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All Journal Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Kajian Lingkungan Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan Asian Journal of Aquatic Sciences Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Dinamika Lingkungan Indonesia Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) EcoNews Jurnal Perikanan dan Kelautan Tropical Marine Environmental Sciences Jurnal Natur Indonesia

Sofyan Husein Siregar

Universitas Riau

Author-ID : 381975

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Faktor-faktor Yang Mempengaruhi Keberadaan Jentik Aedes aegypti Terhadap Kejadian Demam Berdarah dengue (DBD) di Kecamatan Payung Sekaki Kota Pekanbaru Betty Nia Rulen; Sofyan Husein Siregar; Elda Nazriati
Dinamika Lingkungan Indonesia Vol 4, No 1 (2017)
Publisher : Universitas Riau

The existence of larva an indicator of the spread of Dengue Hemorrhagic Fever (DHF) in a place that is measured with Density Figure of Larvae (DF). The increase in the number of dengue cases supported by the low of DF is influenced by several factors such as the physical environment, the behavior of governance of water reservoirs and population density. DF of Larvae in District Payung Sekaki in 2015 by 70%, which is still far below the national standard that is above 95%. This allows opportunities incidence of dengue and dengue virus transmission in these districts will remain high in the next year, especially in the five-year cycle of dengue. This study aimed to analyze the effect of directly and indirectly between the physical environment (rainfall, temperature, humidity, type of container and the presence of the container), the behavior of governance of water reservoirs and population density of the existence of larva, and analyze the effect of the presence of larvae of Aedes aegypti to incidence of dengue. Research conducted in April-December 2016 and located in four villages in Payung Sekaki District Pekanbaru City. Based on the research results, partially variables that affect the existence of larva is the presence of container with a direct influence positively of 10,843 times, the indirect effect 2,054 times and the total effect of 12,897 times, while the natural behavior governance of water reservoirs negatively have direct effects for 26,142 times, the indirect influence of 3,189 times and 29,331 times the total effect of the existence of Aedes aegypti larvae. Results showed no effect on the incidence of dengue larva presence in District Payung Sekaki with a P value (sig.) 0.278 (>α 0.05) but in spatial analysis there is an influence between the existence of larvae on the incidence of Dengue Hemorrhagic Fever.

Analisis Faktor yang Mempengaruhi Jumlah Bakteri Escherichia coli pada Sumur Gali Penderita Diare di Kelurahan Sidomulyo Barat Kota Pekanbaru Muchlis Muchlis; Thamrin Thamrin; Sofyan Husein Siregar
Dinamika Lingkungan Indonesia Vol 4, No 1 (2017)
Publisher : Universitas Riau

Raw water is water used for daily activities, which the quality has satisfied the health requirements and are consumable quality after being cooked (Permenkes No. 416 / Menkes / Per / IX / 1990). E. coli belong to a group of bacteria that are used as indicator of faecal contamination and cause human health problems like diarrhea. The purpose of this research is to determine factors that influence the amount of E. coli in the dug well. This research was conducted in West Sidomulyo village, Pekanbaru on April until October 2016. A quantitative research approach was used and cross sectional design study, by collecting 30 samples and using saturated sampling. Data that has been used in this research is primary data, which used three different survey mediums interviews, observation, and measurement of MPN raw water. The analysis of statistical test used chi-square with a significant level 5%. The results from this research from 30 respondents is 16 samples (53.3%) has groundwater indicated the presence of E. coli. Factors that has statistical significance on the number of E. coli is the distance of septictank with dug well (p value 0.003) and the physical condition of the dug well (p value 0.014). Another factors that statistically not associated with is the distance between the toilet with dug well (p value 1.000) and water-resistant depth (p value 1.000). Recomendations from this study are communities could do some water restoration by improving the lips and floor of raw water sources to water resistant. Community Health Centre of Sidomulyo required taking regular measurements of E. coli and providing counselling to the community about the septictank qualified. Nevertheless, the next researcher need to conduct research by including variables permeability and soil porosity.

