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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

Types and abundance of phytoplankton in the Samsam Peat Swamp, Kandis Sub-District, Siak District, Riau Province Zurkartika '; Madju Siagian; 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 located in the peat swamp area and flooded during rainy season. To understand the types and abundance of phytoplankton present in that swamp, a study has been conducted in March 2016. There were four sampling sites, namely S1 is in the upstream (almost no human activity); S2 ( around palm plantation); S3 (around the newly planted palm plantation) and S4 (far from palm plantation). Water sampler were taken once/week for 3 week period. Results shown that there are 21 species of phytoplankton present in the swamp. They were classified into three classes, `namely: Bacillariophyceae (12 species), Chloropyhceae (6 species) and Cyanophyceae (3 species). The average of phytoplankton abundance was around 2,804 – 4,135 cells/L. While the water quality parameters were as follows: temperature: 30 - 320C, transparency: 30 - 40 cm, depth: 83 - 114 cm, pH: 4 - 5, CO2: 8.66 - 9.32 mg/L, DO: 3.96 - 4.65mg/L, nitrate: 0.45 - 0.58 mg/L and phosphate: 0.36 - 0.56 mg/L. Based on the abundance of pyhtoplankton, it can be concluded that the Samsam peat swamp water can be categorized as oligotrophic.Keyword : Phytoplankton, Samsam Peat Swamp, Water Quality and Oligotrophic

Relationship between Total Phosphorus and Chloropyll-a in the PLTA Koto Panjang Reservoir in Batu Bersurat village, XIII Koto Kampar Districts, Kampar Regency, Riau Province Nitami S.M Sihombing; Tengku Dahril; Madju Siagian
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 Several activities in the PLTA Koto Panjang Reservoir in Batu Bersurat, have provided organic and inorganic inputs to the waters, with increased phosphate concentrations and have influenced phytoplankton growth and chlorophyll-a concentrations in the waters. This research aims to understand the relationship between Total P and Chloropyll-a in the PLTA Koto Panjang Reservoir in Batu Bersurat village and it was conducted in June-July 2019. Sampling was determined at 3 locations namely Station I (KJA area), Station II (areas which are not much affected by activities) and Station III (Tourism and plantation areas). Each station has 3 sampling points namely surface, in 2 Secchi depthand in 4 Secchi depth. Sampling was carried out 4 times with a time interval of a week. Water quality parameters measured in this study are Total P, Chlorophyll-a, Nitrate, Transparency, Temperature, pH, Dissolved Oxygen and free carbon dioxide. The water quality parameter values were as follows: total phosphorus 0,205-0,247 mg/L, chlorophyll-a4,65-6,17 µg/L, dissolved oxygen 6,35-6,88 mg/L, free carbon dioxide 5-12,99 mg/L, temperature 29-31 oC, transparency 145,1-187,5 cm, pH 5-6,25 dan nitrate 0,06-0,08 mg/L. Relationship between total phosphorus with Chlorophyll-a retrieved value r of 0,7023-0,7643. Based on the correlation coefficient, the relationship of total phosphorus with Chlorophyll-a in PLTA Koto Panjang Reservoir in Batu Bersurat village in power (non linier) is strongly. Keywords: Total phosphorus; Chlorophyll-a, Reservoir Puddles, depth

