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Eko Purwanto
Department of Aquatic Resources Management, Faculty of Fisheries and Marine, Universitas Riau
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics Social Sciences

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Condition of Singingi River Water Quality Due to Unlicensed Gold Mining (PETI) in Tanjung Pauh Village, Singingi Hilir District, Kuantan Singingi Regency Berliana Atika; Eko Purwanto; Eko Prianto
Jurnal Perikanan dan Kelautan Vol. 29 No. 3 (2024): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.3.355-360

Abstract

Rivers play a vital role in society by preserving clean water resources, cultivating fish, and supporting daily life. In Tanjung Pauh Village, the Singingi River has experienced a decline in water quality due to human activities, namely Unlicensed Gold Mining without permission activities. The research was carried out in March-May 2024. The method used in this research was field surveys and measurements of physical and chemical parameters. Sampling was carried out at three stations: Station 1, an oil palm plantation area; Station 2, a gold mining area; and Station 3, an area downstream of the Singingi River due to the confluence of the Sushadow River and the Singingi River. The research results show that the value of temperature ranged from 28.8 - 33°C, brightness ranged from 2.48-3.11 cm, turbidity ranged from 85.6 - 251.2 NTU, current speed ranged from 4.85 - 7.06 m/s, TSS ranged from 145–182.6 mg/L, and depth ranges from 350 – 533 cm. Chemical parameters, namely dissolved oxygen ranges from 5,5 – 5,7 mg/L, pH 5, BOD5 ranges from 3– 3.6 mg/L, TOM ranges from 11.7 – 15.2 mg/L, COD ranges from 85.3 – 297.3 mg/L. According to PP no. 22 of 2021 class III concerning the Implementation and Management of the Environment. The waters of the Singingi River are polluted, which falls into the mild to heavily polluted category. Six parameters have passed the threshold regarding physical parameters, namely temperature, brightness, turbidity, and TSS and based on chemical parameters, namely pH and COD
Type and Abundance of Phytoplankton in Lubuk Larangan Area, Sungai Paku Village, Kampar District, Riau Rama Wahyudi; Muhammad Fauzi; Eko Purwanto
Jurnal Perikanan dan Kelautan Vol. 31 No. 1 (2026): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.1.85-90

Abstract

This study aims to determine the types and abundances of phytoplankton species in Lubuk Larangan, Desa Sungai Paku. This research was conducted in May-June 2024 in Lubuk Larangan, Sungai Paku Village, Kampar Kiri District, Kampar Regency. The method used was the survey method, and data analysis was conducted using statistical tests. Phytoplankton species found in Lubuk Larangan, Sungai Paku Village, were 33 species belonging to 5 classes: Chlorophyceae, Cyanophyceae, Diatome, Euglenophyceae, and Zygnematophyceae. The abundance of phytoplankton species ranged from 7.080 to 16.800 cells/L. The highest phytoplankton abundance was at station II (16.800 cells/L), and the lowest was at station I (7.080,8 cells/L). Diversity index values ranged from 3.2883 to 3.7419, uniformity index 0.90 to 0.95, and dominance index 0.08 to 0.11. The high abundance of phytoplankton species obtained in the lubuk larangan (Station II) compared to the area outside the lubuk larangan (Stations I and III) indicates a difference type and abundance of phytoplankton with the results of the T test obtained a significant value of 0.028 (p < 0.05) and the value of T count is 3.374 and the value of T table is 2.77645 where T count is greater than T table
Type and Abundance of Phytoplankton in Lubuk Larangan Area, Sungai Paku Village, Kampar District, Riau Rama Wahyudi; Muhammad Fauzi; Eko Purwanto
Jurnal Perikanan dan Kelautan Vol. 31 No. 1 (2026): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.1.85-90

Abstract

This study aims to determine the types and abundances of phytoplankton species in Lubuk Larangan, Desa Sungai Paku. This research was conducted in May-June 2024 in Lubuk Larangan, Sungai Paku Village, Kampar Kiri District, Kampar Regency. The method used was the survey method, and data analysis was conducted using statistical tests. Phytoplankton species found in Lubuk Larangan, Sungai Paku Village, were 33 species belonging to 5 classes: Chlorophyceae, Cyanophyceae, Diatome, Euglenophyceae, and Zygnematophyceae. The abundance of phytoplankton species ranged from 7.080 to 16.800 cells/L. The highest phytoplankton abundance was at station II (16.800 cells/L), and the lowest was at station I (7.080,8 cells/L). Diversity index values ranged from 3.2883 to 3.7419, uniformity index 0.90 to 0.95, and dominance index 0.08 to 0.11. The high abundance of phytoplankton species obtained in the lubuk larangan (Station II) compared to the area outside the lubuk larangan (Stations I and III) indicates a difference type and abundance of phytoplankton with the results of the T test obtained a significant value of 0.028 (p < 0.05) and the value of T count is 3.374 and the value of T table is 2.77645 where T count is greater than T table
Co-Authors Berliana Atika Eko Prianto, Eko Muhammad Fauzi Rama Wahyudi