Article Per Year (5 Year)
p-Index From 2021 - 2026
4.318
P-Index
This Author published in this journals
All Journal Jurnal Akuatika Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan JCES (Journal of Character Education Society) Jurnal Penelitian Perikanan Indonesia Unri Conference Series: Community Engagement ECOTONE South East Asian Water Resources Managements Jurnal Perikanan dan Kelautan Jurnal Natur Indonesia
Asmika Harnalin Simarmata
Dosen Pengajar Jurusan Manajemen Sumberdaya Perairan Fakultas Perikanan Dan Ilmu Kelautan Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics Social Sciences

Published : 147 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 147 Documents
Search

 5   6   7   8   9 
Trophic Status of the Koto Tibun Reservoir, Kampar District, Riau Province Based on Trophic Index (TRIX) Irwan Nababan; Clemens Sihotang; Asmika Harnalin Simarmata
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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

Abstract

Abstract  Koto Tibun Reservoir receivedwater from the Tibun River.In the area around the upstream of the river, however, there are many human activities that nutrient the river and as a consequence affects the trophic status of the dam. To understand the trophic status of the dam based on Trophic Index (TRIX), a research was conducted in February – March 2018. There were 3 sampling stations namely Station 1 (riverine zone), Station 2 (transition zone) and Station 3 (lacustrine zone). Samples were taken once/week. Water quality parameters measured were DIN (Dissolved Inorganic Nitrogen), total phosphorus, dissolved oxygen, chlorophyll-a, transparency, temperature and pH. Results shown that the transparency was 75.3–78.6cm, temperature 25.5–25.80C, pH 5, total phosphorus 0.13–0.19 mg/L, DIN 0.45–0.50 mg/L, chlorophyll-a 3.10–3.97 μg/L and oxygen saturation 57.17–68.17 %. The TRIX value ranged from 2 to 2.5 and indicates that the Koto Tibun Reservoir can be categorized as mesotrophic. Keyword :Koto Tibun Dam, Water quality, Nutrient, Mesotrophic
The Trophic Status of Bandar Kayangan Reservoir Lembah SariRumbai Pesisir Sub District Pekanbaru City Province Riau Based on Phytoplankton Abundance Tri Wahyudi; Tengku Dahril; Asmika H. Simarmata
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

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

Abstract

ABSTRACT Trophic Status shows the level of water fertility that can be measured from nutrient, transparency and other biological activities that occur in a body of water. The study has been conducted December - January 2019.This study aims to determine the trophic status of the reservoir based on the type and phytoplankton abundance. There were 4 station, namely Station 1 in  Ambang river (station 1), and merbau river (station 2), station 3 in zone transition and station 4 in zone lacustrine. Samples were carried out 3 time with one weak interval. The quality of water parameters is temperature, transparency, depth, acidity (pH), dissolved oxygen, free of carbon dioxide (CO2), nitrate (NO3), fosfat (PO4). The type of phytoplankton found 4 classes namely  Bacillariophyceae (2 species), Chlorophyceae (9 species), Cyanophyceae (4 species) and Dynophyceae (1 species).   Phytoplankton abudance range 5147cells/ Liter – 6454 cells/Liter. Water quality parameters such as transparency range 57 – 60,2 cm, temperature range 31-32oC, pH 5, dissolved oxygen range 5,38 – 8,31 mg/L, free carbon dioxide range 0,208 -0,293 mg/L, nitrate range 0,075 – 0,096 mg/L. Based on  phytoplankton abundance , the waters of the Bandar Kayangan reservoir can be categorized oligotrophic. Keyword: Phytoplankton, Water Quality Parameters, Oligotrophic
The Vertical Profile Of Nitrate in Pinang Dalam Oxbow Lake Buluh China Village Siak Hulu Sub District Kampar District Riau Province Muhammad Zaki; Madju Siagian; Asmika Harnalin Simarmata
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 research has been done in Pinang Dalam Oxbow Lake from Maret 2014. Thisresearch aims to understand the vertical profile of nitrate in Pinang Dalam oxbow lake. Theresearch used survey method. Sample were taken in three stations, namely station 1, station 2 andstation 3. Sampling vertical based transparency, at surface, 2,5 secchi disk, and in the bottom.The parameters of water quality measured nitrate, phosphate, temperature, transparancy, depth,pH, free carbon dioxide (CO) and dissolved oxygen (DO). The result shown nitrate range 0,020- 0,337 mg/L, phosphate 0,037 – 0,710 mg/L, temperature 28,3-28,7 oC, transparancy 27,3-28,5cm, depth 145-302 cm, pH 5, free carbon dioxide 5,33 - 9,32 mg/L, and dissolved oxygen 2,40- 6,83 mg/L. The vertical profile of nitrate showed increased with the increment of depth. Theparameters of water quality were observed still support the aquatic organisms.Keywords : nitrate, the vertical profile, Pinang Dalam Oxbow
Nitrate Concentration from the Water around the Floating Cage fish culture area and from the area with no cage, in the DAM Site PLTA Koto Panjang Erwin David Sianipar; Madju Siagian; Asmika Harnalin Simarmata
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

