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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 Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment 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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STUDIES OF LITHOGENEUS SEDIMENT TRANSPORT IN THE ESTUARY OF MESJID RIVER DUMAI REGENCY RIAU PROVINCE Yogie Novri Yusda; Rifardi '; Musrifin Ghalib
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was conducted on November 2015 in the Estuary of Mesjid River of Dumai Regency, Riau Province. The aims to determine the amount of lithogeneus sediment that was transported through. Estuary of Mesjid. Determination of sampling points by purposive sampling, Method of sampling, where the sampling point taken was considered to represent the state of the overall area of research. Based on this sampling locations were divided into 8 sampling points. Sampling was carried out by using a water bottle sampler vandorn into three depths, i,e surface, middle and bottom waters. Measurement of current performed at the sampling point 2. Accumulated of sediment to calculate the accumulation of by using sediment traps placed at the sampling point retrieval is done 2 times a day that is at low tide and low tide 1 and 2 that at the. The amount of lithogeneus sediment transport is computed the average amount of sediment transport that comes out for seven days. Then converted data of sediment transport for 1 year, The results showed that the waters of the estuary at low tide greatly influenced by mass of river water by the discharge of 29,76 m3 / sec which is capable of transporting lithogeneus sediment amounted to 78,176 ton / year, of the rate of accumulation of sediment per year for every hectare of the sediment will settle at 289,16 ton / ha / year in waters around the estuary.Keyword : Sediment Transport, Sediment Lithogenous, Estuary of Mesjid
SEDIMENT DISTRIBUTION PATTERNS ANALYSIS AT SHORELINE CHANGED AREAAROUND CAROLINA BEACH PADANG CITY WEST SUMATERA PROVINCE Prastya Bayu Afrian; Rifardi Rifardi; Yusni Ikhwan Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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                                                 ABSTRACTThe study was conducted in Desember 2017 to March 2018 in the Carolina Beach Padang City West Sumatera Province. The purpose of the study was to determine the characteristic of sediment in the area based on sediment grain size distribution, fraction sediment type, sediment statistic parameters and sediment compotition. The metdhod used was survey with purposive sampling method, where the location of study was divided into 10 sampling points across the shoreline changed area. The result showed that the study area was dominated by muddy sand sediment with sediment compotition of lithogenous. Based on their sediment characteristic location of study was divided into 3 area,  (1) abration area, (2) accretion area and (3) estuary area. Founded that there were sediment fraction difference between the accretion area and abration area. Key words: Characteristic of Sediment, Shoreline Change, Carolina Beach
ANALYSIS OF SEDIMENT FRACTION AND ITS RELATIONSHIP WITH CONCENTRATION OF HEAVY METALS IN SEDIMENTS IN COASTAL SEA WATER IN PARIAMAN CITY Tri Radiko Felik; Rifardi Rifardi; Bintal Amin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT             This research was conducted in February-March 2019. Purpose of this study was to determine sediment fraction, concentrations of heavy metals (Cu and Zn) in sediments, and the relationship of grain size of sediments with concentrations of heavy metals (Cu and Zn) in sediments in coastal marine waters of Pariaman City. The method used is the survey method, by determining the location of the sampling point by purposive sampling where the sampling location consisted of 3 research stations and each station consisted of 5 sampling points. The results showed that sediment types in the form of sandy mud and mud with an mean size (Mz) 5,317-7,267 Ø with the classification of coarse silt to fine silt, sorting 0,76-2,39 Ø showed the sorting of moderately to very poorly sorted sediments, skewness (-0,351) - (-0,919) with the classification of sediment grains tend to be very coarse skewed, kurtosis 0,49-10,24 indicates that energy works change and are not the same everywhere. The average concentration of heavy metals in sediments (Cu) ranges from 10,64-12,28 mg / kg and (Zn) 49,39-50,06 mg / kg has not crossed the threshold. The average value of Contamination Factor (CF) Cu (0,190-0,219) and Zn (0,537-0,544), Polution Load Index (PLI) ranged from 0,319-0,345, and the Potential Ecological Risk Index (PERI) ranged from 1,487-1,641 indicating that heavy metals Cu and Zn in sediments with low levels of contamination, not contaminated, and do not cause ecological risks. The results of a simple linear regression show the relationship of mean size (Mz) of sediment with the concentration of Cu heavy metals (y = 3,3077 + 1,3738x with r = 0,5143) and Zn (y = 28.014 + 3.5534x with r = 0,5427) interpret the strength of the relationship moderate with the form of a positive linear relationship. 
