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THE USE OF MICROALGAE Chlorella vulgaris FOR REDUCTION OF POLLUTANT LEVELS IN SEA WATER OF MUARA ANGKE POLLUTED BY DOMESTIC WASTE Risma Tambunan; Aras Mulyadi; Dessy Yoswaty
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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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), Geostech Building 820, Serpong Archipelago Puspitek, South Tangerang. The purpose of this study was to determine the growth of C. vulgaris microalgae cultured in Muara Angke seawater polluted by domestic waste and to analyze its ability to reduce pollutant levels based on chemical parameters from Muara Angke seawater polluted by domestic waste. The experimental design used was a Completely Randomized Design (CRD) with 3 treatments of different C. vulgaris concentrations consisting of 5% v / v, 15% v / v, and 25% v / v performed three times repetition and given control that was without the addition of C. vulgaris and observed physical parameters (Temperature) and chemical parameters (DO, pH, COD, Phosphate, Nitrate, and Ammonia). Data were analyzed statistically using Analysis Of Variance (ANOVA) and further tested using the LSD test to compare between treatments with a 95% confidence level. The results showed that algae C. vulgaris had the potential to reduce levels of pollutants in sea water polluted by domestic waste, and the best treatment in reducing levels of pollutants in sea water polluted by domestic waste was treatment C (25%) with the decrease in COD value of 75.76% , Phosphate at 80.72%, Nitrate at 91.76% and Ammonia at 76.17% so that the levels of pollutants in the media used are in accordance with quality standards for their designation.   Keyword: Chlorela vulgaris, domestic waste, COD, Phosphate, Nitrate, Ammonia
PENGARUH PENGGUNAAN ALAT PELINDUNG MATA TERHADAP KETAJAMAN PENGLIHATAN PEKERJA LAS DI KECAMATAN MANDAU, BENGKALIS RIAU Widia Astin; Aras Mulyadi; Suyanto Suyanto
Jurnal Ilmu Lingkungan Vol 10, No 1 (2016): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.10.1.p.67-77

Abstract

One negative impact for electric welders in the form of exposure radiation generated in the welding process that will result in visual acuity disturbances welders.This study was an observational study with cross sectional design is examined at the same independent variables, dependent variables and independent variables at the same time. The purpose of this study to know the effect of time on radiation for electric welders, types of eye protection used, consistency (compliance worker) in the use of eye protection equipment, working time and the influence of age on visual acuity in welding workers in in Kecamatan Mandau Kabupaten Bengkalis Riau with a total sample of 32 electric welders.Collecting data to see the sharpness of vision(visual acuity) was performed using a Snellen Optotype and questionnaires. The results showed that disturb ances in visual acuity (vision) in welders influenced by the time display (p-value = 0.001) and the consistency of the use of eye protection equipment by workers when performing welding (p-value = 0.001). There is no relationship or influence the type of eye protection equipment (p-value = 0.437) were used, age (p-value = 0.142) and working time (p-value = 0.669) on the occurrence of disturb ances in visual acuity welders in Kecamatan Mandau Kabupaten Bengkalis Riau. Owners of business are expected have high commitment to implementation of occupational health and safety regulation, follow the rule of Indonesian Labour Department in the application of working hours, minimize the radiation for welder and provide training about welding standards.
