Article Per Year (5 Year)
p-Index From 2019 - 2024
10.06
P-Index
This Author published in this journals
All Journal Maspari Journal Jurnal Veteriner Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Kajian Lingkungan Jurnal Ilmu Perairan (Aquatic Science) Maspari Journal Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan JURNAL BIOLOGI INDONESIA IJEBA (International Journal of Economic, Business & Applications) JURNAL PHOTON Asian Journal of Aquatic Sciences ECOTONE SIMBIOSA Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment (JRUCE) SEHATI: Jurnal Kesehatan Dinamika Lingkungan Indonesia CANANG: Jurnal Pengabdian Masyarakat EcoNews Jurnal Manusia dan Lingkungan South East Asian Marine Sciences Journal
Yusni Ikhwan Siregar
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary Other

Published : 148 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 148 Documents
Search

 1   2   3   4   5 
Potential Assessment and Development Strategy of Ecotourism In Bokor Village of Meranti Archipelago Regency of Riau Province ', Arfitrah; Mulyadi, Aras; Siregar, Yusni Ikhwan
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study was aimed to: 1) assess the potential and condition of mangrove ecosystems in Bokor Village to be developed into ecotourism destination, 2) knowing the level of community participations and perceptions, 3) knowing the effort and perceptions of stakeholders concerning to development ecotourism in Bokor Village, and 4) developing a strategy for ecotourism in Bokor Village. The methods used in this study were observation, survey and interviews.The results showed that the mangrove forest in the Bokor Village had good density with very dense with a density of 2955.55 Ind/ha and there were 13 species of mangrove flora. The average value of the category of community participation showed 0.41, thus community participation in the development of ecotourism in the Bokor Village was relatively low. The average value of the category community perceptions was 3.32, it means the level of community perceptions of ecotourism development was classified as supporting category. Furthermore, the results showed that the stakeholders related provide a very strong support for the development of ecotourism in the Bokor Village.Based on the result of SWOT analysis, the development strategy in the Bokor Village was by applying an aggressive strategy (Growth Oriented Strategy) or also known as S-O Strategy (Strength-Opportunities). This consisted of making the general management plan and conservation site plan for the development of ecotourism, building and adding the quality of products/services ecotourism (High Quality), improving access to a wider market and establishing cooperation with universities or research institutions in the field of research and conservation.Keywords: Bokor Village, Ecotourism, Participations, Perceptions
Comparative Study On Characteristics Of Solid Waste Black Water In Strait Meranti Islands Natali, Alvin; Siregar, Yusni Ikhwan; Siregar, Sofyan Husein
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The amount of solid waste at station 1 to station more than 2 type of solid waste in the Black Water Strait of each station is almost the same, where the Black Water Strait is dominated by the type of waste plastic and small pieces of wood. In Black Water Strait encountered type of waste that generally consist of plastics, paper, rubber, foam, jute sacks, leaves, and small pieces of wood. From this we can conclude that the solid waste at both stations originate from the same source ie domestic waste. The strong tidal currents provide a direct influence on the amount of solid waste that are found in every point of the study and vice versa if the lower the pressure, the current is the entry-level waste into gear tends to be decreased.Keywords : Comparative Study, Solid Waste, Selat Air Hitam, Meranti Island
