Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Perciformes
- Family
- Kyphosidae
- Genus
- Medialuna
- Species
- californiensis
Habitat
Halfmoons primarily inhabit rocky reefs and kelp forests in the eastern Pacific Ocean, from Vancouver Island, Canada, to Baja California, Mexico. They prefer depths of 1 to 30 meters where there is ample cover and food sources. These areas provide protection from predators and access to algae-rich environments.
Diet
Halfmoons mainly feed on algae and seaweed, grazing on these plants along rocky substrates during the day. They are herbivorous but may occasionally consume small invertebrates like crustaceans. Feeding activity peaks in the morning and late afternoon when they forage in schools.
Behavior
Halfmoons are schooling fish that form loose groups to forage and evade predators, often seen swimming near the bottom of reefs. They are diurnal, active during the day and resting in crevices at night. They exhibit mild territorial behavior around feeding areas but are generally non-aggressive toward other species.
Conservation Status
Listed as Least Concern by IUCN.