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Syahril Nedi
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Physics Public Health Social Sciences Other

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ANALISIS FRAKSI SEDIMEN DAN BAHAN ORGANIK DI PERAIRAN MUARA SUNGAI DUMAI PROVINSI RIAU Manik, Yolanda; Nedi, Syahril; ', Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The purpose of this researched was to analize the consistency of organic material and sediment fraction on estuary in dumai river. The research was with purposive sampling on four stutions. The analysis of sediment fraction in estuary in dumai river had been dominated by mud substract. The result mean size wened very fine sand, of consistency organic material is ranging 7,37 - 24,01 mg/l. The result sorting value wered poorly kurtosis value were ektremly leptokurtic, and skewness dominant value were negative. Difference of fine grafain and type of sediment on estuary in Dumai River had effect by physics and chemical factor.Keyward: sediment fraction, sediment statistic parameter and organic material.
THE CORRELATION BETWEEN OIL CONTENT AND ABUNDANCE OF DIATOMS IN THE WATERS OF TANJUNG BALAI KARIMUN, KARIMUN REGENCY RIAU ISLANDS PROVINCE Yunus, Budi Andri; Nurrachmi, Irvina; Nedi, Syahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was conducted in April 2017. The purpose was to analyze the oil content, to determined type and abundance of diatoms, and to determine the correlation between oil content and abundance of diatoms in the waters of Tanjung Balai Karimun, Riau Islands Province. Survey method used consisted of four stations with three replications. The results, the average value of oil content ranged between 0.1820-0.5413 ppm, and the abundance of diatoms were between 54-132 ind/l. The ditoms which composed of 12 species namely Bacillaria sp., Coscinodiscus sp., Fragilaria sp., Isthemia sp., Guinardia sp., Lyngbya sp., Leptocylindrus sp., Nitzschia sp., Pleurosigma sp., Rhabdonema sp., Rhizosolenia sp., and Streptotheca sp. The correlation between oil content and the abundance of diatoms was negatively strong which meant the higher the oil content the decreased the abundance of diatoms in Tanjung Balai Karimun waters. The equation regretion was y = 135.0-149.7x, and the determination coefficients (R2) = 0.561 and the coefficient correlation (r) = 0.749.Keywords: Correlation, abundance, diatoms, oil content, Tanjung Balai Karimun.
DETERGENT AND DIATOM ANALYSIS IN SELAT AIR HITAM WATERS, KEPULAUAN MERANTI REGENCY, RIAU PROVINCE Fuad, M Anwar; Nedi, Syahril; Siregar, Yusni Ikhwan
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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ABSTRACTThis research aims to analyze the detergent and diatom. content that has been implemented in April 2017. in the Selat Air Hitam Water, Kepulauan Meranti Regency. The method used in this research is survey. Analysis of detergent and Diatom content was done at the laboratoriumkimialaut and Diatom identification was performed at the laboratoriumbiologilaut. The results showed that the detergent content in the waters ranged from 0.5714 to 0.8095 mg /l. Diatom abundance based on laboratory test was 95,83 - 137,84 Ind /l and the relationship of detergent and diatom content in waters by using linear regressiony = 222,0 + - 156,9x with determination coefficientR2= 0,867 and correlation coefficient r = 0.9311. The relationship between detergent and diatom in the waters shows a very strong relationship. Keywords: Detergent, Diatom, Selat Air Hitam, Kepulauan Meranti. 
