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> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
More on author: Lesueur.

Environment: milieu / climate zone / depth range / distribution range Ekologi

marina; sötvatten; brackvatten bottenlevande; anadrom (Ref. 51243); djupintervall 6 - 53 m (Ref. 93286), usually 6 - 34 m (Ref. 93286). Subtropical; 49°N - 28°N, 82°W - 65°W (Ref. 54259)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

North America: St. John River in Canada to St. Johns River in Florida, USA.

Length at first maturity / Size / Vikt / Age

Maturity: L_m 50.0, range 45 - 55 cm
Max length : 143 cm TL hane/ej könsbestämd; (Ref. 6866); common length : 50.0 cm TL hane/ej könsbestämd; (Ref. 12193); publicerad maxvikt: 23.0 kg (Ref. 6866); rapporterad maxålder: 67 år (Ref. 6866)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 33 - 42; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 18 - 24. Snout short, bluntly V-shaped, not upturned at tip. Barbels short (Ref. 7251). Absence of fontanelle and post dorsal shields. Single row of pre anal shields, 6-11 (Ref. 4639). Dorsal shields 7-13, lateral shields 22-34 (Ref. 4639). Blackish viscera (Ref. 37032). Head and back dark, lower surface white (Ref. 37032). Anal fin origin beneath dorsal fin origin (Ref. 86798).

Inhabit river mouths, lakes, estuaries, and bays; occasionally enters the open sea. Feeds mostly at night over soft substrates; juveniles feed primarily on benthic crustaceans and insects, adults prey on benthic crustaceans, insects and mollusks (Ref. 93252). Maximum known age is 67 years for females and 30 years for males. Flesh of good quality; eggs are suitable for caviar (Ref. 3192).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCN Red List Status (Ref. 130435)

Sårbar, se IUCNs rödlista (VU) (A2bce); Date assessed: 14 September 2016

CITES

Appendix I: International trade banned

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: mindre kommeriell; sportfisk: ja; Akvarium: Offentliga akvarier

FAO - fiskeri: species profile; Publication: search | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer

Ecology
Ekologi

Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Life cycle
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Egg(s)
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Distribution
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Anatomy
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Physiology
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Nutrients
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Swimming type
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Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetik
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Human related
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References
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Estimates based on models

Preferred temperature (Ref. 123201): 7.5 - 25.5, mean 15.6 °C (based on 138 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00324 (0.00142 - 0.00736), b=3.17 (2.99 - 3.35), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.3 ±0.39 se; based on food items.

Resiliens (Ref. 120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (K=0.04; tm=14-17; tmax=67; Fec=48,000).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (86 of 100).

Price category (Ref. 80766): Unknown.

Acipenser brevirostrum Lesueur, 1818