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Analysis of Oil Content, Plankton and Macrozoobenthos Communities Structure in Liung River Waters Bengkalis Regency Antoni Antoni; Aras Mulyadi; Sofyan Husein Siregar
Jurnal Ilmu Lingkungan Vol 11, No 1 (2017): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.11.1.p.86-97

Abstract

This research was conducted in November 2015 until February 2016 located at Liung River waters Bantan District Bengkalis Riau Province with the aim to analyze the oil content in water and aquatic sediments, the structure of the plankton community and macrozoobenthos. The survey method was applied in this research with four research stations as sampling point. Samples were analyzed in the Laboratory of Ecology and Environmental Management of Water and Food Chemistry Laboratory of the Faculty of Fisheries and Marine Sciences of the Riau University. The results showed that the oil content in water ranged from 0.225 to 0.325 ppm and in sediments ranged from 447.67 to 582.33 ppm. The high oil in the sediment is possible because the oil accumulates in the sediments that are affected by the current state. The abundance of plankton ranged from 1200 to 4266.67 cells/L and found 18 genera with index of diversity index (H') 2.5022 to 2.9477, dominance index (C) 0.1481 to 0.2524 and index of uniformity (E) 0.7533 to 0.9299. Similarly, the abundance of macrozoobenthos ranged from 55 to 82.33 Ind/m2 and found 10 genera with diversity index (H') 0.9169 to 2.2489, dominance index (C) 0.2231 to 0.5565 and index of uniformity (E) 0.9169 to 1. The regression analysis between oil content in coloum water with plankton abundance shows negative correlation (Y = 5811.383 – 10167.685X; R2 = 0.353; r = 0.594) and oil content in sediment with macrozoobenthos abundance also show negative correlation (Y = 120.923 – 932.202X; R2 = 0.511; r = 0.715).
EFFECT OF PARTICLE SIZES AND CONTENT OF ORGANIC MATTER SEDIMENT ON EPIPELIC DIATOM ABUNDANCE IN BAYUR BAY WATERS OF WEST SUMATERA Benni; sofyan Husein Siregar; irvina Nurachmi
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.3.1.49-59

Abstract

The aim of this study is to determine the water quality, the particle size (mm) and the organic matter content sediment, the type and abundance of epipelic diatoms, and the effect of particle size and organic matter content of the sediment on the abundance of epipelic diatoms at Bayur Bay Waters. This study was conducted in June - July 2019. The survey method was applied in this study and sampling location determine by purposive sampling. The resullt of measurement of water quality parameter ranged salinity 29 ‰ - 34 ‰, pH 7-8, current speed of 0,10 m/s – 0,53 m/s, temperature 30,330C - 31,670C. The sediment types are grouped into four types, namely gravel, sandy gravel, gravelly sand, and sand. The average of particle size (Mz) ranged -1,37 Ø - 0,80 Ø. The organic matter on sediment ranged 2,46% -6,36%. Eleven species of epipelic diatoms was recorded namely Amphora sp, Cocconeis sp, Diploineis sp, Halamphora sp, Melosira sp, Navicula sp, Nitzschia sp, Pinnularia sp, Stephanodiscus sp, Isthmia sp and Synedra sp. The average value of abundance range 2.836 – 10.812 ind/cm2. Epipelik diatom abundance was not significantly different between the stations. The effect of sediment particle size on the abundance of epipelic diatoms by 34,37%. The effect of content of organic matter sediment on abundance of epipelic diatoms in Bayur Bay Waters by 51,78%.
POTENTIAL AREA ESTIMATION OF FISHING GROUND BASED ON THERMAL FRONT AND UPWELLING IN WEST SUMATERA WATERS IN EAST SEASON Ahmad Vikri; Sofyan Husein Siregar; Mubarak
Asian Journal of Aquatic Sciences Vol 3 No 3 (2020): Desember 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.3.3.217-224