Analisis Status Mutu Air Sungai Berdasarkan Metode STORET Sebagai Pengendalian Kualitas Lingkungan (Studi Kasus: Dua Aliran Sungai di Kecamatan Tembilahan Hulu, Kabupaten Indragiri Hilir, Riau) Masykur HZ; Bintal Amin; Jasril Jasril; Sofyan Husein Siregar
Dinamika Lingkungan Indonesia Vol 5, No 2 (2018)
Publisher : Universitas Riau

District of Tembilahan Hulu is the capital of Indragiri Hilir Regency which has two rivers, namely the Sungai Parit 11 and Sungai Parit 13. These rivers has a tidal type with the estuary on the Indragiri River. The function of these rivers is used as a rain water drainage that existence is not be separated from human activities around the watershed. Characteristics of rivers that cross urban areas are susceptible to decreasing water quality and environmental pollution from the effects of high anthropogenic activities. This study aims to analyze the status of water quality in two rivers that cross district of Tembilahan Hulu, Indragiri Regency. Sungai Parit 11 as the research area has a length of ±5 km and Sungai Parit 13 has a length of ±6 km, each of which is divided into 3 locations of sampling points representing the condition of tides and low tides. The placement of each sampling point is determined based on the representation of the upstream, middle and downstream of the river. Analysis of water quality status of the rivers is made using STORET method which comprehensive by Decree of the Minister of Environment of the Republic of Indonesia Number 115 Year 2003. The results showed the status of water quality of Sungai Parit 11 and Sungai Parit 13 in District of Tembilahan Hulu, Indragiri Hilir regency in heavily polluted conditions.

Survival and Growth of Pangasianodon hypopthalmus Fed with Moringa oleifera Enriched Pellets and Reared in Tank With Aquaponic System and Dark Condition Windarti Windarti; Sofyan Husein Siregar; Asmika Harnalin Simarmata; Joko Samiaji
Jurnal Natur Indonesia Vol 21, No 1 (2023): April 2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.21.1.1-6

Pangasianodon hypophthalmus grows well in a dark tank completed with an aquaponic system. To improve the growth, a feed supplement made from Moringa oleifera might be used as it is rich in protein, vitamins A, B, C, and minerals. To understand the effect of M.oleifera addition in the feed of fish, research has been conducted in June-July 2022. M. oleifera leaves were dried and powdered and then mixed with commercial fish feed pellets. There were 4 treatments of M. oleifera dosages, namely T0 (no M. oleifera), T1 (10 g/kg), T2 (15 g/kg), and T3 (20 g/kg). The fish was reared in a 100L container (30 fishes/tank, around 4 g BW and 8 cm TL), covered with a dark-colored tarp, and completed with the aquaponic system using Ipomoea aquatica. The feed was given 2 times/day, ad libitum. Samplings were conducted once/10 days, for 40 days. Results showed that the survival of fish in all treatments was 93.3 – 98.89%. The growth of fish, however, was different. There was no difference in fish body weight (BW), total length (TL), and specific growth rate (SGR) of fish fed with Moringa, they were around 23.5 g BW, 5.8 cm TL, and 4.3 cm SGR respectively. While those of the control fish were 13.0 g BW, 4.23 cm TL, and 2.89% per day SGR respectively. The fish that was fed with Moringa-enriched pellets showed the highest Feed Efficiency (90.42-97.46%) and the lowest FCR (1.03 – 1.11). While in the fish that was not fed with Moringa showed the lowest FE (75.48%) and the highest FCR (1.33%). Data obtained indicate that Moringa positively improves the growth of fish as well as improving feed efficiency

ANALISIS KANDUNGAN LOGAM TIMBAL (Pb) DAN CADMIUM (Cd) PADA TANAH PERKEBUNAN DAN TANAMAN JAMBU BIJI (Psidium Guajava) DI DESA PERAWANG BARAT KABUPATEN SIAK Ardiansyah Hamid; Sofyan Husein Siregar; Sofia Anita
EcoNews Vol 3 No 2 (2020): EcoNews
Publisher : Program Studi Ilmu Lingkungan, Program Pascasarjana Universitas Riau

Perawang Barat village is a village that produces guava. This can be seen from the number of guava plantations found along the Jalan Perawang Barat Village. The guava plant looks lush with large, dense fruit. To get good quality fruit, it is necessary to maximize virginity, such as fertilizing and spraying pesticides. For fertilization, manure and chemical fertilizers are used. Manure comes from chicken manure and chemical fertilizers consisting of KCL, ZA and TSP, while as many as nine types of pesticides are used for pesticides with different functions. Fertilizers and pesticides are sources of Pb and Cd metals. Continuous use of fertilizers and pesticides in the long term results in the accumulation of Pb and Cd metals in the soil. The metal content of Pb and Cd in the soil of 7.71 ppm and 0.37 ppm resulted in the contaminated category of plantation soil. For the distribution of Pb metal in guava plants, the highest Pb content was found in the leaves followed by the stems and roots. The high content of Pb metal in leaves can be caused by many factors, among others, Pb metal comes from the soil which is transferred by roots, the use of pesticides and airborne particulates from motor vehicle fumes.