ANALYSISOF METAL CONTENT OF Pb, Cu, AND CrIN LOKAN (Polymesoda expansa) FROM MAROK TUA AND KOTE COASTAL WATERS OF SINGKEP ISLAND LINGGA REGENCY RIAU ARCHIPELAGO PROVINCE Islamiati, Bening; Nurrachmi, Irvina; Nedi, Syahril
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 on January - March 2018 in Marok Tua and Kote Coastal Waters, Pulau Singkep, Lingga Regency, Riau Archipelago Province. The purpose of this research is to know the metal content of Pb, Cu, and Cr on soft tissue in Lokan (P.expansa)based on 2 stations and 3 different sizes. In addition, to determine the status of heavy metal pollution and safe limits of consumption of lokan.The research used is dry method based on Yap et al., (2003).The results showed that the highest metal content of Pb was found at Station 2 with small size(6.9893 µg/g), the highest Cu metal content was found at Station 1 in large size(62.9547 µg/g) and the highest Cr content contained at Station 2 in large size (4,5800 µg/g).The MPI value of Marok Tua is 9.35 and in Kote is 8.69.Based on the calculation of PTWI, lokan still safe to consumed if it not exceed the safe limits of consumption for Pb, Cu, and Cr metal in Marok Tua (1.4842 kg/week; 18.5391 kg/week; and 1.9645 kg/week) and at Kote for Pb, Cu, and Cr metals (1.1960 kg/week; 37.0850 kg/week; and 1.5154 kg/week). Key Words : Marok Tua, Kote, Heavy Metal, Lokan (Polymesoda expansa)
THE CONTENT OF ORGANIC MATTER IN WATER AND SEDIMENTS IN COASTAL WATER MIRROR DISTRICTS SERDANG BEDAGAI NORTHERN SUMATERA PROVINCE Sihaloho, Elpon; Nedi, Syahril; Nurrachmi, Irvina
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                Organic matter is one indicator of environmental fertility either on land or at sea. Content Organic matter in the waters will experience an increase caused by discharges from households, agriculture, industry and organic waste from land to coast. The objective of this research is to know the input of organic material entering the waters of Cermin Beach and to know the content of organic material in water and sediment in the waters of Coast Mirror and the relation of organic matter content to water and sediment. The result of calculation of organic matter content in water ranged from 14,19 - 34,76 mg / l and the content of organic matter in sediment ranged from 0,33 - 8,90%. Furthermore, through simple linear regression test known that the relationship of organic matter content in water and sediment has a weak relationship with the correlation r = 0.137. The analysis of sedimentary fractions in the Coastal waters of Mirror is dominated by sandy substrates.  Key Words : Organic Matter, sediment, Water Of Mirror                         
CONCENTRATIONS OF Cr, Cu AND Zn IN THE SHELL HARD CLAM (Meretrix meretrix) FROM THE COASTAL WATERS SEI NAGALAWAN SERDANG BEDAGAI REGENCY NORTH SUMATRA PROVINCE Simanjuntak, Benny Ly; Amin, Bintal; Nedi, Syahril
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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ABSTRACTThis research was conducted on February 2018 by taking samples of M.meretrix  clams in the coastal waters of Sei Nagalawan, Serdang Bedagai Regency in North Sumatra Province. This research aims to know the metals Cr, Cu and Zn concentration in different sizes hards clams M. meretrix with different sizes and  the difference in metal concentration between the stations. This research also aims to know the Metal Pollution Index (MPI) in coastal waters of Sei Nagalawan Village. Cr was highest in 19,5293 µg/g) of the stations is 3. Cu was highest in 4,4187µg/g) of the stations is 3. Zn was highest in 47,8307µg/g) of the larger stations is 3. The value of the index metal pollution (MPI) Coastal Waters of Sei Nagalawan Village is 11,56 is classified in the category of high. Key Words : Heavy Metals, Pollution, North Sumatra, Meretrix meretrix 
ANALYSIS OF METAL CONTENT OF Pb, Cu AND Zn IN WATER AND SEDIMEN FROM COASTAL KUNDUR ISLAND KARIMUN REGENCY OF ,RIAU ARCHIPELAGO PROVINCE Nababan, Sumiati Friesledi; Nurrachmi, Irvina; Nedi, Syahril