Abstract

This research was conducted in August to November 2019. It aims to determine the potential fishing ground based on thermal front and upwelling in the waters of West Sumatra. The survey method was applied in this research. The results showed that the distribution of thermal front and upwelling in the waters of West Sumatra experienced a change that was not too significant. Based on the results of sea surface temperature verification on the Aqua MODIS image with the temperature in the field obtained temperature differences of around ± 10C. The catch during the research shows that catches in the thermal front area can be used as a potential fishing ground because the catch in the thermal front area is more than the area outside the thermal front
TOTAL OIL CONTENT AND EPIPHYTIC DIATOM DENSITY IN SEAGRASSES LEAVES Enhalus acoroides AT PANDARATAN BEACH TAPANULI TENGAH REGENCY NORTH SUMATERA PROVINCE Sarah Puspita; Sofyan Husein Siregar; Syahril Nedi
Asian Journal of Aquatic Sciences Vol 4 No 1 (2021): April 2021
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.4.1.21-28

Abstract

The aimed of this study was to determine the total oil content at Pandaratan Beach, determine epiphytic diatoms density in seagrass leaves Enhalus acoroides at Pandaratan Beach, and determined the relationship between total oil content and epiphytic diatoms density in seagrass leaves E. acoroides at Pandaratan Beach. Based on the results of research conducted, the highest total oil content is in the area around the sea transportation route, namely 0.25 ppm and the lowest total oil content is in areas far from human activity, namely 0.16 ppm. The highest epiphytic diatoms density found in areas far from human activities, namely 932.21 Ind/cm2 and the lowest epiphytic diatoms density found in the area around the sea transportation lines, namely 663.41 Ind/cm2.The relationship between total oil content and epiphytic diatoms density at Pandaratan Beach, Tapanuli Tengah Regency, North Sumatra Province has a very weak relationship (r = 0.03).
EFFECT OF DIFFERENT TYPES OF FERTILIZER ON THE GROWTH OF MARINE PHYTOPLANKTON POPULATION Chlorella vulgaris M. Fauzan; Sofyan Husein Siregar; Syafruddin Nasution
Asian Journal of Aquatic Sciences Vol 4 No 1 (2021): April 2021
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.4.1.65-72

Abstract

This research was conducted on October 13-26, 2019 in the Regional Technical Implementation Unit of the Seawater and Brackish Aquaculture Fisheries Office (UPTD BPBALP Teluk Buo), West Sumatra. This study aims to determine the effect of applying different types of fertilizers to the growth of Chlorella vulgaris microalgae populations on laboratory scale culture. The method used in this study was an experimental method in the laboratory using a completely randomized design (CRD) one factor, namely the difference in fertilizer types with 3 (three) replications. Fertilizers used are Walne fertilizer, ZA (Zwavelzure Ammoniak) and TSP (Triple Super Phosphate). The testing organism in this study was phytoplankton C. vulgaris. The container used was a glass jar (3 liter capacity). The parameters measured in this study include absolute growth, relative growth, specific growth, self-doubling time and water quality. The results of this study indicate that the best type of fertilizer for C.vulgaris population growth was TSP fertilizer, followed by ZA fertilizer and the lowest in Walne fertilizer.
PENINGKATAN PENGETAHUAN DAN KETERAMPILAN KELOMPOK KONSERVASI LASKAR MANDIRI DALAM PEMBIBITAN DAN PENANAMAN BIBIT MANGROVE DI DESA KAYU ARA PERMAI KAB. SIAK Efriyeldi Efriyeldi; Aras Mulyadi; Joko Samiaji; Sofyan Husein Siregar; Elizal; A.R. Ramadhan; A. Rizki; D.H. Yanti; Despala; D.J. Sari; R. Rahmita; T.B. Ginting; Wahyudi; Y Desmerina; Zientika
Journal of Rural and Urban Community Empowerment Vol. 2 No. 1 (2020)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1071.782 KB) | DOI: 10.31258/jruce.2.1.15-23