STUDI PENYEBARAN SEDIMEN TERSUSPENSI DI PERAIRAN LAUT PAYA KUNDUR PROVINSI KEPULAUAN RIAU Robileo Agus; Rifardi '; Musrifin Ghalib
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted from September-October 2016 at Paya Kundur marine waters, Karimun Regency of Riau Islands Province. Samples were analyzed in the laboratory of Marine Chemistry, Marine Science Department, Faculty of Marine and Fisheries University of Riau. This study aims to determine the vertical profiles of suspended sediment in the marine environment Paya Kundur. This study used survey method, which consists of nine sampling points. Water samples were taken vertically, consists of three levels, namely surface waters, middle (columns), and bottom waters with a distance of ± 6 m. Vertically (surface, middle and bottom) of the distribution of suspended sediment influenced by tidal currents, the location and tin mining activities in bottom waters. The distribution pattern of suspended sediments at ebb tide and flood tide has the highest content at the bottom. The highest content of suspended sediment distribution dominated in the tin mining area to the west of Kundur. Based on quality standart for marine organisme and TSS for fisheries, it can be concluded that waters fertility of Paya Kundur has passed the quality standard and its not suitable for fisheries activities.Keywords: Suspended Sediments, Marine Waters Paya Kundur
ANALISIS SEDIMEN DAN PERUBAHAN GARIS PANTAI UTARA PULAU RANGSANG KABUPATEN KEPULAUAN MERANTI Anna Lilian; Mubarak '; Rifardi '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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The main purpose of this study was to reveal the depositional environmentand the movement of coastline. This study was conducted in January 2013 innorthern part of Rangsang Island, Meranti District. Sediment samples were takenfrom 11 station sand analyzed by using mechanical granular method. The methodof remote sensing linear regression was used to determine the movement ofcoastline. The result of study show that the surface bottom sediment ischaracterized by sand and mud fractions, and is dominated by bottom characterof sand. The study area was a transitional area where waves and currents werepredicted to change frequently through not too significant. The currents strengthtend to move with the fluctuations. The average change of the coastline during thepast 13 years (2000 to 2013) was 7,455 m/yr with the greatest changes occurredat station 7, i.e. Kedabu Rapat Village, with 8.54 m/yr. The speed movement ofcoastline was marked by the destruction of land cover in the north along the coastof the Rangsang Island as indicated by destruction of mangrove forests andvegetation coast, the sinking of jetty, roads and houses as well as the erosion.Kata kunci: movement of coastline, sediment coastal, Rangsang Island, abrat
PENGARUH KECEPATAN ARUS, CEPAT RAMBAT GELOMBANG, DAN UKURAN PARTIKEL SEDIMEN TERHADAP VOLUME ANGKUTAN SEDIMEN Aditya Dharma Putra; Rifardi '; Musrifin Ghalib
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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This study was conducted from March to April 2016 in the Laboratory of PhysicalOceanography Marine Science Department Faculty of Fisheries and Marine Science University ofRiau. This study aimed to explain a relationship between current velocity and wave propagationspeed, and sediment particle size to the results of sediment transport volume. The method used wasan experimental design with 4 treatments. Current velocity and wave propagation speed wereconsists of 2 level factors (V1 and V2) and sediment particle size were consists of 2 level factors(D1 and D2). Observations used the flume tank and wave generator for 10 minutes. The resultsshow that there was an effect of current velocity, wave propagation, and sediment particle size tosediment transport volume. If the current velocity increase so sediment transport volume alsoincreased. While if sediment particle size increase the sediment transport volume decreased.Observations in the laboratory and calculation of sediment transport that used an Engelund-Hansenformula showed differences. Differences caused by oceanographic factors such as water andsediment density, gravity, water depth, salinity and consistency.Keywords: The Volume of Sediment Transport, Current, Wave, Particle, Velocity.