The Vertical Profiles of Phytoplankton in Danau Pinang Luar Buluh CinaVillage, Siak Hulu Sub- District, District Kampar, Riau Province Sudirman Sihombing; Madju siagian; Clemens Sihotang
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 was conducted on the Danau Pinang Luar Buluh Cina Village Siak HuluSubdistrict District Kampar Riau Province in April - Mei 2013 and aims to understand thephytoplankton vertical rofil in the Pinang Luar Lake. There were 3 stations, station 1 isincomingwater area, Station 2 is agencies lake area. Station 3 is end of the lake area. Samplings wereconducted 3 times, once/week.This research aims to determine the vertical profile ofphytoplankton of Danau Pinang Luar.The results showed 24 species of phytoplankton were classified into four classes, namely:Chlorophyceae (11 species), Cyanophyceae (7 species),Bacillariophyceae (5 species), Euglenophyceae (1 species). Average phytoplankton abundancearound 61578 - 495112 cells/l, species diversity index (H ') of phytoplankton around 4,21 - 4,51,uniformity index around 0,87 - 0,93 and dominance index (C) of about 0,046- 0,063. While thewater quality parameters such as temperature of 31°C, the brightness around 65 - 70 cm, a depth ofapproximately 261,7 - 461.7 cm, pH 6, Dissolved Oxygen approximately 2,93 – 6,4 mg/l, free ofcarbon dioxide around 3,96 – 11,88 mg/l, Nitrate around 0,01-0,02 mg/l, Phosphate approximately0,023 mg/l. Based on the abundance of phytoplankton, concluded that Danau Pinang Luar Outerrelatively moderate fertility levels.Keyword : Phytoplankton, Buluh Cina Village, Danau Pinang Luar

Types and Abundance of Phytoperiphyton in the Plastic Substrate placed in the Putus Lake, SiakHulu Sub-District, Kampar District, Riau Province Yuni Rahayu; Madju Siagian; 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

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AbstractPhytoperiphyton is sessile microscopic organisms that attach on the substrates. A research aims to determine the type and abundance of phytoperiphyton on plastic substrate has been conducted on July-August 2019. There were three sampling stations, namely S1 (inlet area), S2 (middle of the lake), and S3 (the ends of lake). In each station, there were 2 sampling sites, in the surface (20 cm depth) and in the middle of water column (120 cm depth). The number of plastic substrates (8 x 3 cm2) in each station was 24 pieces.Samplingswere conducted once/week for a three weeks period. The phytoperiphytonwas sampledby brushing8 substrates/ sampling. Water quality parameters measured were temperature, transparency, depth, pH, dissolved oxygen, free carbon dioxide, nitrate and phosphate. Results shown that there were 29 types of phytoperiphyton and they were belonged to 4 classes, Bacillariophyceae (14 species), Chlorophyceae (11 species), Cyanophyceae (3 species) and Chrysophyceae (1 species). The abundance of phytoperiphyton in the plastic substrates placed in the S1 was 42,000 cells/cm2, in S2 was 29,285cells/cm2 and in S3 was34,195cells/cm2. The water quality parameters were as follows: temperature 29-300C, pH 5, transparency 64.1-71 cm, depth 2.46 – 3.33 m, dissolved oxygen 3.67– 4.90 mg/L, free carbon dioxide 3.45-8.11 mg/L, nitrate 0.026-0.047 mg/L and phosphate 0.035-0.058 mg/L.Water quality data indicate that the water of the PutusLakeis suitable to support the life of phytoperiphyton.Keywords : Oxbow Lake,Sessile Organism,Bacillariophyceae, Chrysophyceae

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

Type and abundance of phytoperiphyton in the plastic substrate placed in the Bunter Lake, Pangkalan Baru Village,Siak Hulu Sub-districts, Kampar Districts, Riau Province Annisa Amaliah; Madju Siagian; 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

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AbstractPhytoperiphyton is a microscopic organism that attach on certain substrate. Research aims to determine the type and abundance of phytoperiphyton on plastic substrate has been carried out in June- July 2019 in the Bunter Lake. There were three sampling stations, namely Station 1 (inlet), Station 2 (in the middle of the lake) and Station 3 (in the end of the lake ). The number of substrates in each station were 30 pieces. Sampling were conducted once/week for a 3 weeks period. The phytoperiphyton samples are brushed from the plastic substrate (8x3 cm), 10 plastic substrates/ stations. Water samples were collected from 2 different depth namely in the surface (20 cm) and 2 secchi depth (180 cm). Water quality parameters measured were temperature, transparancy, pH, dissolved oxygen, free carbon dioxide, nitrate and phosphate. Results shown that there were 28 types of phytoperiphyton present and they were belonged to 3 classes, namely Chlorophyceae (15 species), Bacillariophyceae (10 species), and Cyanophyceae (3 species). The abundance of phytoperiphyton were 8,236- 19,581 cells/cm2. The water quality parameters were as follows: temperature was 29.7-30oC, transparancy was 78.33- 83.67 cm, dissolved oxygen was4.07-6.13 mg/L, pH was 5, free carbon dioxide was 7.32-13.31 mg/L, nitrate was 0.05413-0.10267 mg/L and phosphate was0.02137-0.03983 mg/L. Based on type of phytoperiphyton, trophic state of Bunter Lake can be categorized as eutrophic.Keywords : Lentic, Sessile Organism, Water Quality, Trophic State,Oxbow Lake

