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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

Author-ID : 3004530

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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HUBUNGAN KARAKTERISTIK SEDIMEN DENGAN HABITAT PENELURAN PENYU DI PANTAI TIRAM, PANTAI KARAMBIA AMPEK, DAN PANTAI GOSONG KABUPATEN PADANG PARIAMAN PROVINSI SUMATERA BARAT Rahmi Relva; Rifardi Rifardi; Elizal Elizal
Berkala Perikanan Terubuk Vol 48, No 2 (2020): Juli 2020
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.48.2.421-433

This research was conducted on 27 April-30 May 2019 at Tiram Beach, Karambia Ampek Beach and Gosong Beach, Padang Pariaman Regency, West Sumatra Province. This study aims to determine the relationship between sediment grain size and the number of turtle eggs. The method used in this research is purposive sampling. The sampling location is divided into 3 stations, each station is divided into 5 sampling points in order to obtain 15 sampling points, of which the fifteen sampling points are the usual nesting sites for turtles. Sediment samples were taken approximately 500 grams, put in a plastic bag, then labeled and then the sample was taken to the laboratory for analysis. The procedure for analyzing the sediment grains for sand and gravel fractions used the wet sieving method, for the sludge fraction was analyzed using the pipette method. The results from the wet sieving method and the pipette method were combined and the mean size (Mz) was obtained. Measurement data were analyzed using linear regression analysis, then correlation and regression analysis to determine the form of the relationship and the strength of the relationship between two or more variables. Sea turtles will lay eggs, namely the mean size ranges from 1.13-1.8 Ø. The coefficient of determination (R2) = 0.53 and the correlation coefficient r = 0.73. This means that the coefficient of determination shows the average diameter (mean size) affects 53% of the number of turtle eggs, while the other 47% is influenced by other factors, for example vegetation around the coast..

KARAKTERISTIK DAN POLA SEBARAN SEDIMEN PERAIRAN SELAT RUPAT BAGIAN TIMUR Edy J Girsang; Rifardi Rifardi
Berkala Perikanan Terubuk Vol 42, No 1 (2014): Februari 2014
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

The study was conducted in June 2013 in the eastern waters of RupatStrait. The purpose of the study was to determine the depositional environmentand environmental changes along Rupat Straitbased on analysis of surfacesediment, suspended sediment concentration, and sediment accumulation value.The method used was survey method. Location of the studywas divided into 15sampling points based onthe pattern oftidal currents and source materials into thewater. The results showed that the study area was dominated by fine s andsediments with as and sediment type. The average concentration of suspendedsolids in coastal waters of Sumatra washigherthan that of the Rupat. The waters ofthe eastern part of the Rupat Strait received sediment from the coastal erosion andsupply of material from the two major rivers; i.e. Dumai River and Masjid River.Characteristics and distribution patterns in marine sediments were influenced bythe character of the sea bottom, the pattern of tidal currents and waves .Keywords : Charackteristics of Sediments, Surface Sediment, Rupat Strait.

CARBON ABSORPTION CAPABILITY THE WATERS IN THE RUPAT STRAIT OF RIAU PROVINCE Siti Ramlah Hasibuan; Rifardi Rifardi; Sampe Harahap
Berkala Perikanan Terubuk Vol 46, No 2 (2018): JULI 2018
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

The purpose of this study isto analyze the uptake of carbon in polluted waters and unpolluted based on suspended sediment concentration in Rupat Strait. This study used multivariate statistics of Principle Component Analysis (PCA) and regression analysis to clarity the relationship between suspended sediments and primary productivity with carbon uptake. The results indicate that carbon uptake in polluted waters range from 0.023-0.026 tonC/m2/year and unpolluted ranged from 0.034- 0.038 tonC/m2/year. PCA analysis shows that the two main axes (F1 and F2) can represent 82.26% of the total diversity of distribution, indicate the contribution of F1 is 70.08% and F2 is 12.18%. The relationship between total suspended sediment with carbon uptake clearly show if total suspended sediment is higher, the carbon uptake will be lower. On the other hand the relationship between primary productivity and carbon uptake, indicate abundance of primary productivity, the carbon uptake will behigher.

