Structure Community of Phytoplankton as a Bioindicator of Water Quality in Situ Rawa Dongkal, East Jakarta, Indonesia | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 69, Volume 26, Issue 5, September and October 2022, Page 1273-1288 PDF (401.69 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2022.268461 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Muhammad Ridwan et al. | ||||
| Abstract | ||||
| Situ Rawa Dongkal is one of the radical urban lakes in the village of Cibubur, East of Jakarta, Indonesia. This urban lake plays a vital role in water conservation, biodiversity, nurseries and recreational facilities. Currently, Situ Rawa Dongkal is facing pressure originating from nature and human activities, causing changes in water quality. Phytoplankton as an environmental bioindicator can be used to measure the water quality of this lake. Thus, a quantitative study was conducted to address the water quality in Situ Rawa Dongkal based on chemical, physical and phytoplankton factors as reference material on the usefulness of water for tourism. Parameters of pH, temperature, BOD, COD, DO, nitrates, phosphates and phytoplankton were measured. Sampling was conducted three times at four stations. In addition, diversity, uniformity and dominance were determined for the analysis of the phytoplankton community structure. Some results of physico-chemical measurements, such as temperature, pH, nitrates and phosphates indicate a good condition, supporting the life of organisms, especially phytoplankton. While values of BOD and COD were higher than the quality standard. 22 genera were detected from 6 classes; namely, Bacclilariophyta, Chlorophyta, Ochrophyta, Chrysophyta and Euglenophyta, with the most dominant number from the class Chlorophyta. Generally, the phytoplankton diversity values are low-medium, and the saprobity index values fall into the / - Mesosaprobic to - Meso / oligo saprobic categories. These results indicate that the Situ Rawa Dongkal ecosystem is less stable but slightly polluted, thus it is still recommended for tourism activities. | ||||
| Keywords | ||||
| Situ Rawa Dongkal; Phytoplankton; Bioindicator; Water quality | ||||
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