Article Per Year (5 Year)
p-Index From 2020 - 2025
8.062
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

 2   3   4   5   6 
Dissolved Oxygen Based Carrying Capacity in the Sungai Paku Reservoir in the KamparKiri Sub-District, Kampar District, Riau Province Dewi, Afrila; Simarmata, Asmika Harnalin; Siagian, Madju
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 an ability of aquatic environment to support the life of aquatic organisms and it can be determined based on dissolved oxygen concentration. To understand the dissolved oxygen based carrying capacity in the Sungai Paku reservoir, a research has been conducted in June-July 2019. Water samples were taken in three stations, Station 1 (riverine zone), Station 2 (transition zone) and Station 3 in the floating cage area (lacustrine zone). In  each station, there were 3 sampling points, in the surface, in the 2 Secchi depth and in the 4 Secchi depth was done once/week. Water quality parameters measured were dissolved oxygen, CO2, pH, temperature, transparency, depth, nitrate and phosphate. Carrying capacity was then analyzed. Result shown that DO concentration was 4.60-5.88 mg/L, in the surface, 3.77-4.64 mg/L in 2 Secchi depth and 2.08-2.93 mg/L in 4 Secchi depth. Water quality parameters were as follows: depth was 4-6 m, transparency was 69.1-80.8 cm, temperature was 29-30oC, pH was 5, CO2 was 7.92-15.42 mg/L, nitrate was 0.075-0.140 mg/L and phosphate was 0.065-0.0134 mg/L. The dissolved oxygen based carrying capacity in the Sungai Paku Reservoir is 2,032 kg/year and the number of fish cage that can be placed in the dam was 8 units (5 x 5 x 3 m).Keywords :  Dissolved oxygen, Floating cage, Sungai Paku Dam, Water quality
Trophic State of the Bakuok Lake, Aur Sati Village, Tambang District, Kampar Regency, Riau Province Based on Trophic State Index (TSI) Sihombing, Susi; Simarmata, Asmika Harnalin; Siagian, Madju
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

ABSTRACTSeveral activities in  Bakuok Lake contributed the input of organic and anorganic matter that affects the water quality, especially nutrient concentration in waters. A research aims to understand the trophic state of  Bakuok Lake based on TSI has been conducted in June-July 2019. There were three stations namely station 1 (plantation area), station 2 (residential area) and station 3 (fish cage area).In each station, there were 2 sampling points, in the surface (0.15 m) and 2 Secchi depth (1.74 m). Sampling were conducted 3 times, once/week. Water quality parameters measured were total phosphate, chlorophyll-a, transparancy, dissolved oxygen, CO2,pH and temperature. The value of water quality is as follows: the total phospatewas 0.10-0.22 mg/L, chlorophyll-a12.00-14.43 µg/L, transparency:58-87 cm, dissolved oxygen:6.57-7.54 mg/L, CO2:9.37-13.86 mg/L, pH: 5, temperature:29-31oC and TSI (Trophic State Index) value: 62.54-68.00. Based on TSI value, the Bakuok Lake can be categorized asmoderate to eutrophic.Keywords:Kampar River,Eutrophic, Oxbow Lake, Water Quality
Trophic State of Embung AKAPPayung Sekaki DistrictCity of Pekanbaru Based on Trophic Index (TRIX) By: Siahaan, Oloan; Siagian, Madju; Simarmata, Asmika Harnalin
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

