| Taxon/Drainage | 0 | 20 | 40 | 60 | 80 | 100 | mean | n | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | mean | n |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E. r. rupestre Black Warrior River North River Tombigbee River | 2 1 - | 12 5 6 | 8 2 2 | 12 26 13 | 27 35 11 | 44 54 21 | 74.7 80.8 74.7 | 105 123 53 | 7 2 - | 9 3 3 | 11 3 8 | 13 5 17 | 9 34 17 | 28 42 6 | 15 21 2 | 9 11 - | 4 2 - | 51.0 57.9 44.0 | 105 123 53 |
| E. r. piersoni Cahaba River Alabama River | - - | - - | - - | - - | 6 19 | 23 28 | 95.9 91.9 | 29 47 | - - | - - | - - | 1 5 | 7 15 | 13 14 | 6 10 | 2 2 | - 1 | 60.3 58.3 | 29 47 |
| E. r. uphapeense Uphapee Creek Hatchet Creek Etowah River Conasauga River | - - - - | - - - - | - - 1 - | 1 - - 1 | 4 2 - 1 | 29 9 1 3 | 96.5 96.4 70.0 88.0 Total | 34 11 2 5 409 | - - - - | - - - 1 | 1 2 - - | 11 - 1 - | 13 4 1 1 | 5 4 - 1 | 4 1 - 2 | - - - - | - - - - | 50.0 51.8 45.0 54.0 Total | 34 11 2 5 409 |