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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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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

Primary Productivity of Tanjung Balam Lake, Buluh Cina Village, Siak Hulu Sub-Regency, Kampar Regency, Riau Province Based on Oxygen Method Rusmala Sari; Tengku Dahril; 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 Tanjung Balam lake is an oxbow lake located beside the Kampar River and receive water from that river. A research aims to understand the primary productivity based on oxygen method and the thropic statebased on carbon concentration (gC/m3/day) was conducted in June-July 2019. There were three sampling stations, station 1 (inlet), station 2 (middle) and station 3 (outlet). In each station there was 2 sampling points, in the surfase (15 cm) and in the water column (90 cm). Water quality parametersmeasurd were transparency, temperature, pH, dissolved oxygen, CO2 free, nitrate, phospate concentration and phytoplankton abundance. Results shown that the primary productivity was 488.8889-681.9444 gC/m3/day, transparency was 49-54 cm, temperature was 28-300C, pH was 5, dissolved oxygen was 4.03-6.56 mg/L, CO2 free was 7,92-14,59 mg/L, nitrate was 0.015-0.029 mg/L, phospate was 0.082-0.107 mg/L and phytoplankton abundance was 845,502-1,037,218 cells/L. Based on primary productivity concentration, this lake can be categorize as mesothropic condition. Keywords:Oxbow Lake, Water Quality, Phytoplankton, Mesothropic

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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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

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.

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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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

The Vertical Profile Of Nitrate in Pinang Dalam Oxbow Lake Buluh China Village Siak Hulu Sub District Kampar District Riau Province Muhammad Zaki; Madju Siagian; Asmika Harnalin Simarmata
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 in Pinang Dalam Oxbow Lake from Maret 2014. Thisresearch aims to understand the vertical profile of nitrate in Pinang Dalam oxbow lake. Theresearch used survey method. Sample were taken in three stations, namely station 1, station 2 andstation 3. Sampling vertical based transparency, at surface, 2,5 secchi disk, and in the bottom.The parameters of water quality measured nitrate, phosphate, temperature, transparancy, depth,pH, free carbon dioxide (CO) and dissolved oxygen (DO). The result shown nitrate range 0,020- 0,337 mg/L, phosphate 0,037 – 0,710 mg/L, temperature 28,3-28,7 oC, transparancy 27,3-28,5cm, depth 145-302 cm, pH 5, free carbon dioxide 5,33 - 9,32 mg/L, and dissolved oxygen 2,40- 6,83 mg/L. The vertical profile of nitrate showed increased with the increment of depth. Theparameters of water quality were observed still support the aquatic organisms.Keywords : nitrate, the vertical profile, Pinang Dalam Oxbow

Nitrate Concentration from the Water around the Floating Cage fish culture area and from the area with no cage, in the DAM Site PLTA Koto Panjang Erwin David Sianipar; Madju Siagian; Asmika Harnalin Simarmata
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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In floating cage fish culture activities, degradation of feed remain and fish feces will increase the nitrate content in the surrounding area. A research aims to understand the Nitrate concentration in the water from the cage area and from the area that has no cage has been done from July – November 2014. There were 3 stations, in the 200 m upstream of the cage area (S1), in the cage area (S2) and 200 m downstream of the cage area (S3). Samplings were conducted 4 times, once/2 weeks. In each station, water samples were collected from 3 different depths, in the surface; 2 secchi and 4 secchi depths. Parameter measured were pH, nitrate concentration, phosphate concentration, dissolved oxygen, transparency, temperature and depth. Result shown that the concentration of nitrate in the S1 was 0.02 – 0.09 mg/L; in the S2 was 0.07 – 0.28 mg/L; and in the S3 was 0.05 – 0.18 mg/L. The highest concentration indicates that the Koto Panjang Dam can be classified as eutrophic, especially in the area around the cage. Other water quality parameters measured were temperature : 30.60C – 310C; phosphate 0.03 – 0.35 mg/L; transparency 1.98 m – 2.55 m; depth 27 m – 40 m; pH 5 and free CO2 4.66 mg/L – 15.31 mg/L. The values of water quality parameters indicate that the water quality in the Koto Panjang Dam is good and might be able to support the life of aquatic organisms in that area. Keywords: nitrate, PLTA Koto Panjang Dam, Caged Fish Culture, phosphate

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

Types and abundance of phytoplankton of the Boko-Boko Peat swamp in the Langgam Village, Langgam District, Pelalawan Regency, Riau Province Agung Prabowo; Asmika Harnalin Simarmata; 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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The area around the Boko-Boko peat swamp has been used for palm plantation. Remains of fertilizer and pestiside used in the plantation may enter the water and decrease the water quality of the swamp and thus reduce the water quality in general. To understand the type and abundance of phytoplankton in the Boko-Boko peat swamp’s waters, a research was conducted in March 2016. There were three sampling stations namely Station 1, Station 2, and Station 3. Samplings were conducted 3 times, once/week. Results shown that there are 18 species of phytoplankton present in the peat swamp. They were classified into four classes, namely: Bacillariophyceae (6 species), Chloropyhceae (1 species), Cyanophyceae (5 species) and Xanthophycea (3 Species). The average of phytoplankton abundance was around 10,948 – 18,186 cells/L, species diversity index (H’) was 2.082 -2.424, index equatibility (E) was 0.81 – 0.86 and dominance index (C) was 0.218 – 0.288. While the water quality parameters were as follows: temperature 30.1 – 30.4 0C, transparency 48.6 - 60 cm, depth 148.3 – 180 cm, pH 5, CO2 : 7.32 – 9.99 mg/L, DO : 2.54 – 3.26 mg/L, nitrate : 0.4444 – 0.6436 mg/L and phosphate : 0.7779 – 0.123 mg/L. Based on the abundance of pyhtoplankton, it can be concluded that the peat swamp Boko - Boko can be categorized as mesotropic.Keywords : Phytoplankton, Peat Swamp, WaterQuality, Boko-Boko

Types and Abundance of Peripyhton attached in the used tyre pieces Placed in The Air Hitam River, Pekanbaru City, Riau Province Agfin Septian Yogi Pratama; Tengku Dahril; 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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ABSTRACTPeriphyton is a sessile microscopic organism that attach on submerged substrates. A research aims to determine the type and abundance of periphyton attached in theusedtyre pieces placed in the Air Hitam River substrate has been carried out in April-May 2018. 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 used tyre substrates (8 x 6) cm2. The number of tyre pieces in the S1, S2 and S3 were 12, 9, and 6 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 29 types of periphyton present and they were belonged to 4 classes, namely Bacillariophyceae (15 species), Cyanophyceae (3 species), Chlorophyceae (8species), and Euglenaphyceae (3 species). The abundance of periphyton in the tyre substrate in the S1 was 15.119 cells/cm2, in the S2 was 37.245 cells/cm2and in the S3 was 70.029 cells/cm2. The water quality parameters were as follows: water current 0.08-0.46 m/s, transparency:18-29 cm, temperature 29-29.3oC, dissolved oxygen 3.43-3.56 mg/L, free carbon dioxide 6.2-7.9 mg/L, nitrate 0.302-0.529 mg/L, phosphate 0.348-0.542 mg/L. Data obtained indicate the the water quality of the Air Hitam River is suitable to support the life of periphyton. Keywords:Type and abundance, sessile organism, aquatic algae, rubber subtrate

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