KANDUNGAN LOGAM BERATKADMIUM (Cd) DAN TIMBAL (Pb) PADA SEDIMEN, AIR DAN IKAN TEMBAKUL (Periophthalmus sp) DI PERAIRAN DUMAI Siregar, Yusni Ikhwan
Jurnal Kajian Lingkungan Vol 1, No 2 (2013)
Publisher : Jurnal Kajian Lingkungan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research was held on June to August 2012 and aims to analyze the content of heavy metals Cd and Pb in sediment, sea water and tembakul (Periophthalmus sp) in Dumai waters and to determine the correlation between the three. The method used was a survey method with 4 stations sampling were set by purposive with the inclusionof the sourceof pollutants. There was a difference between the content of Cd and Pb in sea water, sediment and tembakul (Periophthalmus sp), in which the heavy metal contentin the sea wateris lower than in sediment and fish. The highest content of Cd in sea water is in Stations1, 2 and 3, which .077mg/L. In the sediment, the highest contentis in Station 3, which is1.819μg/g and the lowest at Station 4, which is 0.690μg/g. Another case in Tembakul, the highest content of Cd is in Station 1, which is 0.447μg/g. Pb content of sea water is highest at Station 2, which is 0.787mg/L and the lowest is on station 4, is equal to 0.370mg/L. The highest content of Pb in the sediment is at station 2, which is 33.221μg/g and remained the lowest at Station 4 with Pb contents value of 19.018μg/g. At tembakul (Periophthalmus sp), the highest Pb content is in Station 2, which is 4.976μg/g and the lowest at Station 4, which is 2,555μg/g. The content of Cd and Pb tembakul in Dumai waters under the in fluence of Cd and Pb content of water and sediment 54,2% increase in the content of Cd in sediments under the in fluence of the water content of Cd.62.5% Cd metal content in fish is in fluenced by the water content of Cd and 42.6% are in fluenced by the Cd conten to f the sediment. For Pb in sediments 60.4% in fluenced by the Pb content of the water. 68.1% Pb metal content in tembakul in fluenced by the water content of Pb and 65.9% under the influence of the Pb content of sediment. It means, if the content of heavy metals in water and sediment increases, it will give a negative impact to tembakul.Keyword: Heavy Metal, Dumai, Water, Sedimen, Tembakul
PENAMBANGAN BATUAN DI KECAMATAN PANGKALAN KERINCI KABUPATEN PELALAWAN Siregar, Yusni Ikhwan
Jurnal Kajian Lingkungan Vol 2, No 1 (2014)
Publisher : Jurnal Kajian Lingkungan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to analyze 1) condition of rocks mining operations existing, 2) stakeholders understanding of good mining practice and 3) physical environment impact of rocks mining operations in sub district of Pangkalan Kerinci Regency of Pelalawan. The methods used to collect the data is a survey method with qualitative descriptive approach. The Mining operations existing condition of the eight mines do not have permit except locations III that only have mining permit (IUP). Mining system still uses an open system and not fully implement the K3 system, environmental protection and post-mining land cover. Stakeholders understanding about good mining practice include: aspects of licensing (72% = understand), technical mining (65% = understand), environmental protection (73% = understand), relationship of the upstream-downstream / conservation / value-added of community development / the area around the operation sites (66% = understand), frame rules regulations and applicable standards appropriate stages of mining operations (79% = very understand ). Health safety (44% = less understand), prepare a post-mining land ( 45% = less understand). Physical environmental impacts arising from mining, include: the loss of natural beauty, the loss of some habitat for flora and fauna, the increase in water runoff (surface run-off), noise (noise) and vibration (ground vibration) due to the operation of heavy equipment, air pollution, oil and used oil spills, soil subsidence and the presence of dry holes without plants.Keywords : Mining, Environmental Degradation, Pelalawan