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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ABSTRACT                The reseach was conducted on water and sediment in Kundur Island water to find out metal of Pb,Cu and Zn. The research used purposive method with determination of research areas. The sample was taken on March 2018 and analysis on April 2018 inMarine Chemical Laboratory, Faculty of Fisheries and Marine, University of Riau. The results showed that the metal of Pb in water ranged from 0,2996 – 0,4685 mg/l. The content of Cu 0,2997 – 0,8424 mg/l and Zn 0,5428 – 0,9355 mg/l. The metal of Pb in the sediment ranged from 15.5383 - 22.8933 μg/g. Cu 3,5117 - 7,4750 μg/g and Zn 47,4067 – 77,0167 μg/g. Keywords: Metal content of Pb, Cu, and Zn, Water and Sediment, Kundur Island
CONCENTRATIONS OF Cr, Cu AND Zn IN THE SHELLFISH CLAM (Meretrix meretrix) FROM THE COASTAL WATERS SEI NAGALAWAN SERDANG BEDAGAI REGENCY NORTH SUMATRA PROVINCE Aritonang, Desy Novela; Amin, Bintal; Nedi, Syahril
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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ABSTRACTThis research was conducted on February 2018 by taking samples of M.meretrixin the coastal waters of Sei Nagalawan, Serdang Bedagai Regency in North Sumatra Province. This research aims to know the heavy metal content of Cr, Cu, and Zn on shellfish M. meretrixwith different size, to evaluate the difference between the stations, and relationship between the content of heavy metals with the size of the mussels, as well as to analyze the feasibility of the consumption of shellfish M. meretrix. The highest content of Cr (10,787 µg/g) wasfound in the small size in the station 1. The highest content of Cu (2,240 µg/g) was found in the medium-size at Stations 3. The highest Zn content (70,493 µg/g)was found in the medium-size at Stations 2. The value of Metal Pollution Index (MPI) for SeiNagalawancoastal waters is classified in the category of 9.03. The safe limit the consumption of shellfish M. meretrixbased on the value of the PTWI illustrates that mussels originating from the coastal waters of SeiNagalawan still eligible for consumption, as long as it doesn't exceed the limits of safe consumption are already determined. Key Words : Heavy Metals, Pollution, North Sumatra, Meretrix meretrix
Isolasi Bakteri Pendegradasi Minyak Dari Perairan Sekitar Pelabuhan Bengkalis Provinsi Riau Andhini, Nadia; Nursyirwani, Nursyirwani; Nedi, Syahril
Jurnal Perikanan dan Kelautan Vol 23, No 1 (2018)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.23.1.15-20

Abstract

Oil degradation bacteria can be found in various habitats in the marine environment including in the waters around the harbor. This study aims to isolate the oil degrading bacteria from waters around the port of Bengkalis and test its ability to degrade crude oil. Isolation of the degrading bacteria has been done from February to April 2017 at the Marine Microbiology Laboratory, Department of Marine Science, Faculty of Fish-eries and Marine University of Riau. The amount of oil degrading bacteria ranges from 0.2 x 105 to 8.9 x 105 CFU/ml. The isolation result was obtained by 10 isolates of oil degradation bacteria, ie BM1a, BM1b, BM1c, BM1d, BM7a, BM7b, BM7c, BM7d, BM14a and BM14b. Identification based on morphological, physiological and bio-chemical characteristics of each isolate, all isolates were round and elevated, six were white in color, three were yellow, one cream-colored isolate, eight isolates with slip-pery edges and two isolates with periphery waves, seven isolates were indol positive, two isolates produced H2S, four isolates were methyl red positive, all isolates were motile, capable of fermentation of glucose and sucrose in sugar test, able to ferment citrate, positive catalase and Gram negative bacteria. For degradation test only five bacterial isolates were selected of BM1a, BM1b, BM1c, BM7a and BM7d. The highest degradation at 1% concentration was indicated by isolate BM1a, the highest degrada-tion at 2% and 3% concentrations was indicated by BM1c isolate. Therefor, bacteria isolate capable of degrading the highest crude oil was BM1c.
