Atractosteus spatula, Alligator gar : fisheries, gamefish, aquarium

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Atractosteus spatula (Lacepède, 1803)

Alligator gar
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Atractosteus spatula
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Lepisosteiformes (Gars) > Lepisosteidae (Gars)
Etymology: Atractosteus: Greek, atraktos, arrow + Greek, osteon = bone (Ref. 45335);  spatula: Atractosteus meaning spindle bone, and spatula in reference to the broad, elongated snout (Ref. 79012).
More on author: Lacepède.

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

; süßwasser; brackwasser demersal; tiefenbereich 0 - ? m (Ref. 55223). Subtropical; 44°N - 20°N, 101°W - 82°W (Ref. 55223)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

North America: ranges from Mississippi River basin from southwestern Ohio and southern Illinois in USA south to Gulf of Mexico; Gulf of Mexico Coastal Plain from Enconfina River in Florida, USA to Veracruz, Mexico.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 305 cm OT Männchen/unbestimmt; (Ref. 3221); common length : 200 cm TL Männchen/unbestimmt; (Ref. 3728); max. veröff. Gewicht: 137.0 kg (Ref. 58490)

Kurzbeschreibung Morphologie | Morphometrie

Large size and broad, short snout. Light dorsal stripe. Dark olivaceous brown above and white to yellowish beneath. Dark brown blotches on all fins (Ref. 37032).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Facultative air-breathing (Ref. 126274); Adults inhabit sluggish pools and backwaters of large rivers, swamps, bayous, and lakes. Rarely enter brackish and marine waters (Ref. 5723). Feed on blue crabs, turtles, waterfowl or other birds and small mammals (Ref. 10294). Giant of the gars (Ref. 5723). Marketed fresh (Ref. 37032).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Wiley, Ed | Partner

Etnier, D.A. and W.C. Starnes, 1993. The fishes of Tennessee. The University of Tennessee Press, Knoxville, Tennessee, USA. (pls. check date). (Ref. 10294)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 14 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: weniger kommerziell; Sportfisch: ja; Aquarium: Öffentliche Aquarien
FAO - Publication: search | FishSource |

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Ablaichen
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6406   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00121 - 0.00751), b=3.18 (2.96 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.67 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Preiskategorie (Ref. 80766):   Unknown.