STATUS TROFIK PERAIRAN SITU KEBANTENAN, KABUPATEN BOGOR, PROVINSI JAWA BARAT

Muhammad Suhaemi Syawal, Marwiyah Ulfah, Muta Ali Khalifa, Abdul Hamid

Abstract


Activities at Situ Kebantenan contribute to the entry of various types of waste. These wastes include domestic waste, fishery and industrial waste. The water supply of Situ Kebantenan comes from the Cisadane River and Ciliwung Riverwhich indirectly carries garbage. If the condition of the entry of the pollution load occurs continuously, it will certainly have a bad impact on the quality of the waters and the organisms that live in the waters of Situ Kebantenan. The level of fertility in the in situ waters can minimize and control the pollution load that enters from the surrounding environment so that the existence of the in situ ecosystem can be utilized sustainably. Therefore, it is necessary to do research on the level of fertility of the waters using the TRIX (Trophic Index) calculation formula. The purpose of this study was to determine the trophic status of Situ Kebantenan, Bogor Regency, West Java Province based on the TSI (Carlson Trophic State Index) method and the TRIX (Trophic Index) method.

This research was conducted in April-May 2019. Sampling of water and in-situ parameter testing was carried out at Situ Kebantenan located in Cibinong, Bogor Regency. Ex situ tests included TN (Total Nitrogen), TP (Total Phosphate) and chlorophyll-α. In the research procedure, samples were taken 3 times with an interval of 14 days and on the surface of the Situ Kebantenan waters. The method used in this study included measurements of chlorophyll-a levels, total phosphate and total nitrogen. Based on the Carlson Trophic Index (TSI) method on testing water samples in the waters of Situ Kebantenan, it shows that the TSI value is included in the eutrophic category with values ranging from 112.12-125.53. Based on the Trophic Index (TRIX) method, the Kebantenan Situ has a TRIX value ranging from 2.034 to 2.78 which is included in the mesotrophic category.


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DOI: https://doi.org/10.31957/acr.v5i1.2265

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