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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

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Makrozoobenthos Sebagai Indikator Biologis Tingkat Pencemaran Muara Sungai Rokan Provinsi Riau Yusmidar Yusmidar; Madju Siagian; Asmika Harnalin Simarmata
Berkala Perikanan Terubuk Vol 43, No 2 (2015): Juli 2015
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.43.2.47 - 59

Abstract

Aimed this study was assess the level of pollution Rokan estuary using macrozoobenthos as bio-indicators, assess the level of pollution of water quality in Rokan estuary and examines the relationship between macrozoobenthos of water quality in Rokan estuary. This study was conducted in September 2014 in Rokan estuary. Location of sampling consisted of four stations namely ST 1 in the village of Pekaitan, ST 2  between the village of Pekaitan and the village of Sungai Panji - Panji, ST 3 in the village of Sungai Panji - Panji and ST 4 in the village of West Bagan. Samplings were conducted three times, once per week at high tide and low tide. This research used survey method and data analysis using BBI and AMOEBA method. The results of this study indicate that the pollution level of Rokan estuary by macrozoobenthos as bioindicator were heavily polluted, where as based on water quality were light polluted to moderate polluted.
The Vertical Profile of Phosphate on the Baru Lake in Buluh Cina Village Siak Hulu Subdistrict Kampar District Amat M. Siregar; Asmika H. Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

This research has been done on the Baru Lake Buluh Cina Village Siak Hulu SubdistrictDistrict Kampar from March - April 2013. This research aims to understand the vertical profile ofphosphate in this lake. The researh used survey method. Sample were taken horizontally in threestation and vertically in three sampling point. The water quality parameters measured were pH,dissolved oxygen (DO), based on transparancy, temperature and depth.The concentration of phosphate was 0,016 - 0,113 mg/l. The value of pH was 6. Theconcentration of dissolved oxygen (DO) was 2,6 – 5,47 mg/l. Based on transparancy was 47,0 -55,8 cm. Temperature was 29 – 30,3ºC. Depth was 346 – 409 cm. Phosphate consentration insurface was 0,016 – 0,037 mg/l, while in bottom was 0,063 – 0,113 mg/l. The vertical profile ofphosphate in bottom was higher than in the surface. The parameters of water quality were observedstill sustain the aquatic organism life.Keywords: phosphate, vertical profile, Baru Lake
Carrying Capacity Assessment Based on Chlorophyll-a in The Bandar Kayangan Lembah Sari Reservoir Rumbai Pesisir District Pekanbaru city Riau Province Ricki Meno P Sinurat; Asmika Harnalin Simarmata; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

AbstractA study aimed to assess the aquatic carrying capacity in the Bandar Kayangan Lembah Sari Reservoir, Rumbai Pesisir District, Pekanbaru City, Riau Province. The carrying capacity was determined based on primary productivity using chlorophyll-a concentration, which is indicating the existence of phytoplankton in waters. This research was conducted April-May 2018. Samples were taken at 4 station, namely Station 1 (inlet from the Merbau River), Station 2 (inlet from Ambang River) Station 3 (transition zone) and Station 4 (around the dam or outlet). In each stations, a sampling point is determind, namely the surface and the water column. Sampling was done three times once/week. Water quality parameters measured were chlorophyll-a concentration, transparency, temperature, pH, dissolved oxygen, free carbon dioxide, nitrate and phosphate. Results shown that chlorophyll-a concentration : 12.54-19.82 µg/L, transparency : 65.17-74.33 cm, temperature : 27.3-29.3 ºC, pH: 5, dissolved oxygen : 4.1-7.69 mg/L,  : 3.32-7.32 mg/L, nitrate : 0.01-0.03 mg/L, and phosphate : 0.01-0.03 mg/L. Based on chlorophyll-a concentration the carrying capacity of Bandar Kayangan Lembah Sari Reservoir was 4,53 tonnes of fish/year.Keywords: Carrying capacity, Bandar Kayangan Reservoir, Chlorophyll-a
Status Trofik Perairan Universitas Riau Provinsi Riau Berdasarkan Trophic state index (TSI) Irfan Anggriawan; Tengku Dahril; Asmika H Simarmata
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

