Sander vitreus, Walleye : fisheries, aquaculture, gamefish, aquarium

Sander vitreus (Mitchill, 1818)

Walleye
Uploaden van je Foto's en video's
Pictures | Videos |     Google afbeelding
Image of Sander vitreus (Walleye)
Sander vitreus
Picture by Scarola, J.F.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > 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 Ecologie

; zoetwater; brakwater demersaal; potamodroom (Ref. 51243); diepteverspreiding ? - 27 m (Ref. 11002).   Subtropical; 1°C - 29°C (Ref. 12741); 70°N - 30°N, 137°W - 69°W (Ref. 86798)

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | 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 / Size / Gewicht / Leeftijd

Maturity: Lm 42.9, range 36 - 43.18 cm
Max length : 107 cm FL mannelijk/geslacht niet bekend; (Ref. 1998); common length : 54.0 cm TL mannelijk/geslacht niet bekend; (Ref. 12193); Maximaal gepubliceerd gewicht: 11.3 kg (Ref. 4699); Maximaal vermelde leeftijd: 29 jaren (Ref. 12193)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 13 - 17; Dorsale zachte stralen (totaal): 18-22; Anale stekels 2; Anale zachte stralen: 11 - 14; Wervels: 44 - 48. Nuptial tubercles absent. Differentiation of sexes difficult. Branchiostegal rays 7,7 or 7,8 (Ref. 1998).

Biologie     Verklarende woordenlijst (b.v. 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 Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

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).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Niet bedreigd (LC) ; Date assessed: 01 March 2012

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





Gebruik door de mens

Visserij: commercieel; Aquacultuur: experimenteel; vis voor de hengelsport: ja; Aquarium: Publieke aquaria
FAO(Visserij: production; publication : search) | FishSource |

Tools

Speciale rapporten

Download XML

Internet-bronnen

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00500 - 0.00874), b=3.14 (3.06 - 3.22), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  4.5   ±0.0 se; Based on diet studies.
Generation time: 3.7 (3.0 - 4.4) years. Estimated as median LN(3)/K based on 53 growth studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (K=0.05-0.45; tm=2-4; tmax=29; Fec=41,061).
Kwetsbaarheid (Ref. 59153):  Moderate vulnerability (40 of 100) .
Prijsklasse (Ref. 80766):   Unknown.