian Masyarakat Multidisiplin Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Krinok:Jurnal Linguistik Budaya Jurnal Riset Kelautan Tropis (J-Tropimar) ARZUSIN: Jurnal Manajemen dan Pendidikan Dasar Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service Jurnal Perikanan dan Kelautan Jurnal Natur Indonesia
Ilham Ilahi
Universitas Riau
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Analysis of Coastal Abrasion Rate and Sediment Fractions at Tiram Beach, West Sumatra Fauzan Azmi; Rifardi Rifardi; Ilham Ilahi
Jurnal Perikanan dan Kelautan Vol. 31 No. 1 (2026): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.1.135-142

Abstract

Tiram Beach, located in Padang Pariaman Regency, West Sumatra Province, is one of the coastal areas under environmental pressure from coastal abrasion. Abrasion leads to shoreline retreat and negative impacts on local socio-economic activities. This study aims to analyze the rate of coastal abrasion and sediment fractions at Tiram Beach over 20 years (2003–2023), and to identify the dominant sediment characteristics in the area. The research methods included analysis of Landsat satellite imagery (2003, 2013, and 2023). Results show that Tiram Beach has undergone consistent shoreline retreat, with abrasion rates ranging from 2.2 to 3.1 meters per year. The sediment is predominantly composed of coarse sand and gravel, classified as poorly sorted, with skewness values indicating a dominance of coarse particles in certain zones. Contributing factors to abrasion include high-energy waves from the Indian Ocean, strong coastal currents, and human activities such as tourism and coastal infrastructure development. In conclusion, coastal abrasion at Tiram Beach is significant and poses a threat to the sustainability of the coastal zone if left unmanaged. Mitigation measures such as the construction of coastal protection structures, rehabilitation of coastal vegetation, and integrated coastal spatial planning are recommended to reduce future impacts.
ANALYSIS OF SEDIMENTATION RATES AT THE MOUTH OF THE MESJID RIVER IN DUMAI CITY: IMPLICATIONS FOR SILTATION AND SEDIMENT TRANSPORT Ilham Ilahi; Mubarak Mubarak; Farhat Ofirma; Gita Purnama Sari
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.406-409

Abstract

The Mesjid River Estuary in Dumai City is an area prone to sediment accumulation due to the influence of river hydrology dynamics and interaction with oceanographic processes in coastal waters. The sedimentation phenomenon that occurs has a direct implication on the rate of estuary siltation and sediment transport patterns that affect the balance of the aquatic ecosystem. This study aims to analyze the sedimentation rate and sediment characteristics at the Mesjid River Estuary and examine the impact of sedimentation on siltation and sediment transport patterns. This study was conducted in December 2024 at the Mesjid River Estuary, Dumai City, with the aim of analyzing the sedimentation rate and its implications for siltation and sediment transport. Sedimentation in estuarine areas is an important phenomenon that affects changes in channel morphology, navigation capacity, and coastal ecosystem balance. Data collection was conducted at six research stations from upstream to downstream by recording water quality parameters, sediment characteristics, sedimentation rates, total suspended solids (TSS), and sediment transport. The results showed that the sedimentation rate ranged from 7.0 to 10.3 cm/year, with an average of 8.77 cm/year, which is relatively high compared to other estuaries in Southeast Asia. The average TSS value of 135 mg/l indicates a significant supply of sediment from land erosion and anthropogenic activities, while the sediment transport load reached 338.2 tons/year, confirming the role of the estuary as a center of material accumulation. These conditions accelerate siltation, limit the efficiency of maritime transportation, and alter coastal morphological dynamics, necessitating active management strategies and sustainable mitigation to maintain ecosystem functions and support the sustainability of local economic activities
Analysis of Coastal Abrasion Rate and Sediment Fractions at Tiram Beach, West Sumatra Fauzan Azmi; Rifardi Rifardi; Ilham Ilahi
Jurnal Perikanan dan Kelautan Vol. 31 No. 1 (2026): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.1.135-142