ANALISIS BEBAN PENCEMAR UDARA AMBIEN DARI KEGIATAN TRANSPORTASI DI RUAS JALAN SOEBRANTAS KOTA PEKANBARU Siregar, Yusni Ikhwan
Jurnal Kajian Lingkungan Vol 2, No 2 (2014)
Publisher : Jurnal Kajian Lingkungan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Network for special road, especially in urban imbalance occurs between the growth rate of the road on one side with a growth rate of vehicles on the other, where the growth path is much smaller than the growth rate of the vehicle, this means showing the occurrence of an excessive load on the road. These conditions resulted in traffic congestion, disrupted travel convenience, travel fatigue, boredom trips, increased air pollution, wastage of time and material it also occurs on roads Soebrantas.The observation of the volume of vehicles on Sunday has the highest volume of 87.059 units 86.384 units followed Saturday and Sunday 73.125 units. The observation of Sunday vehicle top speed is 56,90 km/h followed Friday 54,57 km/h and Saturdays 50,26 km/h. Contributions load of pollutants CO are the largest contributor of pollutant loads. The total load of pollutants on Friday 5.265.420,06 grams/day consisting of CO: 92,43%, NOx: 6,32%, PM10: 1,0% and SO2: 0,25%. Total pollutant load Saturday 4.285.967,57 grams/day percentages: CO: 91,59%, NOx: 6,99%, PM10: 1,13% and SO2: 0,29%. The pollution load on the Sunday 5.215.978,35 grams/day percentages: CO: 92,29%, NOx: 6,41%, PM10: 1,04% and SO2: 0,26%.The main contribution of CO and NO2 pollutant load is predominantly gasoline fueled cars, the dominant source of PM10 motorcycle and SO2 pollutant load is the dominant truck. The results of ambient air quality monitoring for parameters of CO, NOx, PM10 and SO2 in Soebrantas streets on Friday to Sunday is still below the threshold value of ambient air quality.Keywords: Transportation, Motor Vehicles, Pollutant Load
HUBUNGAN KANDUNGAN MINYAK DENGAN KELIMPAHAN DIATOM DI PERAIRAN MERAL KARIMUN PROVINSI KEPULAUAN RIAU Susammesin, Verid Aria; Nurrachmi, Irvina; Siregar, Yusni Ikhwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The research was conducted in February-March 2015 with a goal to determine the relationship between the oil content and the abundance of diatomsin Meral Karimun waters of Riau Islands Province. The survey method was applied in four stations with three sampling strata,i.e. the surface area, the middle and near the bottom. It revealed that the oil content of water ranged from 0.1797 to 0.2063 ppm and diatom abundance were between 44 to 149 cells/l, which contain of 14 species. Apparently, the oil content of seawater was not correlated (p>0.05) with diatom abundance were the coefficient correlation of (r) = 0.318. The regression equation was y = - 468.350x + 184.297 with a coefficient of determination (R2) =0.101 and a correlation coefficient (r) = 0.318. It was suggested that increasing oil content will decrease the abundance of diatoms in the Meral Karimun waters.Key Words:Meral,abundance, diatoms, oil content
Bioakumulasi Kadmium Pada Kerang Hijau (Perna viridis) Dengan Aplikasi Perunut Radioaktif Siregar, Yusni Ikhwan
JURNAL BIOLOGI INDONESIA Vol 6, No 1 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.907 KB) | DOI: 10.14203/jbi.v6i1.3170

Abstract

ABSTRACTBioacumulation of Cadmium on Green Mussel (Perna viridis) Using Radiotracer. A laboratoryexperiment on the accumulation of Cadmium (Cd) by green mussel (Perna viridis) has beenconducted. Radiotracer 109Cd was applied in the study. The research aimed at evaluating theeffect of salinity, temperature and size on uptake of radiotracer 109Cd by green mussel (Pernaviridis) from dissolved phase. It was found that both salinity and temperature had significanteffect ( P< 0.001) on accumulation rate of 109Cd. The highest concentration factor of Cd (31,23-54,09) was appeared in water salinity of 29% and of water temperature 30oC. At the steady statecondition green mussel accumulated 72,21-107,80 Bq/gr Cd. It revealed that the small Pernaviridis (5.2 cm in length) accumulated 109Cd about 107,80 Bq/gr, whereas the bigger size ofPerna viridis (6.6 cm in length) had an uptake of about 72,21 Bq/gr.Key words : Bioaccumulation, radiotracer Cd, Perna viridisKata kunci : Bioakumulasi, Perunut radioaktif, Cd, Perna viridis
