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The Effect of Sediment Supply from Land on Changes in Bathymetry in the Waters of the Rupat Strait, Dumai City, Riau Province Widuri, Falsabila; Mubarak, Mubarak; Rifardi, Rifardi
Jurnal Perikanan dan Kelautan Vol. 26 No. 3 (2021): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in February 2021 at the mouth of the Dumai River, Rupat Strait. The purpose of this study was to determine the effect of sediment supply from land on changes in bathymetry in the waters of the Rupat Strait based on the analysis of suspended sediment (SSC) and suspended solids (TSS) divided by the area of the study. The method used is a survey method. The results showed that as much as 26,94 tons/year of sediment entered the Rupat Strait and was distributed in the research area. Each part of the research area has a different bathymetric change value. This is presumably due to oceanographic factors in the waters of the Rupat Strait such as strong and weak river currents when entering the sea, the distance between the research area and the sediment supply source, human activities in each part of the study area, erosion along the river and abrasion at the river mouth. the presence of mangrove forests, dominant sediment types, sloping water topography, the cross-sectional width of the river as a sediment supplier, and suspended solids.
Analysis of Suitability and Supporting Capacity of Sasak Beach Tourism Pasaman Barat Andriani, Fikri; Rifaldi, Rifardi; Elizal, Elizal
Jurnal Perikanan dan Kelautan Vol. 27 No. 1 (2022): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in February 2021 at Sasak Beach, West Pasaman Regency, West Sumatra Province, aiming and the benefit of this study is to examine the suitability of beach tourism in Sasak Beach based on biophysical aspects, including the precept of the community to ecotourism activities in Sasak Beach, as well as analyze the supporting factors of its activities. The method used in the study is a method of surveying directly to the research site and measuring the necessary data qualitatively and quantitatively The goal is to get information about Sasak Beach and the perspective of tourists on the development of marine ecotourism at the research site. Sasak Beach has a specific feature with the planting program of a thousand pine trees. This beach has great potential and opportunities to be developed as a beach tourism area The highest conformity values are found in station I, and the lowest are in stations II and III. This value makes Sasak Beach can be used as a marine ecotourism.
Analysis of the Level of Abrasion on the Coast of Bukit Batu Sub-District, Bengkalis Regency, Riau Paramita, Elisa; Rifardi, Rifardi; Feliatra, Feliatra
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

The purpose of this study is to determine the rate of shoreline change and the level of abrasion in Bukit Batu District, Bengkalis Regency, Riau Province based on several physical variables in the coastal area. End Point Rate (EPR) is a method that can be used to calculate the rate of shoreline change by displaying transects according to their category (high abrasion, medium abrasion, low abrasion, stable, and accretion). From 1991-2021 there was an abrasion of ±139.71 m equivalent to ±4.65 m/year which mostly occurred in Sukajadi Village and Pangkalan Jambi Village, while accretion of ±27.51 m equivalent to ±1.58 m/year mostly occurred in Pakning Asal Village and Sejangat Village. Moderate abrasion is the predominant type. Sukajadi and Pangkalan Jambi are villages that have experienced high levels of abrasion. The area affected by abrasion has moderate and fast currents as well as coastal protection in the form of mangroves, most of which have been damaged and require repairs. Therefore, the main factors causing the abrasion are thought to be the lack of coastal protection and high-speed currents and waves flowing from the Malacca Strait.
Analysis of Shoreline Changes Period 1991 – 2001 Pasumpahan Island, Padang, West Sumatera Sanora, Fifi; Rifardi, Rifardi; Elizal, Elizal
Jurnal Perikanan dan Kelautan Vol. 28 No. 1 (2023): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Pasumpahan Island is an area that is affected by currents, waves and sedimentation processes because it is directly adjacent to the Indian Ocean and the mouth of the Pisang River, this causes changes in the coastline in the form of abrasion and accretion on the island. This study aims to determine the effect of currents, waves, and sedimentation processes on the rate of change of the shoreline for 10 years (1991-2001) on Pasumpahan Island. This research was conducted in March 2022 on Pasumpahan Island, Padang City, West Sumatra Province. The method used is a survey method to obtain primary data including current speed, heightwaves and sediments. The study method used is a quantitative method with a multi-temporal satellite imagery approachusing the Digital Shoreline Analysis System (DSAS) software with the End Point Rate (EPR) approach. The results of the analysis of current velocity values ​​ranged from 0.21-0.28 m/s, wave heights ranged from 0.24-0.55 m, the average diameter of the sediment ranged from 0.83-1 Φ. The results of image data processing show that there has been a change in the shoreline in the form of low category abrasion (0.4 m/year), stable (1.42 m/year), and accretion (3.07 m/year) on Pasumpahan Island.
Analysis of the Suitability of Pasumpahan Island Marine Tourism Based on the Tourism Suitability Index Pradana, Muhammad Aditya; Rifardi, Rifardi; Nedi, Syahril
Jurnal Perikanan dan Kelautan Vol. 28 No. 2 (2023): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Pasumpahan Island is one of the national and international tourist destinations located in Padang City, West Sumatra Province. This island is included in the Regional Marine Protected Area (KKLD) which has a very good coral reef ecosystem, so its management must be following applicable laws and regulations. This research was conducted in March 2022 on Pasumpahan Island, Bungus District, Padang City, West Sumatra Province. The method used is a field survey with data collection using a purposive sampling method. The measured index of water quality was processed using the Storet method. Pasumpahan Island's physical environment is relatively good with a wide expanse of white sand. The suitability of marine tourism in this island area based on the tourism suitability index (IKW) is 85.71% which is included in the S1 category (very suitable). The water quality of the Pasumpahan Island tourist area based on the water quality index (IKP) is in the very good category. Based on the IKW and IKP, the tourist area of ​​Pasumpahan Island is very feasible to be developed as a national marine tourism area.
Relationship between Coral Reefs and the Abundance of Reef Fish of the Pomacentridae Family in the Waters of Setan Island, West Sumatra Wardana, Rangga; Thamrin, Thamrin; Rifardi, Rifardi
Journal of Coastal and Ocean Sciences Vol. 6 No. 3 (2025): September
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.6.3.157-165

