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Carrying Capacity Assessment Based on Chlorophyll-a in the Putus Lake, Siak Hulu Sub-District, Kampar District Riau Province Ella Dabella Manja; Tengku Dahril; 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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ABSTRACTThe carrying capacity is defined as the ability of aquatic environment to support the life of organisms in that area. A study aimed to assess the aquatic carrying capacity for extensive fishing in the Putus Lake, Pangkalan Baru Village, Kampar District, Riau. 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 July, 2019. There were 3 stations namely station 1 (inlet area), station 2 (in the middle of lake) and station 3 (tip of lake). In each stations, there were 2 sampling sites, in the surface and in the middle of water column. Sampling was done four times, once week. Water quality parameters measured transparency, temperature, pH, dissolved oxygen, phosphate and nitrate concentration. Results shown that chlorophyll-a concentration: 10.87-13.19 µg/L, transparency: 66.6-74.2cm, temperature: 29-31 oC, pH: 5, dissolved oxygen: 3,72-5,32mg/L, phosphate: 0,03-0,05mg/L and nitrate: 0.02-0.04mg/L. The concentration of chlorophyll-a indicates that the carrying capacity of the Putus Lake for extensive fishing was 1.73 tons/year.Keyword: oxbow lake, extensive fishing, phytoplankton, water quality
Trophic State of the Tajwid Lake, Langgam District, Pelalawan Regency, Riau Province Based on Trophic Index (TRIX) Farida Sri Indah; Asmika Harnalin Simarmata; Madju Siagian
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            There are several human activities such astourism and daily activities are conducted around the Tajwid Lake and thus the pollutant originated from those activities may enter the water and affects the trophic state of the lake. Trophic 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 Tajwid Lake waters based on Vollenweider’s Trophic Index (TRIX), a research has been conducted in March-April 2018. There were three sampling points, namely in the inlet, in the middle of the lake, and in the end of the lake. In each sampling point, water was sampled from the surface (0.5 m) and 2 secchi depth (1.1 m). 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 0.47 - 0.55 m, temperature was 29.3 - 30.7 °C, pH was 5, DIN was 0.17 - 0.23 mg/L, total phosphorus was 0.32 - 0.62 mg/L, oxygen saturation was 59.37 - 82.77 % and chlorophyll-awas 6.03 - 10.71 µg/L.Trophic Index(TRIX) value of the Tajwid Lake was 4.39 - 5.49, and it indicates that the Tajwid Lake was eutrophic.  Keywords : Kampar River, Vollenweider’s Trophic Index, Oxbow Lake, Eutrophic
Carrying Capacity of Tepian Batu Lake in Teratak Buluh Village Siak Hulu District Kampar Regency Riau Province Based on Total-P Theresia Tifany Saragih; Tengku Dahril; 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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AbstractCarrying capacity is defined as the ability of aquatic environment to support the life of organisms in that area. A research aims to determine the carrying capacity and the number of floating net cages which can be operated in Tepian Batu Lake based on total phosphorus concentrations. The research was conducted from June to July 2019. Sampling was determined at 3 locations, namely Station 1 (inlet area), Station 2 (KJA area) and Station 3 (outlet area). Each Station has                 2 sampling points, namely surface and in 2 Secchi depth. Sampling was carried out 3 times once/week. Water quality parameters measured were total phosphorus, depth, transparency, temperature, pH, dissolved oxygen and biochemical oxygen demand. The carrying capacity based on Total-P was analyzed by Beveridge formula (2004). The results showed that Total-P concentration 0.071-0.174 mg/L. Water quality parameters were as follows : depth 354-395.5 cm, transparency 57-63.3 cm, temperature 28.67-30.33oC, pH 5-5.67, DO 3.34-5.18 and BOD5 3.03-8.25 mg/L. The carrying capacity of Tepian Batu Lake was 1.1607 ton/year or the number of floating net cages 4 units. Based on carrying capacity of Tepian Batu Lake, it can be concluded the current number of floating net cages (FNC) has exceeded the reservoir’s carrying capacity. Keywords : Beveridge, Water quality, Biochemical oxygen demand, Dissolved                       oxygen, Floating net cages
The Dynamics of Phytoplankton Abundance Lake Bunter Pangkalan Baru Village Siak Hulu Sub District Kampar District Riau Province Muhammad Edom Rifai; 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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ABSTRACTResearch onthe dynamics of phytoplankton abundance was conducted in July-August 2019 at Lake Bunter Pangkalan Baru village. A study aims to know the dynamics of phytoplankton abundance either spatiallyand temporally. 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 29-32oC, transparency 81-90 cm, pH 5, DO 3.42-8.22 mg/L, CO2 3.99-15.98 mg/L, nitrate 0.022-0.089 mg/L, phosphate 0.014-0.049 mg/L. Phytoplankton abundance at the surface range 317,746-411,070cell/L, and 2 Secchi depth range 284,416-311,080cell/L. Temporal dynamics of phytoplankton abundance was influenced by timewhile spatial dynamics of phytoplankton abundance based on stations or depth. The dynamics of phytoplankton abundance, either spatially and temporally was influenced by water quality such as transparency, nitrate and phosphate.Keywords:Temporal, Spatial, Water Quality, Depth