Strategi Pengelolaan Pasar Modern Berbasis Lingkungan Di Pasir Pengaraian Sutami Sutami; Sofyan Husein Siregar; Trisla Warningsih
Jurnal Zona Vol 7, No 1 (2023)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/zona.v7i1.80

Pasir Pengaraian Modern Market is a traditional market, said to be modern because one of the market visions is the realization of a traditional market with modern nuances that are clean, orderly, beautiful, safe, comfortable, and superior facilities in the economic movement of the Pasir Pengaraian community. The current state of the Modern Market has management conditions that tend to be less considered in the environmental, social and economic fields. The purpose of this study is to analyze the environmental conditions in the Pasir Pengaraian Modern Market, identify potentials and obstacles in the management of the Pasir Pengaraian Modern Market, and formulate a management strategy for the Modern Market in Pasir Pengaraian. This research uses a survey method, which is a method that aims to collect data from a number of variables in a community group through direct interviews and guided by the questions that have been provided. Using primary and secondary data types and sources, data collection techniques with observation techniques and in-depth interviews with informants. Determination of informants using purpose sampling techniques, including market managers as many as 7 respondents, traders as many as 40 respondents and buyers as many as 43 respondents. The strategy preparation analysis in this study uses a SWOT analysis approach. The results showed that the Modern Market is in quadrant I by applying an aggressive strategy. Quadrant I is a very favorable situation where the Pasir Pengaraian Modern Market has strengths and opportunities that can be utilized continuously to develop and improve the management of the Pasir Pengaraian Modern Market.

Epizoic Diatom Community Structure in Snails Cerithidea obtusa and Nerita articulata in the Mangrove Ecosystem, Dumai City, Riau Province Vivien Renata; Sofyan Husein Siregar; Efriyeldi Efriyeldi
Jurnal Perikanan dan Kelautan Vol 28, No 2 (2023): June 2023
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.28.2.238-247

The purpose of this study was to determine the type, abundance, and community structure of epizoic diatoms attached to the shells of the snails Cerithidea obtusa and Nerita articulata in the mangrove ecosystem of Dumai City, Riau Province. This research was conducted in January 2022. A sampling of snail shells took place in the mangrove ecosystem of the city of Dumai, Riau Province, and was identified at the Marine Chemistry Laboratory, Department of Marine Science, Faculty of Fisheries and Marine, Universitas Riau. Based on the research that has been done, the results show that there are 13 genera of epizoic diatoms consisting of 5 genera centrales and 8 genera of pennales order. The highest abundance of epizoic diatoms in C.obtusa snail shells was at station II with a value of 29,687 ind/cm2. While the highest abundance of epizoic diatoms in N.articulata shells was at station I. Based on the average values of diversity index (H'), dominance index (D), and uniformity index (E) it can be concluded that epizoic diatoms in C.obtusa and N.articulata have a moderate biota community balance value, moderate polluted water quality, no dominant species and unbalanced organism uniformity and food competition occurs

Community Structure of the Epipelic Diatom Vertically in the Intertidal Zone, West Dumai City, Riau Province Wiranda Dellarosa; Sofyan Husein Siregar; Irvina Nurrachmi
Jurnal Perikanan dan Kelautan Vol 28, No 2 (2023): June 2023
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.28.2.168-173

The purpose of this study was to determine the community structure of epipelic diatoms vertically between stations. This research was carried out in March 2022 which is located in the waters of the City of West Dumai. The method used is the survey method. Determination of the sampling point is done by purposive sampling method and the determination of the station is based on anthropogenic input. A sampling of epipelic diatoms was carried out using a modified corer, then brought to the laboratory to identify and calculate the community structure, and the sediment samples were calculated for the content of nitrate, phosphate, organic matter, and sediment fractions. Sampling is accompanied by measurements of water quality consisting of brightness, temperature, current velocity, salinity and pH. 21 genera of epipelic diatoms were found in the waters of West Dumai City with an abundance value of 9,784 – 32,739 ind/cm2. The average value of the diversity index obtained was 2.6460 – 3.2065, the dominance index was 0.1478 – 0.2423, and the uniformity index was 0.7952 – 0.8424. The results of the one-way ANOVA test obtained an average value of 0.001, meaning that there was a significant difference in the abundance of epipelic diatoms between stations

