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. 2021 May 26;22(11):5686. doi: 10.3390/ijms22115686

Table A4.

Summary of fish behavioral endpoints measured in each behavioral test during this experiment.

Index Behavior Endpoints (Units) Definition Applied to
1-1-1 & 1-2-1 Average speed (cm s−1) Total distance traveled by fish divided by total time duration Novel Tank Test
(1-1 for 0–11 min and 1-2 for 15–31 min)
1-1-2 & 1-2-2 Freezing time movement ratio (%) Total percentage of time when fish’s speed less than 1 cm s−1
1-1-3 & 1-2-3 Swimming time movement ratio (%) Total percentage of time when fish’s speed is between 1 and 10 cm s−1
1-1-4 & 1-2-4 Rapid movement ratio (%) Total percentage of time when fish’s speed more than 10 cm s−1
1-1-5 & 1-2-5 Time in top duration (%) Total time spent in the top portion of the novel tank in percentage
1-1-6 & 1-2-6 Number of entries to the top Total times fish enter the upper half of the tank
1-1-7 & 1-2-7 Latency to enter the top (s) The amount of time it takes the fish to cross into the upper half of the tank
1-1-8 & 1-2-8 Total distance traveled in the top (cm) Total distance traveled in the top portion of the novel tank
1-1-9 & 1-2-9 Thigmotaxis (cm) The average distance of the fish from the center of the tank
2-1 Mirror biting time percentage (%) Total percentage of time when fish stayed in the mirror biting zone Mirror Biting Test
2-2 Longest duration in the mirror side percentage (%) Total percentage of fish longest duration stayed in the mirror biting zone
3-1 Approaching predator time percentage (%) Total percentage of time when fish stayed in the approaching predator zone Predator Avoidance Test
3-2 Average distance to the predator’s separator (cm) Average distance of fish to the predator’s separator
4-1 Conspecific interaction time percentage (%) Total percentage of time when fish stayed in the conspecific interaction zone Social Interaction Test
4-2 Average distance to the conspecific’s separator (cm) Average distance of fish to the conspecific’s separator
4-3 Longest conspecific interaction percentage (%) Total percentage of fish longest duration stayed in the conspecific interaction
5-1 Average inter-fish distance (cm) Average distance between the body center of every member of the shoal Shoaling Test
5-2 Average shoal area (cm2) Average size of the shoal
5-3 Average nearest neighbor distance (cm) Distance for the body center of each fish to the closest neighboring fish
5-4 Average farthest neighbor distance (cm) Distance for the body center of each fish to the farthest neighboring fish
6-1-1 & 6-2-1 Average speed (cm s−1) Total distance traveled by fish divided by total time duration Circadian Locomotor Activity Rhythm
(6-1 for day cycle and 6-2 for night cycle)
6-1-2 & 6-2-2 Average Angular Velocity (°/s) Total turning angle of fish divided by total time duration
6-1-3 & 6-2-3 Meandering (°/m) Total turning angle of fish divided by total distance traveled by fish
6-1-4 & 6-2-4 Freezing time movement ratio (%) Total percentage of time when fish’s speed less than 1 cm s−1
6-1-5 & 6-2-5 Swimming time movement ratio (%) Total percentage of time when fish’s speed is between 1 and 10 cm s−1
6-1-6 & 6-2-6 Rapid movement ratio (%) Total percentage of time when fish’s speed more than 10 cm s−1