Range and Identity
Acanthurus blochii ranges from East Africa and the Mascarene region toward Hawaii and the Society Islands, with northern and southern subtropical records. The scientific name helps separate this species from other surgeonfishes whose tail markings can look similar in an incomplete photograph.
Habitat and Behavior
Adults use outer lagoons and seaward reefs. They are often seen in small groups, while schooling is reported in some island settings. Those observations describe flexible grouping rather than a single social pattern that must appear in every reef sighting.
Food and Life History
The upper reference is forty-five centimeters standard length. Feeding includes algal film, diatoms and detritus, with sand swallowed during grazing. A suggested role for that sand in processing food remains an interpretation, not an experimentally demonstrated requirement for every fish.
Field Note
Note the surface being grazed rather than recording only the presence of coral nearby. Compacted sandy patches can have a direct feeding role within the wider reef landscape.
All Lakes With Ringtail Surgeonfish
Browse all lakes and reservoirs with confirmed Ringtail Surgeonfish records in our database, listed alphabetically.
Showing 1–1 of 1 lakes · Page 1 of 1
- Heʻeia Pond Honolulu, HI