Lepisosteus osseus (Linnaeus, 1758)

Longnose gar

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Lepisosteiformes \| Lepisosteidae
Synonyms	Esox osseus, Esox viridis, Lepidosteus ayresii, ... more
Common names	Lépisosté osseux, Catán aguja, Long-nosed gar, ... more

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Image of Lepisosteus osseus (Longnose gar)

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Main reference

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott. 1991. (Ref. 3814)
Other references | Biblio | Coordinator : Wiley, Ed | Collaborators

Size / Weight / Age

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)

Environment

Demersal; freshwater; brackish; pH range: 7.0 - 25.0; dH range: 10 - 15; depth range 0 - ? m (Ref. 55225), usually 0 - ? m (Ref. 55225)

Climate / Range

Temperate; 12°C - 20°C (Ref. 2060); 47°N - 24°N, 97°W - 69°W (Ref. 55225)

North and Central America: along the coasts and inland from Quebec to northern Mexico.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

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).

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.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Other

Human uses
Fisheries: minor commercial; gamefish: yes; aquarium: public aquariums


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| Bio-Quiz \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| LifeMapper \| Point map

Special reports
Check for Aquarium maintenance \| Check for Species Fact Sheets \| Check for Aquaculture Fact Sheets

Download XML
Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (tm=3-6; tmax=36; Fec=1,110)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (80 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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