 AbstractTrophic Index (TRIX) can be used to determine the trophic state of waters based on chemical and biological parameters. To understand the trophic state of the Embung AKAPwaters based on Vollenweider’s Trophic Index (TRIX), a research has been conducted in November-December 2018. There were three station, namelyStation 1 (inlet), Station 2 (in the middle of Embung AKAP), and Station 3 (outlet).Sampling were conducted 3 times, once/week.Water quality parameters measured were DIN, total phosphorus, dissolved oxygen, chlorophyll-a, transparency, temperature, and pH. Result shown that the transparency was 24,33–25,83cm, temperature was 29-30°C, pH was 5, DIN was 0,31 - 0,39 mg/L, total phosphorus was 0,09-0,48 mg/L, oxygen saturation was 41,64-58,80 %, and chlorophyll-awas 3,09-7,93 µg/L.Trophic Index(TRIX) value of the Embung AKAP was4,79-5,29, and it can be categorized mesotrophic-eutrophic.Keywords :Vollenweider’s, Trophic Index, Water quality, Eutrophic, Mesotrophic
The Dynamics of Phytoplankton Abundance Lake Putus Pangkalan Baru Village Siak Hulu Sub District Kampar District Riau Province Fahrezzy, Reggi; Dahril, Tengku; Simarmata, Asmika Harnalin
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

AbstractThe research of phytoplankton abundance dynamics conducted in July-August 2019 at Lake Putus Pangkalan Baru village. A study aims to know the dynamics of phytoplankton abundance by spatial and temporal. There were 3 stations namely station 1 (inlet area), station 2 (in the middle of the lake) and station 3 (in the end of the lake). In each stations, there were 2 sampling point, in the surface and 2 Secchi depth. Sampling was done 4 times, once/week. Water quality parameters measured were temperature, pH, transparency, dissolved oxygen, free carbon dioxide, nitrate, phosphate. Result shown that temperature 29-30 oC, transparency 59-65 cm, pH 5, DO 3.72-5.74 mg/L, CO2 5.99-10.98 mg/L, nitrate 0.020-0.046 mg/L, phosphate 0.028-0.053 mg/L. Phytoplankton abundance at the surface range 124,432-239,976 cell/L, and 2 Secchi depth range 73,326-124,431 cell/L. Temporal and spatial dynamics of phytoplankton abudance was influenced water quality such as transparency, nitrate and phosphate concentration. Keywords: Temporal, Spatial, Water Quality, Depth
Trophic State of the Pekak Lake, Siak Hulu District, Kampar Regency Based on Trophic State Index M Silalahi, Dio; Siagian, Madju; Simarmata, Asmika Harnalin
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

ABSTRACTMany activities in the Pekak Lake contribute the input of organic and anorganic matter that affects the water quality, especially nutrient concentration in waters. A research aims to understand the trophic state of the Pekak Lake based on TSI has been conducted in March-April 2018. There were 3 stations, namely in the inlet, midle part of the lake and the end area of the lake. In each station,   there are 2 sampling points, in the surface (0.2 m) and 2 Secchi depth (0.75 m). Sampling were conducted 3 times, once/week. Water quality parameters measured were total phosphate, chlorophyll-a, transparancy, dissolved oxygen, CO2,pH and temperature. Results shown that the total phospate was 0.152-0.508 mg/L, chlorophyll-a 7.061-11.186 µg/L, transparency: 0.69-0.77 m, dissolved oxygen: 5.36-5.96 mg/L, CO2:8.81-16 mg/L, pH: 5, temperature: 27-30oC and TSI (Trophic State Index) value:  64.559-70.465. Based on TSI, the Pekak Lake can be categorized as moderate eutrophic-hypereutrophic.Keywords: Kampar River, Eutrophic-hypereurophic, Oxbow Lake, TSI
Trophic State Waters of Kolong Tin Post Mining inBaranTimurVillage Meral District KarimunRegency Kepulauan Riau Province Based on Nitrate and Phosphate Sihombing, Evi Stevani; Dahril, Tengku; Simarmata, Asmika Harnalin
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