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

Abstract

In floating cage fish culture activities, degradation of feed remain and fish feces will increase the nitrate content in the surrounding area. A research aims to understand the Nitrate concentration in the water from the cage area and from the area that has no cage has been done from July – November 2014. There were 3 stations, in the 200 m upstream of the cage area (S1), in the cage area (S2) and 200 m downstream of the cage area (S3). Samplings were conducted 4 times, once/2 weeks. In each station, water samples were collected from 3 different depths, in the surface; 2 secchi and 4 secchi depths. Parameter measured were pH, nitrate concentration, phosphate concentration, dissolved oxygen, transparency, temperature and depth. Result shown that the concentration of nitrate in the S1 was 0.02 – 0.09 mg/L; in the S2 was 0.07 – 0.28  mg/L; and in the S3 was 0.05 – 0.18  mg/L. The highest concentration indicates that the Koto Panjang Dam can be classified as eutrophic, especially in the area around the cage. Other water quality parameters measured were temperature : 30.60C – 310C; phosphate 0.03 – 0.35 mg/L; transparency 1.98 m – 2.55 m; depth 27 m – 40 m; pH 5 and free CO2 4.66 mg/L – 15.31 mg/L. The values of water quality parameters indicate that the water quality in the Koto Panjang Dam is good and might be able to support the life of aquatic organisms in that area. Keywords: nitrate, PLTA Koto Panjang Dam, Caged Fish Culture, phosphate  
The Vertical Profile of Phosphate on the Bakuok Lake in Aursati Village Tambang Subdistrict Kampar District Riau Province July Prenky Purba; Madju Siagian2; Asmika H. Simarmata
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 research has been done on the Bakuok Lake in Aursati Village Tambang Subdistrict District Kampar in March - April 2014. This research aims to understand the vertical profile of phosphate in this reservoir. The research used survey method. The sample’s were taken from three station and vertically in three sampling point. The parameters of water quality measured were observed pH, dissolved oxygen (DO), brightness, temperature and depth. Sampling vertical based on transparency, namely at surface, 11/2 Secchi depth and in the bottom of lake. The result shown the concentration of phosphate at the surface: 0,01 mg/L – 0,03 mg/L; in the 11/2 Secchi depth; 0,04 mg/L – 0,09 mg/L; and the bottom of lake: 0,09 mg/L – 0,17 mg/L. The vertical profile of phosphate showed the concentration increased with the increment of depth. The water quality parameter were temperature 29,6oC – 30oC; transparancy 74,3 cm – 93,7 cm; depth: 208 cm – 332 cm; pH: 6 and dissolved oxygen (DO): 1,78 mg/L – 5,33 mg/L. The concentration of phosphate in Bakuok Lake showed the tropic status was mesotropic and all the water quality still support the aquatic organisms life.Keywords : Phosphate, the vertical profile, Bakuok Lake
Types and abundance of phytoplankton of the Boko-Boko Peat swamp in the Langgam Village, Langgam District, Pelalawan Regency, Riau Province Agung Prabowo; Asmika Harnalin Simarmata; Madju Siagian
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

