Lepisosteus osseus, Longnose gar : fisheries, gamefish, aquarium

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Lepisosteus osseus (Linnaeus, 1758)

Longnose gar
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Lepisosteus osseus
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Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Lepisosteiformes (Gars) > Lepisosteidae (Gars)
Etymology: Lepisosteus: Greek, lepis = scale + Greek, osteon = bone; bony sacled (Ref. 45335);  osseus: From the word osseus, meaning bony (Ref. 10294).
More on author: Linnaeus.

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

; eau douce; saumâtre démersal; pH range: 7.0 - 25.0; dH range: 10 - 15; profondeur 0 - ? m (Ref. 55225), usually 0 - ? m (Ref. 55225). Subtropical; 12°C - 20°C (Ref. 2060); 48°N - 23°N, 99°W - 69°W (Ref. 55225)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

North and Central America: Atlantic Slope from Delaware River in New Jersey to central Florisa; St. Lawrence River in Quebec through Great Lakes and Mississippi River basin to Red River (Hudson Bay basin), North Dakota, and south to Louisiana; Gulf Slope drainages from central Florida to Rio Grande drainage in Texas and Mexico.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 66.9  range ? - 80 cm
Max length : 200 cm TL mâle / non sexé; (Ref. 40637); common length : 17.5 cm TL mâle / non sexé; (Ref. 12193); poids max. publié: 22.8 kg (Ref. 4699); âge max. reporté: 36 années (Ref. 12193)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 6-9; Épines anales 0; Rayons mous anaux: 8 - 10. Long narrow snout. Olivaceous brown above and white below. Dark spots on median fins and on body (Ref. 37032). Scales ganoid: thin bony scutes on leading edges of unpaired fins, and on both edges of caudal fin (Ref. 4639).

Biologie     Glossaire (ex. epibenthic)

Facultative air-breathing (Ref. 126274); Adults occur in sluggish pools, backwaters and oxbows of medium to large rivers, and lakes (Ref. 10294). Usually found near vegetation. Occasionally found in brackish waters. Spawning occur in freshwater and possibly slightly brackish water (Ref. 4639). Migrate up rivers during the spawning season (Ref. 4639). Eggs and larvae are demersal and adhesive (Ref. 4639). Voracious predator, feeding on various fishes and crustaceans. The roe is poisonous.

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur : Wiley, Ed | Collaborateurs

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 14 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Other





Utilisations par l'homme

Pêcheries: intérêt commercial mineur; pêche sportive: oui; Aquarium: Aquariums publics
FAO - Publication: search | FishSource |

Plus d'informations

Pays
Zones FAO
Écosystèmes
Occurrences
Introductions
Stocks
Écologie
Régime alimentaire
Éléments du régime alimentaire
Consommation alimentaire
Ration
Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Rassemblement de ponte
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
BRUVS
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Electrophoreses
Héritabilité
Pathologies
Traitement
Nutrients
Mass conversion
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Stamps, Coins Misc.
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Ciguatera
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Type de nage
Surface branchiale
Otolithes
Cerveaux
Vision

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5781   [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).
Niveau trophique (Ref. 69278):  4.2   ±0.73 se; based on food items.
Résilience (Ref. 120179):  Faible, temps minimum de doublement de population : 4,5 à 14 années (tm=3-6; tmax=36; Fec=1,110).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).
Catégorie de prix (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 36.9 [20.7, 68.2] mg/100g; Iron = 0.887 [0.535, 1.485] mg/100g; Protein = 18.7 [17.7, 19.6] %; Omega3 = 0.266 [0.160, 0.452] g/100g; Selenium = 48.4 [27.2, 91.1] μg/100g; VitaminA = 6.85 [2.62, 18.68] μg/100g; Zinc = 0.456 [0.333, 0.653] mg/100g (wet weight);