| J | F | M | A | M | J | J | A | S | O | N | D | Country | Locality |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 111 | 111 | 111 | Thailand | Mekong basin at Chiang Khong | |||||||||
| 111 | Laos | Mekong basin at Hatsakhoun Village near Khong Island | |||||||||||
| 111 | 111 | Thailand | Mekong basin at Loei | ||||||||||
| 111 | Laos | Mekong basin at Sambor | |||||||||||
| 111 | 111 | Laos | Mekong basin at Savannakhet-Mukdahan | ||||||||||
| 111 | 111 | 111 | Thailand | Mekong basin at Savannkhet-Mukdahan | |||||||||
| 111 | 111 | 111 | 111 | Mekong mainstream |