CONCENTRATIONS OF HEAVY METALS Pb, Cu AND Zn IN SEDIMENT AND SEA WATER OF TELAGA TUJUH KARIMUN REGENCY RIAU ISLANDS PROVINCE Bintal Amin; Rifardi '; M. Iqbal A
Berkala Perikanan Terubuk Vol 42, No 2 (2014): Juli 2014
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

ABSTRACTThe Study was conducted in July 2012 by taking seawater and sediment samples from Telaga Tujuh Karimun Regency of Riau Islands Province . The purpose of this study was to find out the concentration of heavy metals Pb , Cu and Zn in sediment and seawater in the Telaga Tujuh waters and also to see the relationships between heavy metals Pb , Cu and Zn in sea water with Pb , Cu and Zn in the sediment. Sampling locations were determined by purposive sampling method , where 6 station were choose with three replicates. Based on the results it was suggested that Telaga Tujuh waters are still suitable for aquatic organisms living waters . Higher concentrations of Zn on were found when compared to Pb and Cu bouth in seawater or in sediment . Standard Quality Guideline values for metal concentrations in sediment showed that Pb , Cu and Zn in the sediment were very close to the ERL but still well below the ERM values. The concentration of heavy metals Pb , Cu and Zn in sea water were negative by correlated with concentration of heavy metals in the sediments.Keywords : Telaga Tujuh, Heavy Metals, Sediment, Seawater

Lingkungan Pengendapan Perairan Selatan Estuaria Bagan dan Sekitarnya Pantai Timur Sumatera Indonesia Rifardi Rifardi; Edwar Rufli; Andre Rangga; M Lubis; Yenica Roza; Putri Nilam Sari
Jurnal Ilmu Lingkungan Vol 5, No 1 (2011): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.5.1.p.66-81

The main purpose of this study is to clarify the relation between characteristics of sediments andenvironmental condition based on the analysis of surface sediment samples and total suspendedsediments from the Southern of Bagan Estuary which is located on the East Coast of SumateraIsland, Indonesia. Surface sediment samples and total suspended sediments were collected at 21stations using sediment sampler and van dorm sampler, respectively, in June 2010. The sampleswere analyzed by various analytical approaches i.e. mechanical grain size analysis, ignitionloss method, bulk chemical analysis using atomic absorption spectrometer and sand-graincomposition analysis. In general, the estuary area is characterized by finer sediments (medium-grained sand), by the lower values of organic matters (less than10%), and by the higher contentof Fe and Al per non calcareous clastic content, which is an index of terrigenous material inputrespectively. Concentration of total suspended sediment near bottom is higher than that ofsurface water, indicating sediments turbulented by strong current system. Judging from thedistribution pattern of the Fe and K contents at surface sediment, terrigenous materials weretransported northwestward along the coast of Pekaitan Village and of Barkey Island by strongebb current. Contrastingly, terrigenous materials were transported southeastward along thearea located between coast of Pekaitan Village and of Barkey Island by strong tide current.Geographical distribution of sand grain composition (lithogenous) strongly indicate thatterrigenous materials derived from the hinterland of Sumatera Island discharged through RokanRiver to the Southern of Bagan Estuary. In addition to, terrigenous materials are also resultedfrom coast erosion of Pekaitan Village and of Barkey Island, and turbulented sediments.

PEMODELAN PERUBAHAN PENGGUNAAN LAHAN DI KABUPATEN KAMPAR Muhammad Fadhli; Rifardi Rifardi; Suardi Tarumun
Jurnal Ilmu Lingkungan Vol 14, No 1 (2020): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.14.1.p.52-65

