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Journal of Tropical Aquatic Resource Management
Published by Universitas Tanjungpura
ISSN : -     EISSN : 30637414     DOI : 10.26418/akuatiktropis
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
Akuatik Tropis: Journal of Tropical Aquatic Resource Management is an open-access academic journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Social Economy Fisheries) Ecology (Freshwater, Marine, and Brackishwater) Biology (Fish, Mollusk, Crustacean, Plankton, Mammals, Coral reefs) Oceanography
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 32 Documents
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Analisis Kualitas dan Kuantitas Air Permukaan Pasca Tambang (Pit Lake) di Tambang Emas Kabupaten Melawi Aksa, Sukma Adi; Mulyadi, Achmad; Ruliyansyah, Agus
Akuatik Tropis (Akuatrop): Journal of Tropical Aquatic Resource Management (ISSN:3063-7414) Vol. 4 No. 1 (2026): Jurnal Akuatik tropis
Publisher : Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/akuatiktropis.v4i1.102393

Abstract

This study analyzes the quality and quantity of post-mining surface water (pit lake) in a former illegal gold mine in Sidomulyo Village, Melawi Regency, West Kalimantan. The objectives of the study were: (1) to assess water quantity (volume, depth, area), (2) to compare water quality based on physical-chemical parameters, and (3) to identify the use of pit lakes by the community. The study was conducted during June 2024–May 2025 in two pit lakes (Brown and Blue) with sampling in June and July. Water quality parameters included physics (temperature, brightness, TSS, TDS, color) and chemistry (pH, Cu, CN⁻, DO), analyzed using the Pollution Index (IP) and Water Quality Index (WQI) according to PP No. 22/2021 class III (fishery and agriculture purposes). The latest theoretical study integrates the concept of Acid Mine Drainage (AMD) (Kefeni et al., 2017). The quantity of Brown Pit Lake (volume 2,492.55 m³, depth 1.78 m, area 1,399 m²) and Blue Pit Lake (volume 19,458.80 m³, depth 3.41 m, area 5,705 m²) depends on rainwater. Brown Pit Lake IP: Good (IP 0.77 June) and Slightly Polluted (IP 1.28 July). Blue Pit Lake: Slightly Polluted (IP 2.69 June and 1.72 July). WQI: Both pit lakes have the status of "Clean" (WQI 0.31–0.60). Parameters exceeding the quality standard: pH is very acidic (2.8–3.7) due to oxidation of pyrite minerals (AMD). Land use The community utilizes Blue Pit Lake for tourism (blue lake) and oil palm/rubber land (75% of respondents stated that there was no post-mining rehabilitation). Keywords: Gold Mine,Pit Lake, Pollution Index, Water Quality, Water Quality Index.
Karakteristik Warna Mikroplastik di Perairan Sungai Jawi Kecamatan Sungai Kakap Kabupaten Kubu Raya Nh, Rozza Nabilla; Munir, Achmad Mulyadi Sirojul; Kurniadi, Bambang
Akuatik Tropis (Akuatrop): Journal of Tropical Aquatic Resource Management (ISSN:3063-7414) Vol. 4 No. 1 (2026): Jurnal Akuatik tropis
Publisher : Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/akuatiktropis.v4i1.105680

Abstract

Microplastic pollution in tropical river waters such as the Jawi River, Sungai Kakap District, Kubu Raya Regency, West Kalimantan is increasingly worrying due to anthropogenic activities such as domestic waste. This study aims to identify the color and abundance of microplastics. Water samples (20 L/station) were taken from 6 purposivestations using a 40 μm mesh plankton net, identified through saturated NaCl density separation and a binocular microscope. The total abundance reached 998 particles/L, dominated by transparent colors (957 particles/L), yellow (13 particles/L), blue (13 particles/L), black (8 particles/L), pink (3 particles/L), purple (2 particles/L), red (1 particle/L) and green (1 particle/L). Environmental parameters: pH 6.45-7 (neutral), DO 3-7 mg/L (low upstream), salinity 0-5 ppt (upstream), brightness 16-72 cm. One-Way ANOVA test showed no significant difference between stations (Sig. 0.917 > 0.05). Multiple regression of physico-chemical parameters with color abundance was not significant (all Sig. >0.05, R = 0.269). Transparent color was dominant at the estuary station (high salinity), black accumulation in the upstream (low DO), indicating the source of new plastic packaging and degraded pollutants from domestic/fishery activities. This study is the basis for plastic waste management based on color characteristics in the Jawi River.

Page 4 of 4 | Total Record : 32

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