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Tengku Dahril, Tengku
Jurusan Manajemen Sumberdaya Perairan, Fakultas Perikanan Dan Kelautan, Universitas Riau
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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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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
Concentration of Chlorophyll-a as the Determinant of Trophic Status in the Samsam Swamp, Kandis Sub District, Siak District, Riau Province Silvia Karmila; Clemens Sihotang; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Samsam Swamp is a lowland swamp that receives water from the Samsam River during the rainy season. To understand the trophic status of Samsam Swamp, a present study based on the concentration of chlorophyll-a was conducted in March-April 2016. The method used was a survey method. There were four sampling stations namely Station 1, Station 2, Station 3 and Stasion 4. Samplings were conducted 3 times, once a week. Results shown that concentration of chlorophyll-a was 4.05 – 7.69 μg/L; temperature 28 – 33⁰ C, transparency 28 – 46.9 cm, water pH 4 – 5, orthophosphate 0.37 – 0.65 mg/L, nitrate 0.33 – 0.63 mg/L, dissolved oxygen 3.69 – 4.93 mg/L, free carbon dioxide 4.00 – 11.99 mg/L and depth 39 – 170 cm. Based on the concentration of chlorophyll-a, Rawa Samsam is classified as mesotrophic waters.Keywords: Lowland Swamp, Samsam Swamp, Chlorophyll-a, Trophic Status
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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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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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
Types and abundance of zooplankton in the Tajwid Lake, Langgam Sub-District, Pelalawan District, Riau Province Aspi Mardhana; Tengku Dahril; 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

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Tajwid Lake is an oxbow lake that receives water from the Kampar Riverduring rainy season. To understand the types and abundance of zooplanktonpresent in that lake, a study has been conducted in February 2016. There were 3stations, Station 1 is in the inlet, Station 2 is in the middle of the lake and Station3 is in the outlet. Samplings were conducted 3 times, once/week. Results shownthat there are 20 species of zooplankton present in the lake. They were classifiedinto four classes, namely: 3 Rotifer species, 4 Crustacean species, 2 Sarcodinaspecies, 2 Cladocera species, and 2 Monogononta species, 1 Branchiopodaspecies, 1 Ciliata species, 1 Copepoda species, 1 Insecta species, 1 Phyllopodaspecies, 1 Maxillopoda species, 1 Granulureticulosa species. The average ofzooplankton abundance was around 1,582-3,990 ind/L, species diversity index(H’) was 3.95-4.10, uniformity index (E) was 1.15-1.25 and dominance index (C)was 0.08-0.07, indicated there is not a dominant species in the lake. While thewater quality parameters were as follows: temperature 290C, transparency 33-51cm, depth 600-1,200 cm, pH 5, DO 4.9-6 mg/L, and CO2 8.2-8.6 mg/L. Thevalues of water quality parameters indicate that the aquatic environment in theTajwid lake is good and is able to support the life of aquatic organisms, especiallyzooplankton.Keyword : Zooplankton, Tajwid Lake, Oxbow 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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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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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
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

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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