Abstract

Coral reefs play a role in maintaining marine biodiversity by providing habitat for various aquatic organisms, including reef fish from the Pomacentridae family. This study aims to analyze the relationship between coral reef cover and the Abundance of Pomacentridae reef fish in the waters of Setan Island, West Sumatra. The underwater photo transect (UPT) method is employed for coral cover analysis, while the underwater visual census (UVC) method is utilized for collecting fish abundance data. The results showed that the average percentage value of coral reef cover at a depth of 3 m was 20.38%, and at a depth of 6 m, it was 17.51%, indicating a poor category for the percentage value of coral reef cover. Data collection was conducted at four different stations. The highest coral cover was recorded at Station I (31.35%), while the lowest was at Station IV (0.33%). The Abundance of Pomacentridae reef fish varied between stations, with the highest Abundance observed in areas with higher coral cover. Based on simple linear regression analysis, the percentage of live coral cover accounts for 56.19% of the variation in the abundance value of Pomacentridae coral fish (R² = 0.5619), with a strong correlation (r = 0.7496). This indicates that declining coral reef conditions can harm fish populations. This finding underscores the significance of coral reef conservation efforts in maintaining marine biodiversity and ecosystem balance
Modeling of Water Surface Elevation Using MIKE 21 Based on Rupat Strait Bathymetric Data Ahmad, Alianisa; Mubarak, Mubarak; Tanjung, Afrizal; Rifardi, Rifardi; Ilahi, Ilham
Jurnal Natur Indonesia Vol. 23 No. 2 (2025): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.23.2.79-84

Abstract

The Rupat Strait, a strategically crucial marine channel separating Sumatra Island from Rupat Island, exhibits complex hydrodynamic characteristics influenced by tidal propagation from the adjacent Malacca Strait. As a vital shipping corridor, the strait's navigational safety is fundamentally governed by its bathymetric profile and tidal regime. This study implements an integrated methodological framework combining in situ bathymetric surveys with MIKE 21 hydrodynamic modeling to assess morphological dynamics quantitatively. Systematic validation of model outputs against field measurements revealed significant spatial variations in seafloor topography, including pronounced shallowing (>6.6 m) and substantial deepening (≤17 m) at distinct locations. Concurrent analysis of tidal data demonstrated extreme water level fluctuations, ranging from -2.36 m during the lowest astronomical tides to +6.28 m during peak tidal surges. These geomorphological alterations appear correlated with anthropogenic pressures, particularly intensive shipping traffic and coastal zone modifications, suggesting a coupled natural-anthropogenic forcing mechanism governing the strait's evolving morphodynamics. The findings highlight the critical need for ongoing monitoring to ensure maritime safety and sustainable coastal management in this rapidly changing marine environment
Analisis Spasio-Temporal Perubahan Garis Pantai di Wilayah Timur Kepulauan Bengkalis Tahun 2004-2024 Khaira, Annisa Ulfa; Rifardi; Dessy Yoswaty; Zulkifli; Ilham Ilahi
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 7 No 2 (2025): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v7i2.130

