Trophic Status of Waters in Poso Watershed, Central Sulawesi
| Autor: | F Sulawesty, null Triyanto, GS Haryani, null Lukman, O Samir, F Ali, E Nafisyah |
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| Rok vydání: | 2022 |
| Zdroj: | IOP Conference Series: Earth and Environmental Science. 950:012039 |
| ISSN: | 1755-1315 1755-1307 |
| DOI: | 10.1088/1755-1315/950/1/012039 |
| Popis: | Poso Watershed is a potential area for tropical eel fish resources, the disturbance of the ecosystem balance in the form of damage to the catchment area will affect the existence of eel fish. This study aimed to determine the trophic status of the Poso watershed. Observations were conducted in March 2021 in six zones of the basin, namely Kodina River (1 site), Lake Poso (2 sites), Poso outlets (3 sites), Poso River (2 sites), and Poso river estuaries (4 sites). The observed parameters were water quality (physics and chemistry) and biology (phytoplankton composition and abundance). In general, the conditions of the Poso Watershed are still good, temperatures range from 24.26 ° C-29.24 ° C, pH shows that these waters are alkaline (9.15-10.21), and dissolved oxygen (DO) indicates dissolved oxygen quite high (7,13-7,93 mg/L). The values of chlorophyll-a, total nitrogen (TN), and total phosphorus (TP) showed low. The value of turbidity and total suspended solids is higher at the mouth of the Poso River (MP1-MP4) compared to other stations. The abundance of phytoplankton is low (9-848 individuals/liter), and the species with high abundance is Staurastrum sp. (Chlorophyceae). Hence, this study shows the Poso Watershed, including oligotrophic to eutrophic waters. |
| Databáze: | OpenAIRE |
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