Grazing by the Echinoid Diadema antillarum Philippi: Formation of Halos around West Indian Patch Reefs.
Between patch reefs and marine grass communities there is normally a zone or "halo" of heavily grazed grass 2 to 10 meters wide. Grazing by the echinoid Diadema antillarum Philippi during nocturnal migrations off the reefs is found to be the major factor in the formation of halos.
Ogden
J C
JC
Brown
R A
RA
Salesky
N
N