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Madju Siagian
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The Vertical Profile Of Phosphate In Pinang Dalam Lake Buluh China Village Siak Hulu Sub District Kampar District Riau Province Artauli Sigalingging; Madju Siagian; 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 study has been done in Pinang Dalam Oxbow Lake from January-February 2014. This research aims to understand the vertical profile of phosphatein Pinang Dalam oxbow lake. The research used survey method. The sample’swere taken from three station, the first station were at inlet, the second stationwere at middle of lake and the third station were at the end of lake. The measuringquality water parameters were depth, transparency, temperature, pH, dissolvedoxygen (DO), carbon dioxide and nitrate. Sampling vertical based ontransparency, namely at surface, 11/2Secchi depth, 21/2Secchi depth, and in thebottom of lake. The result shown the concentration of phosphate at the surface:0.03-0.04 Mg/L; in the 11/2Secchi depth: 0.07-0.09 Mg/L; in the 21/2Secchi depth:0.12-0.15 Mg/L and the bottom of lake: 0.15-0.19 Mg/L. The vertical profile ofphosphate showed the concentration increased with the increment of depth. Thewater quality parameter analyzed were temperature: 28oC–28.34oC; transparancy52.5-54.34 cm; depth: 180.67–429 cm; pH: 5; dissolved oxygen (DO): 1.64-5.88Mg/L; carbon dioxide: 6.79–14.65 Mg/L; nitrate: 0.01-0.13 Mg/L, andphytoplankton abudance: 3523363.7-4293075.48 cel/l. The concentration ofphosphate in Pinang Dalam Lake showed the tropic status was mesotropic and allthe water quality still support the aquatic organisms life.Keywords : Phosphate, the vertical profile, Pinang Dalam Lake
Chlorophyll-ɑ Concentration in the periphyton attached in the PVC substrate submerged in the Air Hitam River, Pekanbaru,Riau Province Muhammad Ichsan Mulyadi; 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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                                             ABSTRACTPeriphyton is primary producer in the aquatic environment. A research aims to determine the chlorophyll-ɑ concentration contained in the  periphyton that are attached in the submerged PVC substrate has been carried out in April-May 2018 in the Air Hitam 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 were brushed from the PVC substrates (8 x 6) cm2. Water quality parameters measured were current speed,temperature, transparency, pH, dissolved oxygen, free carbon dioxide, nitrate,and phosphate content. Results shown that the chlorophyll-ɑ concentration of the periphytonfrom   S1was 1,380 μg/cm²,in S2 was 1,480 μg/cm² and in the S3  was2,026 μg/cm². The water quality parameters were as follows: water current 0.08-0.46 m/s, transparency 18-29 cm, temperature 29-29.30C, dissolved oxygen 3,43-3,56 mg/L, free carbon dioxide 6.2-8.3 mg/L, nitrate 0.29-0.38 mg/L and  phosphate 0.34-0.54 mg/L.Keywords: water quality, trophic state ,oligotrophic, artificial substrate
Types and Abundance of Peripyhton in the Pipe Placed in The Air Hitam River, Pekanbaru City, Riau Province Naziruddin Naziruddin; Tengku Dahril; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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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 Pipe substrate has been carried out in April-May 2018 in the Air Hitam 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 pipe substrates (8 x 6) 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 35 types of periphyton present and they were belonged 5 classes, namely Bacillariophyceae (17 species), Cyanophyceae (4 species), Chlorophyceae (10species), Euglenaphyceae (3 species) and Xantophyceae (1 species) . The abundance of periphyton in the pipe substrate in the S1 was 35,609 cells/cm2, in S2 was 66,989 cells/cm2and in S3 there was 140,470 cells/cm2. The water quality parameters were as follows: water current 0.08-0.46 m/s, transparency:18-29 cm, temperature 29-29,30C, dissolved oxygen 3.43-3.56 mg/L, free carbon dioxide1 6,2-7,9 mg/L, nitrate 0.302-0.529 mg/L, phosphate 0.348-0.542 mg/L. Keywords: lotic, sessileorganism, water quality,plastic substrats