Abstract

Mangrove forest is one of the coastal ecosystems that has many roles, but is currently experiencing a lot of damage. Efforts to improve conditions have been made through replanting. This activity requires mangrove seeds. The purpose of this community service is to increase the knowledge and skills of the community, especially members of the Laskar Mandiri conservation group in seeding and planting mangrove seeds for the needs of rehabilitating damaged mangrove forests in Kayu Ara Permai Village, Sungai Apit District. The methods used in carrying out this community service activity are lectures, questions and answers, demonstrations and practices about all series of nurseries and planting mangrove seedlings by directly involving all the service teams including UNRI's Kukerta students in 2020. To find out the participants' understanding of the material presented, this was done. evaluation by asking participants to fill out a questionnaire before and after the activity was carried out. The data obtained were analyzed descriptively. The results of this outreach activity indicated that the participants followed seriously listening to the material presented by the extension team from start to finish. The results of the evaluation showed that 75% of participants prior to the counseling knew that the role of mangrove forests had increased to 100%, before extension there were still around 10% of participants who did not know the characteristics of seeds or ripe fruit, which became 100% after counseling. Before the activity, only 80% of the participants knew that it was necessary to choose fruit that was free from pests to be 100%. Before the training there were about 30% of participants who did not know the impact if the seedlings broke their roots during planting, so 95% knew about the impact. Previously, there were still participants who did not know (10%) of the impact of planting during the big waves to become 100 aware. All participants (100%) at the end of the service activity admitted that the service was useful because there were still important things that we did not understand.
DISTRIBUSI PENCEMARAN DI PERAIRAN MUARA SUNGAI RIAU, KOTA TANJUNGPINANG, KEPULAUAN RIAU Aras Mulyadi; Sofyan Husein Siregar; Irvina Nurachmi
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.103-113

Abstract

Tanjungpinang city has developed so rapidly. This development is feared will give badimpact to the quality of the waters of Riau River Estuary because it deals directly with thevarious activities which taking place in the Tanjungpinang city. This research was carriedout by the method of survey in August 2011; aims to determine the potential and thedistribution of environmental pollution in the waters of Riau River Estuary. Identification ofpollution potential is sourced from marine (marine based) such as fisheries, ship traffic andmooring boats; and from land (land based) mainly urban waste, residential, hotel andrestaurant, tourism, agriculture, industry and mining. The majority of water quality ismeasured has exceeded the quality standard limit of waters Kepmen LH RI. 51/2004 inAppendix III (for marine biota life).
STRATEGI PENGELOLAAN KAWASAN PERMUKIMAN PESISIR KOTA SELATPANJANG Risqiana Dani; Zulfan Saam; Sofyan Husein Siregar
Jurnal Ilmu Lingkungan Vol 7, No 2 (2013): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.7.2.p.212-222

Abstract

Coastal settlement region with all the uniqueness of nature, beauty and appeal is an idealarea for development of settlement activity. The fact that the population growth rate is highwill result in changes to the existing ecosystem. Environmental conditions of coastalSelatpanjang city not arranged properly, moreover high level of poverty is one of reason thedecent settlement have not been fulfilled. The purpose of this study is to identify thecharacteristics of the coastal settlement Selatpanjang city, analyzed the usefulness of physicalsettlement as a living space, to support social, cultural and economic activities and todetermine the management strategies of coastal settlement Selatpanjang city. This study isusing the method of survey research and to transform quantitative data into qualitative datause a Likert scale. The result of this study found that the characteristics of the coastalsettlements of Selatpanjang city is dominated by the use of land up the majority of populationis used as a settlement, settlement condition is largely a non-permanent settlements and semi-permanent, and not the presence of coastal buildings yet. Physical conditions compatibilitylevel of the settlement as a living space with a residential component of legality, buildingstructure, the living space per occupant, water supply, availability of bathroom facilities,trash heap services and the electricity grid was found that the condition of occupancy “LessUnder” as a living space, the next level of concordance as a means of supporting social,cultural and economic activities of coastal communities Selatpanjang city with assessmentcomponent of health, education, religious duties, government and public services, open area,trade and services obtained results “Less Under”, so it is necessary to repair or provision ofthe settlement. Strategic management of the coastal settlement Selatpanjang city to do withthe control of land use, increased as a function of residential living space, improving thequality of neighborhoods as well as the improvement of housing facilities and infrastructure.
ANALISIS KELIMPAHAN DINOFLAGELLATA EPIBENTIK PADA Sargassum sp DI PERAIRAN TELUK BUNGUS PROVINSI SUMATERA BARAT Putri Wahyuni; Thamrin Thamrin; Sofyan Husein Siregar
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.58-66

