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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

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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Articles

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ANALISIS SEDIMENTASI DI MUARA SUNGAI ROKAN PROVINSI RIAU Jannata Rahmad Putra; Rifardi Rifardi; Mubarak Mubarak
Berkala Perikanan Terubuk Vol 44, No 1 (2016): Februari 2016
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

The research were conducted in River estuary of Rokan, Riau Province on Mei 2014. Sedimentation analysis were investigated by various method i.e, sedimen grain-size analysis, Total suspended solid analysis, mechanism of particle disseminated, river’s sediment transport analysis, longshore sediment transport analysis, coastline chance analysis and absolute sedimentation velocity. The research was aim to explained sedimentation procces covered mechanism of sediment transport and sedimentation rate, and then could be able to gave the solution for preventive study of River estuary of Rokan Sedimetation. The result of grain-size analysis showed that mean size were dominated by find sand, sorted by poorly sorted. The disseminated of sediment in deep water was tended to very fine skewed dan skin-deep was very coarse skewed. Mechanism of disseminated particle result when tide, find sand sediment was transport as 128,52 m to the south-east in 23,33 minute. On the contrary to the northwest as 88,10 m in 16 minute. Very find sand was transport as 82,59 m to the south-east in 15 minute at tide and on the contrary to the northwest as 67,12 m in 11,27 minute. Total Sediment Transport Formulae showed 137.023 m3/year of sediment transport was occurred, while longshore sediment transport was 33.616.808,53 m3/year at the River estuary of Rokan. The coastline chance showed addition of land at the estuary was 240.096.862,77 m2 , accretion was 280.492.425,46 m2, and abration was 27,935,195.86 m2. From sediment total calculation in a year comparing by 60 years accretion showed, the absoluted sedimentation velocity was 0,19 cm/year. It was low, so that concluded the contriction of estuary by accretion.

ANALYSIS OF SEDIMENTATION RATES IN THE ESTUARY WATERS OF THE BOKOR RIVER, KEPULAUAN MERANTI DISTRICT, RIAU PROVINCE Anggie Agustian; Rifardi Rifardi; Elizal Elizal
Berkala Perikanan Terubuk Vol 48, No 3 (2020): November
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.48.3.558-567

Penelitian ini bertujuan untuk mempelajari jenis sedimen dan laju sedimentasi yang terjadi di perairan pantai Muara Sungai Bokor. Penelitian ini menggunakan metode survey dimana sampel diambil dari enam lokasi yang dipilih secara purposif, kemudian semua sampel dianalisis di laboratorium ilmu kelautan. Hasil penelitian menunjukkan bahwa laju sedimentasi di Muara Sungai Bokor tinggi yakni antara 14,267 – 16,520 mm/tahun. Selanjutnya, akumulasi sedimentasi yang terjadi berkisar antara 0,0142 – 0,0165 m3/tahun dan 47.083 – 54.006 kg/ha/tahun dan jenis sedimennya didominasi oleh lumpur berpasir. Tingginya laju sedimentasi di perairan ini barangkali berkaitan erat dengan tingginya nilai TSS pada kolom air di mulut muara, faktor oseanografis dan tingginya pemanfaatan lahan serta aktivitas masyarakat di kawasan pesisir daerah ini. Adapun besaran nilai TSS dimaksud berkisar antara 136 – 398 mg/l.

THE FEASIBILITY ANALYSIS OF THE FLOATING NET CAGE BUSINESS BY REVIEWING THE ECONOMIC CALCULATIONS AND CARRYING CAPACITY OF THE KAMPAR RIVER ENVIRONMENT IN BULUHCINA VILLAGE, SIAK HULU DISTRICT, KAMPAR REGENCY Yudho Harjoyudanto; Rifardi Rifardi; Windarti Windarti; Andri Hendrizal; Rina D'rita Sibagariang
Berkala Perikanan Terubuk Vol 47, No 3 (2019): NOVEMBER 2019
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

In recent years, many net cages for aquaculture activities, especially for culturing Wallago leeri and Mystus numerus are placed along the Kampar River, especially in the Buluhcina Village. The remain of fish feed, namely rotten chicken flesh have polluted the water. This study aimed to identify the cage culture profile; to analyze the feasibility of the business and the carrying capacity of the environment. This research was conducted in August 2016 – March 2017. There are three observation stations, Station 1 (before the cage area), Station 2 (the cage area) and Station 3 (after the cage area). Sampling was conducted once. The length of the river is 1.4 Km and 594 single unit net cages are placed along 1,2 Km river. Among the cages, 570 units (96% )are used to the culture of W. leeri, 19 units (3.2%) for M. numerus and the rest, 3 units are for rearing Pangasius sp. and Oreochromis niloticus (1 unit). The carrying capacity of the waters is 496.1 tons/year. The current annual production of W. leeri is 228 tons/year, it is less than the maximum potency. It is predicted that the culture can be increased by 258.5 ton/year or 646 cages. The recent RCR value is 1.120, indicates that this business is profitable and it could be continued.

CARRYING CAPACITY SERVICES BASED ON CLEAN WATER SUPPLY ECOSYSTEM IN SOUTH TAPANULI DISTRICT Ambosa Hidayat; Rifardi Rifardi; Suwondo Suwondo
Berkala Perikanan Terubuk Vol 48, No 3 (2020): November
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.48.3.525-535

Environmental carrying capacity with the other methods has been used by other countries especially developed countries. One of method was based on ecosystem services which developed by MEA in 2005. This approach looked environmental carrying capacity through benefits that people could get on it. In the other hand, environmental carrying capacity based on ecosystem service could integrated in spatial urban regional planning or other developing plan. Ecosystem services are benefits that humans getfrom ecosystems. Sustainable development era has increased demand on ecosystem services information to be incorporated into various development policies and planning. This research Purpose to assessing spatial distribution of ecosystem services for clean water supply as basis of management for sustainable resources. The research method was an ecosystem service approach using two estimating variables, land cover and ecoregion as the landscape ecosystem. Each estimator variables assessed of Ecosystem services by expert judgment with coefficient values. This research specifically discusses the comparison of the results of maps of ecosystem services formulated through experts' judgement on land use based proxy and a combination of land cover and ecoregion. We use Analytical Hierarchy Process (AHP) with pairwise comparison method to asssess the potential of ecosystem services from land cover and ecoregion. The case study area is south tapanuli district, while the type of ecosystem services analyzed is type of clean water supply. The results of the calculations show that the index of ecosystem services resulting from acombination of land cover and ecoregion produces a more accurate map of ecosystem services with qualitative information. The coefficient values were processed and analyzed by using GIS technique to produces spatial distribution of Ecosystem Services values which were divided into five classes of the ecosystem services : very high, high, medium, low, and very low. The results showed that south tapanuli district have great potentials to provider the ecosystem services for clean water supply with medium to very high class value of ecosystem services (36,17% of the South Tapanuli District).

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

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 Siregar, Rafly Fadiansyah 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

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