This study aims to identify the types of land use and patterns of land use change in Kampar District. This study uses a survey method with visual interpretation techniques Landsat imagery in 1998,2008,2018 using geographic information systems (GIS). The results showed that 12 types of land use in Kampar district in 1998-2008-2018 were: 1) forest, 2) plantation forest, 3) plantation, 4) mixed plantation, 5) dry land agriculture, 6) rice field, 7 ) shrubs, 8) built up land, 9) mines, 10) open, 11) ponds, and 12) bodies of water. The patterns of land use change in Kampar Regency in the period 1998-2008-2018 were 187 patterns. There are 2 types of patterns of change, namely 1) the pattern of change from vegetated land use to vegetated land use and 2) the pattern of changes in the use of vegetated to non-vegetated land. The first type with the most dominant pattern based on the area of change include: 1) forests - plantations - plantations, 2) mixed plantations - plantations - plantations 3) Forests – plantation forests - plantation forests. The second type with a pattern of change based on area includes: 1) forest – forest - open, 2) mixed plantation - built up land – built up land, 3) mixed plantation - mixed plantation - mine.

KONSENTRASI LOGAM BERAT (CD DAN PB) PADA SEDIMEN PERMUKAAN PERAIRAN TELUK BAYUR PROVINSI SUMATERA BARAT INDONESIA Nanci Aulia Safitri; Rifardi Rifardi; Rasoel Hamidy
Jurnal Ilmu Lingkungan Vol 3, No 2 (2009): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.3.2.p.85-94

The purpose of this study is to clarify the ecosystem quality of Bayur Bay based on heavymetalic elements (Cd and Pb) behaviour in surface sediment. Sediment samples were collectedusing grab sampler from 4 stasions in Bayur Bay , West Sumatera Province, Indonesia in Marchto April 2009. Surface sediment samples were used for the mechanical analysis by the settling-tube method, and mean size diameter was calculated based on the proportion of grain-sizedistribution. Concentration of Cd and of Pb in the samples were determined using AutomicAbsorption Spectrofotimetry (ASS). One Way Analysis Variance (ANOVA) was carried to clarifythe relation between the concentration of Cd, Pb and mean size diameter of sediment. Generaltrend of Cd and Pb distribution strongly indicate that the ecosystem quality of Bayur Bay is insame level for all stations as shown by result of one way anova (Tcalculate < Ttabel). The studyarea is under influence of human activities supplied Cd and Pb to the surface sediment. Resultsof linier regression analysis show negative correlation between Cd concentration and mean sizediameter (Y = -0.031x + 1.262). Contrastingly, correlation between Pb concentration and meansize diameter shows positive value (Y = 0,098x - 0,10). Cd and Pb concentrations in surfacesediment of Bayur Bay are lower than the ERL (Effect Range Low: Cd = 1,2 ppm; Pb = 46,7ppm) and ERM (Effect Range Median: Cd = 9,6 ppm; Pb = 218 ppm) indicating the Bayur Bayecosystem is not yet polluted by the concentrations.

DAYA TAMPUNG SUNGAI TAKUANA TERHADAP BEBAN PENCEMAR SEKITAR TAMAN HUTAN RAKYAT SULTAN SYARIF HASIM Marganda Simamora; Rifardi Rifardi; Manyuk Fauzi
Jurnal Ilmu Lingkungan Vol 12, No 1 (2018): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.12.1.p.70-82

This study aims to analyze the relationship of land use change or changes in land cover with the water quality of the River Takuana and the relationship of pollutant load with the capacity of the Takuana River. River carrying capacity is obtained by the Mass Balance method on the parameters of BOD, COD, DO, TSS, NH3-N, pH and Temperature. Sampling was carried out at three points based on the division of the river. The results showed that there was a relationship between land conversion to river water quality as evidenced by the statistical calculation of the t-hit value indicating that the significance of TSS was 1.7 <0.05, the significance was 0.017 <0.05, which means that TDS and TSS had no significant effect on land conversion while BOD, DO, COD, pH. temperature and NH3N have a relationship with the extent of the function, because the significance of the results is smaller or equal to 0.05 BOD the significance is 0.013 <0.05, DO significance is 0.030 <0.05, the significance temperature is 0.017 <0.05 and NH3N 0.052 <0.05. River carrying capacity is influenced by the amount of pollutants and river water rate while river pollutant load is influenced by the amount of pollutants and water discharge. So the higher the rate of water also affects the river water discharge, based on the calculation of pollutant load and carrying capacity shows that there is a relationship that the amount of pollutant load for the overall parameters of pollutants exceeds the capacity of polluting the Takuana River. for TSS parameters the amount of pollutant load is 57,600 mg / sec and TSS capacity is 37.69 mg / liter, but still meets the class II quality criteria based on Government Regulation No. 82 of 2001 of 50 Mg / liter. TDS pollutant load is 30,430 mg / second, TDS capacity is 21.52 mg / liter but pollutant load still meets class II quality criteria, DO pollutant load is high but still meets class II quality criteria. For high pollutant loads COD, BOD and NH3-N result in lower capacity and have exceeded the class II quality criteria according to GovernmentRegulation No. 82 of 2001. The higher the pollutant load that enters the river, resulting in lower river capacity

