Costa Rica Species
Mugil cephalus
AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN LCInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Least Concern — widespread and abundant; not at immediate risk of extinction.In ProgressCurrent stage of this record in the editorial review workflow. Recent Sighting

Mugil cephalus

Flathead Grey Mullet

Linnaeus, 1758

Detailed Texts Multi-lang
A robust, silver-colored fish with a broad, flat head, large scales, and a unique mouth structure adapted for grazing.

Added by

Anonymous Curator

Reviewed by

Under Review

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).Mugiliformes
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Mugilidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Mugil
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.Linnaeus, 1758
Record Completeness
95%
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.

Stable

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.

Omnivore

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

Euryhaline species found in marine, brackish, and freshwater environments globally in tropical and temperate zones.

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

Often grazes on algae, detritus, and microorganisms from the bottom sediment.

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

Highly gregarious; forms massive schools during migration and spawning.

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

Benthic detritivore.

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

Primary consumer/Detritivore; forms a critical link in many aquatic food webs.

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

Catadromous tendencies; migrates offshore to spawn in high-salinity waters.

Physical Measures

Length (cm)

20.0 - 100.0 cm

Weight (Grams)

100 g - 8.00 kg

Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.500000 - 2000000
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.

2 - 3 Years

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

1

Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males4 - 10 Years
Females4 - 10 Years

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

Highly tolerant of wide variations in salinity, allowing them to thrive in estuaries and rivers.

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

Affected by water pollution in coastal areas and habitat loss in nursery grounds like salt marshes.

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

They are famous for their high-quality roe, which is highly prized in culinary traditions around the world.