Trophic State of The Lubuk Siam Lake, Based on Nygaard Index Fella Ferdiana; Madju Siagian; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTNygaard Index can be used to determine the trophic state of waters. Calculation of this index is based on the number of phytoplankton species in these following groups, namely  Desmidiaceae, Myxophyceae, Chlorococcales, Centric diatom, Pennate diatom and Euglenophyceae. To understand the trophic state of the Lubuk Siam lake, a research has been conducted in February - March 2017. There were three sampling stations, namely station 1 (inlet area), station 2 (the middle of the lake) and station 3 (outlet area). In each station there were three sampling points, in the surface, 2 secchi depth, and 3 secchi depth. Sampling were conducted 3 times, once/week. Water quality parameters measured were phytoplankton (species and abundance), transparency, temperature, pH, nitrate, phosphate, Dissolved oxygen and free carbon dioxide. Results shown that there are 53 species of phytoplankton present, namely Desmidiaceae class (11 species), Myxophyceae class (6 species), Chlorococcales ordo (23 species), Centric   diatom ordo (6 species), Pennate diatom (5 species) and Euglenophyceae division (2 species). The water quality parameters were as follows: transparency 63-89 cm, temperature 28.5-30.53 0C, pH 6.83-7.27, nitrate 0.7-0.17 mg/L, phosphate 0.12-0.16 mg/L, Dissolve oxygen 4.10-7.84 mg/L, free carbon dioxide 5.29-15.98 mg/L. Nygaard Index value of the Lubuk Siam Lake was 2.1 – 2.83, and it can be  categorized as mesotrophic to eutrophic. Keywords: Lubuk Siam lake, Nygaard Index, phytoplankton, trophic state
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
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 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
Co-Authors Agfin Septian Yogi Pratama Agustri Minggu Samosir Minggu Samosir Annisa Amaliah Arico Candra Tambunan Asmika Harnalin Simarmata Aspi Mardhana Ayu Dwi Utami Bennawaty Bennawaty Beta Posmarito Pardede Br Sitorus, Chrisna Heni Nozelina Buala Ziduhu Laia Budijono, Budijono Bukit, Friska Lesmana Beru Christin M. Saragih Cindy Fantika Sari Clara Novicasari Br Surbakti Clarissa, Enny Clemens Sihotang Darwinda Darwinda Debora Utami Defi Fitriya Dalimunthe Deni Efizon Desi, Ria Irawan Dumaria, Roma Efawani Efawani Efawani Efawani Efredy Tamba Eko Prianto, Eko Eko Simatupang Ella Dabella Manja Esra Febryanti, Esra Ester Romastika Turnip Fadliyanti, Refo Fahrezzy, Reggi Fajar Restuhadi Fella Ferdiana Friska Junita Sirait Gaol, Melinda Juliana Lumban Gultom, Zogi Tri Harjoyudanto, Yudho Harmelita Harmelita Harmelita, Harmelita Hartini, Fitri Hidayatunnisah, Putry Hikma, Murbeni Intan S, Yeni Debora Irfan Anggriawan Jiboro, Mega Rani Lauri Sahat Parulian M M Sinaga, Saut M. Arifan Fadhilla M Madju Siagian Madju Siagian Manurung, Dostiarni Minsa Karolina Meria Ulfa Merlin Evan Olivia Hutauruk Miranda Wahyuni Raja Gukguk Muchlizar Muchlizar Muhammad Edom Rifai Muhammad Ichsan Mulyadi Mujahidah Ulya Munthe, Ayaki Tomala Mustika Firdaus Muzdalifah ' Nadira, Ismi Naziruddin Naziruddin Nengsi, Agustina Surya Nitami S.M Sihombing Nugroho, Rio Cahyo Prakoso, Dodo Putra, Aldo Pratama Rahfiani, Wulan Rekha Mutiara Manurung Renny Sibuea Ricki Meno P Sinurat Ridwan Manda Putra Rina D'rita Sibagariang Rina D’rita Sibagariang Rivco Hastwoyundra Roma Dumaria Rusmala Sari Septriza Radella Sibagariang, Rina Sibuea, Renny Sihombing, Djob Fernadi Sihombing, Evi Stevani Silfia Nurjijar Silvia Karmila Simangunsong, Perdinan Simatupang, Dewi Sitohang, Dohar Syada Nopriadi Akbar Tamba, Niger Efafras Theresia Tifany Saragih Tiara Priskila Tri Wahyudi Tuti Maisarah Br. Siregar Windarti Windarti Wulan Rahfiani Yohana Nelly Destina Siboro Yudho Harjoyudanto Yuli Suciati Yuliati Yuliati Yuni Rahayu Yuris Fiestaria Naibaho Zurkartika '