Madju Siagian
Dosen Pengajar Jurusan Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Riau

Published : 63 Documents
Articles

JENIS DAN KEANEKARAGAMAN FITOPLANKTON DI WADUK PLTA KOTO PANJANG, KAMPAR, RIAU Siagian, Madju
Bumi Lestari Journal of Environment Vol 12, No 1
Publisher : Udayana University

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Abstract

A study on the type and phytoplankton diversity in the Koto Panjang Dam, Kampar, Riau , was conducted on May-October 2009. There were 6 stations, in the Batu Basurat, Koto Tuo , Tanjung Alai, Batang Mangat and Rantau Berangin villages and in the river mouth of the Kampar River. Parameters measured were water quality in general and phytoplankton diversity. In each station, water and phytoplankton samples were taken in the surface, 2.5 secchi depth and in the bottom of the dam. Sampling was conducted once/ month. Types, abundance and diversity of phytoplankton were analyzed. Results shown that there were 17 species of phytoplankton that were belonged to 4 classes, namely Bacillariophyta (6 species), Chlorophyta (5 species), Crysophyta (3 species) and Cyanophyta ( 3 species). There were no dominant species in the research area, good diversity index (2.13-2.71) and high similarity index (0.81-0.94). Based on data obtained, it can be concluded the water quality in the Koto Panjang Dam is suitable for supporting the life of phytoplankton.
DAYA DUKUNG WADUK PLTA KOTO PANJANG KAMPAR PROVINSI RIAU Siagian, Madju
Jurnal Perikanan Dan kelautan Vol 15, No 01 (2010)
Publisher : Jurnal Perikanan Dan kelautan

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A study on carrying capacity in the reservoir of Koto Panjang Hydro-electricPower Plant, Kampar, Riau Province, was conducted on May-October 2009. The studyaims to assess the quality and carrying capacity of the reservoir for the development offloating net cages (FNC) units that can be sustainably implementd. Carrying capacity ofthe reservoir was estimated based on P total and dissolved oxygen availability in thewater, while number of FNC was estimated based on the total P availability against thebiomass of fish in the FNC. Based on its carrying capacity, the number of FNC unitswhich can be exposed in the reservoir during the period of the study is 19,599 – 33,515.units. The existing utilization level for 900 FNC is actually about 2.7-4.6 % of thecapacity. This indicates that FNC is potential to be develoved. Regarding the potency ofpollution from Kampar and Batang Mangat river basin (allochtonous sources) and fromthe existing FNC (autochtonous sources) as well as regression analysis of total P contents,it is precdicted that the carrying capacity of the reservoir will considerably decreaseTherefore, it is recommended that number of FNC to be operated in Koto Panjangreservoir should be gradually reduced approximately to 1.32 % a year, up to a minimumnumber of 19,599 units, especially in the potential utilization zone of the reservoir.
STRATEGI PENGEMBANGAN KERAMBA JARING APUNG BERKELANJUTAN DI WADUK PLTA KOTO PANJANG KAMPAR RIAU Siagian, Madju
Jurnal Perikanan Dan kelautan Vol 15, No 02 (2010)
Publisher : Jurnal Perikanan Dan kelautan

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A study on the strategy of the development of sustainable floating-net cagefisheries in the reservoir of Koto Panjang Hydro-electric Power Plant, Kampar, RiauProvince, was conducted on May-October 2009.. Based on its carrying capacity, thenumber of FNC units which can be exposed in the reservoir during the period of thestudy is 19,599 – 33,515. units. The existing utilization level for 900 KJA is actuallyabout 2.7-4.6 % of the capacity. This indicates that FNC is potential to be develoved.At the time of FNC research with operations in reservoirs are concentrated in theforbidden zone as compared with cultivation zone . The strategy of developmentfloating net cage in reservoir of Koto Panjang for the use of wastes, cultivationtechnology, and environmentally friendly quality feeding, so that the waste from FNCcan be reduced and the adversely impact can be minimized and the reservoir qualitycan be controlled up to floating net cage fisheries in the reservoir sustainable.
Profil Vertikal Oksigen Terlarut di Danau Pinang Luar (Oxbow Lake) Kecamatan Siak Hulu, Kabupaten Kampar, Provinsi Riau Siagian, Madju; Simarmata, Asmika H.
Jurnal Akuatika Vol 5, No 1 (2014): Jurnal Akuatika
Publisher : Fakultas Perikanan dan Ilmu Kelautan