AbstractThere were many activites that take place in kolong of tin post mining in BaranTimurVillage MeralDistrictKarimunRegency Kepulauan Riau Province,One of which is fishery activites suspected to provide input in the form of leftover food and metabolic that influenced concentration of nutrient(N and P) in the water.This research aims to know the trophic state in ex-tin mining the ponds kolong of tin post mining in BaranTimur Village Meral District KarimunRegency Kepulauan Riau Provincebased on nitrate and phosphate concentration.A research was conducted during July 2019. There were three stations namely station 1 (inlet area), station 2(in middle of kolong) and station 3 (outlet area). There were 3 vertical sampling points, in the surface, in 2 Secchidepthand in 4 Secchi depth. Sampling was done 3 times, once/week. Water quality parameters measured were nitrate, phosphate, temperature, transparency, pH, dissolved oxgen, and carbon dioxide. Results shown that the nitrate 0.043-0.061 mg/L, phosphate 0.085-0.125 mg/L, temperature 30.3-310C, transparency73.3-78 cm, depth 4-7 m, pH 5, dissolved oxygen 4.10-6.91 mg/L and carbon dioxide 3.32-7.32 mg/L. Based on nitrate concentration,the trophic state in ex-tin mining the ponds of Kolong Tin Post Mining in Baran Timur Village Meral District KarimunRegency Kepulauan Riau Province was oligotrophic, while based on phosphate concentration, it can be categorized as mesotrophic. Keyword :trophic state, nitrate, phosphate 
Trophic State of the AKAP Reservoir, Payung Sekaki District, Pekanbaru Based on the Trophic State Index (TSI) Olivia, Reyka Kristin; H Simarmata, Asmika; Siagian, Madju
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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

Abstract

Abstract Trophic State Index (TSI) is a method used to determine the trophical state of waters. The TSI was calculated based on physical, chemical and biological parameters and it is more representative for analysing the trophical state of waters. This research was conducted in March to April 2018 and it aims to understand the trophic state of the Akap Resevoir. There were three sampling stations namely Station 1 (inlet), Station 2 (in the middle of Akap Reservoir), and Station 3 (outlet). Samplings were done once/week for 3 weeks period. Water quality parameter measured were chlorophyll-a, total phosphorus, transparency, temperature, pH, nitrate, and free carbondioxide. Trophic status was calculated based on Carlson’s TSI. Results shown that the transparency was 24-30 cm, total phosphorus 0.24-0.54 mg/L, chlorophyll-a 25.56-38.38 µg/L, depth 1.63-2.53 m, temperature29-30 0C, pH 5-5.6, dissolved oxygen 2.95-3.28 mg/L and free carbondioxide 7.99-11.98 mg/L, TSI value 67.55-69.9. Based on Carlson’s TSI value, the  Akap Reservoir  can be categorized as moderate eutrophic. Keywords :Akap dam,Chlorophyll-a, Moderate eutrophic
Phytoplankton Based Trophical State of the Tanjung Balam Lake in the Buluh Cina Village, Kampar District, Riau Province Zein Lubis, Solat Adawiyah; Siagian, Madju; Simarmata, Asmika Harnalin
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

                     AbstractMany activities in the Tanjung Balam Lake contribute the input of organic and anorganic matter that affects the nutrient concentration and increasing the growth of phytoplankton. A research about Trophic State of Tanjung Balam Lakeby Phytoplankton in Buluh Cina Village Kampar District Riau Province has been conducted in June-July 2019. The location of the water samples to measure water quality defined 3 stations, namely in the inlet, the curve of the lake, and in the end of the lake. In each station, there were 2 sampling points, namely in the surface (0.15 m) and 2 Secchi depth (0.90 m). Samplings were conducted 3 times at intervals of a week. Water quality parameters measured were temperature, transparency, depth, dissolved oxygen, CO2, pH, nitrate and phosphate contents. Results shown that there were 61 species of phytoplankton that were belonged to 7 classes, namely Chlorophyceae (23 species), Trebouxiophyceae (4 species), Zygnematophyceae (4 species), Euglenophyceae (14 species), Bacillariophyceae (12 species), Cyanophyceae (3 species), and Cryptophyceae (1 species). The phytoplankton abundance in the Tanjung Balam Lake was 606,144-982,688 cells/L. The most common type of phytoplankton present was Monoraphodium griffithii. Results shown that the temperature was 28-30.3oC, transparency was 49.7-54 cm, depth was 151-236.7 cm, pH was 5, dissolved oxygen was 4.03-6.57 mg/L, CO2 was 3.83-6.13 mg/L, nitrate was 0.016-0.03 mg/L, and phosphate was 0.083-0.108 mg/L. Based on the type and abundance of phytoplankton present, it can be concluded that the Tanjung Balam Lake can be categorized as mesotrophic.Keywords: Kampar River, Oxbow Lake, Mesotrophic, Phytoplankton abundance
Types and Abundance of Periphyton Attached to the Pipe Substrates in the Bakuok Lake,Aur Sati Village, Tambang District, Kampar Regency, Riau Province Gultom, Zogi Tri; Dahril, Tengku; Simarmata, Asmika Harnalin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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

Abstract

Abstract            Periphyton is a microorganism that attached to submerged substrate. This research aims to determine the trophic state of the Bakuok Lake in Aur Sati Village based on periphton abundance. This reseacrh has been conducted in July-August 2019. There were 3 stations, namely Station 1 (around the plantation area), Station 2 (settlements area) and Station 3 (around the net cages area). In each station there were two sampling points, namely in the surface (15 cm depth) and 2 Secchi depths (174 cm depth). The substrate used is a pipe substrate (10x11 cm2). Substrate placement done 1 week before sampling. Sampling were conducted 3 time, once/week. The periphyton samples were obtained by spraying the pipe surface with aquadest using a plastic sprayer. . The periphyton were preserved with lugol 1% was then identified using an identification book Prescott (1974), Belcher and Swale (1978), Yunfang (1995), Biggs and Killroy (2000). Water quality parameters measured were temperature, transparency, depth, pH, dissolved oxygen, free carbondioxide, nitrate (NO3) and phosphate (PO4). Result shown  that there were 29 types of periphyton, belongs to 5 classes, namely Bacillariophyceae (14 species), Chlorophyceae (6 species), Cyanophyceae (4 species), Euglenophyceae (2 species), and  Zygnematophyceae (3 species). Periphyton abudance found during the study ranged from 10 cells/cm2-1749 cells/cm2. The most commom periphyton type was Nitzschia acicularis. Based on the type of periphyton, it was concluded that the Bakuok Lake can be catagorized as oligotrophic.  Keyword: Trophic State, Water Quality, Nitzschia acicularis    
Trophic State of The Sungai Paku Reservoir Kampar Kiri District Kampar Regency Riau Province Based on TSI (Trophic State Index) Tamba, Niger Efafras; Simarmata, Asmika Harnalin; Dahril, Tengku
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

AbstractTrophic State Index can be used to determine the trophic state of waters. The TSI used physical, chemical and biological approaches to determine the trophic state and the result will be more representative for analyzing the trophical state of waters. To understand the trophic state of the Sungai PakuReservoir, a research has been conducted in May - June 2019. There were three sampling stations, namely station 1 (riverin zone), station 2 (transition zone) and station 3 (lakustrin zone). In each sampling station there were 3 sampling point of depth, in the surface, in 2 Secchi depth, and in 4 Secchi depth. Sampling were conducted 3 times, once week. Water quality parameter measured were total phosphorus, chlorophyll-a, transparency, temperature, pH, dissolved oxygen and Nitrate. Trophic status was calculated based on Carlson Trophic State Index (TSI). The water quality parameter values were as follows: transparency: 69.2 - 80.8 cm, total phosphorus: 0.056 - 0.176 mg/L, chlorophyll-a: 1.753 - 3.372µg/L, depth: 69.2 - 80.8 cm, temperature: 28 - 30oC, pH: 5, dissolved oxygen: 2.08 - 5.74 mg/L and nitrate: 0.08 -0.11 mg/L. Trophic State Index value of the Sungai PakuReservoir was 54.49 - 59.57, it can be categorie as light eutrophic .Keywords: Water Quality, Reservoir, Light Eutrophic
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. 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 Fauzi 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