| Secchi Disc |
| Made : Lokal |
| Fungsi Alat : ALAT UNTUK MENGUKUR KEKERUHAN AIR SECARA KASAT MATA / |
| Peralatan untuk memantau tingkat kekeruhan air baik untuk kolam renang, sungai, danau, dan Laut. |
| Specification : |
| Black and White |
| Size : 20 cm diameter |
| Material : Heavy Duty ABC Plastic or Sintra PVC |
| Includes 20 m Polyester Line |
| Some of the reports for any one season shoe increased water |
| transparancy depth after the first week of soring |
| This maybe due to : |
| Reduced nutrient input from the watershed |
| Increased grazing of algae zooplankton |
| Reduced some soil erosion in the lake |
DKI Jakarta - Jakarta Timur