Species

Cobia

Cobia, a curious, shark-like loner that follows rays, turtles and buoys and moves north along the Gulf Coast and Florida in spring.

Rachycentron canadum

Photo: Jorge Alarcon or Dr. Daniel Benetti, Wikimedia Commons, Public domain, adjusted to 3:2

Spawning: In the western Atlantic spawning aggregations form in the warm months (FishBase); according to Wikipedia from April to September, by day in large offshore groups, and a female can spawn up to 30 times a season. Males mature at two, females at three years (Wikipedia).
Typical method: Sight fishing: look for fish around rays, turtles, buoys and debris and cast to them (Wikipedia, rule of thumb)
Top bait: Live crab

Plan a day fishing for Cobia

How to recognise it

Broad, flat head and six to nine short, stout, free spines in front of the long dorsal fin (FishBase, Wikipedia)
Dark brown with pale silvery stripes along the flanks, belly yellowish to white (FishBase, German Wikipedia)
Large pectoral fins held horizontally, giving a shark-like outline in the water (Wikipedia)

Easily confused with: Remoras: close relatives that look similar, but with a sucker disc on the head and a slimmer body (Wikipedia). In the water a cobia is easily mistaken for a small shark because of its pectoral fins and dark colour (Wikipedia).

How to catch it

Methods: Sight fishing: look for fish around rays, turtles, buoys and debris and cast to them (Wikipedia, rule of thumb), Fish wrecks, reefs, pilings and harbour structures where cobia gather (Wikipedia), Cast a heavy bucktail jig or soft plastic in front of the fish (rule of thumb), Live bait on the bottom or free-lined (rule of thumb)

Baits: Live crab, Live baitfish, Squid, Bucktail jig, Large soft plastic

Winters in the Gulf of Mexico and moves north as far as Massachusetts in summer, passing Florida around March (Wikipedia). The April to September spawning season brings aggregations offshore (Wikipedia).

Habitat and food

Worldwide in tropical and subtropical seas, absent from the eastern Pacific; in the western Atlantic from Canada, Bermuda and Massachusetts to Argentina including the Gulf of Mexico and the Caribbean, in the eastern Atlantic from Morocco to South Africa, in the Indo-West Pacific from East Africa and Hokkaido to Australia (FishBase). Over mud, sand and gravel, on reefs, rocky shores and in mangroves, inshore around pilings and buoys, offshore around drifting and fixed objects, occasionally in estuaries (FishBase). Depth 0 to 1200 m, 17 to 32 °C (FishBase); Wikipedia gives 1.6 to 32.2 °C. Introduced to the eastern Pacific since 2015 after escapes from a farm off Ecuador (Wikipedia).

Crustaceans, especially crabs, plus small fish and squid (FishBase, Wikipedia). Like remoras it follows large animals such as sharks, turtles and manta rays to scavenge, and shows little fear of boats (Wikipedia).

Size and age

FishBase: max. 200 cm, commonly around 110 cm, maximum published weight 68 kg, maximum age 15 years. Wikipedia gives up to 79 kg and an IGFA record of 79.6 kg (175 lb) near Rottnest Island, Australia; German Wikipedia up to 70 kg. The weight figures contradict each other.

Protection and rules

Conservation status: IUCN: Least Concern (assessed 21 August 2012; FishBase, older assessment). USA: licence, minimum size and bag limits are set by the states and, for federal waters, by NOAA Fisheries; every angler needs a state saltwater licence or registration (NOAA Fisheries). Federal waters of the Gulf and the Florida east coast zone: minimum size 36 inches (91.4 cm) fork length (50 CFR 622.380), one fish per person per day, no more than two per vessel per trip (50 CFR 622.382, both retrieved 21 Oct 2026). For the Atlantic stock farther north 50 CFR 622.380 sets no size, so check state rules there. For Florida check myfwc.com.

Rules in the USA

In the USA, each state sets its own size limits, bag limits and seasons. Pescaday does not list these rules yet: check them with the fish and wildlife agency of the state you fish in. Fishing licence USA: agency by state

In Germany we found no minimum size or closed season for this species in any state fisheries regulation.

In the kitchen

Firm flesh with excellent flavour that commands high prices; usually sold fresh and served as grilled or poached fillets (Wikipedia). There is no dedicated wild fishery because cobia live alone; the species is farmed (Wikipedia).

Sources (7)

Last checked 2026-10-22. Found a mistake? Write to [email protected].

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