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Kajian ini berada di danau Pinang luar dengan konsentrasi Dissolved Oxygen (DO) dipengaruhi oleh kondisi lingkungan. Studi ini bertujuan untuk mengetahui konsentrasi DO di danau Pinang Luar, sebuah danau oxbow yang menerima air dari Sungai Kampar telah dilakukan pada Juni-Juli 2013 selama level air minimum . Pengambilan sampel dilakukan dengan metode post facto survei . Ada 3 stasiun , yaitu Stasiun 1 (inlet), Station 2 (di bagian tengah danau) dan Station 3. Sampling vertikal pengambilan sampel diputuskan berdasarkan transparansi air, di permukaan, di 1,5 dan 2,5 kedalaman Secchi dan di dasar danau. Pengambilan sampel dilakukan sekali / minggu , untuk jangka waktu 3 minggu. Parameter yang diukur adalah DO, suhu , transparansi , pH , kedalaman dan kelimpahan fitoplankton . Hasil menunjukkan bahwa DO di permukaan adalah 5,20-6,40 mg / l , dalam 1,5 secchi adalah 4,00-4,40 mg / l , dalam 2,5 secchi adalah 2,93-4,00 mg / l dan di bagian bawah adalah 1,87-2,53 mg / l . Data profil DO menunjukkan bahwa penurunan tertinggi terjadi pada permukaan untuk kedalaman secchi 1.5 (0 m sampai 1,0 m kedalaman masing-masing) . Secara umum, konsentrasi DO di daerah antara permukaan air sampai kedalaman 2,5 Secchi sangat cocok untuk mendukung kehidupan organisme air .
Pengaruh Budidaya Keramba Jaring Apung Terhadap Struktur Komunitas Perifiton pada Substrat yang Berbeda di Sekitar Dam Site Waduk PLTA Koto Panjang Kampar Riau Siagian, Madju
Jurnal Akuatika Indonesia Vol 3, No 1 (2018): Jurnal Akuatika Indonesia (JAkI)
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Padjadjaran