The Vertical Profile of Dissolved oxygen on the Bakuok Lake in Aursati Village Tambang Subdistrict Kampar District Riau Province Hidayati Hasibuan; Asmika H. Simarmata; Clemens Sihotang
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

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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 dissolved oxygen 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 pH, phosphate, nitrate, dissolved oxygen, free carbon dioxide, 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 dissolved oxygen at the surface: 3,55 mg/L – 5,33 mg/L; in the 11/2 Secchi depth; 2,32 mg/L – 3,75 mg/L; and the bottom of lake: 1,78 mg/L – 2,74 mg/L. The vertical profile of dissolved oxygen showed the concentration increased with the increment of depth. The water quality parameter analyzed were temperature: 29,6oC – 30oC; transparancy 74,3 cm – 93,7 cm; depth: 208 cm – 332 cm; pH: 6, free karbon dioxide: 4,66 mg/L- 15,31 mg/L, nitrate ; 0.01 mg/L – 0.12 mg/L, phosphate: 0.01 mg/L – 0.17 mg/L and phytoplankton ranged from 20.415 sel/L – 39,509 sel/L. The concentration of dissolved oxygen in Bakuok Lake showed the highest decrement, in a general the parts quality still support the aquatic organism life.Keywords: Dissolved oxygen, the vertical profiles, Bakuok Lake
Fertility Status of Pangean Reservoir Pangean District Kuantan Singingi Regency Based on Phytoplankton Miranda Wahyuni Raja Gukguk; Asmika Harnalin Simarmata; Tengku Dahril
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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AbstractPhythoplankton is a parameter used to determine the fertility status of a waters. A research aim to determine types and abundance of phytoplankton in the Pangean Reservoir has been carried out on June-July 2019. There were four sampling sites, namely S1 is in the upstream (a little floating net cage), S2 (lots of floating net cage), S3 (around rubber plantations), S4 (outlet and closest to the DAM). Water sampler were taken once/week for 3 week period. Water quality parameters measured were temperature, brightness, depth, pH, dissolved oxygen, free CO2, nitrate and phosphate.Results shown that there are 48 species of phytoplankton present in the swamp.They were classified into six classes, namely: Cyanophyceae (10 species), Bacillariophyceae (12 species),Euglenophyceae (4 species), Chloropyhceae (18 species), Xanthophyceae (3 species) and Trebouxiophyceae (1 species). The average of phytoplankton abundance was around 560.267 –1.560.785 cells/L. The water quality parameters were as follows : temperatures 29-31 0C, brightness 93-102 cm, depth 248-388 cm ,pH 5, Dissolved Oxygen 5,13-7,17 mg/L, free CO2 19-35 mg/L , nitrate 0,027-0,065 mg/L and phosphate 0,029-0,054 mg/L. Based on the Phythoplankton value, the Pangean reservoir can be categorized as high (eutrophic).Keywords :Phythoplankton, Water quality parameters, Eutrophic
Profil Vertikal Oksigen Terlarut di Zona Lakustrin dan Transisi Waduk Plta Koto Panjang Kabupaten Kampar Provinsi Riau Azmudin '; Asmika H Simarmata; Madju Siagian
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

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The research was conducted from July to September 2013 in PLTA Koto PanjangReservoir Kampar Regency, Riau Province. This research aims to see the vertical profile ofdissolved oxygen in lacustrine and transition zone in the PLTA Koto Panjang reservoir, seethe depth is safe for the concentration of dissolved oxygen for aquaticlife organisms and todetermine the effect of oxygen on the KJA to lacustrine and transition zone . Water sampleswere collected from four station, namely station L1 and L2 in lacustrine zone, T1 and T2 intransition zone. In each station, vertikal sampling is determined based on transparancy namelyin the surface, 2 Secchi depth (3 meters), 4 secchi depth (6 meters), 12 meters and in thebottom. Sample was done three time and sampling interval three week. The water qualityparameters measured were dissolved oxygen, free carbon dioxide, pH, nitrate, phosphate,temperature, depth, transparency, and phytoplankton abundance.The result shown dissolved oxygen in the surface range 7,14 – 7,94 mg/L, 2 secchidepth 5,35 – 7,81 mg/L, 4 secchi depth 3,01 – 4,67 mg/L, 12 meters 0,68 – 2,33 mg/L and inthe bottom 0,14 – 1,37 mg/L. CO2 range 5,32 – 38,62 mg/L, pH 5,50 – 5,83, nitrate 0,24 –0,32 mg/L, 0,02 – 0,14 mg/L, temperature 27,67 – 32,33 0C, depth 9,1 – 23,9 m, transparancy86 – 111,67 cm, phytoplankton abundance range 54.004 – 83.469 cells/L. Based on theverikal profil of dissolved oxygen shown the concentration of dissolved oxygen decreaseswith increasing depth. In the lacustrine zone of dissolved oxygen concentration has anoksix at12 m.Keyword : Dissolved Oxygen, Vertical Profile, PLTA Koto Panjang Reservoir
