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Parrotfish support healthy coral reefs, but they’re not a cure-all, and sometimes cause harm

By Lorenzo Alvarez-Filip, Professor of Marine Ecology, Universidad Nacional Autónoma de México (UNAM)
Ana Lilia Molina Hernández, Postdoctoral research fellow, Universidad Nacional Autónoma de México (UNAM)

A widely held view in ocean conservation asserts that parrotfish are key to healthy coral reefs. But evidence suggests that the relationship is more complicated.

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