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All Journal Jurnal Perikanan dan Kelautan Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Rifardi Rifardi, Rifardi
Program Studi Ilmu Lingkungan Universitas Riau, Kampus UNRI Gobah
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science Immunology & microbiology Social Sciences

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Journal : Jurnal Perikanan dan Kelautan

 1   2 
Temporal Study of TSS (Total Suspended Solid) Around Porong River Estuary Due To the Influence of Lapindo Mud Based On Landsat 8 OLI Satellite Imagery Mubarok, Ihsan Dwi; Rifardi, Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 24, No 2 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.24.2.119-129

Abstract

This research was conducted in April 2019 to determined TSS concentrations using Landsat 8 OLI Satellite imagery and of to the coefficient TSS concentrations at period of before and after Lapindo mudflow event using Landsat 8 OLI satellite imagery in Porong River estuary Sidoarjo Regency East Java Province. TSS from 25 sampling points with 3 replication were taken from the estuary. The result showed that fluctuation of TSS occured around Porong River estuary before and after Lapindo mudflow event from 2000-2019. Algoritm of Budhiman (2004) got the best result for analyst TSS concentration around Porong River estuary. The highest concentration was in estuary. In 2008, the concentration in estuary was 216,07 mg/l. (R2 =0,915 ; r = 0,957). The Development of Algoritm of Budhiman (2004) produced formula of TSS (mg/l) = -6.7625 + (1.2129 * (8.1429 * (Exp (23.704 * 0.94 * Band-Red))))
Determination of Relative Sedimentation Velocity using Benthic Foraminifera in Pasaman Barat Sasak Beach Waters West Sumatra Province Firmansyah, Firmansyah; Rifardi, Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 24, No 1 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.24.1.41-51

Abstract

This research was conducted in May - August 2018 in the waters of Sasak Beach Pasaman Barat, West Sumatra Province. The purpose of this research was to determine the relative sedimentation velocity, the type of benthic foraminifera, and the distribution pattern of benthic foraminifera in the waters of Sasak Beach Pasaman Barat, West Sumatra. The method used in this research is purposive sampling method which is divided into 3 stations. The highest relative sedimentation velocity is found at Station I with a value of 28.0%, the relative sedimentation velocity is highest at station II with a value of 35.0%, and at station III 20.0%. The most commonly found foraminifera species are Ammonia beccarii, Quinqueloculina disparilis and Quinqueloculina laviegata. Benthic foraminifera from 3 observation stations can be divided into 6 groups. Group I was characterized by Ammonia beccarii (Line Form B), Ammonia beccarii (Line Form C), Textularia aglutinans and Trochammina inflate. Group II is characterized by Ammonia beccarii (Line Form A, B and C), Nonionoides gratelouupi, Quinqueloculina laviegata, and Spiroloculina laviegata. Group III is characterized by Ammonia beccarii (Line Form A, B and C), Spiroloculina laviegata, and Triloculina oblonga. Group IV is characterized by Ammonia beccarii (Line Form A, B and C), Nonionoides gratelouupi, Quinqueloculina disparilis, and Miliolina subrotunda. Group V is characterized by Ammonia beccarii (Line Form A, B and C), Quinqueloculina laevigata and Spiroloculina laevigata. Group VI is characterized by Ammonia beccarii (Line Form A, B and C), and Sigmoilinita distort. The distribution pattern of benthic foraminifera tends to clumped
Characteristic of Sediment Verticaly on Abrasion Beach in Rupat Strait Riau Province Rochman, Fatchur; Rifardi, Rifardi; Ghalib, Musrifin
Jurnal Perikanan dan Kelautan Vol 23, No 2 (2018)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.23.2.47-53

Abstract

The research has been investigated on November 2017 which located on Rupat Strait, Riau Province. The purpose of this research to conducted character alteration vertically on sediment. 2 sampling point was tooken using 120 cm pipe. Were the result show that sediment dominated by mud. Based on shepard triangle there is 3 kind of sediment which is sandy mud, muddy sand and mud. The mean size (Mz) result for station I and II around 2,97-6,13∅ and contains 4 fraction sediment : medium silt which mean size (Mz) 5,03-6,00, corse silt which mean size (Mz) 4,07-5,00∅, fine sand which mean size (Mz) 2,97∅, and fine silt which mean size (Mz) 6,03-6,13∅.
Waves and Tidal Current on High Tide (Spring Tide Condition) in Rupat Strait Riau Province Wati, Reza Ambar; Rifardi, Rifardi; Mubarak, Mubarak
Jurnal Perikanan dan Kelautan Vol 25, No 1 (2020)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.1.1-5