Diversity and Abundance of Epiphytic Diatoms on Seagrass Leaves (Enhalus acoroides) in Poncan Gadang Island Sibolga City, North Sumatra Dinda Trie K Hayati; Sofyan Husein Siregar; Rifardi Rifardi
Jurnal Natur Indonesia Vol 21, No 2 (2023): October
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.21.2.149-155

The seagrass ecosystem is one of the marine ecosystems that has an important role, namely as a source of life for organisms in the sea. Diatoms are microalgae widely distributed throughout the aquatic environment and are even found in plants, including seagrass leaves. Diatoms greatly influence life in the waters because they play an essential role as a food source for various marine organisms and play a role in the transfer of carbon, nitrogen, and phosphate. This research was conducted in February 2023 on Poncan Gadang Island, Sibolga City, North Sumatra. The study aims to determine the density, relative abundance, abundance, and diversity of epiphytic diatom species on seagrass (Enhalus acoroides) leaves in Poncan Gadang Island. The method used is the survey method, using three stations to take samples. The determination of 3 stations is based on the density of the seagrass beds ecosystem. Sampling of diatoms was carried out by brushing the surface of seagrass leaves about 5x2 cm on the front and back of the leaves. The samples obtained were then analyzed in the laboratory. There were 12 types of diatoms found, consisting of Cocconeis sp., Rhizosolenia sp., Biddulphia sp., Amphipluera sp., Thalassiotrix sp., Nitzchia sp., Synedra sp., Melosira sp., Pleurogosigma sp., Skeletonema sp., Licmiphora sp., and Thalassionema sp. the average value of epiphytic diatom abundance in seagrass leaves ranged from 2160.85 – 4649.94 ind/cm². The epiphytic diatom diversity (H') values ranged from 2.53 to 2.72

Plankton Community Structure in Kasiak Island Waters Pariaman City, West Sumatra Province Febbyolla, Selfi Anidal; Siregar, Sofyan Husein; Nurrachmi, Irvina
Jurnal Perikanan dan Kelautan Vol 29, No 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.60-69

This study was conducted in September 2022 in Kasiak Island Water, Pariaman City, West Sumatra Province. This study aimed to analyze the community structure of phytoplankton and zooplankton and the relationship between the abundance of phytoplankton and zooplankton in the waters of Kasiak Island. The method used is the survey method. Plankton sampling was carried out at four stations with three sampling points. Plankton samples were obtained by filtering 100 L of surface water to 125 mL and then analyzed in the laboratory. The results obtained were 21 species of phytoplankton and 11 species of zooplankton. The average abundance of phytoplankton in the morning ranged from 923.15–2400.19 ind/L, and during the day ranged from 1200.09–2,492.50 ind/L. The average abundance of zooplankton in the waters of Kasiak Island in the morning went from 369,26–1,200.09 ind/L and, during the day, ranged from 369,26–1,384.72 ind/L. Phytoplankton biological indicators such as the diversity index (H') in the morning ranged from 0.6096–2.3075 and during the day ranged from1.3894–2.0129, the uniformity index (E) in the morning ranged from 0.4844–0.9851 and during the day ranged from 0.9060–0.9624, and the dominance index (D) in the morning ranged from 0.2181–0.6617 and during the day ranged from 0.2833–0.4248. While zooplankton biological indicators such as the diversity index (H') in the morning ranged from 0.2704–0.8617 and during the day ranged from 0.3333–1.1950, the uniformity index (E) in the morning ranged from 0.2704–0.6667 and during the day ranged from 0.3333–0.6667, and the dominance index (D) in the morning ranged from0.6111–0.8750 and during the day ranged from 0.5278–0.8333.The relationship between the abundance of phytoplankton and zooplankton in the morning and during the day is a moderate (positive). The regression equation in the morning isY = 0.1356x + 434.53and during the day it isY = 0.1845x + 362.01

