Open Access
Table 2
CPUE, CPUOE, contribution of YOY (%) to total catch and sex ratio obtained with the two control methods tested in stream pools during the control campaign.
| Method | Pool | CPUE | CPUOE (crayfish h−1) | YOY (%) | Sex ratio (male/female) |
|---|---|---|---|---|---|
| Cylindrical crayfish traps | P1 | 0.6 (0.5 ± 0.5) crayfish trap−1 d−1 | 1.9 (2.2 ± 2.0) | 15 | 0.8 |
| P2 | 3.1 (3.1 ± 1.2) crayfish trap−1 d−1 | 10.5 (12.5 ± 4.9) | 79 | 1.1 | |
| P3 | 1.3 (1.3 ± 1.7) crayfish trap−1 d−1 | 4.2 (5.0 ± 6.7) | 100 | – | |
| P4 | 9.7 (9.9 ± 8.4) crayfish trap−1 d−1 | 32.5 (39.6 ± 33.5) | 5 | 1.1 | |
| P5 | 1.3 (1.3 ± 0.9) crayfish trap−1 d−1 | 4.3 (5.2 ± 3.6) | 42 | 1.2 | |
| All pools | 3.4 crayfish trap−1 | 13.7 | 25 | 1.1 | |
| Horizontal hauls with a fish keeping net | P1 | 1.0 crayfish (netting session) −1 d−1 | 6.4 | 100 | – |
| P2 | 54.6 crayfish (netting session) −1 d−1 | 186.3 | 99 | 0.7 | |
| P3 | 7.3 crayfish (netting session) −1 d−1 | 42.6 | 100 | – | |
| P4 | 37.4 crayfish (netting session) −1 d−1 | 182.4 | 89 | 4.3 | |
| P5 | 11.7 crayfish (netting session) −1 d−1 | 45.7 | 94 | 3.0 | |
| All pools | 27.4 crayfish (netting session) −1 | 112.3 | 96 | 2.7 |
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