- Although the flesh of the almaco jack is considered quality table fare, the species has been associated with ciguatera poisoning, a seldom fatal stomach irritation.
- The almaco jack is susceptible to tapeworm parasites in the caudal peduncle area, but the meat can be eaten safely if affected portions are cut away.
Cero are long and slender fish with iridescent blue-green backs and silvery sides. Similar to the Spanish mackerel, the cero has a series of yellow, orange or brown streaks and spots on the upper portion of its sides. Different from the Spanish mackerel, the cero has a bronze-colored stripe that gently curves from the pectoral fin to the base of the tail fin. The front third of the first dorsal fin is a bluish black.
Cero are carnivores that feed on shrimp, squid and small schooling fish such as anchovies, herring and sardines.
Cero are found in the western Atlantic from Massachusetts to Brazil, including the Florida Keys and throughout the West Indies.
Known as both a nearshore and offshore species, the cero is most common in clear waters around wrecks and reefs. Though known to go deeper, the cero is usually found in water less than 65 feet deep.
- The all-tackle world record for a cero is 17 pounds, 2 ounces.
- Cero is considered excellent table fare with a lighter flesh than the Spanish mackerel. There have been reports of ciguatera poising throughout the Caribbean.