Co-Authors ', Thamrin ', Zulkifli AA Sudharmawan, AA Achmad Mulyadi Adam Dionfriski Ade Riccard Simatupang Adriana, Alysa Adrizal, Taufik Afrizal Tanjung Albahri Albahri Alvin Natali Andi Darlianto Anisaldi Anisaldi Anita, Sofia Antoni Antoni Aras Mulyadi Ardhi Yusuf Ardian Dwi Pratama Ardiansyah Hamid Arief Mubyarso Aslim Rasyad Asmika Harnalin Simarmata Bahri S, Aswan Bahtiar Denny Edison Belilasari Belilasari Belilasari, Belilasari Beranda, Ongki Okto Bintal Amin Bornok Silalahi Chairun Nisa Chitra Hermawan Chitra Hermawan Dalimunthe, Salmi Patima Dellarosa, Wiranda Deni Efizon Desmarina, Y. Despela, Despela Dessy Yoswati Dessy Yoswaty Devid Joehari Dewi Marni Dinda Trie K Hayati Dinda Trie K Hayati Dionfriski, Adam Dodik Ridho Nurrochmat Dudi Candra Eddy Handoko Edmond Edwar Efriyeldi, Efriyeldi Elda Nazriati Elizal, Elizal Endah Julita Eva Desy Yulina Siregar, Eva Desy Yulina Fainal Asandi Fairuzia, Putri Marwah Farid Febrianda Fathiya Hanifa Fauzan, M. Febbyolla, Selfi Anidal Febrianda, Farid Fery, Rony andes Gendraya Rohaini Ginting, T.B. Hamid, Ardiansyah Hanif, Naufal Happy Rosalina Hapsoh Hapsoh Hapzi Ali Henny Daniaty I Gusti Wayan Murjana Yasa Imam Suprayogi Ira Putra, Ira Irvina Nurachmi Jamhari Jamhari Jasril Jasril Joenathan Sarumpaet Joko Samiaji Josua Simanjuntak, Josua Lazuardi, Andika Lucky Rahman Lydia S Marpaung M. Hambali M. Hambali Manda Putra, Ridwan Marpauang, EkoRinaldi Masykur HZ Masykur Hz Megawati Hari Dwi Jayanti Mery Mery Mia Audina Mia Audina, Mia Miduk Tampubolon Mila Rosa Miswadi Miswadi Mubarak Mubarak Mubarak Mubarak Muchlis Muchlis Muchlis Muchlis Mudinillah, Adam Mufidah, Marhamah Nurul Muhammad Saroha Lubis Muhammad, Andi Syahroni Mumin Rifai Musrifin Galib Nickson Panjaitan Nila Sari Lubis Nizar Rofiki Nova Esterlita Novi Permata Sari Noviawati Riza Nugraha, Rafiq Prima Nur Arifin Nur Arifin, Nur Nurhapida Nurhapida Nurliya ' Octavia Lorensa Br Sinaga Prasiska, Yulia Puspita, Sarah Putri Wahyuni Rahmita, R. Ramadhan, A.R Rasoel Hamidy Renata, Vivien Ridwan Manda Putra Rifardi Rinaldo, Rinaldo Rinaldo, Rinaldo Rini, Yulia Sapta Riski Hambali Risqiana Dani Riza Yuliani Rizka Aprisanti Rizka Aprisanti Rizki, A. Rosa, Mila Rulen, Betty Nia Rusadi, M Dio Eigmar S.Pd. M Kes I Ketut Sudiana . Said Nazman Arif Samsir Samsir Sari, D.J. Selfi Anidal Febbyolla Selvia, Seli Shofian Nanda Adiprayoga Silaban, Santi Maria Sinaga, Octavia Lorensa Br Sirait, Juliper Parasian Sitindoan, Benni Mario K. Sofia Anita Sujianto Sujianto Sujianto Sukendi Sukendi Susiyanti. N Sutami Sutami Sutrisna Sutrisna suwondo suwondo Syafruddin Nasution Syafrudin Nasution Syahril Nedi Taufik Herman Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Trinop Sagiarti TRINOP SAGIARTI, TRINOP Trisla Warningsih Vivien Renata Wahyudi Wahyudi Wahyuni, Weni Indah Windarti Windarti Wiranda Dellarosa Yanasari, Nurry Yanti, D.H. Yosua Afrianus P Yudha Januarizki Setiawan Yulia Prasiska Yuliani, Riza Yusni Ikhwan Siregar Zahtamal Zahtamal Zientika, Zientika Zukarnaini Zukarnaini Zulfan Saam Zulkifli ' Zulkifli Zulkifli

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