What does cobia mean?
The cobia (Rachycentron canadum) is a large, streamlined marine fish found in warm and temperate oceans around the world. It is the only member of its family, Rachycentridae, and is easily recognized by its broad, flat head, dark brown body marked with a pale lateral stripe, and shark-like profile. Cobia are powerful swimmers often seen following sharks, rays, turtles, and other large animals — a habit that makes them conspicuous to anglers, who prize them as hard-fighting sportfish. They feed on crustaceans, squid, and small fish, earning regional nicknames such as 'crabeater' and 'lemonfish' in parts of the United States. Beyond recreational fishing, cobia have become an important aquaculture species, farmed for their firm, mild-flavored white flesh, which appears on restaurant menus as a premium substitute for more heavily harvested species.
nounA large, fast-swimming marine fish (Rachycentron canadum) of warm oceans worldwide, valued as a sportfish and increasingly farmed for food.
- The marine fish Rachycentron canadum, the sole member of the family Rachycentridae, found in warm waters worldwide and prized both as gamefish and aquaculture species.
"The charter captain spotted a cobia cruising alongside the ray and cast a live eel ahead of it."
"A sixty-pound cobia hit the bait just as the stingray surfaced off the sandbar."
"The menu featured pan-seared cobia with a citrus beurre blanc."
Both 'cobia' (unchanged) and 'cobias' are accepted plurals, mirroring usage of many fish names.
"We hooked three cobia off the channel marker before noon."
Cobia shadow sharks, rays, and turtles like remoras — which is exactly why anglers call them 'crabeaters' and hunt them by scanning for rays instead of fish.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cobia
The word 'cobia' entered English in the early 18th century from Portuguese, where 'cóbua' or similar forms were applied to the fish; its ultimate deeper origins are uncertain, and no secure cognates are established.
How cobia is actually used
In American coastal usage, especially along the Gulf and Atlantic coasts of the US, regional names such as lemonfish, ling, and crabeater are common alongside 'cobia'. The word is used both for the live fish and for it on menus.
Easily confused with cobia
'Ling' is sometimes used as an alternate name for cobia in parts of the American Southeast, but elsewhere it refers to unrelated fishes such as the cod-like Molva molva of the North Atlantic.