scubaseason

Horse-Eye Jack

Caranx latus

Sighting evidence at Mustique Wall, Saint Vincent and the Grenadines

Horse-Eye Jack

Photo: Kevin Bryant · CC BY-NC-SA

Dense schools of horse-eye jacks of several hundred individuals wheel in coordinated spirals at the reef crest of Mustique Wall, particularly in the morning hours before dispersing to hunt across the reef. Their large eyes give them a visual advantage in the low-light conditions of early morning hunting, and their schooling behaviour provides safety in numbers against the resident sharks. Watching a jack school react to a shark pass — flashing silver as individuals shift simultaneously — is one of the most dramatic spectacles Caribbean reef diving offers.

Evidence at this site

No confirmed records on file at this site

Horse-Eye Jack is listed as a curated species here based on historical reports.

How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites