The impact of fish feed on water quality in Lake Cilala, Bogor Regency, West Java

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Abstract

Water quality in Lake Cilala has decreased due to fishery activity, which is now overgrowing. In 2016, fish cages were demolished since they caused eutrophication and sedimentation. There has yet a research on the impact of Lake Cilala aquaculture activity on water quality. This research was done to identify water quality in four sampling points, reflecting the fish cages distribution. Some parameters analyzed were temperature, TDS, TSS, pH, BOD, DO, phosphate, and nitrate. Besides that, the impact of fish feeds on water quality has also been analyzed based on conversion. Two water quality parameters exceeded the quality standard; total suspended solids (maximum value of 152 mg/L) and BOD (maximum value of 13.8 mg/L). The nitrogen released from the activity of fish feeding was 6.49 kg. Moreover, fish feces contributed to the nitrogen and phosphorus released by 7.03 kg and 32.82 kg consecutively. Therefore, the total nitrogen released was 13.53 kg. The highest total nitrogen concentration was solids in Lake Cilala sediment, not much-dissolved nitrogen in the water. Hence, aquaculture activity with a high number of cages in Lake Cilala affects the water quality.

Original languageEnglish
Article number012023
JournalIOP Conference Series: Earth and Environmental Science
Volume716
Issue number1
DOIs
Publication statusPublished - 1 Apr 2021
Event1st Journal of Environmental Science and Sustainable Development Symposium, JESSD 2020 - Jakarta, Virtual, Indonesia
Duration: 28 Sep 202030 Sep 2020

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