The Vertical Profile Of Nitrate and Orthophosphate in Pinang Luar Oxbow Lake Buluh China Village Siak Hulu Sub District Kampar District Riau Province Cristy Artha D Sinurat; Madju Siagian; Asmika Harnalin Simarmata
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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This research has been done in Pinang Luar Oxbow Lake from Mei-Juni2013. This research aims to understand the vertical profile of nitrate andorthophosphate in Pinang Luar oxbow lake. The research used survey method.Sample were taken in three stations, namely station 1, station 2 and station 3.Sampling vertical based on depth, at surface, 1,5 secchi disk, 2,5 secchi disk, andin the bottom. The parameters of water quality measured nitrate, orthophosphate,temperature, brightness, depth, current, pH, and dissolved oxygen (DO). Theresult shown concentration of nitrate range of 0,030 - 0,123 mg/l, and theconcentration of orthophosphate range of 0,013 – 0,040 mg/l. The value oftemperature is 310C, transparency range of 65 – 70 cm, depth range of 261,7 –461,7 cm, current range of 2,57 -3,24 cm/second. The concentration of dissolvedoxygen (DO) range of 1,87 – 6,4 mg/l. The value of pH is 6. The vertical profileof nitrate and orthophosphate showed increased with the increment of depth. Theparameters of water quality were observed still support the aquatic organisms.Keywords : nitrate and orthophosphate, the vertical profile, Pinang Luar Oxbow
Thophic State of Perupuk Lake based on Phytoplankton in Kampung Pinang Village Kampar District Riau Province Renny Sibuea; Asmika H Simarmata; Tengku Dahril
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

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AbstractMany activities in the Perupuk Lake contribute the input of organic and anorganic mattet that affects the nutrient concentration and increasing thr growth of phytoplankton. A research about Thophic State of Perupuk Lake by Phytoplankton in Kampung Pinang 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 in this research were temperature, transparency, depth, pH, dissolved oxygen, CO2, nitrate and phosphate. Results shown that there were 38 species of phytoplankton that were belonged to 7 classes, namely Chlorophyceae (16 spesies), Bacillariophyceae (4 spesies), Cyanophyceae (5 spesies), Euglenophyceae (1 spesies), Trebouxiophyceae (4 spesies), Cryptophyceae (1 spesies) dan Zygnematophyceae (7 spesies). The phytoplankton abundance of the Perupuk Lake was 46.481-74.959  cells/L. The most common type of phytoplankton present was Monoraphodium griffithii. Results shown that the temperaturewas 28-30 0C, transparency was 40-54 cm, depth was 1-2 m, pH was 5, dissolved oxygen was 5.02-6.81 mg/L, CO2 was 5.99-15.98 mg/L, nitrate was 0.0125-0.9646 mg/L and phosphate was 0.0553-0.2235mg/L and. Based on the type and abundance of phytoplankton present, it can be concluded that the Perupuk Lake can be categorized as mesotrophic.Keywords : Oxbow Lake, Phytoplankton, Water Quality, Monoraphodium   griffithii, Mesotrophic
Type and Abundance of Phytoplankton in the PT Perkebunan Nusantara V Sei Pagar Reservoir, Perhentian Raja District, Kampar Regency, Riau Province Yuli Suciati; 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 Phytoplankton is a primary producer organism in aquatic ecosystem and it supplies oxygen to the waters through photosynthesis process. A research aim to determine types and abundance of phytoplankton in the PTPN V Sei Pagar Reservoir has been carried out on July-August 2019. Sampling taken at three stations, namely station 1 (inlet area), station 2 (central area) and station 3 (outlet area), once/week. The water quality parameters measured were temperature, transparency, depth, pH, DO, free CO2, nitrate (NO3-) and phosphate (PO43-). Result shown there were 48 species phytoplankton that consist of 10 classes, namely Chlorophyceae (14 species), Cyanophyceae (3 species), Euglenophyceae (6 spesoies), Zygnematophyceae (5 species), Trebouxiophyceae (3 species), Dynophyceae (1 species), Cryptophyceae (1 species), Crysophyceae (1 species), Xantophyceae (1 species) and Bacillariophyceae (13 species). The abundance of phytoplankton in PTPN V Sei Pagar Reservoir ranges from 6,660-33,264 cells/L. The water quality parameters were as follows: transparency 47-54 cm, temperatures 27-29 0C, pH 6, DO 4.77-6.92 mg/L, free CO2 6.65-13.98 mg/L, phosphate 0.018-0.038 mg/L, nitrate 0.905-1.23 mg/L. Based on phytoplankton abundance, PTPN V Sei Pagar Reservoir can be categorized as oligotrophic-mesotrophic. 
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