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All Journal Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Agro Teknologi Tropika Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Rekayasa Hijau Asian Journal of Aquatic Sciences Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment (JRUCE) CANANG: Jurnal Pengabdian Masyarakat EcoNews South East Asian Marine Sciences Journal

Syahril Nedi

Universitas Riau

Author-ID : 3390741

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Physics Public Health Social Sciences Other

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The Relationship of Nitrate, Phosphate, and Silicate Concentrations to The Abundance of Planctonic Diatoms in Carocok Tarusan Waters, Pesisir Selatan District Yoli Yandra; Syahril Nedi; Elizal Elizal
Journal of Coastal and Ocean Sciences Vol. 3 No. 1 (2022): January 2022
Publisher : Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.3.1.44-53

This research was carried out from December 2020 to January 2021 in Carocok Tarusan Waters, Pesisir Selatan Regency, West Sumatra, which aims to analyze the concentration of nitrate, phosphate and silicate, calculate the abundance of planktonic diatoms and analyze the relationship between the content of nitrate, phosphate and silicate to the abundance of planktonic diatoms present. in the waters of Carocok Tarusan, Pesisir Selatan Regency. The research method used in this study is a survey method while the determination of research stations is carried out by purposive sampling. The results showed that the average nitrate concentration was 0.7792– 0.8757 mg/L, the average phosphate concentration was 1.7220– 2.0833 mg/L and the silicate concentration was 0.6287 - 0.6835 mg/L. Planktonic diatoms found in Carocok Tarusan waters contained 13 species from 3 classes, namely Bacillariophyceae, Chaetoceraceae, and Coscinodiscophyceae. The results of the calculation of the abundance of planktonic diatoms are 17.82 – 20.72 Ind/L. The test conducted to determine the relationship of nitrate, phosphate, and silicate to the abundance of planktonic diatoms was a simple linear regression test. Based on the results of the linear regression test, it is known that the effect of nitrate concentration on the abundance of planktonic diatoms in Carocok Tarusan waters is 00.81%, while the remaining 99.19% is influenced by other factors, for the effect of phosphate concentration on the abundance of planktonic diatoms in Carocok waters. Tarusan is 8.81%, while the remaining 91.19% is influenced by other factors and for the effect of silicate concentration on the abundance of planktonic diatoms in Carocok Tarusan waters as much as 2.97%, while the remaining 97.03% is influenced by other factors

PEMBINAAN KELOMPOK PEMELIHARA AZOLLA MICROPHYLLA DI DESA SUNGAI KAYU ARA, SIAK Irwan Effendi; Afrizal Tanjung; Syahril Nedi; Syafruddin Nasution; Elizal Elizal
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 2 No. 2 (2018): Dinamisia : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Sungai Kayu Ara Village, Siak Regency, Riau Province is a coastal village. The main livelihoods of the people in this village are farming, fishermen and breeders. Pellets and concentrate feed have been used by the community as fish and livestock feed. But the high price of this feed makes this business less profitable. Azolla microphylla as fish feed and livestock has been introduced in Indonesia. This community service activity aims to train coastal communities of A. microphylla cultivation techniques which will later be used as fish feed and other livestock. This activity was carried out with the following stages; 1) Location survey, group formation and coordination. 2) Get off to the field and prepare sites for training. 3) Training of growing substrate fermentation techniques A. microphylla. 3) Training to prepare A. microphylla growing containers. 4) Cultivation training of A. microphylla. 5) Harvesting and giving A. microphylla to livestock. 6) Monitoring and evaluating the results of the trainings. A group of cultivators of A. microphylla has been formed and training has also been carried out with the students of the 2018 UNRI LPPM KKN participants in this village. This group named "SUKARELA" stands for the Sungai Kayu Ara Pemelihara Azolla with 30 members. Initial monitoring results in the second, third and fourth weeks after training showed that these macrophytes can grow well. Some members have enlarged the maintenance container in the form of maintenance tanks.

