Articles

Model Pengelolaan Perkebunan Kelapa Sawit Berkelanjutan Pada Lahan Gambut di Provinsi Riau Nasrul, Besri; Hamzah, Anthony; Nedi, Syahril
Jurnal Agro Teknologi Tropika Vol 1, No 01 (2012)
Publisher : Jurnal Agro Teknologi Tropika

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A model of sustainable oil palm management in the tropical peatlands in Riau, precise and comprehensive data ofland and social economic farmers are required. The research has conducted in the Riau District four months by usingfield survey on land unit. The lands were had evaluated by maximum limiting factors and the socio-economic werecalculated by Multi-Dimensional Scaling. Oil palm development exist in the peatland affected on: 1) DHL score whichexceeds saturation level of 4 mS, and the highest score in Bengkalis 107,32 mS; 2) Land subsidence > 6 cm year-1especially Rokan Hilir have 18 cm year-1; 3) Change of ground water exceeding value float for oil palm (60 cm), highestvalue there was Siak 30-95 cm; 4) Level continue oil palm plantation in peatlands for the ecology dimension showedindex 47,35% (less have continuation) with ecology factor having an effect: water level, prevention of burning land,usage of amelioran /fertilization, and specific of site technology; 5) For social dimension showed index 55,65% (enoughhave continuation) with social factor having an effect: community empowerment, policy synchronization, solving of sosio-conflict, and weak of law straightening; 6) For economic dimension showed index 68,62% (enough have continuation)with economic factor having an effect: capital structure, price of fruit, and production equipments.
Analisis kandungan minyak pada saat pasang dan Surut di perairan sekitar pelabuhan Gunungsitoli kabupaten nias Harefa, Damai S; Nedi, Syahril; Amin, Bintal
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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This study was carried out in February 2014, with the aim to analyze the oilcontent during high and low tide in the different area in coastal waters aroundGunungsitoli Port of Nias Regency. This study was expected to serve as the initialinformation about the content and distribution of oil in the water and can be used as areference in reviewing the environmental conditions in the waters of GunungsitoliPort of Nias Regency. The results showed that the average oil content was 0.256 ppmat high tide and 0.193 ppm at low tide. The average oil content was not significant bydefferent (p > 0.05) betweel high and low tide. The oil content during high tide basedon the distance from the beach were as follow : 0.281 ppm near the beach, 0.273 ppmin te middle and 0.214 ppm in auter coastal. Meanwhile during the low tide the oilcontent were 0.0234 ppm at the beach, 0.174 ppm in the middle, and 0.172 ppm inthe auter coastal, respectively. Based on the distance from shore oil content showedno significant difference (p > 0.05). Oil content in the port / area was 0.288 ppm, intourist areas / settlement, 0.237 ppm, and in the Depo Pertamina was 0.244 ppm andthey showed no significant diffrence (p > 0.05).Keywords: Oil Content, Tidal, Gunungsitoli Port.
Analysis of Oil Content and Diatom Abundance in Coastal Waters of Medan Kota Belawan North Sumatera Situmorang, Herlin Margaretha; Amin, Bintal; Nedi, Syahril
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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The research was conducted in May 2014 in Medan Kota Belawan coastal waters. The aim of this research was to analyze the oil contents and diatom abundance as well as their correlation during high and low tide. Samples of sea water for oil and diatom analysis were collected from 4 stations. The analysis of oil content as well as identification and quantification of diatom were carried out in Marine Chemistry Laboratory, Faculty of Fisheries and Marine Sciences, University of Riau in Pekanbaru. The results of the study showed that the highest oil content was found during the high tide in Station 1 (0.322 ppm) and the lowest was at Station 4 (0.040 ppm). Diatoms that were found in the surface waters of Medan Kota Belawan coastal water comprising of 18 species. Nitzschia scrianata was the species with the highest abundance (3640.73 cells/l). The diatom abundance was found to be highest during high tide in Station 4 (1213.58 cells/l) and the lowest was during low tide in Station 1 (360.80 cells/l). Oil content with diatom abundance showed a weak negative correlation (Y = 639,7-971,1x ; R2 = 0.146 ; r = 0.382) at high tide while at low tide Y = 520.7-1370.0x ; R2 = 0.115 ; r = 0.339 which mean that increasing oil content will decrease the abundance of diatoms in Medan Kota Belawan coastal waters.Keywords : Belawan Coastal Waters, oil, diatoms and tide
THE CONTENT ANALYSIS OF OIL IN COASTAL WATER AND SEDIMENTS OF SUIR RIVER ESTUARY OF MERANTI ISLANDS Ramayori, Fajri; Nedi, Syahril; Amin, Bintal
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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This study was conducted in July 2014 with the aim to analyze the oil content in the water and sediment in the Suir River Estuary in Meranti Islands. This study was expected to serve as the initial information about the oil content in the water and sediments and as a baseline for future research assesing marine pollution in the waters of the River Suir Estuary in Meranti Islands. The method used was a survey method. The oil content in the water was highest at Station 3 (0,15 ppm) which was located in the outer region of the Suir estuary, and the highest in the sediment was at Station 2 (1473,66 ppm) which was located in the central region of the River Suir Estuary. The lowest oil content in the water and sediments, was forward at Station 1 (0,035 ppm and 818,08 ppm), which is part of the Suir estuary. Oil content in the water did not show real relationship with the oil content in the sediment (Y = 1147 - 1493x), the coefficient of determination R2 = 0,05 and correlation coefficient r = 0,23 indicating a negative relationship. Oil content in water was lower than the value of the quality standards set by State Ministry of the Environmental Affairs (2004), the oil content in the sediment was lower than the threshold value has been determined by the National Academy of Science (2001).Keywords: Oil, Waters, Sediment, Suir, Meranti
The Analysis of Organic Matter In Sediment and Macrozoobenthos Abundance in the Coastal Water of Selat Panjang Strait Meranti Islands Province Riau Silitonga, Barnes; Nedi, Syahril; Siregar, Yusni Ikhwan
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 July 2014 in the waters of Selat Panjang Strait Meranti Islands Riau Province The goal was to analyze the content of organic matter in the sediments and benthic organism. The study was also to observete relationship betwen organic material content of sediments and macrozoobenthic abundance. The sample were collected from 5 points station consist of three sub station. Sampling direct research at low tide with 3 repetitions. The parameters measured in this study were the brightness, water temperature, salinity, current velocity, and pH. The results of this study indicated that the environmental conditions of Selat Panjang Strait still able to support macrozoobenthic life. The macrozoobenthos found were as many as 15 species consisting of 2 Phyla, namely the Molluscs and Oligochaetes. There were two classes in the phylum of Mollusc 6 species of bivalves and gastropods 8 and 1 species of phylum class Oligochaete Tubificinae. The diversity index (H) was low, where the number of individuals was not uniform. The dominance index (C) close to 1 meaning that the community was dominated by a certain type or species. The relationship with the organic matter content in the waters showed weak and positive meaning if the organic material increases the abundance also increased.. Kata Kunci: Macrozoobenthos, Meranti island, Abundance, and Organic matter
THE CONTENT OF HEAVY METALS Pb, Cu, and Zn in ORGAN SYSTEM OF PARANG FISH (Chirocentrus dorab) AND BIANG FISH (Setipinna paxtoni) IN AIR HITAM STRAIT MERANTI ISLAND REGENCY, RIAU PROVINCE Sihombing, Edy T S; Siregar, Yusni Ikhwan; Nedi, Syahril
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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This study was conducted since Juny until July 2014 in the Air Hitam Strait of Meranti Island Regency. The purpose of this study was to determine the content of heavy metals of Pb, Cu, and Zn which accumulated in organ system of Parang fish (C. dorab) and Biang fish (S. paxtoni) as the impact of sewage pollution from all human activies around the Air Hitam strait and to determine the feasibility of Parang fish (C. dorab) and Biang fish (S. paxtoni) consumption in Air Hitam strait. The results of this study showed that in Parang fish (C. dorab) Pb content was higher in the gills (5,78 µg/g), and the other heavy metals were higher too in the gills, i.e. Cu (8,68 µg/g) and Zn (39,21 µg/g) respectively. For Biang fish the heavy metals were higher in the gills, Pb (4,96 µg/g), Cu (10,03 µg/g), and Zn (33,82 µg/g) respectively. Based on heavy metal distribution, the content of Pb, Cu, and Zn in Parang fish (C.dorab) and Biang fish (S. paxtoni) at Station I was not significantly different (sig > 0,05) with Station II. Based on the  calculation, Parang fish (C. dorab) and Biang fish (S. paxtoni) from Air Hitam Strait still suitable for consumption as long as it does not exceed the specified limits.   Keywords: Pb, Cu dan Zn; C. dorab dan S. paxtoni ; Air Hitam Strait
Vertical Distribution of Benthic Foraminifera in Sediments in the Waters of Western Rupat Strait Bengkalis Regency, Riau Province Sari, Rica Purnama; Nedi, Syahril
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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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,
ANTAGONISM TEST OF PROBIOTICS BACTERIA ISOLATED FROM BLACK TIGER SHRIMP (Penaeus monodon) AGAINST PATHOGENS (Aeromonas hydrophila, Pseudomonas sp and Vibrio alginolyticus) Wijayanto, Nursit; Nedi, Syahril
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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AbstractProbiotics is one effective strategy in an effort to cope with the disease by pathogenic bacteria. The study aims to determine the level of pathogenic bacteria were isolated from the candidate probiotic intestinal tiger shrimp against pathogenic bacteria A. hydrophila, Pseudomonas sp and V. alginolyticus. Expected candidate probiotics can be used to combat the disease in fish and shrimp farming. Antagonism using disc diffusion test. Four isolates of candidate probiotic bacteria more dominant round, milky white color and yellow, smooth or scalloped edge. Four candidate probiotic bacteria can inhibit pathogenic bacteria A. hydrophila, Pseudomonas sp and V. alginolyticus. The highest inhibition zone on the candidate probiotics P1 against A. hydrophila, Pseudomonas sp of 11.7 mm and 11.1 mm. The highest inhibition zone on V.alginolyticus the candidate probiotic bacteria P2 of 11.4 mm.Keywords: Probiotics, Tiger Shrimp, antagonists, A. hydrophila, Pseudomonas sp,V. alginolyticus.
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

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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.
ANALISIS FRAKSI SEDIMEN DAN BAHAN ORGANIK DI PERAIRAN MUARA SUNGAI DUMAI PROVINSI RIAU Manik, Yolanda; 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 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.