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All Journal Indonesian Journal of Geography Bumi Lestari JOURNAL OF COASTAL DEVELOPMENT ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Journal of Education, Humaniora and Social Sciences (JEHSS) Asian Journal of Aquatic Sciences Unri Conference Series: Community Engagement Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Jurnal Riset Kelautan Tropis (J-Tropimar) EcoNews Jurnal Manusia dan Lingkungan Jurnal Perikanan dan Kelautan Jurnal Natur Indonesia
Rifardi
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Physics Public Health Social Sciences

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Analysis of Total Suspended Solid Distribution and Its Effect to the Fertility of Marine Waters Around Fish Auction Place (TPI) Dumai Situmorang, Nesi Silvia; Rifardi, Rifardi; Siregar, Yusni Ikhwan
Journal of Coastal and Ocean Sciences Vol. 2 No. 1 (2021): January
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.2.1.36-42

Abstract

This study aims to determine the distribution of total suspended solid concentration (TSS) in the waters around TPI Dumai. Water samples were taken from 12 sampling point from the waters during high and low tides to determine TSS concentration. The concentration of total suspended solids ranges from 60-130 mg/l. The concentration is relatively higher (>80 mg/l) in the area that is close to residential areas and TPI. The highest concentration of total suspended solids was 117 mg/l found in waters with a depth of 1-3 m, while the lowest was 81 mg/l found at the sampling point of 5,9. The distribution of chlorophyll-a concentration is relatively higher around the coast which is around 0.476-0.178 mg/l, and it's lower off the shore which is around 0.080-0.090 mg/l. The chlorophyll-a concentration is lower in waters far from the coast because there is no direct nutrient supply from the land. The regression analysis indicate that Tss and chlorophyll-a has a weak relationship between the two variables relatively weak but they are still affecting each other
Tidal and Bathymetry Characteristics in Dumai River Estuary in Dumai City, Riau Province Maulana, Fariz; Mubarak, Mubarak; Rifardi, Rifardi
Journal of Coastal and Ocean Sciences Vol. 5 No. 3 (2024): 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.5.3.151-158

Abstract

This research was carried out in July 2023 in Muara Sungai Dumai, Dumai City, Riau Province. This study aims to conduct depth mapping analysis using echosounders based on reference corrections to tides. Tidal analysis is performed to determine reference values such as MSL (Mean Sea level) and tidal characteristics. The methods used are survey methods and quantitative analysis. The results showed that the waters of the Dumai River Estuary were mixed tide prevailing semi-diurnal with a formzahl value of 0.29. There is tidal asymmetry with the time to the high tide faster than the time to low tide. The depth ranges from 0.28 to 7.34 m, increasing to 40 m in the Rapat Strait. The weak current and the difference in HHWL values of 3.55 m and MSL 0.14 m affect water level rise due to bathymetric changes at high tide.
Analysis of Shoreline Changes in the Coastal Area Between Batang Anai Estuary and Batang Mangur Estuary West Sumatra Province Fairuzia, Putri Marwah; Rifardi, Rifardi; Siregar, Sofyan Husein
Journal of Coastal and Ocean Sciences Vol. 4 No. 3 (2023): 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/

Abstract

This study aimed to determine the rate of change of the coastline and the effect of sedimentation processes, currents, and waves on the coastline in the coastal area between Batang Anai Estuary and Batang Mangur Estuary, West Sumatra Province. End Point Rate (EPR) is a method that can be used to calculate the rate of change of coastline by displaying transects according to their categories (high abrasion, medium abrasion, low abrasion, stable, and accretion). In 1993–2023, there was a change in the coastline in the form of abrasion, which reached ±150 m with a change rate of ±1.63 m/year. The abrasion at the research station is classified into high, medium, and low categories. Accretion also occurs in the area around the research station, and some areas do not experience significant changes or remain in a stable condition. Currents in the coastal area between Batang Anai Estuary and Batang Mangur Estuary, Padang Pariaman Regency, are included in the slow-moderate category with an average value of 0.19-0.28 m/s. Wave height is included in the low–low category with an average value of 0.1–0.58 m. Although currents and wave heights are included in the low category, some areas lacking coastal vegetation and no breakwaters can experience abrasion and accretion.
Analysis of Physical Hydro-Oceanographic Factors for Abrasion at Pasir Jambak Beach, Padang City, West Sumatra Province Athhary, Dhiva Danaya; Rifardi, Rifardi; Elizal, Elizal
Journal of Coastal and Ocean Sciences Vol. 4 No. 3 (2023): 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/

