Arrow bulleye – Priacanthus sagittarius

The Arrow Bulleye (Priacanthus sagittarius) is a species of fish belonging to the family Priacanthidae. Its distinctive appearance and unique characteristics make it an intriguing subject of study for marine biologists and enthusiasts alike. This species is found in a variety of marine habitats and plays a crucial role in the delicate balance of its ecosystem.

Description & Characteristics

The Arrow Bulleye is a relatively small fish, reaching a maximum size of 35.0 cm. Its body is characterized by a deep, compressed shape, with a prominent, upward-pointing snout that resembles an arrowhead, hence its common name. The eyes are large and protuberant, further contributing to its distinctive appearance. The color of Priacanthus sagittarius varies depending on its habitat and age, but it generally features a reddish-brown body with silvery-white markings on its sides.

Habitat and Occurrence

The Arrow Bulleye (Priacanthus sagittarius) is primarily found in tropical and subtropical waters, typically residing in coral reefs, rocky outcrops, and seamounts. It is a common inhabitant of the Indo-Pacific region, ranging from the eastern coast of Africa to the western coast of the Americas. This species can be found in depths ranging from 10 to 200 meters, demonstrating its ability to thrive in a variety of underwater environments.

Taxonomy

The species Priacanthus sagittarius belongs to the Class: Teleostei, Order: Eupercaria incertae sedis, and Family: Priacanthidae. This family, often referred to as the “bigeye fish,” encompasses a diverse range of species, most of which are characterized by their large eyes and deep, compressed bodies.

Feeding

The Arrow Bulleye (Priacanthus sagittarius) is an opportunistic predator, relying on its keen eyesight and swift movements to capture prey. Its diet consists primarily of fish larvae, krill, mysids, plankton, and zooplankton. This predatory behavior plays an important role in regulating the populations of its prey species, contributing to the overall health and balance of the marine ecosystem.