Table 1 Trajectometry indexes and their units evaluated in displacements and inactivity of Acropora palmata larvae exposed to five treatments (control, stain, and 25%, 50% and 100% leachates).

Trajectometry indexes	Unit
*Global*
1) Mean displacement-length per larva	mm
2) Mean displacement-time per larva	s
3) Mean displacement-speed per larva^a	mm/s
4) Mean number of displacements per larva^b	count
5) Mean number of times of inactivity per larva^c	count
6) Mean time of an inactivity interval per larva	s
7) Percentage of larvae with spiral displacement	%
8) Mean spiral displacement-length per larva	mm
9) Mean spiral displacement-time per larva	s
10) Mean spiral displacement-speed per larva	mm/s
*Specific*
*Surface*
11) Mean displacement-length per larva	mm
12) Mean displacement-time per larva	s
13) Mean displacement-speed per larva^a	mm/s
*Bottom*
14) Mean displacement-length per larva	mm
15) Mean displacement-time per larva	s
16) Mean displacement-speed per larva^a	mm/s

^aIn this trajectometry index, only continuous activity per larva was considered. In other words, the time of inactivity (i.e., at rest or motionless) of each larva was excluded.
^bThe trajectometry per larva during each video was divided in displacements. Each displacement included a beginning and an end. When a larva modified its behavior, the last movement was defined as the end of the displacement, and the next new movement was defined as the beginning of a new displacement and so on.
^cNumber of times in which a larva was inactive or motionless during its trajectory.

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