Costa Rica Species
Epinephelus itajara
AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN VUInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Vulnerable — at high risk of extinction if the current adverse conditions continue.ApprovedCurrent stage of this record in the editorial review workflow. Recent Sighting

Epinephelus itajara

Goliath Grouper

Lichtenstein, 1822

Detailed Texts Multi-lang
The largest grouper in the Western Atlantic, with a massive body, broad head, and mottled coloration that helps it camouflage on the bottom.

Added by

Anonymous Curator

Reviewed by

Julia Trouin

Last modified by

Julia Trouin

TaxonomyBiological classification ranks placing this species within the tree of life, from Kingdom down to Genus.

PhylumRank below Kingdom. Groups organisms sharing a fundamental body plan (e.g., Chordata = vertebrates and some invertebrates).Chordata
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Actinopterygii
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Perciformes
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Epinephelidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Epinephelus
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.Lichtenstein, 1822
Record Completeness
92%
Coming soon

Ecology & StatusHow this species lives: habitat preferences, diet, behavior, population status, and role in its ecosystem.

OriginWhether the species is native (evolved here), endemic (found only here), or introduced by human activity.

Native

Population TrendDirection of change in population size over time: increasing, stable, decreasing, or unknown.

Increasing

Breeding SeasonTime of year when this species typically reproduces or flowers.

Year Round

Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.

Carnivore

Recent SightingsWhether this species has been observed in the wild in Costa Rica within recent years.

Yes

Habitat SummaryOverview of the specific ecosystems and environments where this species is found in Costa Rica. Multi-lang

Inhabits reefs, shipwrecks, and estuarine areas, showing a preference for submerged structures in shallow waters.

BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang

Solitary and highly territorial predator.

Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang

Primarily solitary, except during spawning aggregation season.

Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang

Ambush predator that suctions prey like crustaceans and fish.

Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang

Top predator fundamental for reef health.

Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang

Forms spawning aggregations at specific sites.

Physical Measures

Length (cm)

50.0 - 250.0 cm

Weight (Grams)

1.00 kg - 300.00 kg

Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.1000000 - 5000000
Sexual DimorphismObservable physical differences between males and females of the same species (e.g., size, coloration, features).No

Lifespan

Sexual MaturityAge at which the individual becomes capable of reproducing for the first time.

6 - 8 Years

Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).

--

Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males40 Years
Females40 Years

Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang

Ability to emit low-frequency sounds through the contraction of swim bladder muscles.

Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang

Historically overexploited, currently under strict protection measures due to its slow growth.

Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang

They are protogynous hermaphrodites, born as females and changing to males upon reaching very large sizes.