STAKESHOLDER YANG BERPERAN DALAM PENGENDALIAN PENCEMARAN MINYAK DI SELAT RUPAT Nedi, Syahril
Jurnal Perikanan dan Kelautan Vol 17, No 01 (2012)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.17.01.%p

Abstract

Industri pengolahan minyak, transportasi kapal di pelabuhan serta inputminyak dari muara sungai menyebabkan perairan Selat Rupat rawan terhadappencemaran minyak. Pada dasarnya, pencemaran minyak di perairan lautdisebabkan oleh aktivitas berbagai stakeholder meliputi pelaku industri danpelaku transportasi kapal. Metode ISM (interpretive structural modelling)digunakan untuk penentukan stakesholder yang dominan dalam pengendalianpencemaran minyak dalam upaya mencegah terjadinya kerusakan ekosistem diSelat Rupat. Pemerintah merupakan stakeholder kunci yang mampumengendalikan pencemaran minyak di perairan Selat Rupat dengan mengeluarkaninstrumen regulasi (peraturan perundang-undangan) dalam penyelamatanlingkungan. Pemerintah juga memiliki driver-power yang besar dalam membina,mengawasi dan memberikan sanksi yang tegas (pidana dan denda) terhadapstakeholders lain yang melanggar.
Co-Authors Abdullah ' Afrizal Tanjung Al Usman Andhini, Nadia Andika Lazuardi Andika Sitohang Annisa Presti Parbo Anthony Hamzah Aqil Fikar Rivai Aras Mulyadi Aras Mulyadi Aras Mulyadi Aritonang, Desy Novela Azhara Diana Azizul Fauzan Bambang Pramudya Barnes Silitonga Besri Nasrul Bintal Amin Brilliant Esye Lousiana Cyndy Abmi Damai S Harefa Denny B Hutagaol, Denny B Dessy Yoswaty Dewita Buchari Dewita Dewita Dianti Farhana Kamasela Edy T S Sihombing Efriyeldi, Efriyeldi Elizal, Elizal ESTY KURNIAWATI Etty Riani F, Feliatra Fajri Ramayori Febri Wando Situmorang Fuad, M Anwar Herlin Margaretha Situmorang Indah Puspita Ningrum irvina Nurachmi Irvina Nurrachmi Irwan Effendi Ishlahul Fikri Islamiati, Bening Juliper Parasian Sirait Jumahat Siregar, Jumahat Lita Sari Manik, Yolanda Manuwoto Manuwoto May Sarah Silitonga Mayang Shintana, Mayang Michael Prawira, Michael Misael Gurning Muhammad Aditya Pradana Muhammad Amien Musanif Effendi Musrifin Ghalib Nababan, Sumiati Friesledi Nisa Tria Fatma Nur Aisyah Lubis Nursit Wijayanto Nursyirwani, Nursyirwani Octavia Lorensa Br Sinaga Pasaribu, Ridwan Saiful Basri Paul Rozeki Sinaga Phivi Andriza Phivi Andriza Rahmad Hidayat Rahmi Delima Putri Rasmiati, Eva Resfianto Resfianto Rica Purnama Sari Ridowan Kolif Ridwan Manda Putra Ridwan Manda Putra Rifardi ' Rifardi Rifardi Rinol Putra Utama Rio Aprialis Safitra Riska Khaironisa Riska Khaironisa Ronaldy Saputra Simamora, Ronaldy Saputra Rozalina Rukiana Safira Mutia Sakinah Rachmadani Rambe Sania Bariddah Sarah Puspita Semangat Riski Hasibuan Sihaloho, Elpon Simanjuntak, Benny Ly Sofyan Husein Siregar Sri Ramadhani Suardi ' Sukendi Sukendi Sumiati Friesledi Nababan Suriyanto Suriyanto Syafruddin Nasution Syukri Fajar Tengku Rahma Lopi Theresia Tampubolon Tomi Suhendra Wage Pranowo Yenisustri Ani Yolanda Manik Yoli Yandra Yulina Sari Yunus, Budi Andri Yusni Ikhwan Yusni Ikhwan Siregar Zulkifli ' Zulkifli Zulkifli