Abstract

This study was conducted from  November 2017 in Rupat Strait, Riau Province. The analysis of model was done in Laboratorium of Physical Oceanography, Departement of  Marine Science, Faculty of Fisheries and Marine, University of Riau. The research aims to understand the wave and tidal current on high tide (spring tide condition) in Rupat Strait. The significant wave height is about 0.12-0.90 m/s. The current speed  is about 0.18-0.78 m/s. The result of the study indicate that at spring tide condition, the tidal current from Malaka Strait flows up to Rupat Strait by northern and eastern part of Rupat Strait. This condition  influences distribution of sediments in Rupat Strait the cause of the changes coastline
Sediment Suspended Concentration (SSC) Profile in Padang River Estuary Area Bandar Khalifah Sub District Serdang Bedagai Regency North Sumatera Province Hutapea, Yeru Daniel Octryan; Rifardi, Rifardi; Elizal, Elizal
Jurnal Perikanan dan Kelautan Vol 24, No 1 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.24.1.52-60

Abstract

SSC (Sediment Suspended Concentration) is the concentration of suspended sediment. This research was conducted in June 2018 in the Muara Sungai Padang area, Bandar Khalifah District, Serdang Bedagai Regency, North Sumatra Province. This research aims to describe the distribution of vertical and horizontal SSC suspended sediments and the factors that influence them in Padang river estuary  area, Bandar Khalifah District, North Sumatra Province. The method used in this research is the survey method and determining the location of sampling by purposive sampling. Measurement of water quality parameters is carried out in situ, namely temperature, salinity, pH, depth, current speed, and brightness. The results of the study of the distribution of suspended sediments in the waters of the Padang river can be concluded that the pattern of the distribution of suspended sediments when the tide moves towards the upper reaches of the river while at low tide moves towards the sea, namely the waters of the Malacca Strait which is influenced by currents. the largest suspended sediment concentration at tide to low tide is at the sampling point 1 which is 179 mg / l and recedes to pairs at sampling point 1 which is 121 mg / l.
Analisis Foraminifera Bentik pada Sedimen Terumbu Karang di Pulau Pandan Kota Padang Sumatera Barat Arinalhaq, Aminah; Rifardi, Rifardi; Elizal, Elizal
Jurnal Perikanan dan Kelautan Vol 22, No 1 (2017)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.22.1.1-8

Abstract

Foraminifera merupakan salah satu ordo dari protozoa yang bersel tunggal, hidup padalingkungan perairan terutama laut yang dapat dijadikan bioindikator kondisi lingkunganterumbu karang melalui indeks sederhana bernama FORAM Index. Penelitian inibertujuan untuk mengetahui tingkat kelayakan lingkungan terumbu karang berdasarkanforaminifera bentik dilihat dari nilai FORAM Index, Penelitian ini menggunakan metodesurvei pada pengambilan sampel sedimen dan pengukuran parameter lingkunganyang telah dilakukan pada bulan November 2016. Analisis foraminifera meliputi tahappreparasi sampel, kemudian sampel di jentik maksimal 300 individu, dengan dua kalipengulangan, sampel hasil penjentikan dikoleksi untuk identifikasi dengan melihatstruktur morfologi cangkang foraminifera. Hasil dari penelitian ini ditemukan 4 genusforaminifera bentik bioindikator kondisi perairan terumbu karang. Kondisi perairanterumbu karang di gugusan Pulau Pandan berdasarkan FORAM Index (FI) nilainyaberkisar antara 5,31 - 5,98, nilai ini memberi indikasi bahwa perairan sangat kondusifuntuk lingkungan pertumbuhan terumbu karang dicirikan oleh kehadiran Amphisteginanamun memperlihatkan kondisi lingkungan yang mulai menurun dan dicirikan olehkehadiran Quinqueloculina
The Effect of Changes in The Shoreline of The Sea Law Implementation in West Rangsang Subdistrict, Kepulauan Meranti District Siburian, Hendra Yosep; Rifardi, Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 25, No 1 (2020)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.1.53-63