PEMODELAN PERUBAHAN PENGGUNAAN LAHAN DI KABUPATEN KAMPAR Muhammad Fadhli; Rifardi Rifardi; Suardi Tarumun
Jurnal Ilmu Lingkungan Vol 13, No 2 (2019): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.13.2.p.162-178

This study aims to analyze the drivers of land use change in Kampar District and to make modeling of land use changes in 2028. This study uses a survey method. To find out the factors driving the changes in land use in Kampar District were analyzed using binary logistic regression with a stepwise method. Forward land use prediction in 2028 with 3 scenarios was carried out by modeling using Markov Chain and Cellular Automata (CA). The results showed that the density population, altitude, slope, distance to the main road, distance to the river, and distance to the subdistrict city are the driving factors that influence changes in the use of forest land to plantations, forests to open land, mixed plantations to built up land, and mixed plantations to plantations in Kampar District The results of land use modeling in 2028 using CA-Markov with 3 scenarios indicate an increase or reduction in several types of land use, especially forests, plantations, paddy fields and built up land use, forest land use decreases widely in scenario I, and scenario II , on the contrary experience an increase in area in scenario III; plantation land use shows the addition of the three scenarios created; Likewise the developed land shows addition to all three scenarios; Furthermore, there is a reduction in paddy fields in scenario I and scenario II, but in scenario III the use of paddy fields does not experience any addition or reduction

KOMUNITAS MOTOR SUPERMOTO OWNER GROUP (SMOG) SIAK Rifardi "; Achmad Hidir
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Vol 4, No 1: WISUDA FEBRUARI 2017
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Motorcycle community is a social group that occurs in modern societies. In this case the role of social groups should have the capital to maintain and develop the social group, where the role of such capital must be owned by every member of the social group, in this case it is a social group motorcycle community. Motorcycle community in this case is a social phenomenon to exist in modern society. This study analyzes the activities / events and the role of capital in the motorcycle community Supermoto Owner Group (SMOG) in Siak. Where the role will be discussed by the economic capital, social capital, symbolic capital, and cultural capital, will then discuss how the strategy to develop the motorcycle community and discuss public perceptions surrounding the motorcycle community, especially motorcycle community Supermoto Owner Group (SMOG) Siak. The theory used in this study is of capital (Economic, Social, and Cultural Symbolic) habitus and Arena. The data analysis was done in answer to the problem is to use qualitative research with descriptive analysis in order to deepen a social phenomenon and then draw conclusions. This research is presented in narrative form qualitatively. Sources of data obtained through the study of literature, books, magazines, newspapers, as well as the articles. Data collection techniques used in this research is the direct observation, interviews and documentation. The sampling technique used was purposive sampling technique. Where the amount informants about 10 people were divided into two parts so that five informants came from motorcycle community members Supermoto Owner Group (SMOG) Siak, then 5 from the surrounding community. From these results motorcycle communitySupermoto Owner Group (SMOG) Siak activities that are positive for them and also the surrounding community. Then motorcycle communitySupermoto Owner Group (SMOG) Siak have also shown the role of capitals, where the economic capital, social, symbolic and cultural which has been owned by each member or the community itself. Then the motorcycle community presence Supermoto Owner Group (SMOG) Siak it also presents the pro and contra in the eyes of the surrounding community. As not all of the view that both these communities.Keywords: Community, Capital (Economic, Social, and Cultural Symbolic), Strategy, Perception

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

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