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

Abstract

The area around the Boko-Boko peat swamp has been used for palm plantation. Remains of fertilizer and pestiside used in the plantation may enter the water and decrease the water quality of the swamp and thus reduce the water quality in general. To understand the type and abundance of phytoplankton in the Boko-Boko peat swamp’s waters, a research was conducted in March 2016. There were three sampling stations namely Station 1, Station 2, and Station 3. Samplings were conducted 3 times, once/week. Results shown that there are 18 species of phytoplankton present in the peat swamp. They were classified into four classes, namely: Bacillariophyceae (6 species), Chloropyhceae (1 species), Cyanophyceae (5 species) and Xanthophycea (3 Species). The average of phytoplankton abundance was around 10,948 – 18,186 cells/L, species diversity index (H’) was 2.082 -2.424, index equatibility (E) was 0.81 – 0.86 and dominance index (C) was 0.218 – 0.288. While the water quality parameters were as follows: temperature 30.1 – 30.4 0C, transparency 48.6 - 60 cm, depth 148.3 – 180 cm, pH 5, CO2 : 7.32 – 9.99 mg/L, DO : 2.54 – 3.26 mg/L, nitrate : 0.4444 – 0.6436 mg/L and phosphate : 0.7779 – 0.123 mg/L. Based on the abundance of pyhtoplankton, it can be concluded that the peat swamp Boko - Boko can be categorized as mesotropic.Keywords : Phytoplankton, Peat Swamp, WaterQuality, Boko-Boko
Trophic state of the Tanjung Putus Lake, Siak Hulu District, Kampar Regency, Riau Province based on Trophic States Index Agustri Minggu Samosir Minggu Samosir; Tengku Dahril; Asmika H Simarmata
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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

Abstract

 ABSTRACTMany activities in Tanjung Putus Lake Buluh Cina Village, Kampar District, Riau contributed the input of organic and anorganic matter that affectsthe water quality, especially nutrient concentration in waters.  A research aims to understand the trophic state of Tanjung Putus Lake, Buluh Cina Village, Kampar District, Riau based on TSI has been conducted on March, 2018. There were 3 station namely station 1 (inlet area), station 2 (in the middle of lake) and station 3 (outlet area). In each stations, there were 2 sampling sites, in the surface and in the middle of water column. Sampling was done three times, onces a week. Water quality parameters measured were transparency, temperature, pH, dissolved oxygen, phosphate and nitrate concentration. Results shown that transparency : 85.17 – 96.50 cm, total phosphorus : 100.3 – 143.8 µg/L, chlorophyll-a : 6.406 – 8.497 µg/L, depth :160 cm – 250cm, temperature 30.2 – 31.8 ºC, 5, dissolved oxygen 4.82 – 6.48 mg/L and nitrate : 0.04 – 0.06mg/L TSI value (60.352-66.61). Based on the TSI  of  Tanjung Putus Lake was categorized as light eutrophic. Keywords:Tanjung putus lake, water quality, eutrophic
Carrying Capacity Assesment Based on Chlorophyll-a in The Perupuk Lake, Kampung Pinang Village, Kampar District, Perhentian Raja Subdistric, Riau Province for Extensive Fishing Efredy Tamba; Asmika Harnalin Simarmata; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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

