cover or abundances and richness of the four groups to
the water quality index(WQI) scores of individual reefs.
For macroalgae, total cover was highly variable, but
cover tended to increase from a mean of 5% to 18%
within WT with increasing WQI—i.e., increasing con-
centrations of particulate and dissolved nutrients, sus-
pended solids and chlorophyll (
Fig. 4
)