Phase 1. Environment perception
Differences in perceptions will be estimated as the capacity to recognize a suitable habitat after the reseeding. Specifically, we will estimate the time taken by each single recruit to reach the rocky habitat covered with algae (food and refuge) from a known distance in the bare sand. Observations will be made approximatively on 50 reared and 50 wild recruits, in the same weather conditions (light intensity and no swell).