Abstract

Tiram Beach, located in Padang Pariaman Regency, West Sumatra Province, is one of the coastal areas under environmental pressure from coastal abrasion. Abrasion leads to shoreline retreat and negative impacts on local socio-economic activities. This study aims to analyze the rate of coastal abrasion and sediment fractions at Tiram Beach over 20 years (2003–2023), and to identify the dominant sediment characteristics in the area. The research methods included analysis of Landsat satellite imagery (2003, 2013, and 2023). Results show that Tiram Beach has undergone consistent shoreline retreat, with abrasion rates ranging from 2.2 to 3.1 meters per year. The sediment is predominantly composed of coarse sand and gravel, classified as poorly sorted, with skewness values indicating a dominance of coarse particles in certain zones. Contributing factors to abrasion include high-energy waves from the Indian Ocean, strong coastal currents, and human activities such as tourism and coastal infrastructure development. In conclusion, coastal abrasion at Tiram Beach is significant and poses a threat to the sustainability of the coastal zone if left unmanaged. Mitigation measures such as the construction of coastal protection structures, rehabilitation of coastal vegetation, and integrated coastal spatial planning are recommended to reduce future impacts.
MAPPING OF CORAL REEF DISTRIBUTION USING THE LYZENGA ALGORITHM METHOD WITH SENTINEL-2 IMAGERY IN PASUMPAHAN ISLAND Jenny Lisiana; Mubarak Mubarak; Thamrin Thamrin; Zulkifli Zulkifli; Ilham Ilahi
Asian Journal of Aquatic Sciences Vol. 9 No. 2 (2026): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.2.157-163

Abstract

The coral reef ecosystem on Pasumpahan Island holds significant ecological and economic value but is vulnerable to environmental pressures. This study aims to map shallow-water benthic habitats and to assess the accuracy of Sentinel-2 satellite image classification using the Lyzenga water-column correction method. The research involved radiometric correction, application of the water-column correction algorithm, and supervised classification using the Maximum Likelihood algorithm. Field validation was conducted using 30 ground-check points to assess accuracy using a confusion matrix. The analysis results indicate that the shallow waters of Pasumpahan Island are dominated by the substrate class, covering 15.75 Ha, while the coral reef class covers 7.78 Ha. The accuracy assessment yielded an Overall Accuracy of 83.3% and a Kappa Coefficient of 0.67, indicating substantial agreement and confirming the method's validity for spatial mapping. This study concludes that the Lyzenga method is effective in mapping benthic habitats with adequate accuracy, and the resulting map can serve as baseline data for area managers for conservation zoning.
Co-Authors Abidah, Rahma Abiyyu, Daffa Reyhan Adinda, Lasmi Junia Afrilesa, Rini Afrizal Tanjung Agusti, Dinda Roanna Ahmad, Alianisa Akhmad Ferdinan Hairo Ananda, Tiara Anggraini Anggraini Anggraini, Sarinah Septeria Annisa Ulfa Khaira Aras Mulyadi Athiyyah Salwaa Andini Atika Nabila Basiluddin, Fadhlan Benny Heltonika Bintal Amin Dedi Efendi Delilla Suhanda Desi Purnamasari Taher Dessy Yoswaty Efriyeldi, Efriyeldi Elizal, Elizal Fadhilah Khairani, Fadhilah Fadhillah, Fanny Fajar, Rahmat Farhat Ofirma Fathurrahman, Febri Fauzan Azmi Fauzan, Ikhwan Faza, Amirah Febriansyah, M. Gita Purnama Sari Gita Purnama Sari, Gita Purnama Hasandi, Vebby Sandrina Ikhwan Fauzan Intan Yunika Putri Irvina Nurachmi Irwan Effendi Irwan Irwan Janzen, Amelia Inshiroh Jenny Lisiana Kartika, Eva Dwi Khaira, Annisa Ulfa Khairimatulhusna Khairimatulhusna Khairul Mukmin Lubis Laoli, Wilman Joi Saputra Lastri, Widya Monica Legiana, Salsa Bila Pitu Legiana, Salsa Pitu Linpas, Nurafni M. Irsyad Nur Maatitawaer, Natasya Debora C Maellynia Mustofa Mas’ud, M Abdul Mubarak Mubarak Mubarak Mubarak Muhammad, Atha Nabila Afifah Azuga Nabila Afifah Azuga Nofita, Ulti Novia M. Afianti Novia M. Afrianti Nur Atikah Nursyirwani, Nursyirwani Olivia, Artia Putri Prameswari, Cinta Riyanda Pratama, Willi Putri, Indah Chiara Rani, Aida Rama Rasoel Hamidy Rifardi Saputra, Yandy Anugraha Serviska, Friska Sirait, Afriyanti Elsyah Br Sofyan H Siregar Syahrial Syahrial Thamrin Thamrin Triasya, Magdalena Verid Aria Susammesin Yeni Sustriani Yusni Ikhwan Siregar Yusni Ikhwan Siregar Zaza A Zahra Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli