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T Iskandar Johan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Environmental Science Immunology & microbiology

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DAMPAK PENAMBANGAN EMAS TERHADAP KUALITAS AIR SUNGAI SINGINGI DI KABUPATEN KUANTAN SINGINGI PROVINSI RIAU T Iskandar Johan; Ediwarman Ediwarman
Jurnal Ilmu Lingkungan Vol 5, No 2 (2011): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.5.2.p.168-183

Abstract

This study was conducted in March until August 2008. The research site is the Singingi riverwaters Petai rural areas (upstream) to the village of Tanjung pauh (downstream) subSingingi Downstream, Kuantan Singingi District, Riau Province. Metode used in this study isa survey method. The analysis in this study is done by using descriptive analysis.Implementation of the analysis performed on Singingi river waters that includes physical andchemical parameters such as temperature, brightness, turbidity, current speed, water depth,TSS, O2, pH, CO2, BOD5, COD, Nitrate and Phosphate. The results showed that goldmining can make Singingi river waters are at a fairly alarming rate in a state that has beencontaminated between the categories of mild contaminated with heavy contamination. It canbe seen from the results of laboratory analysis of physical and chemical parameters of thelevel of pollution has passed the threshold value (MAB) in accordance with the PP. 82 In2001, about Managing water quality and water pollution control such as brightnessparameter (9.0 to 19.0 cm.), Turbidity (139.40 to 199.27 NTU), TSS (86.33 to 115.96 mg / l).,BOD5 (14 to 16.6 mg / l) and COD (138.91 - 143.31 mg / l) has exceeded the qualitystandards of water quality
KAJIAN PENJAJAKAN DESA BINAAN: RANTAU BINUANG SAKTI Ediwarman Ediwarman; T Iskandar Johan; Saipul Bahri; Ujang Paman Ismail; Mukhtar Ahmad
DINAMIKA PERTANIAN Vol. 30 No. 1 (2015): Jurnal Dinamika Pertanian Edisi April 2015
Publisher : UIR Press

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Abstract

In order to make a decision on the possibility to determine Rantau Binuang Sakti to be an established village of the Islamic University of Riau, a reconnaissance study have conducted as a field study in the mid-January 2015. As an origin of traditional village, which has been famous since in the mid 16th century, but the village are closed and isolated due to bad infrastructure conditions and seemingly rural development program has not yet been in touch to the village, by regency as well as by other upper government institution. The natural resources as a part of the Rokan river wetland area, it well support of the important of fishery to Rokan Hulu Regency, so that recently it will be one of the fishing recreation tourism come from various cities such as Pekanbaru and Duri. Base on the main scientific priority and the persistent of Islamic University of Riau’s expertise on the rural and community development, so that Rantau Binuang Sakti is feasible then as a rural reconstruction of the Islamic University of Riau by means to strengthen the fishery and its resources, develop creative economy embedded with spiritual and eco-tourism as well as possible to be a potential production center for horticultural fruit for the region (inhabitant) consumption.
PEMBERIAN PUPUK BOKASHI DENGAN DOSIS BERBEDA PADA MEDIA AIR LIMBAH RUMAH TANGGA TERHADAP PERKEMBANGAN POPULASI Moina sp Candra Muhasdika; Rosyadi Rosyadi; T Iskandar Johan
DINAMIKA PERTANIAN Vol. 30 No. 1 (2015): Jurnal Dinamika Pertanian Edisi April 2015
Publisher : UIR Press

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Abstract

The objective of tis esearch was to know the bokashi fertilizer use with different dosages od household waste water media on population development of Moina sp. The research was conducted at the fish breeding centre of Faculty of Agricuoture Riau Islamic University Pekanbaru from April to May 2014. The materials used were Moina sp, cow dung, and rice bran and containers used topless, household waste water. The completely randomized design was used with four treatments, namely P0 (without bokashi), P1 (dosage of 0.5 g/l), P2 (dosage of 1 g/l), and P3 (dosage of 1.5 g/l) and three replecation. The result showed that the highest population was found on the treatment with dosage of 1 g/l and occurred on 8th day with population numbers of 13,440 ind/l. The lowest population was found on the treatment of bokashi fertilizer use with peak population occurred on 6th day with population number of 4,260 ind/l. Based on varian analysis, the using of bokashi fertilizer with different dosage of household waste water madya for population development of Moina sp was found a sifnificant difference (99%). The water quality of madia culture during research such as temperature (26 – 280 C), pH (6.0 – 7.0),DO (5.25 – 6.00 ppm), and NH3 (0.19 – 1.85 ppm with water quality is still feasible for supporting survive and propogation of Moina sp.
PENGARUH GLISEROL PADA MEDIA TRYPTIC SOY BROTH (TSB) TERHADAP VIABILITAS BAKTERI Aeromonas hydrophila Jarod Setiaji; T Iskandar Johan; Meliya Widantari
DINAMIKA PERTANIAN Vol. 30 No. 1 (2015): Jurnal Dinamika Pertanian Edisi April 2015
Publisher : UIR Press

