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 Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Holostei (gars and bowfins) > 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 Ecology

Freshwater; brackish; demersal; pH range: 7.0 - 25.0; dH range: 10 - 15; depth range 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 Countries | FAO areas | Ecosystems | 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 / Size / Weight / Age

Maturity: Lm 66.9  range ? - 80 cm
Max length : 200 cm TL male/unsexed; (Ref. 40637); common length : 17.5 cm TL male/unsexed; (Ref. 12193); max. published weight: 22.8 kg (Ref. 4699); max. reported age: 36 years (Ref. 12193)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 6-9; Anal spines: 0; Anal soft rays: 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).

Biology     Glossary (e.g. 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Wiley, Ed | Collaborators

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)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 14 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other





Human uses

Fisheries: minor commercial; gamefish: yes; aquarium: public aquariums
FAO - Publication: search | FishSource |

More information

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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).
Trophic level (Ref. 69278):  4.2   ±0.73 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (tm=3-6; tmax=36; Fec=1,110).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).
Price category (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);