Seafloor vegetation map of man-made boulders reef by underwater photogrammetry: Suggestions for site selections in macroalgal bed creations
Fig 6
Vegetation scores for bottom type and geomorphic indicators.
Plots of (a) vegetation scores and relative height, (b) vegetation scores and surface complexity on sandy bottom and natural cobble/boulder bottom. In these plots, the vegetation scores were shown by adding +0.1 on sandy bottom and −0.1 on natural cobble/boulder bottom for visualization. (c) Boxplots of geomorphic indicators with bottom type and vegetation richness. The box plots display the median (central line), the interquartile range (box), and the whiskers extending to the most extreme data points not considered outliers. Outliers are shown as individual dots. Asterisks denote statistically significant differences (p < 0.01, t-test). Plots of relative height and surface complexity (d) on sandy bottom, and (e) on natural cobble/boulder bottom.