Struktur Komunitas Makrozoobentos di Daerah Padang Lamun Muara Sungai Riau Kota Tanjungpinang Provinsi Kepulauan Riau Ilham Ilahi; Aras Mulyadi; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in June 2013 at Riau River Estuary inTanjungpinang City Riau Islands Province. This research aimed to find out themacrozoobenthos community structure and its relationship to seagrass vegetation.The method on the research was survey method. The existence of macrozoobenthosin this area showed the dynamic symbiosis among seagrass and marine organisms.The results also showed seagrass ecosystem had the high potential to be managed andused by communities and also increasing the fisheries productivity on coastal area.Species composition of macrozoobenthos in the area consisted of 8 species, i.e.Strombus sp, Cerithidea quadrata, Pina bicolor, Anadara sp, Anadara inflata,Atactodea striata, Asteroidea sp and Diadema sitosum. Two species of seagrassvegetation were found in this area, those were Enhalus acoroides, and Halophilaovalis. T-test analysis showed that the average of macrozoobenthos abundance oneach station differed unsignificantly (p>0,05). The regression analysis showed thatrelationship among seagrass vegetation diversity and macrozoobenthos abundancewas at r=0,35.Keywords: Riau River, Macrozoobenthos, Seagrass, Symbiont
STRUCTURE COMMUNITY OF MANGROVE IN THE VILLAGE A PANTAI CERMIN KIRI DISTRICTS PANTAI CERMIN REGENCY OF SERDANG BEDAGAI THE PROVINCE OF NORTH SUMATRA Andreas Situmorang; Aras Mulyadi; Efriyeldi '
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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Study was conducted in february 2017. This report aims to understand structure community of mangrove in the village Pantai Cermin kiri in the Pantai Cermin North Sumatra. Methods used in research is method of surveying. The research station based on human activity. In every station divided into 3 transects with long transects 50 m lead from the sea to land. The number of a plot used by 27, with each size 10 x 10 m2 to tree level, 5 x 5 m m2 to the saplings, and 2 x 2m2 to level seedling. The result of this research found 7 mangrove species in the village Pantai Cermin kiri. Vegetation that dominated is Rhizophora apiculata with INP of 300 %. A condition of vegetation in the village Pantai Cermin Kiri in the shore Pantai Cermin mangrove are forest area is still in good with the density of of 2377,78 tree / ha.Kata Kunci: Village Pantai Cermin Kiri, Structure Community, mangrove.
Analysis of Demersal Fish Schooling Distribution in Tarakan Waters North Borneo by Using Hidroacoustic Method Susilawati '; Aras Mulyadi; Mubarak '
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 research is aimed to determine the distribution of demersal fish schooling and the relation between demersal fish schooling and temperature, salinity and depth of water by using hydroacoustic method. The research was held in August 2014 at the Research Institute of Marine Fisheries Laboratory of Muara Baru, North Jakarta. This research used hydroacoustic method with acoustic descriptor techniques. The amount of fish schooling was obtained by digitization and integration, the values of integration would have generated the position and depth of the waters. Demersal fish schooling which found in waters of Tarakan were comprising of 19 schooling. The dominant fish schooling occured at temperature of 270 C to 280 C and tended to be appear at salinity of 35.5 ‰. Type of demersal fish schooling in Tarakan waters was mostly emerged in form of horizontal contained in the bottom of ocean.Keywords :Kalimantan, Tarakan, Demersal Fish, Fish Schooling , Hydroacoustic
COMMUNITY STRUCTURE OF MANGROVE VEGETATION IN MENGKAPAN VILLAGE SUNGAI APIT DISTRICT OF SIAK Fia Novianty; Aras Mulyadi; Efriyeldi '
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 January-February 2017 in Mengkapan Village, Sungai Apit, District of Siak. The purpose of study was to determine the structure community of mangrove in Mengkapan Village. The method used in the research was survey method. The stations were determined based on human activity. Each station was determined in three transects set along 100 m from the sea toward the land. The number of plots was 27, with the size of 10 x 10 m2 for tree criteria, 5 x 5m2 for sapling criteria, and 2 x 2m2 for the seedlings criteria. The results of this study found 10 species of mangrove. The vegetation was dominated by species of R. apiculata with value 155.71%. The status of mangrove vegetation in Mengkapan Village, Sungai Apit was in bad condition, with the average density of 607.40 ind/ha.Keywords: Mangrove, Structure community, Village Mengkapan
