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PERTUMBUHAN BAKTERI HETEROTOFIK PADA AIR LAUT TERCEMAR DETERJEN IRWAN EFFENDI; HERI SYAHFITRI; DESSY YOSWATY
Jurnal Ilmiah Pertanian Vol. 2 No. 1 (2005): Jurnal Ilmiah Pertanian
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/jip.v2i1.1370

Abstract

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GROWTH OF HETEROTROPHIC BACTERIA IN SEA WATER POLLUTED BY SURF DETERGENT Dewan Pratama Novian; Irwan Effendi; Feliatra Feliatra
Asian Journal of Aquatic Sciences Vol 1 No 1 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (476.136 KB) | DOI: 10.31258/ajoas.1.1.29-34

Abstract

The research was conducted from February 2016 to April 2017, aimed to determine the effect of adding different concentrations of detergent namely SURF on the growth of bacterial populations in the seawater column. This research used experimental method with Completely Randomized Design. Seawater samples were analyzed at Marine Microbiology Laboratory, Fisheries and Marine Faculty of Riau University. Based on the results of the study, from day 0 untill day 10 after given detergent with different concentrations, bacteria experienced a decreasing trend of growth, in day 15 untill day 20, the trend of bacterial growth contaminated by detergent with different concentration relatively increased to stagnant. Based on the result of this study the addition of different detergent concentration in each treatment affect the growth of heterotrophic bacteria population in the sea water, where the higher concentration of detergent added the lower the ability of bacteria to grow and the ability of heterotrophic bacteria to survive at different concentrations of detergent, it can be concluded that the ability of heterotrophic bacteria to grow from days 0 to 20 has decreased in each of its concentrations.
GROWTH OF HETEROTROPHIC BACTERIA IN SEA WATER POLLUTED BY RINSO DETERGENT Cahyani Fitrah Tanjung; Irwan Effendi; Elizal elizal
Asian Journal of Aquatic Sciences Vol 1 No 1 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.282 KB) | DOI: 10.31258/ajoas.1.1.58-65

Abstract

This research was conducted in March-April 2017 at Marine Microbiology Laboratory, Faculty of Fisheries and Marine University of Riau. The purpose of this study is to determine the different concentration of detergent (0 ml/L, 1.5 ml/L, 3 ml/L, 4.5 ml/L, 6 ml/L) in different observation time (0, 5, 10, 15, 20) on the growth of heterotrophic bacteria in sea water. Completely randomized design was used in this experimental method. The results showed that bacterial growth of all treated samples decreased on the 5th day of incubation. However, the population began to increase on the 10th day of incubation. The count of maximum bacterial growth was 1.46 x 109 found in the 4.5 ml/L treated detergent, and the lowest growth was 3.73 x 107 in the 1.5 ml/L treated detergent. Statistical analysis (ANOVA) showed that the concentrations in different observation times on the growth of heterotrophic bacteria showed significant effect and the value was (P <0.005).
EFFECTIVITY OF NIPAH (Nypa fruticans) EXTRACT ON (Aedes aegypti) LARVAE IN BRACKISH WATER Rady Rady; Irwan Effendi; Feliatra Feliatra
Asian Journal of Aquatic Sciences Vol 2 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (462.174 KB) | DOI: 10.31258/ajoas.2.2.107-118

Abstract

The most commonly used method of vektor control is temephos (the synthetic larvicide). Currently in some areas there has been resistance of aedes aegypti larvae to temephos, so that natural larvicide is required as an alternative. Nypa exctract contains flavonoid compounds that are respiratory toxins that can kill aedes aegypty larvae.This research was conducted in January - February 2019. The purpose of this study was to determine the inhibitory power of nipah extract against larvae in brackhish water. The results of this study are expected to increase knowledge and provide information about the pontential of nipah as a soursce of bioactive compounds. The method used is the experimental method, where the location of the research sampel was obtained at one sampling location point in the Sungai Kayu Ara village, Siak Riau province. The results showed that the average mortality of larvae in nipah laeves in the 60th minute was 55, 80, 100 and 100%. While root extracts have larvae deaths as many as 60 minutes, namely 100, 90, 90, and 100%. For the average mortality of larvae at the root of nipah there are 60 minutes, which are 95, 100, 100 and 100%. As wel as positive and negative controls as a comparison. So it can be compared to 3 administration of nipah extract both leaves, roots and midrib so that the three conncentrations used are better than the use of midrib extract compared to leaf and root extract. It can be concluded that the more concentration used the higher the mortality of larvae is the concentration of 12%. For the concentration used the percentage of larvae mortality in the test media is as much as 6%, 9% and 12%. Every death of larvae has reristance to different bodies so that at the 30th minute there is a difference in mortality of larvae wich a given concentration. The larvae species used are aedes aegyti larvae. The highest mortality of dead es was found in midrib extract and also positive controls. So that the death of larvae is very effective against the given solution has the same ability. The mortality of A. aegypti larvae were then analyzed using probit analysis to obtain LC50 (Lethal Concentration 50) and LT50 (Lethal Time 50) values. The results of the probit analysis of leaf, root and midrib extracts are the estimation of LC50 1.493, 2.618, 0.005. while leaf , root and midrib extracts at the LT50 estimate were 2.841, 1.579, 2.227
EFFECTIVITY OF EXTRACT LEAF, FRUIT, ROOT MANGROVE Avecennia marina ON Aedes aegypti Eti Eriani; Irwan Effendi; Dessy Yoswaty
Asian Journal of Aquatic Sciences Vol 2 No 3 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.332 KB) | DOI: 10.31258/ajoas.2.3.206-213

