Fig. 2

Abundance of coral spat, filamentous algae, crustose algae and fouling organisms after 2 months: November 2005–January 2006 (blank), January–March 2006 (dotted), indicates seasonality. The y-axis represents the categories of abundance/density: 1 = very low, 5 = very dense/high abundance. Box: lower/upper quartile and median (bold black line); whisker (vertical line): extend of rest of the data; outliers: circle: measured value is higher/smaller than the upper/lower quartile +1.5× quartile distance, star: measured value is higher/smaller than the upper/lower quartile +3× quartile distance