Analisis of Total Oil Content and Planktonic Diatom (Bacillariophyceae) In the Waters of Lalang Strait, Mengkapan Village Siak Regency Octavia Lorensa Br Sinaga; Sofyan Husein Siregar; Syahril Nedi
Jurnal Perikanan dan Kelautan Vol 27, No 2 (2022): June 2022
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.129-135

Oil pollution in the waters is one of the factors that affect the abundance of phytoplankton, especially the diatom. The waters of Lalang Strait, Mengkapan Village, are used as international shipping lanes and industrial areas. The research was conducted in the Waters of Lalang Strait Mengkapan Village, Siak Regency, Riau Province. The research was conducted at 3 stations with different location characteristics. Station 1 is near Tanjung Button Port, station 2 is in the mangrove ecotourism area, and station 3 is in the fishing port and near the settlement. The result of oil content analysis obtained an average value of 0,00016 ppm. The highest oil content at station 3 is 0,00035 ppm and the lowest at station 2 is 0,00011 ppm. The results of the calculation of the abundance of planktonic diatoms ranged from 5.014 to 22.062 cells/l. The highest abundance at station 1 was 17.716 cells/l. The lowest abundance was at station 2 which was 9.694 cells/l. Simple linear regression test result, obtained equation Y= 14,2644+(-3802,27x). The coefficient of determination (R2)= 0,002 states 0,2 % of the abundance of planktonic diatoms is influenced by oil content and the rest is influenced by other environmental factors. Correlation coefficient (r) = 0,053, so the relationship of total oil content with the abundance of planktonic diatoms is very weak

SEDIMENT FRACTIONS AND ORGANIC MATERIALS IN THE DUMAI RIVER ESTUARY WATERS, RIAU, INDONESIA Syahril Nedi; Yolanda Manik; Elizal elizal
Asian Journal of Aquatic Sciences Vol 1 No 1 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

The purpose of this researched was to analize the consistency of organic material and sediment fraction on estuary in dumai river. The research was with purposive sampling on four stutions. The analysis of sediment fraction in estuary in dumai river had been dominated by mud substract. The result mean size wened very fine sand, of consistency organic material is ranging 7,37 - 24,01 mg/l. The result sorting value wered poorly kurtosis value were ektremly leptokurtic, and skewness dominant value were negative. Difference of fine grafain and type of sediment on estuary in Dumai River had effect by physics and chemical factor.

ANALYSIS CONCENTRATION OF NITRATE, PHOSPHATE, SILICATE AND RELATIONSHIP WITH DIATOM ABUDANCE IN WATERS TANJUNG TIRAM DISTRCTS BATU BARA REGENCY OF NORTH SUMATERA PROVINCE Rahmad Hidayat; Syahril Nedi; irvina Nurachmi
Asian Journal of Aquatic Sciences Vol 2 No 1 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Input of nutrients into the waters from various human activities (residential, agriculture and industry) has the potential to cause changes in the physical, chemical and biological conditions of the waters. The study aims to determine the relationship of concentrations of nitrate, phosphate and silicate with the abundance of diatoms in the Tanjung Tiram waters. The method used is the survey method, the determination of the location of sampling is done by purposive sampling, data analysis (multiple regression). Based in the results of laboratory analysis nitrate concentrations ranged from 0,0819 – 0,1167 mg/l, the phosphate concentration ranged from 0,1002 – 0,1526 mg/l, and silicate concentration ranged from 0,04447 – 0,5418 mg/l. The abundance of diatoms in Tanjung Tiram waters ranged from 156,9 – 302,8 ind/l. The results of statistical analysis of the relationship of nitrate, phosphate and silicate with the abundance of diatoms are expressed in terms of equation Y = 350,906 – 58,065Nitrate– 2644,624phosphate+ 440,363Silicate. This statement explains the concentration of nitrate, phosphate related negative (-) to the abundance of diatoms and silicate positive (+) related to the abundance of diatom. This condition shows that the nutrient concentration in these waters is relatively high so that it affects the abundance of diatoms.

ANALYSIS OF NITRATE, PHOSPHATE AND CONCENTRATION ABILITY OF DIATOM (Bacillariophyta) PLANKTONIK IN THE SUMATERA PROVINCE OF WEST NIRWANA BEACH Theresia Tampubolon; irvina Nurrachmi; Syahril Nedi
Asian Journal of Aquatic Sciences Vol 2 No 1 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