Abundance and Distribution of Gastropoda in Intertidal Zone of Teluk Sikulo Beach of Pesisir Selatan Regency West Sumatera Province Rosyidin, Hidayatul; Tanjung, Afrizal; Siregar, Yusni Ikhwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research was conducted in September 2016 in the Teluk Sikulo Beach coastal area of the Pesisir Selatan Regency, West Sumatera Province, aimed to determine the distribution and abundance of gastropods in the intertidal zone. Gastropods samples were taken by using Quadrant Transect Sampling Method and sample was analyzed in Marine Biology Laboratory, Fisheries and Marine Sciences Faculty and data was investigated descriptively. Based on the research upper zone is a zone of its low abundance value of 0.67 ind / m² and lower zones with the highest abundance of 6.33 ind / m², Abundance of gastropods were found during the study on Teluk Sikulo varies, where the highest abundance of species of gastropods are Rhinoclavis vertagus found as many as 17 species and abundance lowest gastropods are 2 species was Cypraea Leviathan and Oliva sp.Keywords: Gastropods, Distribution, Abundance, Teluk Sikulo Beach, West Sumatera
PRODUCTION OF BASIC MATERIAL CARRAGEENAN HYDROGEL USING POLYMER BASED POLYVINYL ALCOHOL (PVA) Nurrahmi, Febi; Siregar, Yusni Ikhwan; Fransiska, Dina
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesia has a local source of raw materials based on natural polymer hydrogel, ie seaweed the number and type of abundant. One of processed seaweed products of high economic value is carrageenan. Synthesis of carrageenan-based hydrogels prepared from local seaweed is still not widely used. Based on the properties that can proved a cooling effect and moisture of water is also restricted by the hydrogel. This research aims to develop the use of carrageenan from seaweed into a hydrogel wound dressings. The current study analysis further the quality of the resulting hydrogel using κ and τ-carrageenan than the optimal concentration of PVA in producing the hydrogel. Well studied conducted with concentration κ and τ -carrageenan (6:4) 3%, and the addition of PVA polymer concentration formulation (7.5%; 10%; 12.5%; 15%), and irradiated using γ-rays at a dose 15 kGy (dose rate of 2.5 kGy / h). Characterization measured include the value of the ratio swelling, gel fraction and tensile strength. The test results hydrogel formulations with increasing concentration of 12.5% PVA ratio swelling 416.58%, 67.39% gel fraction and tensile strenght of 3.48 kg / cm2.Key words: τ-carrageenan, κ-carrageenan, hydrogels, irradiation, hydrogel, a polymer PVA (Polyvinyl Alcohol)
DETERGENT AND DIATOM ANALYSIS IN SELAT AIR HITAM WATERS, KEPULAUAN MERANTI REGENCY, RIAU PROVINCE Fuad, M Anwar; Nedi, Syahril; Siregar, Yusni Ikhwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTThis research aims to analyze the detergent and diatom. content that has been implemented in April 2017. in the Selat Air Hitam Water, Kepulauan Meranti Regency. The method used in this research is survey. Analysis of detergent and Diatom content was done at the laboratoriumkimialaut and Diatom identification was performed at the laboratoriumbiologilaut. The results showed that the detergent content in the waters ranged from 0.5714 to 0.8095 mg /l. Diatom abundance based on laboratory test was 95,83 - 137,84 Ind /l and the relationship of detergent and diatom content in waters by using linear regressiony = 222,0 + - 156,9x with determination coefficientR2= 0,867 and correlation coefficient r = 0.9311. The relationship between detergent and diatom in the waters shows a very strong relationship. Keywords: Detergent, Diatom, Selat Air Hitam, Kepulauan Meranti. 