Abstract

ABSTRACTCarrying capacity is defined as the ability of aquatic environment to support the life organism in that area. This study aimed to assess the aquatic carrying capacity of the Perupuk Lake for extensive fishing. The carrying capacity was determined based on primary productivity using the chlorophyll concentration, which is indicating the existence of phytoplankton in waters. A study was conducted in June-July 2019 in Perupuk Lake. There were 3 stations, namely station 1 (inlet area), station 2 (in the middle of  lake) and station 3 (the end of the lake). In each station, there were 2 sampling points, in the surface (0.15 m) and 2 Secchi (0.90 m). Sampling were conducted 3 times, once/week. Water quality parameters measured were transparency, temperature, pH, dissolved oxygen, CO2, nitrate, phosphate, and chlorophyll-a concentration. Results shown water quality parameters were as follows: concentration of chlorophyll-a was 7.32-8.65 µg/L, transparency 45-50 cm, temperature 28-30oC, pH 5, dissolved oxygen 5.35-6.4 mg/L, CO2  7.32-14.64mg/L, phosphate 0.03-0.06 mg/L, and nitrate 0.12-0.0.18 mg/L. Based on chlorophyll-a concentration, carrying capacity of the Perupuk Lake for extensive fishing was 0.906 tons/year.Keywords :Oxbow lake, primary productivity,phytoplankton, water quality, aquatic
Carrying Capacity of PLTA Koto Panjang Reservoir Based on Dissolved Oxygen For Fish Net Cage Culture in Batu Bersurat Village, XIII Koto Kampar Sub District, Kampar Regency, Riau Province Tiara Priskila; Tengku Dahril; Asmika Harnalin Simarmata
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

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

Abstract

AbstractCarrying capacity is an ability of aquatic environment to support the life of organism in aquaculture. This research aims to determined carrying capacity based on dissolved oxygen for fish net cage. It was conducted on June-July 2019 in PLTA Koto Panjang Reservoir Batu Bersurat Village. Sampling was determined at 3 locations namely Station 1 (tourism area and arround of this station there were palm’s plantation), Station 2 (restaurant and trees around the station) and Station 3 (floating net cages area). Each station there were three sampling points, namely in the surface (15 cm), 2 Secchi depth (330 cm) and 4 Secchi depth (660 cm).  Sampling was carried out 4 times, once/week. Water quality parameters measured were dissolved oxygen, free carbondioxide, BOD5, nitrate, phosphate, pH, temperature, transparency and depth. The results shown the concentration of dissolved oxygen in the waters ranged from 5.42-7.39 mg/L, nitrate 0.0568-0.0828 mg/L, phosphate 0.0592-0.0963 mg/L, free carbondioxide 5-12.99 mg/L, BOD5 4.03-8.90 mg/Ltransparency 153.5-161.25 cm and temperature 28.8-30.8 oC. Based on dissolved oxygen concentration indicates that the carrying capacity of inundation is 63,727 kg/yearand 141 units floating cage with size(6 x 6 x 6) m3.Keywords : Concentration, depth, floating net cages, water quality,BOD5
Water Condition of Salo River Based on Physical-Chemical Parameters Rini Sinaga; Clemens Sihotang; Asmika Harnalin Simarmata
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