This research was conducted in August 2018 with the aim to determine the concentration of nitrate and phosphate in the waters of Nirwana Beach, find out the type and abundance of diatoms found in the waters of Nirwana Beach, and determine the relationship of nitrate and phosphate concentrations to diatoms in Nirwana Beach waters. Determination of sampling location using purposive sampling, namely by taking into account the conditions and conditions of the research area. Sampling of nitrate and phosphate using a sample bottle measuring 100 ml then given preservatives and diatom samples using a bucket and filtered with plankton net no.25 and preserved with 4% lugol solution as much as 3-4 drops and analysis was carried out at the Marine Chemistry and Marine Biology Laboratory , Faculty of Fisheries and Marine Affairs, University of Riau. The results showed nitrate concentration in Nirwana Beach waters ranging from 0.5 mg / l - 0.3 mg / l. And phosphate concentration in the waters of Nirwana Beach ranges from 0.19 mg / l - 0.08 mg / l. In the coastal waters of Nirvana there are 16 species of diatoms found. The highest abundance of diatom species from all species found was Cosconidiscus sp with an average of 4263 ind / l per station. While the lowest abundance of species is Melosira sp, Thalassionema sp, Neodelphinies sp, Rhizossolenia sp and Cocconeis sp with an average of 73.5 ind / l. Diatom diversity index (H ') in Nirwana Beach waters is classified as moderate and community stability is categorized as moderate, there is no type that dominates the uniformity index (E) Nirwana Beach waters are still balanced and there is no competition for food or places. and phosphate with an abundance of diatoms which in this case means that the higher the concentration of nitrate and phosphate, the more abundance of diatoms.

CONTENTS OF NITRATES, PHOSPHATES, SILICATES AND MISTAKES DIATOMS (Epiphytic) IN SEAGRASSES (Thalassia hemprichii) WATERS NIRWANA BEACH KECAMATAN TELUK NIBUNG KOTA PADANG SUMATERA BARAT PROVINCE Sakinah Rachmadani Rambe; irvina Nurachmi; Syahril Nedi
Asian Journal of Aquatic Sciences Vol 2 No 1 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Epiphytic diatoms are diatoms whose lives are associated with plants, one of which is seagrass. Nitrates, phosphates and silicates are needed to support growth and development, especially epiphytic which attaches to seagrass leaves. The research was conducted in May 2018 in the waters of Nirwana Beach, Teluk Nibung Subdistrict, Padang City, West Sumatra Province. The aim of this study was to determine the relationship of nitrate, phosphate, and silicate content to the abundance of diatoms. The method used in this study is the survey method. Taking diatom samples is done by grinding the surface of seagrass leaves using a brush, while sampling nitrates, phosphates and silicates is done using a water sampler. The results of this study indicate that nitrate concentrations ranged from 1,250-1,255 mg / l, phosphate 0,031-0,570 mg / l and silicate 1,180-1,700 mg/l. The total abundance of diatoms ranges from 459-3446 ind / cm2, where the diatom genus that dominates at each station is Navicula, Isthmia, and Stephanopyxis. Based on statistical analysis shows that the content of nitrate, phosphate, and silicate has a positive relationship to the abundance of epiphytic diatoms.

THE EFFECT OF GIVING DETERGENTS TO THE GROWTH OF Azolla microphylla IN BRACKISH WATER Annisa Presti Parbo; Irwan Effendi; Syahril Nedi
Asian Journal of Aquatic Sciences Vol 2 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

This research conducted on March to April 2019 with the aim of knowing the effect of detergent on the growth of A. microphylla. The results showed wet weight growth ranging from 2-23.81 grams (control) and 1.43-8.35 grams (addition of detergent). Absolute weight growth ranges from 3.63-8.47 grams and 1.77-3.28 grams. Growth in the number of colonies between 39.66-295 colonies and 37.66-98.33 colonies. Growth doubling time day 3-23 and 3.63-7.66 days. The growth of wet weight and the number of colonies of A. microphyla increased in each data collection on the control treatment media, while the addition of detergent treatment increased on the day 5 and day 10 and on the day 15 and day 20 decreased.

ANALYSIS CONTENT OF ORGANIC MATTER IN SEDIMENT AND ABUNDANCE OF MACROZOOBENTHOS IN TELUK BUO PADANG WEST SUMATERA Rinol Putra Utama; Syahril Nedi; Afrizal Tanjung
Asian Journal of Aquatic Sciences Vol 2 No 3 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

This research was conducted in May 2018 in the waters of Teluk Buo, Padang, West Sumatra. The purpose of this study was to determine the environmental quality of the Teluk Buo waters, especially to determine the abundance of macrozoobenthos and determine the relationship between sediment organic matter and abundance of macrozoobenthos. The method used in this study is a survey method. The results of the study note that the waters of the Teluk Buo are included in the medium polluted criteria with a diversity index (H ') ranging from 2.18-3.43, dominance index (C) 0.10-0.32 and uniformity index (e) 0.51-0,78. Abundance ranges from 80-240 ind/m2 with the number of macrozoobenthos species found there are 9 species of gastropods and 5 species of bivalves. The relationship of sediment organic matter content to macrozoobenthos abundance was included in the moderate criteria with a correlation coefficient (r) -0.382.