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Abstract

The effect of glycerol at the TSB media on Aeromonas hydrophila bacteria viability was studied. The purpose of this study was to obtain the best glyserol concentration in TSB as storage media for Aeromonas hydrophila bacteria. The completely randomized design with one factor was used for four treatments and three replications, i.e., TSB media added glycerol 10%, 15%, 20% and 25%. The stage of this research included media preparation, preliminary test, glycerol preparation, inoculation on kryotube, and test bacteria inspection. The test results showed the highest bacteria growth capacity was found on bacteria stored in TSB that was added with glycerol under concentration of 15%, namely 5.77 x 107 CFU/ml and the lowest one in TSB that was added gluserol 25%, experiencing total death on 56th day. The largest percentage of bacteria viability during storage was obtained on 15% glycerol increment, accounting for 0.01015%, and the lowest one was found on 115% glyserol increment, namely 0%. The aeromonas hydrophila bacteria storage with using glycerol concentration for 10%, 15%, 20% and 25% on temperature -20o C during 56 days did not cause to be occured mutation and change the bacteria charactristics. Percentage of suitable bacteria on mother T (0) was 100%.
PENGARUH PEMBERIAN HORMON TIROKSIN (T4) DENGAN PERENDAMAN TERHADAP PERTUMBUHAN DAN TINGKAT KELULUSHIDUPAN BENIH IKAN GURAMI (Osphronemus gouramy Lac) Oki Kurniawan; T Iskandar Johan; Jarod Setiaji
DINAMIKA PERTANIAN Vol. 29 No. 1 (2014): Jurnal Dinamika Pertanian Edisi April 2014
Publisher : UIR Press

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Abstract

The objective of this research was to examine the effect of giving tyroxin hormone (T4) with soaking on growth and survival of gouramy seed (O. gouramy Lac). The research was conducted at the Hatchery Faculty of Agriculture Riau Islamic University Pekanbaru from October to November 2009. Method used was experiment. Treatment consisted of P1 (without tyroxin hormone), P2 (0.3 mg/3 l water), P3 (0.9 mg/3 l water) and P4 (1.5 mg/3 l water). The resuts showed that the highest absolute growth weight was found on P4 of about 1.11 g, the highest absolute growth lenght on P4 of about 0.93 cm, and the highest daily speed growth on P4 of about 2.9%. The survival rate was found to be 100% for the whole treatments. The variation analysis was obtained that the use of tyroxin hormone with different dosages had no significant effect on growth rate of weight and lenght for gouramy seed.
UJI LARUTAN MENIRAN (Phyllanthus niruri L) UNTUK PENGOBATAN IKAN LELE DUMBO (Clarias gariepinus) YANG TERINFEKSI BAKTERI Edwardsiellatarda Jarod Setiaji; T Iskandar Johan; Agus Pramujiono
DINAMIKA PERTANIAN Vol. 28 No. 2 (2013): Jurnal Dinamika Pertanian volume XXVIII, Nomor 2 2013
Publisher : UIR Press

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Abstract

Meniran (PhyllanthusniruriL) solution test for the treatment measures of Clariasgariepinus which was infected by bacteria Edwardsiellatarda was conducted. The purpose of this study was to find the effective concentration of the solution meniran for prevention of red spot disease (edwardseliosis) that infect catfish. The completely randomized design with 4 treatments and 3 replications was used. The treatment was worked by soaking in a solution with meniran concentrations of 3,000 ppm, 5,000 ppm, 7,000 ppm and without being given meniran solution as a control. The average of meniran solution inhibition against bacteria at concentration of 50,000 ppm of 14.3 mm, concentration of 25,000 ppm of 12 mm, concentration of 10,000 ppm of 8.7 mm and concentration of 5,000 ppm of 6 mm. Meniran L D50 concentration test of 40,000 and 60,000 on the 24-hour immersion caused death by 10%. The highest survival rate was found at a concentration of 7,000 ppm as 86.67%.
PENGARUH HORMON TIROKSIN (T4) TERHADAP KELULUSHIDUPAN DAN PERTUMBUHAN BENIH IKAN JAMBAL SIAM (Pangasius hypophthalmus) Jarod Setiaji; T Iskandar Johan
DINAMIKA PERTANIAN Vol. 27 No. 3 (2012): Jurnal Dinamika Pertanian Volume XXVII, Nomor 3 2012
Publisher : UIR Press

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Abstract

This study aimed to investigate the effect of the hormone thyroxine (T4) on the survival and growth of fish seed jambal conjoined. The method used was experiment with completely randomized design with one factor and four treatments. The observed parameters were the absolute weight growth of fish seed jambal, the total length growth, the growth rate of daily weight percentage, and survial rate. The treatment consisted of P1 (without the hormone thyroxine), P2 (soaking with hormone thyroxine at a dose 0.2 mg / 2 liter), P3 (soaking with hormone thyroxine at a dose of 0.6 mg / 2 liter), P4 (soaking with hormone thyroxine at a dose of 1.0 mg / 2 liter). The observation results showed that the best dosage was found on soaking treatment with hormone thyroxine 1.0 mg/2 liter. On that treatment, the growth of the absolute weight of jambal siam fish seed reached 7.04 g, the absolute length growth of 3.07 cm, the growth rate of daily weight percentage of 15.91% and survival rate of 100%.
Co-Authors Agus Pramujiono Candra Muhasdika Ediwarman Ediwarman Jarod Setiaji Meliya Widantari Mukhtar Ahmad Oki Kurniawan Rosyadi Rosyadi Saipul Bahri Ujang Paman Ismail