Table 2
Number of migrating eels (total and by passage way) and passage time through the bypass (Pt) by site and studied season.
| Nb of migrating eels (+during HPP stops) | Nb of eels crossing through | Passage time Pt (min) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Dam | HPP intake & bypass (with known Pt) | 25th percentile | Median | 75th percentile | 90th percentile | Max. | |||
| Crampagna | 2017–2018 | 59 (+19) | 44 | 15 (15) | 1 | 1 | 4.5 | 23.6 | 46 min |
| 2018–2019 | 75 | 22 | 53 (53) | 1 | 2 | 6 | 131 | 64 days | |
| Total | 134 | 66 | 68 (68) | 1 | 2 | 5 | 54.7 | 64 days | |
| Las Rives | 2017–2018 | 50 (+24) | 31 | 19 (19) | 1 | 2 | 3.5 | 12.6 | 29 min |
| 2018–2019 | 63 | 12 | 51 (51) | 2 | 5 | 14 | 1058 | 7.5 days | |
| Total | 113 | 43 | 70 (70) | 1.3 | 4 | 12 | 427.7 | 7.5 days | |
| Las Mijeannes | 2017–2018 | 54 (+16) | 26 | 28 (24) | 1 | 1 | 2 | 2 | 4 min |
| 2018–2019 | 51 | 5 | 46 (46) | 1 | 1 | 3 | 15.5 | 73 days | |
| Total | 105 | 31 | 74 (70) | 1 | 1 | 2 | 10.4 | 73 days | |
| Guilhot | 2017–2018 | 47 (+13) | 26 | 21 (19) | 1 | 1 | 2 | 4 | 12 min |
| 2018–2019 | 40 | 9 | 31 (31) | 1 | 2 | 4.5 | 1395 | 20 days | |
| Total | 87 | 35 | 52 (50) | 1 | 2 | 3.5 | 111.9 | 20 days | |
| All sites and years | 439 | 175 | 264 (258) | 1 | 2 | 5 | 38 | 73 days | |
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