Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Madju Siagian
Unknown Affiliation
Earth & Planetary Sciences

Published : 56 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 56 Documents
Search

 2   3   4   5   6 
Carrying Capacity for Extensive Fishing in Bunter Lake Siak Hulu Sub-District Kampar District Riau Province Based on Chlorophyll-a Zaini Hafiz; Asmika Harnalin Simarmata; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTCarrying capacity is defined as the ability of aquatic enviromment to support the life organism in that area. A study aimed to asses the aquatic carrying capacity based on choloropyll-a for extensive fishing was conducted in the Bunter Lake. Carrying capacity was determined based on primary productivity using chlorophyll-a. The 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 sites, in the surface and 2 Secchi depth. Sampling was done 4 time, once a week. Water quality parameter measured chlorophyll-a, nitrate, phosphat, dissolved oxygen, water transparency, temperature and pH. Result shown that chlorophyll-a 10.49-10.89 µg/L, nitrate 0.043-0.080 mg/L, phosphate 0.022-0.37 mg/L, dissolved oxygen 4.32-6.59 mg/L, water transparency 77.7-85.2 cm, temperature 29.5-30.5 ºC and pH 5. The concentration of chlorophyll-a indicate that carrying capacity of the Bunter Lake for extensive fishing was 0.73 tons/year.Key Word : chlorophyll-a, carrying capacity, water quality, bunter lake, primary productivity
Types and abundance of phytoplankton in the Parit Belanda River Rumbai Pesisir District, Pekanbaru, Riau Satria Yunda; Asmika H. Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Phytoplankton is a microscopic aquatic organisms that has limited movement. A research aims to determine types and abundance of phytoplankton has been carried out on December 2016 in the Parit Belanda River. There are three stations namely Station 1 (in the upstream), Station 2 (in the middle) and Station 3 (in the downstream). Samplings were conducted once/week for 4 weeks period. Water quality parameter measured were temperature, transparency, pH, DO, CO2, nitrate and phosphate. Phytoplankton was identified. Result shown that there are 53 types of phytoplankton and they are belonged to 7 classes, namely Bacillariophyceae (17 species), Chlorophyceae (18 species), Cyanophyceae (9 species), Cryptophyceae (1 species), Crysophyceae (1 species) Dinophyceae (3 species), and Xanthophyceae (2 species). Phytoplankton abundance in the Parit Belanda River range from 1,836 – 2,675 cells/L. Water quality parameters were as follows: temperature 28.25-29 oC, transparency 34.4-46.25 cm, pH 5-6, DO 1.95-4.42 mg/L, CO2 32.96-54.95 mg/L, nitrate 0.076-0.137 mg/L, and phosphate 0.194-0.264 mg/L. Based on the abundance of pyhtoplankton, the Parit Belanda River can be categorized as oligotrofic.Keywords:Parit Belanda River, Pyhtoplankton, Oligotrofic, Riau, Water quality.
Type and Density of Zooplankton in The Tepian Batu Lake Teratak Buluh Village, Siak Hulu Sub Distriet, Kampar District, Riau Province Lauri Sahat Parulian M; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