Abstract

Epibentik Dinoflagellates can be epiphytic (associated with seagrasses or macroalgae). This study used a survey method with Sargassum sp as a Dinoflagellata attachment. Research on the abundance of Dinoflagellata was conducted in Bungus Buy in November 2014. Based on samples collected, nine Dinoflagellates were found, where five of them were potentially toxic. They were Chatonella, Gonyaulax, Ceratium, Dinophysis, Prorocentrum, Gambierdiscus, Ceratium, Alexandrium, Pyrodinium and Scrippsiella with an abundance of 5231-12177 cell/g. The results showed no relationship between the concentration of nitrate and phosphate on the abundance Dinoflagellates. The nitrate concentrations ranging from 0.0175 to 0.0312 mg / l and phosphate concentrations ranging from 0.0181 to 0.0354 mg / l.
ANALISIS POTENSI AIR TERJUN TUJUH TINGKAT BATANG KOBAN LUBUK AMBACANG SEBAGAI DAERAH EKOWISATA Anisaldi Anisaldi; Yusni Ikhwan Siregar; Sofyan Husein Siregar
Jurnal Ilmu Lingkungan Vol 8, No 1 (2014): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.8.1.p.12-17

Abstract

Tourism Area ot Tingkat Tujuh waterfall Batang Koban is located in the village ofLubuk Ambacang sub district of Hulu Kuantan Regency of Kuantan Singingi. TourismArea of Tingkat Tujuh waterfall Batang Koban is a natural tourism destination assetwith huge potential to be developed in the midst of the construction and development ofthe region, and should be given attention optimally and sustainably toprovide benefitsof local communities, to improve the welfare of nature and the surroundingsenvironment. In the development and management of Tingkat Tujuh waterfall BatangKoban Lubuk Ambacang must be able to balance the various aspects of the interplayamong social, economic and environmental. Besides having a diversity of flora andfauna tourism area of Tingkat Tujuh waterfall Batang Koban has a uniquenessecosystem, unspoiled natural phenomena and socio-economic culture of localcommunities, which can be used as a potential in the development of ecotourism in theregion. The method used in this research is a survey method. The research wasconducted on April – May 2010. Location was determined by purposive sampling onthe grounds that this region will become the area of featured natural tourism inKuantan Singingi regency. Departing from the interests of sustainable ecotourismdevelopment, the issue that needs to be studies is, 1) Identify biophysical potential andsocio-cultural communities of tourism area to be developed into an ecotourism region2) Provide policy recommendations on the development of ecotourism in the touristareas. The results showed that Tingkat Tujuh waterfall Batang Koban LubukAmbacang has potential to be developed as ecotourism area. The advantages contain inthe Tingkat Tujuh waterfall Batang Koban Lubuk Ambacang such as uniqueness andmagnificence as well as the different charms of each level. Diversity of flora and faunadue to lie on the Bukit Barisan mountains, the originality scenery of the forest, and thewaterway with some natural charm and myths-myths that can be used as a tourismattraction. The aspects of ecotourism development techniques that can be conducted isthe appointment of the person or institution that served as a regional manager with theknowledge, skills and debriefing in waterfalls ecotourism, repair and improvement offacilities an tourism programs.