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Inhibiting the life of the Aedes aegypti mosquito is the mian way that is done to eradicate DBF, which is popularly done by chemically synthetic insecticides can be used air pollution and poisoning of humans so it needs safer natural incecticides such as compounds derived from mangrove plants. Mangrove Avecennia marina contains saponis, flavonoids, and alkaloids can act as stomach poisons resulting in larval death. The study was conducted in Februari-Maret 2019. The purpose of the study was to deteremine the efectiveness of extracts of leaves, fruit Avecennia marina mangrove root that quickly inhibit the growth of Aedes aegypyi larvae. The method used was the experimental method, the location of the research sample taking in Kayu Ara Village, Siak Riau Province. Results showed the mangrove leaves at a concentration of 12% mosquito larvae deaths reached 99 tails in the 120th minute, results showed the mangrove fruit at a concentration of 12% mosquito larvae deaths reached 96 tails in the 120th minute, Results showed the mangrove root at a concentration of 12% mosquito larvae deaths reached 85 tails in the 120th minute, analyzed using probit analysis to obtain LC50 (Lethal Concentration 50) and LT50 (Lethal Time 50) values. The LC50 probit analysis velue is estimate leaves 2.721, estimate fruit 1.584 dan estimate root 1,232. Whereas at LT50 estimate leaves 2.841, fruit 1.579, root 1.115.
Spirulina platensis GROWTH IN POLLUTED DOMESTIC WASTE WATER MEDIUM AND ITS UTILIZATION AS A RAW MATERIAL FOR BIOGAS PRODUCTION Rugun Sinaga; Irwan Effendi; Mubarak Mubarak; Hanies Ambarsari
Asian Journal of Aquatic Sciences Vol 3 No 1 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.3.1.38-48

Abstract

This research was conducted in April - June 2019, located at the Center for Environmental Technology Laboratory (PTL) - Agency for the Assessment and Application of Technology (BPPT), Building 820 Geostech, Puspitek Serpong, South Tangerang. The purpose of this study was to determine the biogas production from S. platensis microalgae grown in polluted domestic waste media from Muara Angke waters with different concentrations. The method used in this study is an experimental method with a Completely Randomized Design (CRD) with 3 different treatments of S. platensis concentrations consisting of 5% v/v, 15% v/v and 25% v/v performed three repetitions with the addition cow manure substrate and control without the addition of cow manure substrate. The parameters observed were physical parameters, chemical parameters, biomass calculations and biogas volume measurements. Data were analyzed and tested statistically using Analysis Of Variance (ANOVA) and further tested using the LSD test to compare between treatments with a 95% confidence level. Biogas is energy that can be used as an alternative fuel to replace fossil fuels such as petroleum and natural gas. The results showed that S. platensis with the addition of cow dung could produce more biogas volume (4453.6 cm) than S. platensis without the addition of cow dung (697.19 cm). Biogas volume is measured using the gas holder method.
THE EFFECT OF DIFFERENT FEED ON THE GROWTH RATE OF Artemia salina Kristanti; Irwan Effendi; afrizal Tanjung
Asian Journal of Aquatic Sciences Vol 3 No 1 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.3.1.77-83

