Table 2
Settings of the electrofishers (associated with waveform codes) during application of the Eel Abundance Index (EAI) and Salmonid Abundance Index (SAI-2015 and SAI-2017) protocols, with the radius of attraction (RADAC) its associated power density. For the RADAC, four measurements were taken. Values in brackets: standard error.
| Protocol | Waveforms code | Engine | Cathode dimensions | Anode dimensions | Waveforms | Frequency (Hz) | Pulse width (ms) | Peak voltage at the anode (V) | RADAC (cm) | Power density (μW.cm−3) |
|---|---|---|---|---|---|---|---|---|---|---|
| EAI | PDC-0Hz | Hans Grassl® ELT60II GI Honda GXV50 (1300 W) | Length: 150 cm, width: 2.5 cm, thickness: 0.3 cm | diameter: 35 cm ; gauge : 0.6 cm | DC | n/a | n/a | 228 | 174 (1) | 1.45 |
| PEC-20Hz | Imeo® Volta (80 W) | Length: 120 cm, diameter: 0.5 cm | diameter: 35 cm ; gauge : 1.6 cm | PEC | 20 | 2.25 | 139 | 187 (1) | 1.45 | |
| PDC-20Hz | Smith Root® LR-24 (400 W) | Length: 110 cm, diameter: 0.5 cm | diameter: 35 cm ; gauge : 0.6 cm | PDC | 20 | 12.5 | 153 | 172 (2) | 1.45 | |
| PDC-400Hz | Dream Electronique® Martin-Pêcheur (240 W) | Length: 110 cm, diameter: 0.5 cm | diameter: 35 cm ; gauge : 1.6 cm | PDC | 400 | 0.48 | 194 | 184 (8) | 1.45 | |
| SAI-2015 | PDC-0Hz | Hans Grassl® ELT60II GI Honda GXV50 (1300 W) | Length: 150 cm, width: 2.5 cm, thickness: 0.3 cm | diameter: 35 cm ; gauge : 0.6 cm | DC | n/a | n/a | 215 | 150 (0) | 1.84 |
| PEC-40Hz | Imeo® Volta (80 W) | Length: 120 cm, diameter: 0.5 cm | diameter: 35 cm ; gauge : 1.6 cm | PEC | 40 | 2.25 | 139 | 154 (5) | 1.84 | |
| PDC-40Hz | Smith Root® LR-24 (400 W) | Length: 110 cm, diameter: 0.5 cm | diameter: 35 cm ; gauge : 0.6 cm | PDC | 40 | 6.25 | 153 | 148 (2) | 1.84 | |
| PDC-100Hz | Dream Electronique® Martin-Pêcheur (240 W) | 4 braids (length: 85 cm, width: 1 cm, tickness: 0,3 cm) | diameter: 35 cm ; gauge : 1.6 cm | PDC | 100 | 0.40 | 160 | 160 (5) | 1.84 | |
| SAI-2017 | PDC-0Hz | Hans Grassl® ELT60II GI Honda GXV50 (1300 W) | Length: 150 cm, width: 2.5 cm, thickness: 0.3 cm | diameter: 35 cm ; gauge : 0.6 cm | DC | n/a | n/a | 190 | 174 (5) | 2.07 |
| PDC-50Hz | Smith Root® LR-24 (400 W) | Length: 110 cm, diameter: 0.5 cm | diameter: 35 cm ; gauge : 0.6 cm | PDC | 50 | 25 | 178 | 188 (7) | 2.07 | |
| PDC-100Hz | Dream Electronique® Martin-Pêcheur (240 W) | 4 braids (length: 85 cm, width: 1 cm, tickness: 0,3 cm) | diameter: 35 cm ; gauge : 1.6 cm | PDC | 100 | 10.70 | 213 | 204 (6) | 2.07 | |
| PDC-400Hz | Dream Electronique® Martin-Pêcheur (240 W) | 4 braids (length: 85 cm, width: 1 cm, tickness: 0,3 cm) | diameter: 35 cm ; gauge : 1.6 cm | PDC | 400 | 12.70 | 213 | 192 (6) | 2.07 |
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