Classification / Names
Common names from other countries
Size / Weight / Age
Max length : 610 cm TL male/unsexed; (Ref. 244); common length : 370 cm TL male/unsexed; (Ref. 13562); max. published weight: 449.5 kg (Ref. 40637)
Length at first maturity
Lm ?, range 250 - 300 cm
Marine; brackish; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 1 - 300 m (Ref. 37816), usually 1 - 100 m (Ref. 89972)
Climate / Range
Subtropical, preferred ?; 45°N - 37°S, 180°W - 180°E
Circumglobal in coastal warm temperate and tropical seas (Ref. 13562). Western Atlantic: North Carolina, USA to Uruguay, including the Gulf of Mexico and Caribbean. Eastern Atlantic: Mediterranean and Morocco to Senegal. Indo-Pacific: throughout the Indian Ocean; Ryukyu Islands to New Caledonia and French Polynesia. Eastern Pacific: southern Baja California, Mexico to Peru. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
soft rays: 0. A very large hammerhead also with a notch at the center of the head (Ref. 5578). Front margin of head gently curved in juveniles, becoming nearly straight in adults, with slight median notch (Ref. 26938). 1st dorsal fin very high and curved; 2nd dorsal and pelvic fins high and with deeply concave rear margins. Light grey or grey-brown above, white below; fins without conspicuous markings (Ref. 5578).
IUCN Red List Status (Ref. 90363)
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5029 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
4.3 ±0.5 se; Based on diet studies.
Low, minimum population doubling time 4.5 - 14 years (Fec=13)
Very high vulnerability (86 of 100)