Pseudocaranx
Pseudocaranx is a genus of marine fish belonging to the jack family, Carangidae. They are commonly known as jacks, trevallies, or amberjacks. The genus contains five recognized species, all found in the tropical and subtropical waters of the Indo-Pacific region. These fish are characterized by their elongated, fusiform bodies, forked tails, and prominent lateral lines.
Common Names
Members of the genus Pseudocaranx are commonly known as:
- Jacks
- Trevallies
- Amberjacks
Characteristics
Pseudocaranx species share several distinguishing characteristics:
- Elongated, fusiform body: They have a streamlined, torpedo-shaped body that is well-suited for fast swimming.
- Forked tail: Their tails are deeply forked, providing powerful propulsion in the water.
- Prominent lateral line: The lateral line is a sensory canal that runs along the side of the body. In Pseudocaranx, it is strongly curved.
- Scutes: They have a series of bony plates called scutes along the lateral line, which provide additional protection.
- Dorsal fin: They have two dorsal fins, the first being a spiny fin and the second being soft-rayed.
- Anal fin: They have two anal fins, the first being spiny and the second being soft-rayed.
- Teeth: Their teeth are generally small and pointed, but some species have larger canines.
Environment
Pseudocaranx species are primarily found in tropical and subtropical waters of the Indo-Pacific region. They inhabit a variety of marine environments, including:
- Coral reefs: They are common residents of coral reefs, where they feed on smaller fish and invertebrates.
- Estuaries: Some species are found in estuaries, where they feed on small fish and crustaceans.
- Open ocean: Others are pelagic species, spending their lives in the open ocean.