Abstract

Perubahan garis pantai merupakan fenomena dinamis yang didorong oleh interaksi proses alami dan antropogenik, termasuk transportasi sedimen, arus laut, aktivitas gelombang, dan intervensi manusia. Penelitian ini bertujuan untuk menganalisis perubahan garis pantai di Desa Pambang Pesisir, Kabupaten Bengkalis, selama periode 20 tahun (2004–2024) menggunakan citra satelit Landsat 8 OLI/TIRS C1 Level 2 tahun 2004, 2014, dan 2024. Metodologi yang digunakan meliputi analisis perubahan garis pantai melalui teknik penginderaan jauh dan pengukuran parameter fisika air laut seperti kecepatan arus dan tinggi gelombang. Hasil penelitian menunjukkan adanya tren penambahan garis pantai (akresi) di tiga stasiun pengamatan. Stasiun I, yang terletak di kawasan hutan mangrove, mengalami kemajuan garis pantai dengan laju 7,81 meter per tahun. Stasiun II, yang terletak di zona galangan kapal mengalami akresi sebesar 6,1 meter per tahun, sedangkan Stasiun III sebagai kawasan pariwisata, menunjukkan penambahan garis pantai sebesar 6,90 meter per tahun. Analisis pasang surut menunjukkan pola pasang surut campuran dengan dominasi semi-diurnal. Kecepatan arus bervariasi di berbagai stasiun, yaitu 0,29 m/s di Stasiun I, 0,33 m/s di Stasiun II, dan 0,36 m/s di Stasiun III, sedangkan tinggi gelombang masing-masing diukur sebesar 0,3 meter, 0,08 meter, dan 0,7 meter. Studi ini menyimpulkan bahwa perubahan garis pantai terutama dipengaruhi oleh kecepatan arus, energi gelombang, dan aktivitas antropogenik, terutama pembangunan struktur perlindungan pantai seperti tanggul. Temuan ini memberikan wawasan penting untuk pengelolaan dan perencanaan pembangunan pesisir yang berkelanjutan, dengan menekankan pentingnya mengintegrasikan dinamika alam dan dampak manusia ke dalam tata kelola wilayah pesisir.
Analisis Spasio-Temporal Perubahan Garis Pantai di Wilayah Timur Kepulauan Bengkalis Tahun 2004-2024 Khaira, Annisa Ulfa; Rifardi; Dessy Yoswaty; Zulkifli; Ilham Ilahi
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 7 No 2 (2025): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v7i2.130

