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Syahril Nedi
Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Composition, Types, and Abundance of Microplastics in Water, Sediments, and Blood Clams (Anadara granosa) in the Coastal Waters of Sinaboi, Rokan Hilir Regency Rinaldy, Rahmat; Amin, Bintal; Nedi, Syahril
Journal of Coastal and Ocean Sciences Vol. 7 No. 2 (2026): May
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.7.2.92-101

Abstract

Microplastics are plastic particles smaller than 5 mm that are difficult to degrade and tend to persist for long periods. This study aims to analyze the types and abundance of microplastics, as well as differences in abundance and their relationships in water, sediment, and blood clams (Anadara granosa). This study was conducted in the waters off Sinaboi Beach, Rokan Hilir Regency, and continued at the Marine Chemistry Laboratory, Department of Marine Science, Faculty of Fisheries and Marine Sciences, Universitas Riau. The method used was a survey employing a purposive sampling approach. The results of this study indicate that the composition of microplastic types found in the waters of Sinaboi Beach included fibers, fragments, films, foams, and granules (pellets); however, in the sediments and blood clams, only granules (pellets) were found. The average abundance of microplastics in water, sediment, and blood clams was 1,467 particles/L, 1,299 particles/g, and 6,844 particles/g, respectively. Statistical analysis showed that the abundance of microplastics in water, sediment, and blood clams based on sampling stations did not differ significantly (p > 0.05). Microplastic abundance in blood clams differed significantly from that in water and sediment (p < 0.05), whereas the comparison between water and sediment showed nearly equivalent abundance levels (p > 0.05). The strongest relationship was found between microplastic abundance in blood clams and sediment, showing a moderate positive correlation
Abundance of Microplastics in Water and Sediment in Coastal Waters of Tanah Merah Village, Meranti Islands Regency Saputra, Rengki; Amin, Bintal; Nedi, Syahril
Journal of Coastal and Ocean Sciences Vol. 7 No. 2 (2026): May
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.7.2.108-113

Abstract

This study aims to analyze the types and abundance of microplastics in water and sediment between research stations and to examine differences in microplastic abundance across sediment depths in the coastal waters of Tanah Merah Village, Meranti Islands Regency. Samples were taken from three different locations: residential areas, fishing ports, and mangrove areas. The number of water and sediment samples from the three research stations was 27. Water quality parameters, including temperature, salinity, pH, and current velocity, were measured to assess the condition of the aquatic environment. The results showed that four types of microplastics were found, namely fragments, fibers, films, and pellets. The abundance of microplastics in seawater had an average value of 0.86 particles/L, with fragments being the most dominant type. Meanwhile, the abundance of microplastics in sediment had an average value of 1084.33 particles/kg of sediment, with fibers dominating. Based on sediment depth, the highest microplastic abundance was observed at station three in the 0-10 cm layer, with an average of 1010 particles/kg of sediment. The abundance of microplastics in water and sediment shows a significant difference. This is because there is a significant relationship between the abundance of microplastics in water and sediment
Marine Tourism Suitability Index in the Padang Beach Tourism Area, West Sumatra Ishlahul Fikri; Etty Riani; Syahril Nedi
Jurnal Penelitian Pendidikan IPA Vol 10 No 3 (2024): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i3.5109

