Sander vitreus (Mitchill, 1818)

Walleye

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

Classification	Actinopterygii \| Perciformes \| Percidae \| Luciopercinae
Synonyms	Perca vitrea, Stizostedion vitreum, Stizostedion vitreum vitreum, ... more
Common names	Sandre américain, Lucioperca americana, Pickerel, ... more

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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 | Collaborators

Size / Weight / Age

Max length : 107 cm FL male/unsexed; (Ref. 1998); common length : 54.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 11.3 kg (Ref. 4699); max. reported age: 29 years (Ref. 12193)

Environment

Demersal; potamodromous (Ref. 51243); freshwater; brackish; depth range ? - 27 m (Ref. 11002)

Climate / Range

Temperate; ? - 29°C (Ref. 12741); 55°N - 35°N

North America: St. Lawrence-Great Lakes, Arctic, and Mississippi River basins from Quebec to Northwest Territories in Canada, south to Alabama and Arkansas in the USA. Widely introduced elsewhere in the USA, including Atlantic, Gulf, and Pacific drainages. Rarely found in brackish waters of North America (Ref. 1998).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 13 - 17; Dorsal soft rays (total): 18 - 22; Anal spines: 2; Anal soft rays: 11 - 14; Vertebrae: 44 - 48. Nuptial tubercles absent. Differentiation of sexes difficult. Branchiostegal rays 7,7 or 7,8 (Ref. 1998).

Occurs in lakes, pools, backwaters, and runs of medium to large rivers. Prefers large, shallow lakes with high turbidity (Ref. 9988, 10294). Feeds at night, mainly on insects and fishes (prefers yellow perch and freshwater drum but will take any fish available) but feeds on crayfish, snails, frogs, mudpuppies, and small mammals when fish and insects are scarce (Ref. 1998). Although not widely farmed commercially for consumption, large numbers are hatched and raised for stocking lakes for game fishing (Ref. 9988). Utilized fresh or frozen; eaten pan-fried, broiled, microwaved and baked (Ref. 9988).


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

Human uses
Fisheries: commercial; aquaculture: experimental; 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 \| 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

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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 (K=0.05; tm=2-4; tmax=29; Fec=41,061)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (40 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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