Classification / Names
Common names from other countries
Main reference
Size / Weight / Age
Max length : 340 cm TL male/unsexed; (Ref. 26938); common length : 240 cm TL male/unsexed; (Ref. 5217); max. published weight: 183.7 kg (Ref. 40637); max. reported age: 25 years (Ref. 31395)
Length at first maturity
Lm ?, range 239 - ? cm
Environment
Marine; brackish; reef-associated; oceanodromous (Ref. 51243); depth range 0 - 92 m (Ref. 244)
Climate / Range
Subtropical, preferred 27°C (Ref. 107945); 45°N - 39°S, 114°W - 0° (Ref. 55192)
Distribution
Western Atlantic: New Jersey, USA to southern Brazil, including the Gulf of Mexico, the Bahamas, and the Caribbean; also in Gulf of Mexico (Ref. 26938). Northeast Atlantic: Senegal, Côte d'Ivoire and probably wide-ranging off West Africa, but this requires confirmation. Eastern Pacific: southern Baja California, Mexico and the Gulf of California to Ecuador.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
A brownish shark with yellow overtones but no conspicuous markings. Large second dorsal fin nearly same size as first dorsal (Ref. 26938).
IUCN Red List Status (Ref. 115185)
Human uses
Fisheries: commercial; gamefish: yes
Tools
Special reports
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Internet sources
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
4.3 ±0.5 se; Based on diet studies.
Resilience
Very Low, minimum population doubling time more than 14 years (K=0.54(?); tm=12.7; tmax=25; Fec = 4-17; rmax = 0.012)
Vulnerability
Very high vulnerability (87 of 100)
Price category