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

The Vertical Profiles of Phytoplankton in Danau Pinang Luar Buluh CinaVillage, Siak Hulu Sub- District, District Kampar, Riau Province Sudirman Sihombing; Madju Siagian; Clemens Sihotang
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 was conducted on the Danau Pinang Luar Buluh Cina Village Siak HuluSubdistrict District Kampar Riau Province in April - Mei 2013 and aims to understand thephytoplankton vertical rofil in the Pinang Luar Lake. There were 3 stations, station 1 isincomingwater area, Station 2 is agencies lake area. Station 3 is end of the lake area. Samplings wereconducted 3 times, once/week.This research aims to determine the vertical profile ofphytoplankton of Danau Pinang Luar.The results showed 24 species of phytoplankton were classified into four classes, namely:Chlorophyceae (11 species), Cyanophyceae (7 species),Bacillariophyceae (5 species), Euglenophyceae (1 species). Average phytoplankton abundancearound 61578 - 495112 cells/l, species diversity index (H ') of phytoplankton around 4,21 - 4,51,uniformity index around 0,87 - 0,93 and dominance index (C) of about 0,046- 0,063. While thewater quality parameters such as temperature of 31°C, the brightness around 65 - 70 cm, a depth ofapproximately 261,7 - 461.7 cm, pH 6, Dissolved Oxygen approximately 2,93 – 6,4 mg/l, free ofcarbon dioxide around 3,96 – 11,88 mg/l, Nitrate around 0,01-0,02 mg/l, Phosphate approximately0,023 mg/l. Based on the abundance of phytoplankton, concluded that Danau Pinang Luar Outerrelatively moderate fertility levels.Keyword : Phytoplankton, Buluh Cina Village, Danau Pinang Luar

Relationship between Organic Matter and Productivity of the Bakuok Lake Aur Sati Village, Tambang District, Kampar Regency, Riau Province Natasya Margareth Pasaribu; Asmika Harnalin Simarmata; Madju Siagian
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 Several activities in the Bakuok Lake contribute the input of organic and inorganic matters to the waters, and thus increase the concentration of nitrate and phosphate in the water. A research aims to understand the relationship between organic matter and nutrients (Nitrate and Phosphate) in the Bakuok Lake has been carried out in June-July 2019. There were three stations namely station 1 (around the plantation area), station 2 (in the middle of the lake) and station 3 (around the net cage area). Each station has 2 sampling points namely the surface and 2 Secchi depth. Sampling was done 3 times, once/week. Water quality parameters measured were biochemical oxygen demand, dissolved oxygen, free carbon dioxide, nitrate, phosphate, temperature, transparency, pH, and ammonia. The water quality value were as follows: biochemical oxygen demand 4.80-6.32 mg/L, dissolved oxygen 6.57-7.54 mg/L, carbon dioxide 9.37-13.86 mg/L, nitrate 0.0207-0.0319 mg/L, phosphate 0.0385-0.0553 mg/L, temperature 29.3-31.3oC, transparency 58-87 cm, pH 5, and ammonia 0.0132-0.0165 mg/L. The relationship between organic matter with nitrate and phospate was 0.96 or very strong.Keywords: Oxbow Lake, Nutrients, Water Quality

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