Shark and Ray Abundance (IMAGE)

University of California - Santa Barbara

Shark and Ray Abundance

Caption

Predation pressure affects how far herbivorous fish will feed from reefs. These ‘halos’ are larger when apex predators keep smaller predators in check, decrease when smaller sharks proliferate, and grow again when these sharks decline. Without any sharks, the entire area gets mowed bare.

Credit

Dedman & Moxley et al.

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License

CC BY-NC-ND

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