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Abstract

AbstractSeveral activities in the waters around the University of Riau provide input of organic and inorganic materials which have an impact on water quality including nutrient concentrations in the waters. This research has conducted from June to July 2020. The study aim to know  the trophic status of the waters around the Riau University campus based on the Trophic State Index (TSI).  Sampling was carried out on the surface (0.5 m) waters,once/week, durung 2 weeks.  Water quality parameters measured were transparency, total P, and chlorophyll -a, where as supporting water quality parameters such as temperature, pH, and dissolved oxygen (DO). The results shown transparency ranged 34 - 83.5 m, Total P ranged 0.301 - 0.599 mg / L, and chlorophyll-a ranged  0 , 56 - 5.03 µg / L. temperature ranges 30.3 - 31 0C, pH 6, and DO ranges  4.966 - 5.64 mg / L, and TSI value ranged  58,13 - 70,14.  Based on data obtained, it can be concluded that the trophic state of  waters around the Riau University can be category mild eutrophic to severe eutrophic. Keywords: Water quality, Carlson 'Trophic State Index, Mild Eutrophic to severe Eutrophic Riau University
Trophic State of t Tanjung Putus Lake, Kampar District, Riau Based on Trophic Index (TRIX) Christin M. Saragih; Asmika H. Simarmata; Tengku Dahril
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

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Abstract

AbstractMany activities in Tanjung Putus Lake contributes the input of organic and an-organic matter that influence the water quality, especially nutrient concentration in the waters. A research aims to understand the trophic state of the Tanjung Putus Lake’s water based on Vollenweider’s Trophic Index (TRIX), was conducted on March-April 2018. There were 3 stations namely Station 1 (inlet area), Station 2 (the middle of the lake), and Station 3 (outlet area). In each station, there were 2 sampling sites, in the surface and in the middle of water column. Sampling was done three times, once a week. Water quality parameters measured were total posphorus, DIN (Dissolved Inorganic Nitrogen), chlorophyll-a, oxygen saturation, temperature, transparency and pH. Results shown that the total phosphorus: 0.10– 0.14 mg/L, DIN: 0.10 – 0.12 mg/L, chlorophyll-a: 6.41 – 8.50 mg/m3, oxygen saturation: 54.52 – 87.06%, temperature: 30.00 – 32.33°C, transparency: 85.17 – 96.50 cm, pH: 5, and          TRIX: 3.52 – 5.75. Based on the TRIX index value, the water of the Tanjung Putus Lake can be categorized as mesotrophic to eutrophic. Keywords : Water Quality, Oxbow Lake, Mesotrophic, Eutrophic
Longitudinal Gradient of Nitrate (NO 3 - ) And Phosphate (PO 4 3- ) In Air Hitam River Pekanbaru City Mike Satriani; Asmika Harnalin Simarmata; Muhammad Fauzi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol. 9 No. 1 (2022) Edisi 1 Januari s/d Juni 2022
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACTLongitudinal Gradient of nitrate (NO 3 - ) and phosphate (PO 4 3- ) in Air Hitam River was carried out in September 2021. This study aims to determine the Longitudinal Gradient of nitrate and phosphate in the Air Hitam River Pekanbaru City. There were 5 stations, namely Station 1 (upstream), Station 2, 3, 4 (in the middle of river), Station 5 (down stream).  Sampling was done 3 times, once/3 days.  Water quality parameter were measured such as nitrate and phosphate (main parameter) and temperature, transparency, pH, dissolved oxygen, BOD 5 , and free carbondioxide.  Result shown nitrate concentration ranges from 0.1861-0.03181 mg/L, phosphate ranges from 0.2662-0.3208 mg/L, temperature ranges from 28-29ºC, pH ranges from 5.5-6, transparency : 18-28 cm, dissolved oxygen (DO) ranged 6,10-6,18 mg / L, free carbon dioxide (CO 2 ) ranged : 7,99 - 9,32 mg / L, BOD 5  ranged 5,5-6,0 mg /L. The longitudinal gradient of nitrate and phosphate does not show a characteristic pattern in the Air Hitam River. Based on the phosphate concentration, the trophic status of the Air Hitam River is hypereutrophicKeywords: nitrate and phosphate longitudinal gradient, water quality, Air Hitam River
Trophic State of the Pekak Lake, Siak Hulu District, Kampar Regency Based on Trophic State Index Dio M Silalahi; Madju Siagian; Asmika Harnalin Simarmata
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

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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
The Vertical Profile of Phosphate on the Baru Lake in Buluh Cina Village Siak Hulu Subdistrict Kampar District Amat Marustar Siregar; Asmika H. Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