Relationship Between Water Quality andthePhytoplankton Abundanceof the Tanjung Balam Lake waters, Kampar District, Riau Province Mustika Firdaus; Madju Siagian; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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                                            ABSTRACTTanjung Balam Lake receive organic and anorganic matter from palm plantation and the water from the Kampar River. To understand the relationship between water quality and the phytoplankton abundanceof the Tanjung Balam Lake, a research has been conducted in June – July 2019. There were three sampling points, namely in the inlet, in the middle of the lake and in the end of lake. In each sampling point, the water was sampled from the surface and 2 Secchi depth. Samplings were conducted 3 times, once/week. Water quality parameters measured were temperature, transparency, depth, pH,dissolved oxygen, CO2, nitrate, phosphate and the abundance of phytoplankton. Results shown that the temperature was 28-30.30C, transparency was 49-52 cm, depth was 137.7-236.7 cm, pH was 5, dissolved oxygen was 4.03-6.57 mg/L, CO2 was 3.83-6.13 mg/L, nitrate was 0.016-0.030 mg/L and phosphate was 0.083-0.096 mg/L. There were 62 species of phytoplankton, namely Chlorophyceae (24 species), Trebouxiophyceae (5 species), Zygnematophyceae (4 species), Euglenophyceae (14 species), Bacillariophyceae (10 species), Chyanophyceae (4 species) and Cryptophyceae (1 species). The phytoplankton abundance in the lake was 431,394-891,640 cells/L. Data analysis indicate that any changing in water quality parameter will affect the abundance of phytoplankton. Keywords:Kampar River, Chlorophyceae, Cryptophyceae,Nitrate Concentration, Oxbow Lake
Trophic State of The Bandar Kayangan Lembah Sari Reservoir, Rumbai Pesisir Sub-District, Pekanbaru Based on TSI (Trophic State Index) Friska Junita Sirait; Madju Siagian; Tengku Dahril 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 Trophic State Index can be used to determine the trophic state of waters. The TSI was calculated based on physical, chemical and biological parameters and it is more representative for analyzing the trophical state of waters. To understand the trophic state of the Bandar Kayangan Lembah Sari Reservoir, a research has been conducted in March - April 2018. There were four sampling stations, namely station 1 (in the inlet, from the Ambang River), station 2 (in the inlet from the Merbau River), station 3 (in the middle of the lake) and station 4 (in the dam). In each station there were three sampling points, in the surface, in the middle of water column, and in the base of the river. Sampling were conducted 3 times, once/week. Water quality parameter measured were chlorophyll-a, total phosphorus, transparency, temperature, pH, dissolved oxygen, and free carbondioxide. Trophic status was calculated based on Carlson’s Trophic State Index (TSI). The water quality parameter values were as follows: transparency 65.17-74.33 cm, total phosphorus 0.20-0.54 mg/L, chlorophyll-a 13.76-19.56 μg/L, depth 148.67-485 cm, temperature 27.33-29.33oC, pH 5, dissolved oxygen 4.10-7.69 mg/L, and free carbondioxide 3.32-7.32 mg/L. Trophic State Index value of the Bandar Kayangan Lembah Sari Reservoir was 68.17-72.25, and it indicates that the Bandar Kayangan water is inmedium to heavy eutrophic condition. Keywords:Ambang River, Merbau River, Carlson’sTrophic State Index, Water Quality