Salo River is one of the Kampar River’s tributaries. Several activities conducted along the river produced pollutant that affects the water quality of the river in general. A research aims to understand the water condition in the Salo River based on physical-chemical parameters was conducted from April to May 2015. There were three stations (St1, St2 and St3) and water samples were taken once/week for a 4 weeks period. Water quality parameters measured were current speed, depths, temperature, transparency, turbidity, pH, DO , CO2, BOD5, nitrate and phosphate content. Results shown that the current speed was 17.5-38 cm/second, depths 29-36.3 cm, temperature 28-28.5 ºC, turbidity 3.34-5.36 FTU, pH 5, DO 6.89- 8.23 mg/L, CO2 7.99-8.99 mg/L, BOD5 2.39-7.29 mg/L, nitrate : 0.0275-0.0555 mg/L, and phosphate 0.0375-0.0525 mg/L. Nitrate and phosphate concentration indicate that the Salo River is in oligotrophic condition.Keywords : Salo River, Water Quality, oligotrophic
Co-Authors ', Edduardo Abdi Doly Tarigan Adithia Netanyahu Purba Agung Prabowo Agustri Minggu Samosir Minggu Samosir Ali Akbar Navis Amat M. Siregar Amat Marustar Siregar Andri Hendrizal Arico Candra Tambunan Astria, Katarina Gita Ayunanda Mustika Sari Azmudin ' Bennawaty Bennawaty Berton Panjaitan Beta Posmarito Pardede Bibiana W. Lay Br Sitorus, Chrisna Heni Nozelina Br. Allagan, Desima Kristina Buala Ziduhu Laia Budijono, Budijono Christin M. Saragih Cindy Fantika Sari Clara Novicasari Br Surbakti Clemen Sihotang Clemens Sihotang Cristy Artha D Sinurat D Kusumawati, Yuliana Dameyana S.C Lumban Tobing Darwinda Darwinda Dasti Janarko Putra, Dasti Janarko Defi Fitriya Dalimunthe Deni Efizon Desi, Ria Irawan Dewi, Afrila Diah Sari Ninggrum Dimas Dwi Nugroho Santoso Dio M Silalahi Dumaria, Roma Efredy Tamba Eka Dwinata Nopitasari Eko Purwanto Eko Simatupang Ella Dabella Manja Enan M. Adiwilaga Erwin David Sianipar Esmi Yanti br Sinaga Fadilah, Nisa Wangi Tresna Fahrezzy, Reggi Farida Sri Indah Ginting, Dinda Julianti Gultom, Zogi Tri Harjoyudanto, Yudho Hendra Saputra Henni Syawal Hidayati Hasibuan Hidayatunnisah, Putry Hikma, Murbeni Hosianna Sitorus Indra R. Simangunsong, Indra R. Indradewa, Rhian Irfan Anggriawan Irwan Nababan Isma Mulyani Jerima, Raihan Jiboro, Mega Rani Joko Samiaji Juliana Ivana Siregar Julianti ' July Prenky Purba Krismanto Viade Nababan Libra Trio Situmorang, Libra Trio Lubis, Helfrida M Silalahi, Dio M. Arifan Fadhilla M Madju Siagian Madju Siagian Madju Siagian Madju Siagian Madju Siagian2 Magdalena Fitriani Daeli Maju Siagian Mandasari, Ayu Defi Manurung, Dostiarni Minsa Karolina Maria Virgita Sihaloho, Maria Virgita Merlin Evan Olivia Hutauruk Miranda Wahyuni Raja Gukguk Muhammad Edom Rifai Muhammad Zaki Mulyani, Isma Munthe, Ayaki Tomala Nadia Putri Julita Nadira, Ismi Nainggolan, Dorma Abigail Natasya Margareth Pasaribu Nia Anggraini Nugroho, Rio Cahyo Nuraini El Fajri Nurrina, Haura Olivia, Reyka Kristin Petrus Juandatua Sirait, Petrus Juandatua Prakoso, Dodo Prian Mintaito Simangunsong Putra, Aldo Pratama Radieka Febyando, Radieka Rahmi Hidayana Hasibuan Raihan Jerima Rancelia Kristina Simanjuntak Rati Muspa Rekha Mutiara Manurung Renny Sibuea Ricki Meno P Sinurat Ricky Christoper P. S Rina D’rita Sibagariang Rina Maria Rini Sinaga Rodo Sinatra Nababan, Rodo Sinatra Roma Dumaria S Sinaga, Jefri Daniel Santo Rio Pakpahan Santoso, Dimas Dwi Nugroho Santun Tua Siburian Satria Yunda Sembiring, Rinawati Septriza Radella Shinta Permata Sari Siahaan, Oloan Sibagariang, Rina D'rita Sibagariang, Rina D’rita Sibuea, Renny Sihombing, Djob Fernadi Sihombing, Evi Stevani Sihombing, Susi Silaen, William Fransisco Simangunsong, Perdinan Simanjuntak, Taruli Septiana Sistim Wehalo Sitohang, Dohar Sitorus, Rike Yance Sofyan Husein Siregar Sovianti, Yona Syada Nopriadi Akbar Tamba, Niger Efafras Tengku Dahril, Tengku Theresia Tifany Saragih Tiara Priskila Tri Prartono Tri Wahyudi Triani, Mike Tuti Maisarah Br. Siregar Valentina Manurung Walmon Sinaga Windarti Windarti Windarti Windarti Yeni Handayani Yona Sovianti Yudho Harjoyudanto Yudi Asriansyah Yuli Suciati Yuni Piratih, Yuni Yunita, Sarah Amelia Yuris Fiestaria Naibaho Yusmidar Yusmidar Zaini Hafiz Zein Lubis, Solat Adawiyah