highly significantp = 0.0015
These observations are confirmed by median tests comparing the intensity of bleaching between both events, which show highly significant differences for all five species in September/October ( p = 0.0015 in all cases), for two species in February ( O. annularis , p = 0.0396; P. astreoides , p = 0.0496), and just one species in June ( O. annularis , p = 0.0360) ( Table 1 ).