Table 2 Environmental parameters and topography of the rivers in northwest Peninsular Malaysia where anguillid eels were collected.
River | Location | Distance from estuary (km) | Elevation (m) | Depth (m) | Water temperature (°C) | Salinity (psu) | Tidalinfluence |
|---|---|---|---|---|---|---|---|
Kedah State | |||||||
Kuala Sanglang River | D | 3.4 | 6 | 0.5–1.5 | 35.7 | 0.21 | No |
Penang State | |||||||
Batu Feringhi River | D | 0.3 | 2–8 | 0.1–0.5 | 26.1–26.7 | 0.06–0.09 ( low tide) | Yes |
Teluk Bahang River | D | 0.6 | 2–10 | 0.1–0.8 | 27.5–28.5 | 0.04–1.93 ( low tide) | Yes |
| Â | Â | Â | Â | Â | Â | 27.8 ( high tide) | Â |
Pinang River | U | 5.2 | 174–217 | 0.2–2.5 | 23.6–24.2 | 0.01 | No |
Pinang River | M | 4.7 | 36–38 | 0.2–2.0 | 27 | 0.01 | No |
Pinang River | D | 1.6 | 4–11 | 0.5–1.5 | 26.7–29.9 | 0.25–0.31 | Yes |
Air Putih River | M | 5.1 | 14–15 | 0.5–1.5 | 26.3 | 0.02 | No |
Titi Teras River | U | 7.9 | 50–75 | 0.2–0.5 | 25.8 | 0.02 | No |
Titi Teras River | M | 4.9 | 19–23 | 0.5–2.0 | 26.5 | 0.02 | No |
Pondok Upeh River | M | 5.8 | 13–15 | 0.1–0.5 | 28 | 0.03 | No |
Pulau Betung River | M | 0.9 | 5–10 | 0.5–1.0 | 30.2 | 0.15 ( low tide) | Yes |
Bayan Lepas River | M | 2.3 | 12–14 | 0.5–1.0 | 26.9 | 0.03 | No |
Perak State | |||||||
Perak River | U | 197 | 41 | 7.0–13.0 | 28.1 | 0.01 | No |
