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Mugil cephalus  Linnaeus, 1758

Flathead grey mullet
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| Native range | All suitable habitat | PointMap | Year 2100 |
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Mugil cephalus   AquaMaps   Data sources: GBIF OBIS
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Image of Mugil cephalus (Flathead grey mullet)
Mugil cephalus
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Mugiliformes (Mullets) > Mugilidae (Mullets)
Etymology: Mugil: Latin, mugil, -ilis = grey mullet (Ref. 45335);  cephalus: cephalus meaning head (Ref. 10294).   More on author: Linnaeus.

Environment / Climate / Range Ecology

Marine; freshwater; brackish; benthopelagic; catadromous (Ref. 51243); depth range 0 - 120 m (Ref. 9321), usually 0 - 10 m.   Subtropical; 8°C - 24°C (Ref. 4944); 62°N - 57°S, 180°W - 180°E (Ref. 54241)

Length at first maturity / Size / Weight / Age

Maturity: Lm 35.4, range 30 - ? cm
Max length : 100.0 cm SL male/unsexed; (Ref. 2804); common length : 50.0 cm SL male/unsexed; (Ref. 7399); max. reported age: 16 years (Ref. 28725)

Short description Morphology | Morphometrics

Dorsal spines (total): 5; Dorsal soft rays (total): 7-9; Anal spines: 3; Anal soft rays: 8 - 9. Color olive-green dorsally, sides silvery shading to white ventrally; lateral stripes sometimes distinctive. Lips thin. Pectoral fins short (when folded forward does not reach eye). Well developed adipose eyelid. Anal spines 3 in adults; anal soft rays 8 in adults, 9 in larvae.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Cosmopolitan in coastal waters of the tropical, subtropical and temperate zones of all seas. Eastern Pacific: California, USA to Chile (Ref. 2850). Western Pacific: Japan to Australia (Ref. 9812). Western Indian Ocean: from India to South Africa (Ref. 4393). Western Atlantic: Nova Scotia, Canada to Brazil (Ref. 7251); Cape Cod to southern Gulf of Mexico (Ref. 26938); absent in the Bahamas and most of West Indies and Caribbean (Ref. 7251, 9761). Eastern Atlantic: Bay of Biscay to South Africa, including the Mediterranean Sea and Black Sea (Ref. 7399). Reported in Sea of Okhotsk (Ref. 50550).

Biology     Glossary (e.g. epibenthic)

Adults are found in coastal waters (Ref. 2850, 44894) often entering estuaries and rivers (Ref. 2847, 3573, 11230, 44894). They are usually in schools over sand or mud bottom (Ref. 2850), between 0 and 10 m, occurring equally in tropical, subtropical and temperate waters (Project MUGIL). They are mainly diurnal, feeding on detritus, micro-algae and benthic organisms (Ref. 56548, 74902, 74760). Juveniles feed on zooplankton until about 3.0 cm SL (Ref. 59043). Reproduction takes place at sea, at various times of the year depending on the location (Ref. 74907, Amour). There is absence of an obligatory freshwater phase in the life cycle (Ref. 74752). Females spawn 0.8 to 2.6 million eggs which develop at sea (Ref. 74912, Chen & Su 1986). Sexually mature at 3 to 4 years (Ref. 74902). Maximum length reported as 120 cm SL (Ref. 7399) remains to be confirmed (Project MUGIL). Maximum weight reported as 12 kg (Ref. 56527) seems too high for the area and remains to be confirmed (Project MUGIL). Widely cultivated in freshwater and brackish ponds (Ref. 2847, Jackson 1984, Liao 1981). Marketed fresh, dried, salted, and frozen; roe sold fresh or smoked (Ref. 9321); also used in Chinese medicine (Ref. 12166).

Main reference Upload your references | References | Coordinator : Harrison, Ian | Collaborators

Harrison, I.J., 1995. Mugilidae. Lisas. p. 1293-1298. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9321)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless (Ref. 4887)




Human uses

Fisheries: highly commercial; aquaculture: commercial; gamefish: yes; bait: occasionally
FAO(Aquaculture: production, species profile; fisheries: production, species profile; publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00945 - 0.01460), b=2.97 (2.92 - 3.02), based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  2.1   ±0.2 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.09-0.15; tm=2-6; tmax=16; Fec=1.6 million).
Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100) .
Price category (Ref. 80766):   Very high.