#kelp-grazer

2 articles

Greenbone (Odax pullus): New Zealand's Kelp-Eating Butterfish

The greenbone — also called butterfish — is New Zealand's own kelp grazer, a beak-toothed odacid that changes sex, varies in colour, and moves kelp energy into fish.

Dr. Theo Nakamura · July 5, 2026

Encyclopedia7 min read

Herring Cale (Olisthops cyanomelas): Southern Australia's Kelp Mower

The herring cale is a cigar-shaped, beak-toothed herbivore that grazes kelp across the Great Southern Reef — and moves its energy up the food web.

Dr. Theo Nakamura · June 21, 2026

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