You can sponsor this page

Silurus glanis  Linnaeus, 1758

Wels catfish
Adicionar as suas observações no Fish Watcher
Native range
This map was computer-generated and has not yet been reviewed.
Silurus glanis   AquaMaps   Data sources: GBIF OBIS
Adicionar o seu Fotografias e vídeos
Pictures | Sounds | Stamps, Coins | Imagem do Google
Image of Silurus glanis (Wels catfish)
Silurus glanis
Picture by Hartl, A.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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

Ambiente / Clima / Intervalo Ecologia

; Água doce; estuarina bentopelágico; não migratória; intervalo de profundidade 0 - 30 m (Ref. 9988).   Temperate; 4°C - 20°C (Ref. 2059); 62°N - 36°N, 0°E - 80°E

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | 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 / Tamanho / Peso / Idade

Maturity: Lm 87.5, range 86 - 108 cm
Max length : 500 cm SL macho/indeterminado; (Ref. 59043); common length : 300 cm TL macho/indeterminado; (Ref. 9988); Peso máx. publicado: 306.0 kg (Ref. 9988); Idade máx. registada: 80 anos (Ref. 59043)

Descrição breve Morfologia | Morfometria

Espinhos dorsais (total): 1; Raios dorsais moles (total): 4-5; Espinhos anais 1; Raios anais moles: 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).

Biologia     Glossário (ex. 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 Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

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).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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

Categoria na Lista Vermelha da IUCN (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Ameaça para o homem

  Potential pest




Utilização humana

Pescarias: espécies comerciais; Aquacultura: espécies comerciais; peixe desportivo: sim
FAO(Aquacultura: produção; pescarias: produção; publication : search) | FisheriesWiki | Sea Around Us

Mais informação

Nomes comuns
Sinónimos
Metabolismo
Predadores
Ecotoxicologia
Reprodução
Maturidade
Desova
Fecundidade
Ovos
Desenvolvimento dos ovos
Idade/Tamanho
Crescimento
Comprimento-peso
Comprimento-comprimento
Frequência de comprimento
Morfometria
Morfologia
Larvas
Dinâmica larvar
Recrutamento
Abundância
Referências
Aquacultura
Perfil para aquacultura
Estirpes
Genética
Frequência dos alelos
Hereditariedade
Doenças
Processamento
Mass conversion
Colaboradores
Fotografias
Stamps, Coins
Sons
Ciguatera
Velocidade
Tipo de natação
Área branquial
Outras referências
Cérebros
Visão

Ferramentas

Relatórios especiais

Descarregue XML

Fontes da internet

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=0.00813 (0.00536 - 0.01232), b=2.93 (2.80 - 3.06), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  4.4   ±0.2 se; Based on diet studies.
Resiliência (Ref. 69278):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (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
Vulnerabilidade (Ref. 59153):  Very high vulnerability (84 of 100) .
Categoria de preço (Ref. 80766):   Unknown.