COMPOSITION TYPE AND ABUNDANCE OF PHYTOPLANKTON IN TELUK BAYUR WATERS PADANG WEST SUMATRA Andi Darlianto; Aras Mulyadi; Sofyan Husein Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT                This research was conducted in March 2018 - April 2018 in Teluk Bayur, Padang Selatan Subdistrict, West Sumatra Province. The purpose of this research is to determine the type composition and abundance of phytoplankton in the waters of Teluk Bayur Padang, West Sumatra. Survey method was used in this research. Water quality measured in this research is temperature, pH, DO, Salinity, Nitrate, Phosphate, and Current speed. Phytoplankton composition in Teluk Bayur waters is composed by 5 class which is  Bacillariophyceae, Dinophyceae, Cynophyceae, Coscinodiscophyeae and Mediophyceae with total 16 species. The highest phytoplankton abundance in Teluk Bayur waters is found in stasiun 1 total 83,3 (ind/l) and the lowest abundance is in station 4 total 69,9 (ind/l). The highest relative abundance of phytoplankton species at station 1 is Leptocylindrus sp as much as 25%, at station 2 the highest is Streptotheca sp as much as 26%, at station 3 is Leptocylindrus sp and Surella sp as much as 16.3% and at station 4 namely Isthimia sp as much as 22.5%. Key word : Water quality, Phytoplankton, Teluk Bayur
ANALYSIS OF BIOMASS AND CARBON STOCK ON MANGROVE FOREST ECOSYTEM IN NORTH COASTAL AREA OF RUPAT ISLAND RIAU PROVINCE Muhammad Sofyan; Aras Mulyadi; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Analysis of biomass and carbon stock on mangrove forest ecosytem in coastal area of North Rupat Riau Province has been conducted in January 2016. The method used in this study is a survey method with purposive sampling technique. The study showed that the potential mangrove biomass was directly proportional to mangrove carbon stocks. The average yield of biomass, carbon stocks of soil organic carbon and CO2 sequestration on mangrove forest was reserves amounted to 68,64 tons/ha , 904,75 tons/ha and 251,39 tons/ha, while the average yield of total carbon stocks was 973,31 tons/ha.Keyword: Rupat, Mangrove, Biomass, Carbon,
The Community Structure Of Mangrove Vegetation In Rindu Laut Of Purnama Village Of Dumai City Nico Rahmadany; Aras Mulyadi; Afrizal Tanjung
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study was done in June 2014 in Rindu Laut coast of Purnama Village of Dumai City. The field sampling was using the method Line Transect Plot. The mangrove in the study area had 6 families with 10 species, i.e. Xylocarpus granatum, Rhizopora apiculata, Bruguiera gymnorrhiza, Bruguiera cylindrica, Ceriops tagal, Lumnitzera littorea, Avicennia marina, Sonneratia alba, Excoecaria agallocha and Nypa fruticans. The mangrove species that dominated in this area was Xylocarpus granatum and Rhizopora apiculata. Based on the diversity, density and water quality parameters indicated the condition of the mangrove in the study area of was at the medium stage. Parameters of the environment enough to support the growth and development of mangrove forests, it can be seen from the condition of aquatic and a substrate muddy bottoms. The calculation of the value of the dominance Index (C) ranged from 0.16 to 0.58, indicating no type of mangrove species dominating the study area.Keywords: mangrove, the structure of the community, diversity, Rindu Laut, Dumai
Pengolahan kelapa jelly dan manisan kelapa di Desa Binaan Tanjung Alai Kecamatan XIII Koto Kampar Provinsi Riau Aras Mulyadi; Dessy Yoswaty; Iesje Lukistyowati; T Ersti Yulika Sari; Niken Ayu Pamukas; Adelina Adelina
Unri Conference Series: Community Engagement Vol 1 (2019): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.1.267-276

Abstract

Tanjung Alai Village is in The XIII District of Koto Kampar Riau Province, downstream of The Gulamo River with The Kampar River. The local government of Kampar Regency has develop tourism potential in Tanjung Alai Village. For example it has traction in the form of beautiful natural scenery, the distance from the city of Pekanbaru to Tanjung Alai Village about 2 hours (21 km), the catchment area, the historical site of the Muara Takus Temple, Puncak Pukatan as a climbing and Pulo Simo waterfall area. Tanjung Alai Village too has potential as rubber, oil palm, gambier, chocolate and coconut plantations. Coconut palm has opportunities with high economic value, utilized by community to diversify coconut processed products and support industrial products food preparations. The purpose of the activity is to make Tanjung Alai Village a target village from LPPM University of Riau by doing coconut jelly and candied coconut processing activities. Benefits of activities that can be used as an alternative effort to improve the welfare of the community and entrepreneurship. The method used is a combination of counseling and the practice of using coconut jelly and candied coconut. Strategic target audience in the activities of the target villages there were 25 PKK mothers. The evaluation results of the participants perception stated that it was very agreeable (59,2%) held this activity, received and practiced the training of coconut jelly and candied coconut as an opportunity for alternative income for the community. Economic analysis of processed coconut jelly amounted to IDR. 4.653.600/month and candied coconut is IDR. 2.248.800/month.