SEDIMENT ORGANIC MATTER AND MAKROZOOBENTHOS ABUDANCE IN WATERS OF PURNAMA DUMAI Misael Gurning; Syahril Nedi; Afrizal Tanjung
Asian Journal of Aquatic Sciences Vol 2 No 3 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

This research was conducted at April 2019 in Waters of Purnama Dumai. The aim of the study was to analyze the content of organic sediment and macrozoobenthos abundance and the relationship of organic sediment with macrozoobenthos abundance. The method used was a survey method consisting of 4 stations with 3 replications at each station. Sampling was carried out in the field and then taken to the Marine Chemistry Laboratory for analysis of sediment and organic material fractions. The results showed that the average content of organic sediment material in Waters of Purnama Dumai is 66,47 % and the content of organic sediment material between different stations is not significantly different (P>0,05) while the abundance of macrozoobenthos is 32 ind/m2 and the abundance of macrozoobenthos between stations was not significantly different (P>0,05). The relationship between the organic matter content of sediments and the abundance of macrozoobenthos has a value (r) = 0,235797 which means it has a weak relationship.

Co-Authors Abdullah ' Afrizal Tanjung Al Usman Andhini, Nadia Andika Lazuardi Andika Sitohang Annisa Presti Parbo Anthony Hamzah Aqil Fikar Rivai Aras Mulyadi Aras Mulyadi Aras Mulyadi Aritonang, Desy Novela Azhara Diana Azizul Fauzan Bambang Pramudya Barnes Silitonga Besri Nasrul Bintal Amin Brilliant Esye Lousiana Cyndy Abmi Damai S Harefa Denny B Hutagaol, Denny B Dessy Yoswaty Dewita Buchari Dewita Dewita Dianti Farhana Kamasela Edy T S Sihombing Efriyeldi, Efriyeldi Elizal, Elizal ESTY KURNIAWATI Etty Riani F, Feliatra Fajri Ramayori Febri Wando Situmorang Fuad, M Anwar Herlin Margaretha Situmorang Indah Puspita Ningrum irvina Nurachmi Irvina Nurrachmi Irwan Effendi Ishlahul Fikri Islamiati, Bening Juliper Parasian Sirait Jumahat Siregar, Jumahat Lita Sari Manik, Yolanda Manuwoto Manuwoto May Sarah Silitonga Mayang Shintana, Mayang Michael Prawira, Michael Misael Gurning Muhammad Aditya Pradana Muhammad Amien Musanif Effendi Musrifin Ghalib Nababan, Sumiati Friesledi Nisa Tria Fatma Nur Aisyah Lubis Nursit Wijayanto Nursyirwani, Nursyirwani Octavia Lorensa Br Sinaga Pasaribu, Ridwan Saiful Basri Paul Rozeki Sinaga Phivi Andriza Phivi Andriza Rahmad Hidayat Rahmi Delima Putri Rasmiati, Eva Resfianto Resfianto Rica Purnama Sari Ridowan Kolif Ridwan Manda Putra Ridwan Manda Putra Rifardi ' Rifardi Rifardi Rinol Putra Utama Rio Aprialis Safitra Riska Khaironisa Riska Khaironisa Ronaldy Saputra Simamora, Ronaldy Saputra Rozalina Rukiana Safira Mutia Sakinah Rachmadani Rambe Sania Bariddah Sarah Puspita Semangat Riski Hasibuan Sihaloho, Elpon Simanjuntak, Benny Ly Sofyan Husein Siregar Sri Ramadhani Suardi ' Sukendi Sukendi Sumiati Friesledi Nababan Suriyanto Suriyanto Syafruddin Nasution Syukri Fajar Tengku Rahma Lopi Theresia Tampubolon Tomi Suhendra Wage Pranowo Yenisustri Ani Yolanda Manik Yoli Yandra Yulina Sari Yunus, Budi Andri Yusni Ikhwan Yusni Ikhwan Siregar Zulkifli ' Zulkifli Zulkifli

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