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Atractosteus spatula (Lacepède, 1803)

Alligator gar
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Image of Atractosteus spatula (Alligator gar)
Atractosteus spatula
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> 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 Ekologi

; air tawar; payau dasar (demersal); kisaran kedalaman 0 - ? m (Ref. 55223). Subtropical; 44°N - 20°N, 101°W - 82°W (Ref. 55223)

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | 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 / Weight / umur

Maturity: Lm ?  range ? - ? cm
Max length : 305 cm OT jantan/; (Ref. 3221); common length : 200 cm TL jantan/; (Ref. 3728); Berat maksimum terpublikasi: 137.0 kg (Ref. 58490)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

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).

Biologi     Daftar kata (contoh 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 Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva

rujukan utama Upload your references | Acuan | Koordinator : Wiley, Ed | mitra

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)

Status IUCN Red List (Ref. 130435)

  kurang bimbang (LC) ; Date assessed: 14 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

  Harmless





penggunaan manusia

Perikanan: nilai komersial kecil; Ikan buruan: ya; Akuarium: Akuarium publik
FAO - Publication: search | FishSource |

informasi lanjut

Trophic ecology
Bahan makanan
Diet compositions
Food consumptions
Food rations
Pemangsa
Ecology
Ekologi
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
ukuran frekuensi
Mass conversions
Recruitments
Abundances
Life cycle
Reproduksi, perkembang biakan
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larva
Dinamika larva
Anatomy
Gill areas
Otak
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Suara-suara ikan
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetika
Electrophoreses
Heritabilities
Human related
Aquaculture systems
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Strain
Ciguatera cases
Stamps, coins, misc.
Outreach
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References
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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.
Daya lenting (Ref. 120179):  sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
kategori harga (Ref. 80766):   Unknown.