Table 1. Environmental DNA sample collection sites with physico-chemical parameters of the four Korean rivers.
| River | Date | Station | GPS location | Temp. (°C) | Salinity (PSU) |
|---|---|---|---|---|---|
| Hyeongsan | 2018.06.11 | HS1 | N35°42′36″, E129°11′42″ | 18.6 | 1.00 |
| HS2 | N35°56′14″, E129°14′24″ | 19.5 | 2.02 | ||
| HS3 | N35°59′32″, E129°17′19″ | 20.0 | 3.20 | ||
| HS4 | N36°01′51″, E129°23′01″ | 24.0 | 20.20 | ||
| Taehwa | 2018.06.11 | TH1 | N35°32′52″, E129°06′27″ | 19.4 | 1.02 |
| TH2 | N35°35′07″, E129°13′52″ | 19.8 | 2.04 | ||
| TH3 | N35°32′42″, E129°17′38″ | 22.7 | 14.02 | ||
| TH4 | N35°32′39″, E129°21′24″ | 19.2 | 17.80 | ||
| Seomjin | 2018.06.12 | SJ1 | N35°11′18″, E127°37′21″ | 24.2 | 0.15 |
| SJ2 | N35°04′30″, E127°43′35″ | 23.4 | 2.01 | ||
| SJ3 | N35°01′54″, E127°46′32″ | 23.0 | 12.9 | ||
| SJ4 | N34°58′01″, E127°45′28″ | 23.25 | 16.8 | ||
| Nakdong | 2018.06.12 | ND1 | N35°23′19″, E128°29′09″ | 24.0 | 1.92 |
| ND2 | N35°20′40″, E128°46′26″ | 24.1 | 2.40 | ||
| ND3 | N35°17′57″, E128°58′37″ | 23.2 | 2.78 | ||
| ND4 | N35°07′13″, E128°57′07″ | 22.5 | 4.50 |