Table 1. Sampling sites in the upstream and downstream areas at Koto Panjang Reservoir.
| Sampling Site | Site Code | Areas | Distance from on
Dam position (km) |
Latitude | Longitude |
|---|---|---|---|---|---|
| Koto Mesjid | KM | Upstream Reservoir | 1.2 | 0°17'06.92˝N | 100°52'31.31˝E |
| Batu Bersurat | BB | Upstream Reservoir | 15.5 | 0°20'12.30˝N | 100°44'27.26˝E |
| Rantau Berangin | RB | Downstream Reservoir | 1.2 | 0°17'59.79˝N | 101°54'47.19˝E |
| Kuok | TB | Downstream Reservoir | 15.5 | 0°23'26.88˝N | 101°25'50.64˝E |