You can sponsor this page

Silurus glanis  Linnaeus, 1758

Wels catfish
Beobachtung melden im Fish Watcher
Native range
This map was computer-generated and has not yet been reviewed.
Silurus glanis   AquaMaps   Data sources: GBIF OBIS
Hochladen Photos und videos
Pictures | Sounds | Stamps, Coins | Google Bild
Image of Silurus glanis (Wels catfish)
Silurus glanis
Picture by Hartl, A.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Strahlenflosser) > Siluriformes (Catfish) > Siluridae (Sheatfishes)
Etymology: Silurus: Greek, silouros = a cat fish + Greek, odous = teeth (Ref. 45335).   More on author: Linnaeus.

Lebensraum / Klimazone / Range Ökologie

; süßwasser; brackwasser benthopelagisch; standorttreu; tiefenbereich 0 - 30 m (Ref. 9988).   Temperate; 4°C - 20°C (Ref. 2059), preferred ?; 62°N - 36°N, 0°E - 80°E

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Europe and Asia. North, Baltic, Black, Caspian and Aral Sea basins, as far north as southern Sweden and Finland; Aegean Sea basin in Maritza and from Struma to Sperchios drainages; Turkey. Absent from the rest of Mediterranean basin. Now widely introduced and translocated throught Europe and Lake Balkhash basin in Kazakhstan. Several countries report adverse ecological impact after introduction. In Appendix III of the Bern Convention (protected fauna).

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 87.5, range 86 - 108 cm
Max length : 500 cm SL Männchen/unbestimmt; (Ref. 59043); common length : 300 cm TL Männchen/unbestimmt; (Ref. 9988); max. veröff. Gewicht: 306.0 kg (Ref. 9988); max. veröff. Alter: 80 Jahre (Ref. 59043)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 1; Rückenflossenweichstrahlen (insgesamt): 4-5; Afterflossenstacheln 1; Afterflossenweichstrahlen: 83 - 95. Distinguished from all other freshwater fishes in Europe by the following unique characters: two pairs of mental barbels; and anal fin with 83-91½ rays. Differs further from the following combination of features: body naked; large, depressed head; dorsal fin with 2-4½ rays; caudal fin rounded or truncate; no adipose fin; and anal rays almost touching caudal (Ref. 59043). Caudal fin with 17 rays (Ref. 2196).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Inhabits large and medium size lowland rivers, backwaters and well vegetated lakes (Ref. 59043). Occurs mainly in large lakes and rivers, though occasionally enters brackish water in the Baltic and Black Seas (Ref. 9988). Found in deep waters of dams constructed on the lower reaches of rivers (Ref. 9696). A nocturnal predator, foraging near bottom and in water column. Larvae and juveniles are benthic, feeding on a wide variety of invertebrates and fish. Adults prey on fish and other aquatic vertebrates. Attains first sexual maturity at 2-3 years of age (Ref. 59043). Spawns in the salt water of the Aral Sea (at Kulandy) (Ref. 1441). Marketed fresh, canned and frozen; can be pan-fried and baked (Ref. 9988). Locally threatened due to river regulation destroying shallow spawning sites (Ref. 59043).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Males defend small territories in the spawning sites and construct nests made of plant materials. They dig shallow depressions or clean spawning substrate such as willow (Salix) and roots. Males guard the nests until larvae emerge. Spawns in pairs. Eggs hatch in 2-3 days. Larvae live in the nest until yolk sac is absorbed for 2-4 (Ref. 59043). Eggs are surrounded by a mucous and adherent wrapping. Incubation lasts about 50 hours at 24°C. Egg size 3 mm, larval length at hatching 8.5 mm (Ref. 26211).

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

IUCN Rote Liste Status (Ref. 109396)

CITES (Ref. 94142)

Not Evaluated

Bedrohung für Menschen

  Potential pest




Nutzung durch Menschen

Fischereien: kommerziell; Aquakultur: kommerziell; Sportfisch: ja
FAO(Aquakultur: production; Fischereien: production; publication : search) | FisheriesWiki | Sea Around Us

Mehr Information

Alter/Größe
Wachstum
Länge-Gewicht
Länge-Länge
Längenhäufigkeiten
Morphometrie
Morphologie
Larven
Larven Pop.Dyn.
Rekrutierung
Dichte
Referenzen
Aquakultur
Aquakultur Profil
Zuchtlinien
Genetik
Allel-Häufigkeiten
Vererbbarkeit
Krankheiten
Verarbeitung
Mass conversion
Partner
Bilder
Stamps, Coins
Laute
Ciguatera
Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
Gehirngröße
Sehfähigkeit

Tools

Zusatzinformationen

Download XML

Internet Quellen

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00421 - 0.01038), b=3.00 (2.86 - 3.14), based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  4.4   ±0.2 se; Based on diet studies.
Widerstandsfähigkeit (Ref. 69278):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (tm=3-4; tmax=30).
Prior r = 0.29, 2 SD range = 0.1 - 0.87, log(r) = -1.24, SD log(r) = 0.55, Based on: 2 K, 10 tgen, 2 tmax, 5 Fec records
Verwundbarkeit (Ref. 59153):  Very high vulnerability (84 of 100) .
Preiskategorie (Ref. 80766):   Unknown.