Abstract

This research was conducted to determine the suitability of marine tourism conditions for the beach recreation category in order to ensure the sustainability of marine tourism, as Kawasan Wisata Pantai Padang is frequently visited by both domestic and international tourists. This can increase anthropogenic activities in the area and lead to a significant amount of marine debris, especially plastic waste, thus potentially compromising the aesthetic value of the tourist beach and even causing environmental pollution and negative impacts on humans. The collection of IKW data employs the purposive sampling method. The observation stations are divided into 8, each observation station consists of an area with different characteristics related to human activities such as densely populated areas, river estuaries, tourist areas, and sparsely populated areas. The determination of the suitability index for beach recreational marine tourism is carried out using a suitability matrix analysis, considering 10 parameters such as Beach Type, Substrate Material, Water Depth, Water Clarity, Current Velocity, Beach Slope, Coastal Land Cover, Hazardous Biota, and Freshwater Availability. The condition of the suitability index parameters for recreational beaches in the Padang Beach Tourism Area at stations 2, 3, 4, and 5 obtains a value of 2.56, indicating that they fall into the category of highly suitable (total score greater than 2.5). Furthermore, at stations 1 and 6, the obtained values are 2.095, classifying them as suitable (total score slightly less than 2.5), and stations 7 and 8 achieve a value of 1.89, categorizing them as not suitable (total score less than 2.0).The results indicate that overall, the Padang Beach Tourism Area falls within the category of highly suitable for beach recreational tourism and can be further developed in its management.
Co-Authors AA Sudharmawan, AA Abdullah &#039; abmi, cyndy Adini Dwi Ratna Hafnizar Afdol, Muhammad Afrizal Tanjung Afrizal Tanjung Al Usman Alfiati Silfi Andhini, Nadia Andika Sitohang Anthony Hamzah Aqil Fikar Rivai Aras Mulyadi Aritonang, Desy Novela Azhara Diana Azizul Fauzan Bambang Pramudya Bariddah, Sania Barnes Silitonga Besri Nasrul Billa, Yulia Salsa Bintal Amin Brilliant Esye Lousiana Budijono, Budijono Chandra M Aulia Damai S Harefa Damaiyanti, Novi Defandra, Alif Denny B Hutagaol, Denny B Dessy Yoswaty Dewi, Anggie Sukma Dewita Dewita Dianti Farhana Kamasela Edy T S Sihombing Efendi, Musanif Efriyeldi, Efriyeldi Elizal Elizal Elizal Elizal Elizal Elizal Elizal, Elizal ESTY KURNIAWATI Etty Riani Etty Riani Exaudi, Bonita Tiolina Fajri Ramayori Fatma, Nisa Tria Fauzan, Azizul Febri Wando Situmorang Feliatra Fikri, Ishlahul Fuad, M Anwar Gurning, Misael Gusmanti, Afni Herlin Margaretha Situmorang Hesti Asriwandari Hisbullah, Ali Akbar Irvina Nurachmi Irwan Effendi Irwan Effendi Irwan Irwan Ishlahul Fikri Islamiati, Bening Jumahat Siregar, Jumahat Jumiati, Melvy Khaironisa, Riska Lamun Bathara Lazuardi, Andika Lubis, Nur Aisyah Mahdiyah, Evfi Malihah, Maida Manik, Yolanda Manuwoto Manuwoto Mayang Shintana, Mayang Meiska, Muthia Michael Prawira, Michael Moulidia, Candri Muhammad Aditya Pradana Muhammad Amien Musrifin Ghalib Musyirna Rahmah Nst Mutia, Safira Nababan, Sumiati Friesledi Nasution, Tio Afandi Ningrum, Indah Puspita Nursit Wijayanto Nursyirwani, Nursyirwani Octavia Lorensa Br Sinaga Parbo, Annisa Presti Pasaribu, Ridwan Saiful Basri Pauji, Risky Antonio Paul Rozeki Sinaga Phivi Andriza Phivi Andriza Pradana, Muhammad Aditya Pramukti, Masdhuki Puspita, Sarah Putri, Rahmi Putri, Rahmi Delima Putri, Rukiana Audi Rahmat Hidayat Rambe, Sakinah Rachmadani Rasmiati, Eva Resfianto Resfianto Rica Purnama Sari Ridowan Kolif Ridwan Manda Putra Ridwan Manda Putra Ridwan Saiful Basri Pasaribu Rifaldi Rifaldi, Rifaldi Rifardi Rinaldy, Rahmat Rio Aprialis Safitra Riska Khaironisa Ronal Kurniawan Ronaldy Saputra Simamora, Ronaldy Saputra Rozalina, Rozalina Rozalina Saharudin Saharudin Saputra, Muhammad Nasrul Saputra, Rengki Sari, Lita Semangat Riski Hasibuan Sihaloho, Elpon Silitonga, May Sarah Simanjuntak, Benny Ly Sinaga, Octavia Lorensa Br Sirait, Juliper Parasian Siregar, Sofyan Sofyan Husein Siregar Sri Ramadhani Suardi &#039; Sukendi Sukendi Sumiati Friesledi Nababan Suriyanto Suriyanto Syafruddin Nasution Syah, M. Rofofiif Syahira, Siti Aliyah Syukri Fajar Tampubolon, Theresia Tengku Rahma Lopi Tomi Suhendra Utama, Rinol Putra Wage Pranowo Windarti Windarti Yandra, Yoli Yenisustri Ani Yulina Sari Yunus, Budi Andri Yusni Ikhwan Yusni Ikhwan Siregar Zulkifli &#039; Zulkifli Zulkifli