Abstract

Artemia salina is a natural feed that is widely used in fish and shrimp hatcheries due to its good nutritional content. This research was conducted in August 2019. This study aims to determine the effect of different types of feed on the growth rate of A. salina on a laboratory scale. The method used in this study was an experimental method that uses a completely randomized design (CRD) 1 factor with 3 levels namely, cornstarch (A), wheat (B) and tapioca (C). Water parameters show that the conditions was in good condition with average temperatures ranging from 28.1 - 28.7 oC, pH 8 and with a salinity of 60 ppt. Body length of A. salina ranged from 5.33 - 82.33 mm, where the body length in level A (cornstarch) was 82.33, level B (wheat) was 54.33, level C (tapioca) was 18, 67 and the control level is 5.33. The results of the ANOVA test for body length increase of A. salina showed p<0.05, that is 0.00. The survival rate of A. salina with different feed ranges from 0.5% - 88.50%, where the survival rate in level A (cornstarch) is 88.50%, level B (wheat) is 3.17%, level C (tapioca) is worth 51.50% and Control level is worth 0.5%. Survival rate in level A (cornstarch) is quite good. Based on ANOVA test, the survival rate between levels showed p<0.05, that is 0.00.
Identification of Antibiotic-Producing Bacteria from Extreme Microhabitat in Molecular Mangrove Ecosystems and Their Activity on Pathogenic Bacteria (Vibrio alginolyticus) Desy Mutia Sari; Irwan Effendi; Nursyirwani Nursyirwani
Jurnal Perikanan dan Kelautan Vol 9, No 2 (2019)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v9i2.8628

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The presence of antibiotic-producing bacteria from microhabitat in mangrove ecosystems can be useful to produce new antibiotics for industrial and environmental conservation. Mangrove ecosystems in Dumai have the potential to possess antibiotic-producing bacteria that have not been much studied. The objective of this research was to obtain antibiotic-producing bacteria from extreme microhabitats in the mangrove ecosystem in suppressing the growth of pathogenic bacterial pathogens (Vibrio alginolyticus). Samples were taken from several microhabitat mangrove areas in Dumai (Kelurahan Purnama Dumai), Riau Province. The survey method is used for identification, antibacterial test against pathogenic bacteria (V. alginolyticus). Bacterial isolation was carried out using the pour plate method and purification was carried out using the quadrant streak method. Identification is carried out through observations of macroscopic, microscopic morphology, biochemical tests, antagonism tests (agar diffusion method on agar nutrient media) and DNA analysis. Sequencing of 16S rDNA from the best antibiotic-producing bacterial isolates indicated that molecularly identified of Bacillus amyloliquefaciens, Bacillus cereus, Enterobacter hormaechei, Klebsiella pneumonia, and Enterococcus gallinarum. All bacteria were able to inhibit the growth of V. alginolyticus
Pembinaan Kelompok Ibu Rumah Tangga Di Kampung Minas Barat Kabupaten Siak Provinsi Riau Irwan Effendi; Afrizal Tanjung; Syahril Nedi; syafruddin Nasution; Elizal Elizal
Journal of Rural and Urban Community Empowerment Vol. 1 No. 1 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (902.816 KB) | DOI: 10.31258/jruce.1.1.15-23

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Housewives have their own potential for economic development and improvement of family nutrition. African catfish is a fish that has a savory taste and has become part of the Riau community menu. On the other hand, these fish are relatively easy to cultivate, resistant to extreme environments even in narrow areas without the need for running water. This community service activities is aimed at fostering housewives to grow African catfish in drums, make their own catfish feed and process some of their harvest. The program was held in West Minas Village, Siak Regency, Riau Province by using direct demonstration method. The participants were taught how to make fish feed, cultivation of catfish and post-harvest activities. Starting from the formation of the group and the appointment of the chairman and secretary. Followed by face-to-face counseling activities, direct practice of making fish feed, preparation of growing containers, stocking the fish fry and cultivation implementation. Every participant provided with a 200 l drum, 300 fries and some catfish feed that they produce themselves. One unit of pellet making machine was handed over to this group. Monitoring activities carried out continuously every 2-3 weeks, either through direct visits or via telephone. The participants looked serious, enthusiastic and diligent in carrying out this program. Until the end of the fish activities have been harvested and consumed by family members themselves. Viewed from the perspective of strengthening the family economy and improving household nutrition, this activity is considered quite good and is expected to be emulated by other community members.
Pelatihan Pembuatan Bakso dan Nuget Ikan Bagi Ibu Rumah Tangga Kampung Minas Barat Kabupaten Siak Irwan Effendi; Rita Wijaya
Journal of Rural and Urban Community Empowerment Vol. 1 No. 1 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.396 KB) | DOI: 10.31258/jruce.1.1.61-66

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Lack of interest in eating Indonesian children fish, resulting in protein nutrition sufferers and growth inhibition. Housewives are their own potential for economic development and family nutrition. Some people may not like to consume catfish. Maybe because of its fishy smell, its shape is scary for children, disgusting for some people who don't like to eat fish. But by being made into meatballs and nuggets people will be more interested and interested in consuming them. This activity empowers group members and supports the family economy through mentoring and counseling on technology for making meatballs and fish nuggets. The participants were taught how to make fish balls and fish nuggets. The first strategy is to teach fishermen mothers to join the community service program, which is they will be formed into a target group of 20 people and appoint one of them as the group leader. After the group is formed, counseling will be conducted on the benefits of fish in the health sector and as a basic ingredient in the manufacture of various types of processed foods that are nutritionally and economically valuable.