Abstract

Penelitian ini dilakukan pada bulan Oktober 2018 di Perairan Pantai Rangsang Barat, Kabupaten Kepulauan Meranti, Provinsi Riau. Penelitian ini bertujuan untuk mengetahui perubahan garis pantai yang  terjadi di Kecamatan Rangsang Barat dalam rentang waktu 10 tahun terakhir dan implementasi hukum laut tentang pengaturan permasalahan perubahan garis pantai di Kecamatan Rangsang Barat Kabupaten Kepulauan Meranti Provinsi Riau. Hasil pengolahan citra Landsat 5 dan Landsat 8 dengan besar Perubahan garis pantai di Desa Melai adalah 55,56 m (akresi), di Desa Kedabu Rapat sebanyak 50,94 m (abrasi) dan di Desa Bungur sebesar 42,10 m (abrasi). Implementasi hukum laut menurut pasal 15 UNCLOS 1982 dalam penetapan wilayah laut teritorial yang berdampingan dengan negara lain memutuskan uu no 2 tahun 1971 tentang penetapan batas wilayah kedua negara di Selat Malaka. Penentuan titik koordinat tersebut ditetapkan berdasarkan Garis Pangkal masing-masing negara. Dengan diberlakukannya Konvensi Hukum Laut Internasional 1982 sehingga ditetapkan Peraturan pemerintah Republik Indonesia no 38 tahun 2002 tentang daftar koordinat geografis titik-titik garis pangkal kepulauan Indonesia. Dengan penetapan titik koordinat geografis permasalahan pada perubahan garis pantai negara Indonesia dan Malaysia akibat dari abrasi dan akresi dapat diselasaikan dengan memperhatikan titik koordinat geografis pada pulau Rangsang.
Analisis Bioekonomi Sumberdaya Perikanan Tangkap Kabupaten Kepulauan Meranti Provinsi Riau Syaputra, Eldy; Rifardi, Rifardi; Nasution, Syafruddin
Jurnal Perikanan dan Kelautan Vol 21, No 2 (2016)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.21.2.1-8

Abstract

This study aims to determine bioekeonomi capture fisheries in the Islands District Meranti (Maximum Sustainable Yield, Maximum Economic Yield, and Open Access), to assess the status of fisheries in the Islands Meranti Regency using models Schaefer, calculating the profitability of fishermen during fishing operations take place. This research was conducted in June - August 2015 in the village of Sungai Gayung Kiri Rangsang Subdistrict, village of Tanjung Kedabu Rangsang Pesisir Subdistrict and village of Telesung Rangsang Pesisir Subdistrict in Meranti Islands Regency. The method used in this research is survey method with interview and observation, while data analysis using bio-economic modeling. The results of this study suggests that the benefits of fishing effort during the arrest operation took place most largely produced from the mackerel and the status of the fishery in Meranti Islands Regency has achieved economic overfishing.
STRATIGRAFI SEDIMEN PERAIRAN SELAT RUPAT BAGIAN TIMUR Sisochi Wau, Visius Uracha; Rifardi, Rifardi
Jurnal Perikanan dan Kelautan Vol 19, No 2 (2014)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.19.2.1-8

Abstract

The stratigraphy of bottom sediments was investigated in eastern waters of RupatStrait, Riau Province in June 2013. The analysis of sediment were conducted by twomethods i.e : grain-size analysis and ignition loss methods. The result showed that thevertical characteristic of bottom sediments changed irregularly. The vertical character-istic change of sediments was represented by the grain-size distribution, both verticallyand horizontally in the area. The similiarity of sediment characteristic among the sta-tions also represented by a cluster analysis. The cluster analysis showed that the sedi-ments were divided into four clusters which showed clearly the different of sedimentcharacteristic between station in this area.
KOMPOSISI SEDIMEN BAGIAN TIMUR SELAT RUPAT PROVINSI RIAU Sihombing, Tumpal; Rifardi, Rifardi
Jurnal Perikanan dan Kelautan Vol 19, No 1 (2014)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.19.1.45-52

Abstract

The research was conducted in June 2013 in Rupat Starait waters with the aim to deter-mine the constituent materials in the sediment. The Eckman Grab was used to take samples and than the sediment was analyzed to determine the composition and content of organic mat-ter. The results showed that the composition of the sediment composed of lithogenous and biogenous. Lithogenous composition especially in waters and rocks dominating presence even-ly at each station. The highest composition found in a location close to the mainland and one of the areas that get the first time the influence of the tide, from the Strait of Malacca and the flow from Strait of Bengkalis. Lithogenous lowest percentage was found in areas close to the mangrove area whre the station had high composition of litter biogenous. While the station containing the lowest organic matter was the station near the strait of Malacca. Mean while the station closed masjid river and Dumai river containing organic matter was high due to the flow of the river carrying a high content of organic materials. 
Co-Authors Afrizal Tanjung Andrian, Fikri Arinalhaq, Aminah Elizal, Elizal Fatchur Rochman Fertikasari, Indah Firmansyah Firmansyah Hutapea, Yeru Daniel Octryan Mubarok, Ihsan Dwi Musrifin Ghalib Musrifin, Musrifin Pranata, Eryc Siburian, Hendra Yosep Sidabalok, Westy Yulia Sihombing, Tumpal Simanjuntak, Naomi Syafruddin Nasution Syaputra, Eldy Visius Uracha Sisochi Wau Wati, Reza Ambar Widuri, Falsabila