The Bluefin Trevally, Bluefin Jack, Bluefin Kingfish, Bluefinned Crevalle, Blue Ulua, Omilu, Spotted Trevally, scientifically known as Caranx melampygus, is a captivating fish species found in tropical and subtropical waters worldwide. This species, which is a member of the jack family (Carangidae), stands out with its distinctive bluefin coloration and bold markings, making it a popular target for both recreational and commercial fishing.
Description & Characteristics
The Caranx melampygus is characterized by its elongated, compressed body, typically reaching a maximum size of 117.0 cm. Its most prominent feature is the striking blue coloration of its dorsal fin, which extends to the caudal fin. The body is covered in small, widely spaced scales, with a distinctive black spot near the base of the pectoral fin. This spot, along with its vibrant bluefin, serves as a distinguishing mark for the species. Its head is relatively small and streamlined, equipped with a large, terminal mouth filled with sharp teeth.
Habitat and Occurrence
Caranx melampygus exhibits a remarkable adaptability, thriving in a diverse range of habitats within the marine environment. It is commonly found in atolls, bays, coral reefs, intertidal zones, tidal zones, lagoons, rivers, and the water column. This wide distribution reflects its ability to navigate both shallow and deeper waters, from the intertidal zone to depths of up to 190.0 meters. Caranx melampygus typically inhabits the Subtidal, sublittoral, infralittoral, and deep zones of the oceans, particularly within the neritic zone – the coastal area extending from the shore to the edge of the continental shelf, roughly 200 meters deep. This marine zone provides a rich habitat for this species to thrive.
Taxonomy
The Caranx melampygus belongs to the Class: Teleostei, Order: Carangiformes, and Family: Carangidae. This classification places it among the bony fishes, specifically within the order containing jacks, scads, and pompanos. The Carangidae family encompasses a diverse group of fish species, known for their streamlined bodies and predatory habits.
Distribution and Occurrence
The Bluefin Trevally, Bluefin Jack, Bluefin Kingfish, Bluefinned Crevalle, Blue Ulua, Omilu, Spotted Trevally exhibits a wide geographic distribution, inhabiting tropical and subtropical waters across the globe. It can be found in the eastern and western Atlantic Ocean, the Indian Ocean, and the Pacific Ocean. Its occurrence within the Subtidal, sublittoral, infralittoral, and deep zones of the oceans, particularly within the neritic zone, highlights its adaptability to varying marine environments.
Feeding
The Caranx melampygus is a predatory fish, exhibiting a diverse diet that reflects its opportunistic feeding habits. Its primary prey includes crustaceans and fish, with a particular preference for smaller fish. Its strong, sharp teeth allow it to efficiently capture and consume its prey, demonstrating its efficient hunting capabilities. This carnivorous nature places it at the top of the food chain within its respective ecosystems, playing a crucial role in maintaining ecological balance.
Image References