p.42; in ....
Hughes T.P., Reed D.C. Boyle M.J.; 1987; Herbivory on coral reefs: community structure following mass
mortalities of sea urchins; J.of Exp.Mar.Biol.Ecol.; 113: 39-59;
not even the increase in herbivorous fish could compensate the ecosystemic shift;
p.79; in ....
Carpenter R.C.; 1997; Invertebrate Predators and Grazers;
in Birkeland C. (ed.); Life and Death of Coral Reefs; Chapman and Hall London - UK;