Classification / Names
Common names from other countries
Main reference
Size / Weight / Age
Max length : 100.0 cm TL male/unsexed; (Ref. 40637); common length : 36.0 cm TL male/unsexed; (Ref. 3702); max. published weight: 7.9 kg (Ref. 40637); max. reported age: 18 years (Ref. 12193)
Length at first maturity
Lm ?  range ? - 35 cm
Environment
Marine; brackish; demersal; non-migratory (Ref. 94474); depth range 10 - ? m (Ref. 9988)
Climate / Range
Subtropical, preferred 23°C (Ref. 107945); 42°N - 15°N, 83°W - 70°W (Ref. 94474)
Distribution
Western Atlantic: New York to southern Florida in USA and the entire Gulf of Mexico. Northeastern Atlantic: recently reported from Guadalquivir River estuary in Spain (Ref. 94474).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal
spines
(total): 9 - 11;
Dorsal
soft rays
(total): 25-28;
Anal
spines: 2;
Anal
soft rays: 10 - 11. Body silvery, dark grey on back with bluish reflections and numerous round black spots irregularly scattered on upper half, extending to dorsal and caudal fin. Spinous dorsal fin dusky, other fins pale to yellowish. Mouth large, oblique lower jaw projecting. Upper jaw with a pair of large canine-like teeth at tip. Lower jaw with an enlarged inner row of teeth, uniform in size and closely set. Chin without barbels or pores. Snout with 2 marginal pores. Gas bladder with a pair of nearly straight horn-like appendages. Soft portion of dorsal fin unscaled (Ref 51721).
IUCN Red List Status (Ref. 115185)
Threat to humans
Harmless
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 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
4.0 ±0.66 se; Based on food items.
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.2-0.3; tmax=18; tm=1; Fec=1 million)
Vulnerability
High vulnerability (58 of 100)
Price category