Table 3 Comparison of step lengths estimating linear distances between yellow perch centres of activity (COAs) for each day before and after apparent predation
From: Identification of predation events in wild fish using novel acoustic transmitters
Fish ID | Before predation | After predation | Comparison | |||
|---|---|---|---|---|---|---|
Daily mean step lengths (m) | Number of days | Daily mean step lengths (m) | Number of days | Difference in daily means (m) | Change | |
YP02 | 848.8 ± 72.2 | 42 | 99.8 | 1 | − 747.0 | − 88% |
YP10 | 860.0 ± 171.0 | 9 | 1445.0 ± 970.3 | 2 | + 585.0 | + 68% |
YP12 | 764.0 ± 100.9 | 33 | 400.1 ± 92.8 | 18 | − 364.0 | − 48% |
YP17 | 454.9 ± 71.8 | 18 | – | – | – | – |
YP19 | 482.2 ± 60.9 | 53 | 473.3 ± 70.1 | 11 | − 9.0 | − 2% |
YP22 | 541.0 ± 86.4 | 14 | 334.8 ± 273.1 | 2 | − 206.2 | − 38% |
YP23 | – | – | 755.69 ± 413.1 | 3 | – | – |
YP26 | 432.2 ± 59.7 | 24 | – | – | – | – |
YP33 | – | – | 78.1 | 1 | – | – |
YP34 | 519.6 ± 234.0 | 2 | 982.83 ± 14.4 | 2 | + 463.2 | + 89% |
YP38 | 413.0 ± 55.8 | 45 | 317.6 | 1 | − 95.4 | − 23% |
YP39 | 379.6 ± 62.1 | 30 | – | – | – | – |
YP42 | – | – | 199.6 | 1 | – | – |
YP43 | 230.7 ± 85.5 | 16 | 109.5 | 1 | − 121.2 | − 53% |
YP44 | 216.1 ± 59.3 | 11 | 1870.9 ± 1055.3 | 3 | + 1654.7 | + 766% |
YP47 | 555.5 ± 87.1 | 24 | – | – | – | – |
YP51 | 172.0 | 1 | 51.3 | 1 | − 120.6 | − 70% |
YP54 | 207.2 ± 17.4 | 15 | 50.5 | 1 | − 156.7 | − 76% |