Vertical Distribution of Benthic Foraminifera in Sediments in the Waters of Western Rupat Strait Bengkalis Regency, Riau Province Rica Purnama Sari; Rifardi '; Syahril Nedi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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The research was conducted in May 2014 in the coastal waters of the Western Rupat Strait. The research aimed to determine the distribution patterns of benthic foraminifera and relative velocity of sediments in the Rupat Strait. This research used purposive sampling method which divided location into 3 stations.Benthic foraminifera from 3 stations can be divided into 4 groups. Group I was characterized by Ammonia becarri, Baculogypsina sphaerulata, Bolivina humilis, Bolivina pacifica, Angulogerina angulosa, Bolivina puncata and Cancris auriculus. Group II, was characterized by Textularia schencki, Globorotalia tumida and Loxostomina limbatum. Group III was characterized by Ammonia beccarii and Textularia neoconica. Group IV was characterized by Ammonia beccari and Textularia foliacea. Distribution pattern of benthic foraminifera tended to be clumped. The highest value of L/TL occurred to the north of Rupat Strait, at sampling points 8 and 9 received a supply of sediment from Malacca Strait, L/TL was medium at sampling point 5 and 3. Sampling point 2 which was located at the area south of the Strait of Rupat had a weak current (0.1 m/s) and sampling point 5 which was located far from the coast and influenced the strong currents and tidal estuary 7 of Sungai Mesjid while sampling point close to the tidal currents of Malacca Strait. While L/TL lower in areas affected were strong currents of energy that sampling point 4 (0.13 m/s) and the sampling point 1 was Sungai Mesjid basin, sampling points 1, 3 and 6 which was the mangrove areas.Keyword : Rupat Strait, Sediment, Distribution, Benthic, Foraminifera,
KAPASITAS ASIMILASI TOTAL SUSPENDED SOLID (TSS) DI MUARA SUNGAI NERBIT BESAR KELURAHAN LUBUK GAUNG KECAMATAN SUNGAI SEMBILAN KOTA DUMAI PROVINSI RIAU Romel Kefriansa Putra; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study aimed to determine the ability of estuary to accommodate the total suspended solids that was derived from household activities, or other events and factors at Nerbit Besar River of Lubuk Gaung Village of Sungai Sembilan Sub-District of Dumai City Riau Province. The results showed that the volume of the estuary during spring tide (Vh) was bigger than the volume of the estuary at low ebb tide (VI). The pollution load into the estuary of Nerbit River at ebb tide was bigger than when spring tide. Estuary volume in high at tide (Vh) was bigger than the volume of the estuary at during neap tide (VI). The pollution load into the estuary of Nerbit River during ebb tide was bigger than neap tide. Conditions assimilation capacity at the spring tide and during neap condition has not been exceeded (under capacity) because the value of the load capacity (KB) (KBS, KBP, and KBBM) bigger (BP) pollutant load.Kata Kunci: Assimilation Capacity, Total Suspended Solid (TSS), Nerbit Besar River
SURFACE SEDIMENT OF COASTAL WATERS OF PANDAN TAPANULI DISTRICT OF NORTH SUMATERA PROVINCE Julyana Julyana; Rifardi Rifardi; Musrifin Galib
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract This research was conducted from May - June 2017 in Beach Pandan district Tapanuli central north Sumatera Province. The purpose of this research is to know the type of material constituents horizontally in Pandan coastal waters. Sediment samples were taken using a grab sampler to take samples from 2 stations consisting of 6 sampling points and then analyzed for composition and organic matter content in sediments.The result showed that the composition of sediments found in coastal waters of pandan consisted of lithogenous( rock, mica, and quartz) and biogenous( litter, foraminifera and molluscs). Especially lithogenous composition of rock dominates the presence in the waters and evenly distributed in each station. The type of rock is derived from erosion and antropogenic activity in the surrounding waters. Keywords: Composition, Horizontal Sediment, Pandan Beach.
STUDY ON THE SUSPENDED SOLIDS IN THE WEST COASTAL WATERS OF BENGKALIS Arif Teguh Satria; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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This study was carried out in May 2012. It aimed to find out on the stageextent of suspended solid in the west coastal waters of Bengkalis, in Riauprovince. This study used survey method and van Dorn sampler to collect thewater samples at 7 stations of the study area. The National Standard Method ofIndonesia for suspended solid analysis was used to deal with the main goal of thestudy. The result showed that the average stage of suspended solid was differentfor all stations. The considerable one was found in the station 4 comparing to theother stations. It caused station 4 was located at the confluence of the tidal currentpatterns come from the Malacca Strait low tide that come with the current of theriver around the west coastal water of Bengkalis.Key word : Suspended Solids, Water Of Bengkalis
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 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