This research has been done on the Baru Lake Buluh Cina Village Siak Hulu SubdistrictDistrict Kampar from March - April 2013. This research aims to understand the vertical profile ofphosphate in this lake. The researh used survey method. Sample were taken horizontally in threestation and vertically in three sampling point. The water quality parameters measured were pH,dissolved oxygen (DO), based on transparancy, temperature and depth.The concentration of phosphate was 0,016 - 0,113 mg/l. The value of pH was 6. Theconcentration of dissolved oxygen (DO) was 2,6 – 5,47 mg/l. Based on transparancy was 47,0 -55,8 cm. Temperature was 29 – 30,3ºC. Depth was 346 – 409 cm. Phosphate consentration insurface was 0,016 – 0,037 mg/l, while in bottom was 0,063 – 0,113 mg/l. The vertical profile ofphosphate in bottom was higher than in the surface. The parameters of water quality were observedstill sustain the aquatic organism life.Keywords: phosphate, vertical profile, Baru Lake
Relationship between Nutrient and Phytoplankton Abudance in the Betung Lake, Betung Village, Pangkalan Kuras Districts, Pelalawan Regency, Riau Province Cindy Fantika Sari; Tengku Dahril; Asmika Harnalin Simarmata
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

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Abstract

AbstractMany activities in the Betung Lake contributed organic matter that affect nitrate and phosphate concentration in water and increasing the abudance of phytoplankton. A research aim to know the relationship between nutrien with phytoplankton abudance in the Betung it was conducted in July-August 2019.There were four sampling stations, namely Station I (trees around the station and floating cage), Station II (oil palm plantations, rubber plantations, tourism and residential areas), Station III (floating cage, rubber plantations and residential areas) and Station IV (tourism and oil palm plantations). In each station, there were two sampling points, in the surface (15 cm) and in 2 Secchi depth (160 cm). Sampling were conducted 4 times, once/week. Water quality parameter measured were nitrate, phosphate, phytoplankton abudance, transparency, temperature, pH, depth, dissolved oxygen and free carbondioxide. The result shown: nitrate 0,0229 - 0,0515  mg/L, phosphate 0,0197 - 0,0431 mg/L, phytoplankton abudance 47.232 - 80.640  Cells/L, dissolved oxygen 3,8 - 6,1  mg/L, free carbondioxide 6,2 - 15,53  mg/L, temperature 28,3 - 29,8 °C, transparency 81,5-84,25 cm,  pH 5 and depth 195-210 cm. The relationship of nitrate and phosphate with phytoplankton abudance was strong. Equation form of relationship between nutrient with phytoplankton abudance Y = 21235,598 + 1308818,706 X1 – 201135,66 X2andr = 0,71 and R = 0,51.Keywords:Batang Nilo River, Floating Cage, Organic Matter, Water Quality, Mesotrophic  
Types and Abundance of Peripyhton in The Plastic Substrate in The Sail River, PekanbaruCity, Riau Province Syada Nopriadi Akbar; Tengku Dahril; 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

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Abstract

ABSTRACTPeriphyton is a sessile microscopic organism that attach on certain substrate. Research aims to determine the type and abundance of periphyton on plastic substrate has been carried out in April-May 2018 in the Sail River. There were three sampling stations, namely S1 (in the upstream), S2 (in the middle) and S3 (in the downstream). Samplings were conducted once/week for a 3 weeks period. The periphyton samples are brushed from the plastic substrates (8x6) cm2. The number of substrates in S1, S2 and S3 were 5, 4, and 3 pieces respectively. Water quality parameter measured were water current, temperature, transparency, pH, dissolved oxygen, free carbon dioxide, nitrate, and phosphate. Results shown that there were 33 types of periphyton present and they were belonged 4 classes, namely Bacillariophyceae (13 species), Cyanophyceae (10species), Chlorophyceae (9 species) andEuglenaphyceae(1species). The abundance of periphyton in the plastic substrate in the S1 was 15,658 cells/cm2, in S2 was 22,095 cells/cm2and in S3 there was 30,799 cells/cm2.The water quality parameters were as follows: water current 0.07-0.69 m/s. transparency 6.03-7.67 cm, temperature 29-300C, dissolved oxygen 4.8-5.7 mg/L, free carbon dioxide13.6-14.6 mg/L, nitrate 0.29-0.38 mg/L, phosphate 0.34-0.54 mg/L. Based on the type of peryphyton present, indicate the trophic state of the Sail River as eutrophic. Keywords: Lotic, sessileorganism, water quality, trophic state
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