Abstract
The utilization of Ranu Grati for aquaculture in the form of floating net cages loads more phosphorus to the water as the result of fish feed waste. The rising of phosphorus concentration in water may lead to eutrophication which indicates bad water quality. This study aim to estimate the amount of phosphorus that can be carried by Ranu Grati and to identify its water quality status based on Trophic State Index (TSI) measurement. The estimation of Lake carrying capacity was according to Indonesia Minister of Environment Act No. 28, 2009. The results show that Ranu Grati is capable to carry the phosphorus load due to floating net cages at 12.674,11 kg year-1 which is lower than the current number of phosphorus waste that discharged from floating net cages that reaches 16.360,176 kg year-1. Meanwhile, the TSI scores from all sampling sites indicate that Ranu Grati is light eutrophic until medium eutrophic.
| Original language | English |
|---|---|
| Pages (from-to) | 1902-1908 |
| Number of pages | 7 |
| Journal | AACL Bioflux |
| Volume | 12 |
| Issue number | 5 |
| Publication status | Published - 2019 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation -
SDG 14 Life Below Water
Keywords
- Aquaculture waste
- Cholorphyll-a
- Eutrophication
- Pollution
- Transparency
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