Table 2.
Definitions and explanatory values for the 16-movement metrics used to classify movement behaviours of golden perch in the Condamine-Balonne River
| Movement metric | Value range (Mean ± SD)* | Definition | Abbreviation |
|---|---|---|---|
| n. detected movements | 0–25.92 (2.83 ± 4.08) | Number of times the individual was detected on a different receiver than their previous detection (n) | nodm |
| Cumulative distance | 0–197.18 (23.8 ± 38.29) | Total distance moved (km) | cum_dist |
| Upstream cumulative distance | 0–167.37 (11.54 ± 23.46) | Total distance moved travelling upstream (km) | upstream |
| Downstream cumulative distance | 0–153.19 (12.26 ± 22.47) | Total distance moved travelling downstream (km) | downstream |
| Linear range | 0–85.3 (10.76 ± 18.91) | The distance between the most upstream and downstream detection (km) | range |
| Rate of movement | Distance of movement divided by time taken to complete movement (km/hr) | rom | |
| Mean | 0–1.6 (0.23 ± 0.29) | ||
| Max | 0–3.55 (0.51 ± 0.68) | ||
| Continuous distance moved | Distance moved in a continuous movement. Movement streaks are ended when an individual is detected on the same receiver on consecutive days, or remains undetected for > 3 days (km) | cont_dist | |
| Median | 0–70.53 (8.83 ± 13.83) | ||
| Max | 0–167.37 (13.74 ± 23.85) | ||
| Continuous duration moved | Duration of a continuous movement. Movement streaks are ended when an individual is detected on the same receiver on consecutive days or remains undetected for > 3 days (days). | cont_dur | |
| Median | 0–5.39 (1.91 ± 1.63) | ||
| Max | 0–11.01 (2.61 ± 2.4) | ||
| Percentage of accessible river used | 0–336.89 (24.86 ± 51.62) | Linear range divided by the accessible river extent (distance between nearest upstream and downstream barrier [37] from the receiver on which an individual was most commonly detected; %). | area_used |
| Proportion of movements by hydrological ‘limb’ | Flow from each day was categorised into one of four (base, rising, peak, and receding) hydrological limbs, and the proportion of each individual’s movements by limb was calculated (%). | ||
| Base | 0–100 (28.42 ± 31.7) | mov_base | |
| Rising | 0–100 (11.93 ± 20.56) | mov_rise | |
| Peak | 0–33.33 (2.25 ± 6.67) | mov_peak | |
| Receding | 0–100 (13 ± 18.62) | mov_recede |
*Movement metric values were standardised by each individual’s time in the array and converted to the average per year