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All Journal Berkala Perikanan Terubuk Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Rifardi '
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

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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
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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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
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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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
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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Abstract

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
Vertical Distribution of Sediment in the Waters of Bengkalis Strait Bengkalis Regency, Riau Province Dedek Susanto; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in January 2015 with the aim to determine the characteristics of the sediment vertically in Bengkalis Strait. This research used survey method which divided into 7 stations. Sediment samples were taken by using gravity cores. Analysis of the sediment was carried by the size of the analytical method and the drying method.The results showed that sediments in the location was dominated by sand fraction, then mud and gravel fractions. The result of Sediment grain size analysis showed that Bengkalis Strait have characteristics of coarse sand, medium sand, fine sand, very fine sand, silt and medium coarse silt with sorting coefficient consists of well sorted, moderately well sorted, moderately sorted, sorted pooly and very pooly sorted. The distribution of sediment was very fine skewed, fine skewed, near symmetrical, coarse and very coarse skewed. Common sediment characteristics between the station was also seen in the cluster analysis. The results of cluster analysis showed that the sediment grouped into five groups showing clearly different in the characteristics of the sediment between the stations in this area.Keywords: Vertical Distribution, Sediment, Bengkalis Strait, characteristics
SEDIMENT CHARACTERISTIC AND DISTRIBUTION PATTERN OF WESTERN COAST OF RUPAT STRAIT Afrizam '; Rifardi '; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract This research was conducted in May 2014 in the western part of the Rupat strait. The aim of study was to describe the condition of depositional environments in the western part of the Rupat strait. Determination of sampling points done by using purposive sampling method, taking into account the tidal patterns and source of sedimentary material that goes into the waters. The western part of Strait Rupat divided into 12 sampling points. Surface sediments was taken using a grab sampler at all sampling points. Sediment samples were analyzed by using the method of mechanical analysis and the data obtained were processed with analisis. Cluster analysis showed that the study area was divided into three groups (clusters), namely Group I is at the southern and northern of the study area, this area is characterized the strength of the flow of sediment transport the strongest and most stable compared with other groups. Group II was on the edge of the island of Sumatra and Rupat the middle toward the North, this is a transition region between groups I and II were characterized by flow force weaker and more fragile than the first group, but stronger and more stable than group III. Group III were at the edge of the Strait Rupat and Rupat, this area is characterized by the flow of sediment transport the weakest and most unstable compared to other groups.Keyword : Sediment, Characteristics, Distribution Pattern, Rupat Strait
Co-Authors Aditya Dharma Putra Afrizam ' Anna Lilian Arif Teguh Satria Asrori ' Bintal Amin Dedek Susanto Dendy Ariandi Dimas Sochi Satya Mendrofa Elizal, Elizal Eryandi sitanggang Irvina Nurrachmi Jasman ' M. Iqbal A Mubarak ' Musrifin Ghalib Rica Purnama Sari Rinu Maido Robileo Agus Romel Kefriansa Putra Syahril Nedi Syofyan Siregar Wahyu Novra Wanda Yogie Novri Yusda