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Sander vitreus (Mitchill, 1818)

Walleye
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Native range
This map was computer-generated and has not yet been reviewed.
Sander vitreus   AquaMaps   Data sources: GBIF OBIS
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Sander vitreus
Picture by Scarola, J.F.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Perciformes (Perch-likes) > Percidae (Perches) > Luciopercinae
Etymology: vitreus: vitrea meaning glassy, alluding to the nature of the large, silvery eyes (Ref. 1998).  More on author: Mitchill.

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

; eau douce; saumâtre démersal; potamodrome (Ref. 51243); profondeur ? - 27 m (Ref. 11002).   Subtropical; ? - 29°C (Ref. 12741); 70°N - 30°N, 137°W - 69°W (Ref. 86798)

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

North America: St. Lawrence-Great Lakes, Arctic, and Mississippi River basins from Quebec to Northwest Territories in Canada, and south to Alabama and Arkansas in the USA; possibly native to Mobile Bay basin. Widely introduced elsewhere in the USA, including Atlantic and Pacific drainages.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 36 - ? cm
Max length : 107 cm FL mâle / non sexé; (Ref. 1998); common length : 54.0 cm TL mâle / non sexé; (Ref. 12193); poids max. publié: 11.3 kg (Ref. 4699); âge max. reporté: 29 années (Ref. 12193)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 13 - 17; Rayons mous dorsaux (Total): 18-22; Épines anales 2; Rayons mous anaux: 11 - 14; Vertèbres: 44 - 48. Nuptial tubercles absent. Differentiation of sexes difficult. Branchiostegal rays 7,7 or 7,8 (Ref. 1998).

Biologie     Glossaire (ex. epibenthic)

Occurs in lakes, pools, backwaters, and runs of medium to large rivers. Frequently found in clear water, usually near brush (Ref. 86798). Prefers large, shallow lakes with high turbidity (Ref. 9988, 10294). Rarely found in brackish waters (Ref. 1998). 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).

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

Spawning occurs in small groups (a larger female and two smaller males or two females and up to six males) that engage in chasing, circular swimming, and fin erection. The group then ascends to shallow water, females roll on their side, and eggs and sperm are released. Deposition of eggs usually occurs in a single night (Ref. 1998). Larvae pelagic (Ref. 7471).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

Statut dans la liste rouge de l'IUCN (Ref. 119314)

  Préoccupation mineure (LC) ; Date assessed: 01 March 2012

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: commercial; Aquaculture: expérimental; pêche sportive: oui; Aquarium: Aquariums publics
FAO(pêcheries: production; publication : search) | FishSource |

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00468 - 0.00890), b=3.15 (3.05 - 3.25), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Niveau trophique (Ref. 69278):  4.5   ±0.0 se; Based on diet studies.
Résilience (Ref. 69278):  Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.05-0.45; tm=2-4; tmax=29; Fec=41,061).
Vulnérabilité (Ref. 59153):  Moderate vulnerability (40 of 100) .
Catégorie de prix (Ref. 80766):   Unknown.