Abstract

Abrasion is a common problem in coastal areas. This is due to natural factors that influence the phenomenon of abrasion in a coastal area, including the hydro-oceanographic processes that take place in the sea. Pasir Jambak Beach is one of the beaches in Padang City that is experiencing worrying abrasion. Therefore, it is necessary to research the analysis of physical hydro-oceanographic factors for beach abrasion. This survey was conducted in February - April 2023 at Pasir Jambak Beach. This study aimed to determine the degree of abrasion and its relationship to the hydro-oceanographic physics of the beach. The method used is survey and purposive sampling. The data obtained were tabulated and descriptively quantitatively analyzed by multiple linear regression. The results showed that the beach experienced a dominant abrasion process in the period 1995-2023 compared to accretion with an abrasion rate of 77.94%. The highest average wear rate occurred in 2019-2023 of 3.86 m/year and the lowest in 2003-2007 of 1.9 m/year. Physical hydro-oceanographic factors at Pasir Jambak Beach have a significant influence on the abrasion phenomenon that occurs.
The Quality of Oceanographic Parameters in the Waters of Setan Island, West Sumatra Sipahutar, Alan Nuari; Rifaldi, Rifardi; Mubarak, Mubarak
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): 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 from February to March 2023 in Setan island, West Sumatra. This study aimed to determine the sediment accumulation rate and coral cover, as well as the correlation between sediment accumulation rate and coral cover. The survey method was used in this research. The sediment accumulation rate was measured using a sediment trap. At the same time, the coral cover was observed using the underwater photo transect (UPT) method with a transect length of 50 m. The total suspended solid was analyzed using the Gravimetric method. Observations were made at four sampling points at depths of 3 and 6 m. The sediment accumulation rate at a depth of 3 m ranged from 0.946315 to 1.534992 mg/cm²/day, while at a depth of 6 meters, it ranged from 1.357756 to 1.607786 mg/cm²/day. The percentage of live coral cover at a depth of 3 meters ranged from 3.40% to 31.36%, and at a depth of 6 m, it ranged from 0.33% to 30.50%. The total suspended solids values ranged from 23 to 96 mg/L. Regression analysis showed that the sediment accumulation rate negatively influenced the percentage of live coral cover.
DISTRIBUTION PATTERN OF TOTAL SUSPENDED SOLIDS (TSS) IN KAMPAR RIVER ESTUARY, PELALAWAN REGENCY, RIAU PROVINCE Melas, Febi Betania; Mubarak, Mubarak; Rifardi, Rifardi
Asian Journal of Aquatic Sciences Vol. 7 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

The Kampar River Estuary is the main river in Riau province, which empties into the Malacca Strait and has a unique potential for research. The characteristics of the Kampar River Estuary are concurrent and have high tidal elevations, resulting in the occurrence of a Tidal Bore, which is referred to as Bono. The impact of sedimentation is generally quite detrimental, namely the siltation in several places, such as the waters of the Kampar River Estuary, which are dense areas of human activity. This study aimed to determine the relationship between hydrodynamic patterns, suspended solids' distribution pattern, and the concentration value of suspended solids distribution in the Kampar River estuary. This research method is surveyed and discussed descriptively. Current patterns affect the distribution of sediments in the Kampar River estuary. The TSS distribution pattern tends to follow the same direction as the movement of tidal currents where, during high tide, it tends to lead to the southwest of the Kampar River estuary, while during low tide tends to lead to the northeast and northwest, it this is because, in the Kampar River estuary, there is an island that makes the mouth of the Kampar River estuary V-shaped. Between hydrodynamic patterns and TSS distribution patterns, there is a moderate negative relationship (r = 0.50), which means that there is a significant influence between hydro patterns and TSS distribution patterns in the waters of the Kampar River estuary, between hydrodynamic patterns and TSS distribution patterns in the waters of the Kampar River estuary. The lowest value of TSS concentration in the waters of the Kampar River Estuary at high tide to low tide is Station 7, with a range of 102 mg/L, and the highest value at Stations 3, 4, and 9. At station 3, there are values ranging from 1756 mg/L; at Station 4, there are values ranging from 2823 mg/L; and at Station 9, there are values ranging from 1269 mg/L; the high concentration of TSS results in low brightness in the study area
ANALYZING THE RELATIONSHIP BETWEEN THE IOD (INDIAN OCEAN DIPOLE) AND ENSO (EL NIÑO–SOUTHERN OSCILLATION) ON SEA SURFACE TEMPERATURE AND RAINFALL VARIABILITY IN THE WATERS OF WEST SUMATERA Maatitawaer, Natasya Debora C; Rifardi, Rifardi; Ilahi, Ilham; Mubarak, Mubarak; Tanjung, Afrizal; Basiluddin, Fadhlan
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.72-78

