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All Journal Ilmu Perikanan Tropis Nusantara Journal of Tropical Fisheries
Linda Wulandari
University of Palangka Raya
Agriculture, Biological Sciences & Forestry Environmental Science Immunology & microbiology Public Health

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KEPADATAN DAN KEANEKARAGAMAN MAKROZOOBENTHOS DI DANAU HANJALUTUNG DAN SUNGAI RUNGAN KOTA PALANGKA RAYA: Density and Diversity Macrozoobenthos in Hanjalutung Lake and Rungan River Palangka Raya City Linda Wulandari; Satna K Simbolon; Evi Veronica; Rosana Elvince
JOURNAL OF TROPICAL FISHERIES Vol. 21 No. 1 (2026): Journal of Tropical Fisheries
Publisher : Jurusan Perikanan Fakultas Pertanian, Kehutanan dan Perikanan, Universitas Palangka Raya (UPR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jtf.v21i1.24799

Abstract

This study aims to determine the density and diversity of macrozoobenthos and water quality conditions including temperature, depth, turbidity, pH and DO in Lake Hanjalutung and Rungan River. This research was conducted in July 2023 at Lake Hanjalutung. The results showed that at the study site found as many as 15 species of macrozoobenthos included in 3 phyla namely Uniramia, Annelida and Nematoda. The average macrozoobenthos density value ranged from 134-1,032 ind/m2. The average of diversity index values ranged from 0.714 to 1.278 indicating the diversity of macrozoobenthos species classified as low to moderate. The condition of water quality parameters at the study site showed the value of the temperature parameter was still suitable for the life of aquatic organisms. Meanwhile, the pH and DO parameter values showed relatively low values at all stations, but these values are still suitable for waters influenced by peat swamp ecosystems because they are still in their natural conditions. While the value of the turbidity parameter at station IV and the depth value at station II were higher than the other stations. Anova results on the value of diversity showed no difference between stations. While the density values showed there were differences between observation stations. Anova result on physical and chemical water quality parameters showed no difference in temperature, turbidity, pH and DO values between stations. Keywords: Macrozoobenthos, water quality parameters, Lake Hanjalutung
Water quality and pollution load capacity of the Rungan River in Tangkiling, Palangka Raya, Indonesia Ummi Suraya; Dea Minahtri Anggreni; Linda Wulandari; Rosana Elvince; Hamdhani Hamdhani
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 5 No. 2 (2026): Nusantara Tropical Fisheries Science
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/1faw6q43

Abstract

This study assessed water quality and pollution-load capacity in the Rungan River around Tangkiling, Palangka Raya, Central Kalimantan, Indonesia. Water was sampled at four purposively selected stations in June 2025, with field measurements and laboratory analyses conducted on three occasions at seven-day intervals. Temperature, current velocity, depth, total suspended solids (TSS), total dissolved solids (TDS), pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), phosphate, and nitrate were examined. Results were compared with the water-quality classes specified in Indonesian Government Regulation No. 22/2021. Mean temperature was 26–28 °C, TSS was 109–127 mg/L, TDS was 9.6–10.1 mg/L, pH was 4.1–4.6, DO was 2.8–3.2 mg/L, and BOD was 4.0–8.4 mg/L. TSS exceeded the reported limits for Classes 1–3, while DO was below the requirements for Classes 1–2. BOD was elevated at Stations I, II, and IV relative to the reported Class 3 criterion; Station III had the lowest mean BOD. The acidic pH was attributed by the original study to the river’s peat-swamp setting, although this interpretation requires consideration of local baseline conditions. The manuscript’s load-capacity calculations indicated negative capacity for TSS and BOD, but positive capacity for TDS, phosphate, and nitrate. Several inconsistencies in the source calculations and units prevent the reported pollution-load values from being treated as validated estimates. Overall, the results indicate that suspended solids and oxygen-demand conditions warrant priority monitoring and source-control measures.
Co-Authors Dea Minahtri Anggreni Evi Veronica Hamdhani Hamdhani Rosana Elvince Rosana Elvince Satna K Simbolon Ummi Suraya