Mutton snapper

What it is

This snapper has a deep, almond-shaped body with a nearly lunate tail. Its colour shifts from olive green on the back to reddish below. Distinctive features include a black spot near the dorsal fin and blue stripes under the eyes. The fins are red, and the anal fin is sharply pointed. Juveniles display yellow bands and transparent fins, while adults show dark vertical bars when resting. The mouth is large with canine-like teeth.

Where it lives

It inhabits the Western Atlantic, ranging from Massachusetts to Brazil. It is most common in warm waters like Florida, the Bahamas, and the Caribbean. Adults prefer offshore reefs and rock rubble at depths of 25 to 95 metres. Juveniles stay in shallow inshore areas, such as mangrove creeks, canals, and turtle grass beds. They thrive in water temperatures between 18.9 and 27.8 degrees Celsius.

How it lives

This predatory fish changes its diet as it grows. Larvae eat plankton near the surface. Settled juveniles consume larger plankton and small invertebrates. Adults feed on crustaceans, snails, and smaller fish like grunts. They hunt during the day, often adopting a barred pattern when feeding near the bottom. After spawning, adults move to deeper waters and become less active. They can live for up to forty years.

Breeding and life cycle

Spawning occurs in large, transient groups, primarily in the northeastern Caribbean. In the Caribbean, this happens in February, while other regions see summer spawning. The timing aligns with the lunar calendar each year. Females release pelagic eggs, which males fertilise externally. A single female may lay up to 1.4 million eggs. These hatch after 20 hours, and larvae migrate to shallow waters within two days.

Fish and people

Fishers target this species for recreational and commercial purposes. Its flesh is highly valued, with cheek and throat meat considered gourmet. Catch methods include hook and line, nets, traps, and spearfishing. In Florida, it is a popular sport fish. However, predictable spawning habits make it vulnerable to overfishing. Stocks have declined in the north, and heavy exploitation continues in parts of Brazil and Colombia.

Status and threats

The IUCN lists the species as Near Threatened. Biomass estimates suggest a decline of at least 20 percent over several decades. Overfishing of spawning aggregations and juveniles drives this trend. In Cuba, known spawning groups have shrunk. Conservation efforts recommend better data collection and protection of key spawning sites. Without management, the status could worsen to Vulnerable.

Questions people ask about Mutton snapper

Good reading and sources

• Mutton snapper on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos
• Wikidata recordOpen data