AbstractThere were several human activities around the Tepian Batu Lake which contrubuted input of organic and anorganic matter and thus influence the type and density of zooplankton. To understand the types and density of zooplankton in the Tepian Batu Lake, a research has been carried out in June-July 2019. There were three sampling points, namely in the inlet, in the middle of the lake, and in the end of the lake. In cach sampling points, the water was sampled from the surface and 2 Secchi depth. Sampling were conducted 3 times, once/week. Water quality parameters measured were temperature, dissolved oxygen, transparency, pH, nitrate and phosphate. Results shown that there were 15 species of zooplankton present and they were belonged to 8 classes, namely Cladocera (1 species), Monogononta (3 species), Crustacea (2 species), Copepoda (2 species), Ciliata (3 species), Sarcodina (1 species), Protozoa (2 species), dan Sagittoeida (1 species). The zooplankton average density in the Tepian Batu Lake was 2160-4410 organisms/L. The most common type of zooplankton present in the Tepian Batu Lake was Ciliate. Water quality parameter values were as follow, temperature was 28.7-30.5 oC, transparency was 56.5-63.75 cm, dissolved oxygen was 3.13-5.35 mg/L, pH was  5-5.25, CO2 was 6-12,99 mg/L, nitrate was 0.031-0.078 mg/L, and phosphate was 0.062-0.116 mg/L. Based on the type of zooplankton present, it can be concluded that the Tepian Batu Lake can be categorized as oligotrophic.Keywords : Kampar River, Oxbow Lake, Water quality
Types and abundance of periphyton in the glass substrate placed in the Salo River, Salo District, Kampar Regency Santo Rio Pakpahan; Madju Siagian; Asmika Harnalin Simarmata
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Periphyton it is aquatic microorganisms that are attached in any submerged substrate. This research aims to understand the type and periphyton abundance on glass substrates that were immersed in the Salo River. The research was conducted in August – September 2015. There were 3 stations, namely. Station 1, Station 2 and Station 3. Water quality measured were transparency, temperatur, dissolved oxygen, current velocity, carbon dioxide and pH. Periphyton were then identified. Results shown that there were 33 species and they were included in 5 classes. Bacillariophyceae (22 species), Cyanophyceae (3 species), Chlorophyceae (4 species), Dynophyceae (1 species), and Xanthophyceae (3 species). The abundance of periphyton was 5,460 cell/cm2 – 61,941 cell/cm2. The highest abundance was found in the Station 3 (61,941 cell/cm2) and the lowest was found in the Station 1 (5,460 cell/cm2). Based on data obtained, it can be concluded that the water in the Salo River is categorized as oligotrophic to mesotrophic.Keywords: Salo River, Periphyton, Glass Substrate, Type and Abundance
Trophic State of The PLTA Koto Panjang Dam Kampar Regency Based on TSI (Trophic State Index) Valentina Manurung; Madju Siagian; Asmika H Simarmata
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrac Trophic State Index can be used to determine the trophic state of waters. The TSI was calculated based on chemical, biological and physical parameters and it is more representative for analyzing the trophical state of waters. To understand the trophic state of the PLTA Koto Panjang Reservoir, a research has been conducted in May 2018. There were four sampling 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 three sampling points, in the surface, in 2 Secchi depth, and in 4 Secchi depth. Sampling were conducted 3 times, once/week. Water quality parameter measured were total phosphorus, chlorophyll-a, transparency, temperature, pH, dissolved oxygen and free carbon dioxide. 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 0.14 - 0.43 mg/L, chlorophyll-a 2.22 - 6.53 µg/L, depth 119.3 - 132.0 cm, temperature 27.7 - 31.7oC, pH 5.0, dissolved oxygen 3.04 - 6.81 mg/L and free carbon dioxide 09.39 - 26.93 mg/L. Trophic State Index value of the PLTA Koto Panjang Reservoir was 60.50 - 65.00, it indicates that the PLTA Koto Panjang water is in moderate eutrophic condition. Keywords: Carlson’sTrophic State Index, TSI,  moderate eutrophic, and water quality
Types and abundance of peripyhton in the glass substrate placed in The Bandar Kayangan Lembah Sari Reservoir, Rumbai Pesisir District, Pekanbaru Abdi Doly Tarigan; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

AbstractPeriphyton is a sessile microscopic organism that attached on immersed substrates. A research aims to determine the type and abundance of periphyton on glass substrate has been carried out in April-May 2018 in the Bandar Kayangan Lembah Sari Reservoir. 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 two sampling points,   24 glass were immersed (12 pieces in 20 cm depth and 12 pieces in the middle of water column depth).   Samplings were conducted 3 times, once/week. Water quality parameters measured were temperature, transparency, pH, dissolved oxygen, free carbon dioxide, nitrate, and phosphate. Results shown that there were 22 types of periphyton present and they were belonged to 4 classes, namely Bacillariophyceae (5 species), Chlorophyceae, (13 species) Cyanophyceae (2 species), and Euglenaphyceae (2 species). The periphyton abundance of Bandar Kayangan Lembah Sari Reservoir was 3,064-15,240 cells/cm2. Based on the abundance of periphyton, trophic state of the Bandar Kayangan Reservoir’s water is eutrophic. The water quality parameters were as follows: temperature: 27.3-29.3°C, transparency: 65.17-74.33 cm, pH: 5, free carbon dioxide: 3.32-4.66 mg/L,      dissolved oxygen: 5.87-7.38 mg/L, nitrate: 0.02-0.07 mg/L, and phosphate: 0.03-0.07 mg/L.Keywords: Sessile organism, water quality, glass substrate, man-made lake, 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 '