Abstract

This research examines the influence of the Indian Ocean Dipole (IOD) and El Niño–Southern Oscillation (ENSO) on sea surface temperature (SST) and rainfall variability in the coastal waters of West Sumatra over the period 2014–2024. The analysis draws on the Dipole Mode Index (DMI), Niño 3.4 index, SST, and rainfall data, processed using MathWorks and Excel. Regression analysis between field and satellite-derived SST data showed a strong correlation (R² = 0.936), confirming the reliability of satellite data for this study. Findings reveal that positive IOD and El Niño events are generally associated with cooler SSTs and reduced rainfall. In contrast, negative IOD and La Niña phases correspond to warmer SSTs and increased rainfall. The IOD appears to exert a more pronounced influence on SST variability than ENSO. Notably, the combined occurrence of a positive IOD and El Niño amplifies the decline in SST and rainfall. At the same time, the combination of a negative IOD and La Niña enhances increases in these variables. These results highlight the significant role of large-scale climate mode in shaping regional oceanographic and atmospheric conditions in the West Sumatra region.
Pelatihan Penanaman Bibit Mangrove dengan Metode Klaster pada Mitra Sekat Bakau di Desa Buruk Bakul Kabupaten Bengkalis Rifardi, Rifardi; Yoswaty, Dessy; Efriyeldi, Efriyeldi; Elizal, Elizal
Journal of Rural and Urban Community Empowerment Vol. 5 No. 1 (2023): Oktober
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Salah satu kelompok masyarakat yang menaruh perhatian untuk melakukan upaya konservasi hutan mangrove yaitu mitra Kelompok Peduli Mangrove (KPM) Sekat Bakau di Desa Buruk Bakul Provinsi Riau, dibentuk sejak tahun 2019, dengan kegiatan pembibitan dan penanaman mangrove. Namun, dampak abrasi, kegiatan perambahan hutan mangrove, alih fungsi lahan dan berbagai aktivitas antropogenik menyebabkan keberadaan hutan mangrove mengalami kerusakan. Bibit mangrove yang ditanam mitra KPM Sekat Bakau sekitar 1000 batang/bulan. Harga jual bibit mangrove sekitar Rp. 5000/batang, untuk pembelian polybag dan beberapa peralatan tanam Rp. 500.000. Keuntungan yang diperoleh Rp. 4.500.000/bulan. Sebagian keuntungan dibagi untuk 10 orang anggota KPM Sekat Bakau dan sebagian lagi untuk simpanan kas. Hal ini belum memberikan keuntungan yang optimal dari usaha pembibitan mangrove. Tujuan kegiatan yaitu meningkatkan pengetahuan dan keterampilan mitra KPM Sekat Bakau dan masyarakat di Desa Buruk Bakul berupa teknik penanaman mangrove secara klaster (bergerombol) untuk upaya konservasi hutan mangrove. Hasil kegiatan Program Kemitraan Masyarakat (PKM) menunjukkan bahwa peserta pelatihan yang berjumlah 20 orang sangat antusias menerima transfer iptek yang telah diberikan oleh tim penyuluh LPPM Universitas Riau. Kegiatan ini juga telah memperluas jaringan masyarakat di Desa Buruk Bakul dalam program pelestarian hutan mangrove yang ramah lingkungan.
PELATIHAN PEMBUATAN NUGGET IKAN NILA SALIN (Oreochromis niloticus) PADA MITRA IBU PKK DI KELURAHAN PANGKALAN SESAI KOTA DUMAI Yoswaty, Dessy; Rifardi, Rifardi; Mubarak, Mubarak; Elizal, Elizal
Journal of Rural and Urban Community Empowerment Vol. 4 No. 2 (2023): April
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Permasalahan yang sering dihadapi oleh mitra ibu PKK (Pembinaan Kesejahteraan Keluarga) di Kelurahan Pangkalan Sesai Kota Dumai yaitu kesulitan dalam mencari alternatif usaha untuk diversifikasi produk olahan pangan. Akses informasi dan perkembangan teknologi masih terbatas, perlu informasi penting mengenai teknologi tepat guna yang sederhana dan diterapkan pada kehidupan sehari-hari. Kegiatan pelatihan dilakukan tentang pembuatan nugget ikan nila salin (Oreochromis niloticus). Tujuan kegiatan yaitu meningkatkan diversifikasi produk olahan ikan nila salin berupa nugget pada mitra ibu PKK. Manfaat kegiatan yaitu untuk memperoleh keterampilan dan menumbuhkan jiwa kewirausahaan, turut mengsukseskan program pemerintah yaitu Gemar Makan Ikan. Mitra ibu PKK telah menerima pelatihan dan praktek pembuatan nugget ikan nila salin yang telah dilaksanakan pada tanggal 13-15 Juli 2022. Sasaran dalam kegiatan pelatihan yaitu mitra ibu PKK yang berjumlah 20 orang Kegiatan PKM dilakukan dengan memberikan teori atau teknik dan praktek pembuatan nugget ikan nila salin melalui ceramah dan diskusi kelompok secara terarah. Kegiatan pelatihan dapat terlaksana dengan baik, mitra ibu PKK sangat antusias mengikuti pelatihan dan mempunyai motivasi untuk mempraktekkan pembuatan nugget ikan secara mandiri. Hasil penghitungan analisis biaya produk nugget ikan nila salin selama 1 bulan, yaitu Rp. 1.257.360. Pembuatan nugget ikan nila salin dapat memberikan nilai tambah pendapatan melalui kegiatan pemberdayaan masyarakat di Kelurahan Pangkalan Sesai.
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.
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