Co-Authors ', Arfitrah . Zulfan A.A. Ketut Agung Cahyawan W Ade Yulindra Ade Yulindra Adel Zamri Adelina, Adelina Adiana Sulistianto Afriza, Dinny Afrizal Tanjung Agnesia Jaiyani br Barus Agnesia Ritonga Agung Dhamar Syakti Agus Susanto Ahmad Faisal Daulay Ahmad Kurnain ahmad rizal Alfi Puadi Alimah Alimah Alimah, Alimah Almasdi Syahza Alvin Natali Amalia Prafitra Harman Amelia Nabila Anak Agung Istri Sri Wiadnyani Andrew ST OS Anisaldi Anisaldi Anton Akbar Nugraha Antoni Antoni Antonius &#039; Aras Mulyadi Aras Mulyadi Aras Mulyadi Aras Mulyadi Arief Mubyarso Aristya Ardhitama Autika, Yotta Azhari, Febbi Bahruddin Bahruddin Bahtiar Denny Edison Barnes Silitonga Bayhakki Bayhakki Bayu Oktavian Bintal Amin Budi Darmawan Cik Mas Edison Dahlia Dahlia Dameria Dameria Daniel Paskah Ginting Dannes M. Khawarizmi Dariono Dariono Dariono, Dariono Debby Febriani Dedi Afandi Defri Yoza Deni Efizon Denny Mulianto Desi Ariani DESI PURNAMA SARI Desis Tri Yenti Devid Joehari Dharma Eka Putra Dilla Andini Doni Apdillah Dr. Nofrizal, S.Pi, M.Si Edy T S Sihombing Effino Panji Sudewo Efriyeldi Efriyeldi Efriyeldi, Efriyeldi Eko Hendi Saputra Eko Sutrisno Eko Sutrisno, Eko Elda Nazriati Elfizar Elfizar Elizal Elizal Elizal, Elizal Endang Agus Damanhuri Erfana Romauli Lumbantoruan Ernanda Putra Dermawan Ernawaty Ernawaty Fabri Putra Nugraha Fadel Fadel Fadli Aulia Fajar Fajar Fajriani Ananda Fakhrurrozi Fakhrurrozi Febriana Zulmi Febrina Hanum Fepi Yulianti Fika Yulia Rachmah Fransiska, Dina Fuad, M Anwar Hadi Sastranegara Hadinoto Hadinoto Hafidawati, Hafidawati Hari Handika Sektiawan Hasdi Yanti HS Helmi Putra Hendra Taufik Henni Elyati Henni Syawal Herli, Irwan Herli, Irwan Hidayat Pratamasari I Gusti Ngurah Antaryama Iesje Lukistyowati Imam Pangestiansyah Putra Imran Imran Indah Novi Yani Indra Fuadi Irfan Yunus irvina Nurachmi Irvina Nurrachmi Irwandy Syofyan Isjoni Isjoni Jhon Edward Jimmy Copriady Johanes Hutagaol Laura Dameshita Silalahi Lilis Kurnia Lilis Kurnia Lita Febriani M. Delpopi M. Imran Sinaga Maliki Maliki Marpauang, EkoRinaldi Maulana Hardi Melia Nurafni Meuthia Pangerani Miduk Tampubolon Mirna Ilza Miswadi Miswadi Mubarak Mubarak Mubarak Mubarak Mubarak Mubarak Muhammad Arif Fahrurozi Muhammad Dinul Islami Muhammad Fahrul Musanif Effendi Musrifin Galib Nafril Yuzen Nawari Nawari Nesi Silvia Situmorang Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Novi Permata Sari Nugrahani Trie Ryzzky Nurrahmi, Febi Nurul Abdiah Nasution Oktavia Dewi Oktavia Dewi, Oktavia Olfa Riyana Prastya Bayu Afrian Purnama, Indra Dwi Putra Putri Kalbina Ragil Tribhakti Hutomo Rahmadi Rahmadi Rahmadi Rahmadi Rahman Karnila Ramses Ramses Rasoel Hamidy Ridwan Manda Putra Rifardi Rifardi Rifardi Rifardi Rika Kurniawan Rika Kurniawan Rika Kurniawan Rinaldo, Rinaldo Rinaldo, Rinaldo Risna Nofriani Rivaldi Ananda Dwi Putra Roito, Martin Romi Joneri Rommie Jhonerie Ronal Yuriza Fithra Rosyidin, Hidayatul Sania Glory Claudya Sanya Gautami Sayid Zulfahmi Septian Julifar Seung Hun Lee Simon Hasintongan Aritonang Siti Zahrah Siti Zahrah Sofia Anita Sofia Anita Sofia Anita Sofyan Husein Siregar Sri Indarti Sukendi Sukendi Sukendi Sukendi Sukendi Sukendi Susi Sumanti Suwondo Suwondo Syafruddin Nasution Syahril Nedi Syahril Syahril Syahril Syahril Syarwandi David T. Edy Sabli Tengku Nurhidayah Tengku Said Razai Tesya Desi Yana Thamrin &#039; Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Tulus Gandra Saputra Silaban Tyas Handayani Uju Doi Sibarani Verid Aria Susammesin, Verid Aria Viktor Amrifo Viktor Amrivo Vivi Indriani Vivin Seygita Vivin Seygita, Vivin Wariski, Indra Yanti Dasrita Yanti Dasrita, Yanti Yetti Elfina Yossie Amanda Yuliza Fitri Yuwanda Ilham Zahtamal Zahtamal Zulfan Saam Zulfan Saam Zulfan Saam Zulfan Saam Zulfan Saam Zulkarnain Zulkarnain Zulkarnaini Zulkarnaini Zulkifli Zulkifli Zulkifli Zulkifli ZULKIFLI ZULKIFLI