Types and abundance of zooplankton in the SamsamSwamp, Kandis Sub-District, Siak District, Riau Province Muzdalifah '; 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. A research aims to understand the type and abundance of zooplankton in the Samsam swamp, has been carried out in March 2016. There were 4 stations, 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). Sampling were conducted 3 times, once/week. Results shown that zooplankton in the Samsam Swamp was consisted of 5 Classes (14 species). The most common species was crustacean (4 species). The average of zooplankton abundance was around 194-833 organisms/L, species diversity index (H’) was 2,573-3,596, equatibility index (E) was 0.66-0.92, and dominance index (C) was 0.089-0.274. 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:3.96-4.65 mg/L, nitrate:0.45-0.58 mg/L and phosphate:0.36-0.56 mg/L. Based on data obtained it can be concluded that zooplankton diversity was medium, nodominant speciesand the water quality is able to support the life of aquatic organisms.Keyword :Zooplankton, Kandis Sub-District, Samsam Swamp
Carrying Capacity Based on Chlorophyll-ain The Betung Lake Betung Village PangkalanKuras Sub-districtPelalawan District Riau Province Diah Sari Ninggrum; Asmika Harnalin Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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AbstractCarrying capacity is defined as the ability of aquatic environment to support the life of organism in that area. A study aimed to assess the aquatic carrying capacity for extensive fishing in the Betung lake, Betung Village, Pangkalan Kuras Sub-district Pelalawan District, Riau Province. The carrying capacity was determined based on primary productivity using chlorophyll-aconcentration.This research was conducted July-August 2019. 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 (15 cm) and 2 Secchi (160 cm) depth. Sampling was done three times, once a week. Water quality parameters measured werechlorophyll-a, transparency, temperature, pH, dissolved oxygen, CO2, nitrate and phosphate concentration. Results shown that chlorophyll-a:17.81-26.73 µg/L, transparency : 81.3-84 cm, temperature : 28.3-29.7ºC, pH: 5, dissolved oxygen : 3.87-6.12 mg/L, CO2 : 6.27-15.42 mg/L,nitrate : 0.02-0.05 mg/L, and phosphate : 0.02-0.04 mg/L. Based on chlorophyll-a concentration, the carrying capacity in Betung Lake was 1.61 tons/fish/year.Keyword: Oxbow lake, Primary Productivity, and Water quality
Trophic State of The Tajwid Lake, Langgam District, Pelalawan Regency, Riau Province Based on Trophic State Index Adithia Netanyahu Purba; Madju Siagian; Asmika H Simarmata2
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 Many activities in the Tajwid 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 Tajwid Lake based on TSI has been conducted in March - April 2018. There were two sampling points, in the surface (0.5 m) and 2 secchi depth (1.1 m). Sampling were conducted 3 times, once/week. Water quality parameter measured were total phosphorus, chlorophyll - a, transparancy, temperature, dissolved oxygen, and pH. Results shown that the transparancy was 0.47 - 0.55 m, total phosphorus 0.323      - 0.624 mg/L, chlorophyll - a6.03-10.71 µg/L, temperature 29.5 - 30.3 0C, pH 5, and dissolved oxygen 4.96 - 5,66 mg/L. TSI(Trophic State Index) value of The Tajwid Lake was 70.01 - 72.19, and it indicates that the Tajwid Lake water is in hypereutrophic.Keywords: Water Quality, Carlson’ Trophic State Index, Hypereutrophic,Lake
Vertical profiles of phosphate in the lacustrine and transition zones in the Koto Panjang Reservoir, XIII Koto Kampar Districts, Kampar Regency, Riau Province. Sistim Wehalo; Asmika H. Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Phosphate is a nutrient that plays as a limiting factor for aquatic organisms and it may affect the aquatic productivity. This research aims to understand the vertical profile of phosphate in the lacustrine and transition zones of the Koto Panjang Reservoir. This research was conducted in September-October 2015. A survey method was applied in this research. Water samplings were conducted 3 times, once/2 weeks. The sampling areas were in the lacustrine and transition zones, two stations in each zone (L1; L2; T1 and T2). Phosphate concentration was analysed based on APHA (2012). Data obtained were then analyzed using a two way ANOVA. Results shown that the surface phosphate concentration in the lacustrine zone was 0.13 mg/L, while that of the transition zone was 0.15 mg/L. Phosphate concentration in the bottom area was slightly higher, it was 0.18 mg/L in the lacustrine and 0.19 mg/L in the transition zone. Result of statistical analysis indicate that there was no difference in the surface’s and bottom’s phosphate concentration in both sampling areas. Based on data obtained, it can be concluded that the Koto Panjang reservoir can be categorized as mesotrophic.Keywords: Koto Panjang reservoir, phosphate, lacustrine and transition
Phytoplankton Composition in The Koto Panjang Dam, Kampar Regency Riau Rina Maria; Asmika H Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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AbstractThe increment of the number of floating cages in the Koto Panjang Dam may result on increment of organic materials in the water and thus affect the presence of phytoplankton. A study aims to understand the phytoplankton composition around the cages area was conducted on April-May 2018. Samplings were conducted 3 times, once/week. There were 3 stations namely Station 1 area with 100-150 floating cages, Station 2 area with 200-300 floating cages and Station 3 area with 946 floating cages.   In each station, there were 3 sampling points, in the surface, in 2 Secchi depth, and in 4 Secchi depth. Water quality parameters measured were transparency, temperature, pH, dissolved oxygen, free carbon dioxide, nitrate and phosphate. Results shown that there were 8 genera presents, namely Chlorophyceae (29 species), Zygnematophyceae (17 species), Trebuoxiophyceae (2 species), Cyanophyceae (14 species), Bacillariophyceae (14 species), Meidiophyceae (1 species), Cryptophyceae (1 species) and Euglenophyceae (1 species). They were consisted of 79 phytoplankton species. As the number of cages increase, types of phytoplankton present decrease. However, there is relationship between cages and abundance. As the number of cages increase, phytoplankton abundance also increase. The highest abundance was 72,468 cells/L (Station 3) and the lowest was 24,580 cells/L (Station 1). Other water quality parameter measured were transparency : 101-138 cm;       temperature : 28.3-31.70C; pH : 5.0-5.5; dissolved oxygen : 2.21-7.23 mg/L;    free carbon dioxide : 11.09-26.93 mg/L; nitrate : 0.06-0.17 mg/L and      phosphate : 0.07-0.26 mg/L. Based on data obtained, it can be concluded trophic state of Koto Panjang reservoir was categorized as eutrophic. Keyword: Koto Panjang Reservoir, Water quality, Organic Matter, Eutrophic
Co-Authors Abdi Doly Tarigan Adithia Netanyahu Purba Agfin Septian Yogi Pratama Agung Prabowo Amat M. Siregar Amat Marustar Siregar Annisa Amaliah Artauli Sigalingging Arum Fuji R Manurung Asmika Harnalin Simarmata Asmika Simarmata Aspi Mardhana Ayunanda Mustika Sari Azmudin ' Berton Panjaitan Clemens Sihotang Cristy Artha D Sinurat Dameyana S.C Lumban Tobing Diah Sari Ninggrum Dio M Silalahi Erwin David Sianipar Esmi Yanti br Sinaga Ester Romastika Turnip Farida Sri Indah Fella Ferdiana Friska Junita Sirait Hosianna Sitorus Julianti ' Lauri Sahat Parulian M Leonardo Windra Sinurat Magdalena Fitriani Daeli Meria Ulfa Muhammad Ichsan Mulyadi Muhammad Zaki Mujahidah Ulya Mustika Firdaus Muzdalifah ' Natasya Margareth Pasaribu Naziruddin Naziruddin Nitami S.M Sihombing Prian Mintaito Simangunsong Rahmi Hidayana Hasibuan Rati Muspa Rensi Adolina Damanik Rina Maria Rusmala Sari Santo Rio Pakpahan Santun Tua Siburian Satria Yunda Sistim Wehalo Sudirman Sihombing Tengku Dahril, Tengku Valentina Manurung Yeni Handayani Yohana Nelly Destina Siboro Yudi Asriansyah Yuni Rahayu Zaini Hafiz Zurkartika '