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Abstract

Penelitian ini bertujuan mengetahui struktur komunitas perifiton pada substrat yang berbeda dan mengetahui tingkat pencemaran waduk PLTA Koto Panjang sekitar dam site dengan perifiton sebagai indikator biologis.  Metode yang digunakan dengan pengukuran langsung di lapangan pada bulan November 2015 dengan pengamatan suhu, kecerahan, CO2, nitrat, fosfat, oksigen and perifiton. Hasil penelitian menunjukkan bahwa parameter kualitas yang diamati memenuhi syarat dalam mendukung hidup perifiton. Nilai indeks keanekaragaman pada substrat yang berbeda berkisar 1,117-2,24975 dimana indeks dominansi berkisar 0,24378-0,47126 dan indeks keseragaman berkisar 1-1,8. Dari nilai indeks-indeks tersebut, perairan di sekitar dam site zona lakustrin Waduk PLTA Koto Panjang telah mengalami tekanan (gangguan) dengan status tercemar ringan, tidak ada spesies yang mendominasi dan keseragaman organisme berada dalam keadaan seimbang, tidak terjadi persaingan terhadap makanan  dan ruang. Dalam penelitian ini terlihat bahwa pada substrat keramba (pelampung) jenis dan jumlah individu/jenis lebih rendah dibandingkan pada substrat daun, untuk itu disarankan melihat struktur komunitas perifiton pada jaring kerambanya  dikaitkan dengan keberlanjutan aktivitas budidaya ikan dalam KJA di sekitar dam site Waduk PLTA Koto Panjang. Dari hasil penelitian ini disimpulkan aktivitas budidaya ikan dalam  KJA di waduk PLTA Koto Panjang  di sekitar dam site mempengaruhi  struktur komunitas perifiton pada masing-masing stasiun dan substrat yang berbeda.
The vertical profile of chlorophyll-a in pinang dalam lake Buluh cina village siak hulu subdistrict kampar district Riau province Manurung, Arum Fuji R; Siagian, Madju; Sihotang, Clemens
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 the Pinang Dalam Lake Buluh Cina Village SiakHulu Subdistrict Kampar District Riau Province. This research aims to understand thevertical profile of chlorophyll-a in this lake. The research used survey method. Thechlorophyll-a samples were collected from three station namely station I at inlet of lake ,station II in the midle of lake and station III the end of lake. There were three samplingsites in each station were in the surface, 1.5 Secchi depth and 2.5 Secchi depth. Samplingwas done three times, once a week. The result shown chlorophyll-a concentration insurface :17.26 μg/L -21.44 μg/L, 1.5 secchi depth 11.60 μg/L-14.43 μg/L and in 2.5 secchidepth 9.98 μg/L - 12.41 μg/L. A chlorophyll-a concentration in surface higher than in the1.5 secchi depth and 2.5 secchi depth. The chlorophyll-a concentration decrease with thedepth. Water quality result shown pH:5; DO: 2.60-5.88 mg/L; CO2: 6.79-13.31 mg/L;nitrate: 0.0134-0,093 mg/L; phosphate: 0.03-0.15 mg/L; phytoplankton abundance:3,420,423-4,293,075 cell/L; depth: 180.67-429 cm; transparency: 52.5-54.5 cm;temperature: 28oC-28.34oC. Based on data obtained, it can be concluded the consentrationof chlorophyll-a in Pinang Dalam Lake showed the trophic status was mesotrophic and allwater quality still support the life of aquatic organisms.Keywords : Chlorophyll-a, the vertical profile, Pinang Dalam Lake
The Vertical Profile Of Phosphate In Pinang Dalam Lake Buluh China Village Siak Hulu Sub District Kampar District Riau Province Sigalingging, Artauli; Siagian, Madju; Sihotang, Clemens
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
The vertical profile of nitrate in bakuok lake aursati Village tambang subdistrict kampar district Riau province Nababan, Krismanto Viade; Siagian, Madju; Simarmata, Asmika Harnalin
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 from March to April 2014 in the Bakuok Lake,Aursati Village, Tambang Subdistrict, Kampar District, Riau Province. This research aimsto understand the vertical profil of nitrate in this lake. The research used survey method.The nitrate samples were collected from three station namely station I at inlet of lake,station II in the middle of lake and station III in the end of lake. There were three samplingsites in each station were in the surface, 1,5 Secchi depth and bottom. Sampling was donethree times, once a week. The result shown nitrate concentration in surface : 0,01-0,03mg/L, in 1,5 Secchi depth 0,03-0,06 mg/L and in the bottom 0,05-0,12 mg/L. The nitrateconcentration in surface lower than in the 1,5 Secchi depth and in the bottom and nitrateconcentration increase with the depth. Water quality result shown pH:6, DO: 1,78-5,33mg/L, CO2: 4,66-15,31 mg/L, depth: 208-332 cm, transparency: 74,3-93,7 cm andtemperature: 29,6-30oC. Based on data obtained, it can be concluded the consentration ofnitrate in Bakuok Lake showed the trophic status was Oligotrophic and water quality stillsupport the life of aquatic organisms.Keywords: nitrate, the vertical profile, Bakuok Lake
The Vertical Profile Of Dissolved Oxygen in Pinang Dalam Oxbow Lake Buluh China Village Siak Hulu Sub District Kampar District Riau Province Sinaga, Walmon; Siagian, Madju; Simarmata, Asmika Harnalin
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 in February-March 2014 in Lake Danau Pinang Dalam. Theresearch aims to understand the vertical profile of Dissolved Oxygen in Pinang Dalam Oxbowlake. 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, 2,5 secchi disk and in thebottom. The parameter of water quality measured pH, temperature, nitrate, phosphate, depth,transparancy, and dissolved oxygen (DO). The result shown concentration of dissolved oxygenrange 2,04-5,29 mg/L, concentration of nitrate range 0,02-0,34 mg/L and the concentration ofphosphate range 0,01-0,71 mg/L. The value of temperature was 28,50C, depth range of 145-302cm. The value of pH was 5. the parameters of water quality were observed still support theaquatic organisms..Keywords : dissolved oxygen, the vertical profile, Pinang Dalam Oxbow
The Vertical Profile Of Nitrate in Pinang Dalam Oxbow Lake Buluh China Village Siak Hulu Sub District Kampar District Riau Province Zaki, Muhammad; Siagian, Madju; Simarmata, Asmika Harnalin
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