Abstract

Perubahan garis pantai merupakan fenomena dinamis yang didorong oleh interaksi proses alami dan antropogenik, termasuk transportasi sedimen, arus laut, aktivitas gelombang, dan intervensi manusia. Penelitian ini bertujuan untuk menganalisis perubahan garis pantai di Desa Pambang Pesisir, Kabupaten Bengkalis, selama periode 20 tahun (2004–2024) menggunakan citra satelit Landsat 8 OLI/TIRS C1 Level 2 tahun 2004, 2014, dan 2024. Metodologi yang digunakan meliputi analisis perubahan garis pantai melalui teknik penginderaan jauh dan pengukuran parameter fisika air laut seperti kecepatan arus dan tinggi gelombang. Hasil penelitian menunjukkan adanya tren penambahan garis pantai (akresi) di tiga stasiun pengamatan. Stasiun I, yang terletak di kawasan hutan mangrove, mengalami kemajuan garis pantai dengan laju 7,81 meter per tahun. Stasiun II, yang terletak di zona galangan kapal mengalami akresi sebesar 6,1 meter per tahun, sedangkan Stasiun III sebagai kawasan pariwisata, menunjukkan penambahan garis pantai sebesar 6,90 meter per tahun. Analisis pasang surut menunjukkan pola pasang surut campuran dengan dominasi semi-diurnal. Kecepatan arus bervariasi di berbagai stasiun, yaitu 0,29 m/s di Stasiun I, 0,33 m/s di Stasiun II, dan 0,36 m/s di Stasiun III, sedangkan tinggi gelombang masing-masing diukur sebesar 0,3 meter, 0,08 meter, dan 0,7 meter. Studi ini menyimpulkan bahwa perubahan garis pantai terutama dipengaruhi oleh kecepatan arus, energi gelombang, dan aktivitas antropogenik, terutama pembangunan struktur perlindungan pantai seperti tanggul. Temuan ini memberikan wawasan penting untuk pengelolaan dan perencanaan pembangunan pesisir yang berkelanjutan, dengan menekankan pentingnya mengintegrasikan dinamika alam dan dampak manusia ke dalam tata kelola wilayah pesisir.
Co-Authors ', Mubarak ', Rosshalia ', Zulkifli Achmad Hidir Aditya Dharma Putra Afrizal Tanjung Afrizal Tanjung Afrizal Tanjung Afrizam ' Agusti, Dinda Roanna Ahmad Nurhuda Ahmad, Alianisa Alan Nuari Sipahutar Ambosa Hidayat Aminuyati Andre Rangga Andri Hendrizal Andrian, Fikri Andriani, Fikri Anggie Agustian Anna Lilian Annisa Al-Qhoshashi Aras Mulyadi Arif Hidayatullah Arif Teguh Satria Arinalhaq, Aminah Aristi, Fiona Arnes, Arnes Aslim Rasyad Asrori ' Athhary, Dhiva Danaya Basiluddin, Fadhlan Bima Wahyu Nugroho Bintal Amin Chairunisa Rachmani, Chairunisa Dedek Susanto Dendy Ariandi Dessy Yoswaty Dimas Sochi Satya Mendrofa Dinda Trie K Hayati Dinda Trie K Hayati Edwar Rufli Edy J Girsang Efriyeldi, Efriyeldi Elisa Paramita Elizal Elizal Elizal, Elizal Eryandi sitanggang Etty Riani Fairuzia, Putri Marwah Fajri, Ferli Falsabila Widuri Fatchur Rochman Fathurrahman, Febri Fauzi, Manyuk Feliatra Fertikasari, Indah Fifi Sanora Firmansyah Firmansyah Gita Purnama Sari Gita Purnama Sari, Gita Purnama Hafiza Tartila Isty Hamidah Dasno Vera Harahap, Anugerah Ramadhan Hayen, Nabilla Syima Putri Nur Hendra Yosep Siburian Heru Purnomo Hutapea, Yeru Daniel Octryan Ilham Ilahi Imron Imron Indah Fertikasari Irvina Nurachmi Jamhari Jamhari Jannata Rahmad Putra Jasman ' Joko Samiaji Julyana Julyana Kevin Anandika Dwi Putra Khaira, Annisa Ulfa Lydia Anna Oliza M Lubis M. Iqbal A Maatitawaer, Natasya Debora C Marganda Simamora Maulana, Fariz Melas, Febi Betania Monalisa Hasibuan Mubarak ' Mubarak Mubarak Mubarak Mubarak Mubarak Mubarak Mubarak Mubarak Mubarok, Ihsan Dwi Muhammad Aditya Pradana Muhammad Fadhli Muhammad Hidayatuddin Muhammad Rizki Fadly Musrifin Galib Musrifin Ghalib Musrifin, Musrifin Nabilla Syima Putri Nur Hayen Nanci Aulia Safitri Naomi Simanjuntak Paramita, Elisa Pohan, Rizal Suardiman Pradana, Muhammad Aditya Pranata, Eryc Prastya Bayu Afrian Putra, Kevin Anandika Dwi Rahmi Relva Rambe, Pahala Roy Ramot S Hutasoit, Ramot S Rasoel Hamidy Reza Ambar Wati Rica Purnama Sari Rina D'rita Sibagariang Rina Susanti Rinu Maido Rio Syahputra Robileo Agus Romauli, Junita Romel Kefriansa Putra Romi Fadli Syahputra Sampe Harahap Sanora, Fifi Siburian, Hendra Yosep Sidabalok, Westy Yulia Sihombing, Tumpal Simanjuntak, Naomi Sipahutar, Alan Nuari Siti Ramlah Hasibuan Sitorus, Gideon Dody Tama Situmorang, Nesi Silvia Sofyan Husein Siregar Sri Aslinda, Sri Sri Fitria Retnawaty Sri Wulandari Suardi Tarumun Suci Monika Putri Sutikno, Sigit suwondo suwondo Syafruddin Nasution Syahminan Syahminan Syahril Nedi Syaiful Anwar Syaputra, Eldy Syofyan Siregar Thamrin Thamrin Thamrin Thamrin Tri Radiko Felik Usman Muhammad Tang Visius Uracha Sisochi Wau Wahyu Novra Wanda Wardana, Rangga Wati, Reza Ambar Widuri, Falsabila Windarti Windarti Yeeri Badrun Yenica Roza Yogie Novri Yusda Yoskar Kadarisman Yudho Harjoyudanto Yusmarini Yusmarini Yusni Ikhwan Siregar Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli