You can sponsor this page

Schilbe intermedius Rüppell, 1832

Silver catfish
Adicionar sua observação em Fish Watcher
Native range | All suitable habitat
This map was computer-generated and has not yet been reviewed.
Schilbe intermedius   AquaMaps   Data sources: GBIF OBIS
Carregue seu(sua) Fotos e vídeos
Pictures | Imagem do Google
Image of Schilbe intermedius (Silver catfish)
Schilbe intermedius
Picture by Seegers, L.

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

Actinopterygii (peixes com raios nas barbatanas) > Siluriformes (Catfish) > Schilbeidae (Schilbid catfishes)
Etymology: intermedius: of this species (Ref. 43912).  More on author: Rüppell.

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

; Água doce pelágico(a,os,as); potamódromo (Ref. 51243); intervalo de profundidade 0 - 60 m (Ref. 34291), usually 0 - 30 m (Ref. 34291).   Tropical

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Africa: Senegal, Gambia, Casamance, Corubal, Geba, Little Scarcies, Sassandra, Boubo, Bandama, Agnébi, Mé, Comoé, Tano, Pra, Volta basin, Mono, Sio, Ouémé, Ogun, entire Niger and Chad basins, Cross, Wouri and Sanaga; absent between Little Scarcies and Sassandra; further in the entire Congo River basin, Malagarasi, Luiche, Cunene, Okavango, entire Zambezi including the Kafue system, Lake Kariba, Nile, Lake Victoria basin, Webi Shebeli, Wando, Tana, Galana, Athi, Wami, Rufiji-Ruaha, Lake Rukwa, lower Sabi-Lundi, Shire below Murchison Falls, Lake Chilwa, Ruvu, Pungwe, Limpopo, Incomati and Pongola (Ref. 43912).

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: Lm 10.0, range 11 - ? cm
Max length : 50.0 cm SL macho/indeterminado; (Ref. 57127); peso máx. publicado: 1.4 kg (Ref. 43912)

Descrição suscinta Morfologia | Morfometria

Espinhos dorsais (total): 1; Raios dorsais (total): 5-6; Raios anais : 41 - 66. Diagnosis: 8-13 gill rakers (exceptionally 7-14, Ref. 43912) on lower limb of first gill arch; 41-66 branched anal-fin rays; eyes positioned laterally (Ref. 43912, 57127, 81643). In the Nile (Ref. 43912) and in West Africa adipose fin usually absent, but specimens with a rudimentary adipose fin occasionally present (Ref. 43912, 57127, 81643). In Central and East Africa populations without as well as with entirely developed adipose fin occur; in several populations both morphotypes are mixed together, the adipose fin being absent or present but sometimes varying in size from a recognizable protrusion low down the back to a fully developed adipose fin; posterior nostrils always closer to each other than are anterior ones; lower jaw reaches beyond snout but hardly remarkable in some specimens, mouth being almost isognath; inner side of pectoral spine feebly serrated; nasal barbel at least reaching to midway between eye and opercle but often reaching beyond this level; small specimens (up to about 15 cm) with typical colour pattern with dark lateral bands along sides and anal fin, this pattern gradually disappearsing in larger specimens, the body becoming in general entirely brownish, yellowish and silvery with very few traces of dark lateral bands (Ref. 43912).

Biologia     Glossário (p.ex. epibenthic)

Reported to be a pelagic species (Ref. 34290), generally abundant in open water, in both lacustrine and fluviatile conditions, often showing shoaling habits; seems to prefer large or rather large rivers and lakes and apparently rarely penetrates small rivers or small affluents (Ref. 43912). Occur mainly on shallow waters. Migrate to the surface at night (Ref. 34291). Surface feeder; nocturnal, omnivorous, voracious and predaceous (Ref. 43912). Feeds on fish (juvenile as well as adults), insects (aquatic as well as terrestrial ones, larvae as well as adult insects), molluscs, freshwater prawns and other crustaceans, algae and bottom-living and planktonic organisms; vegetable material and eggs were also reported from stomach contents (Ref. 43912). Primarily piscivorous at 13-34 cm TL (Ref. 34291, 43912). Rarely grow to lengths greater than 30 cm SL (Ref. 34290). Maximum total length recorded 60.5 cm (Ref. 43912), 52331). Maximum lifetime observed almost 10 years (Ref. 43912). Spawn throughout the year peaking once (Ref. 34291). Migrate into rivers in fairly compact schools during the rainy season to spawn in floodwater pools (Ref. 34291). Reproduction occurs at high water after the floods (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Flesh edible and of good flavour; possible aquaculture species (Ref. 43912).

Ciclo de vida ou comportamento de acasalamento Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Distinct pairing (Ref. 205).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

De Vos, L., 2003. Schilbeidae. p. 97-116 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57127)

Status na Lista Vermelha da UICN (Ref. 120744)

  Segura ou pouco preocupante (LC) ; Date assessed: 14 January 2016

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless





Uso pelos humanos

Pescarias: espécies comerciais; Aquacultura: experimental
FAO(Publication : search) | FishSource |

Mais informação

Países
Áreas da FAO
Ecossistemas
Ocorrências
Introduções
Estoques
Ecologia
Dieta
Itens alimentares
Consumo alimentar
Ração
Nomes comuns
Sinônimos
Metabolismo
Predadores
Ecotoxicologia
Reprodução
Maturidade
Desova
Agregação de desova
Fecundidade
Ovos
Desenvolvimento dos ovos
Referências
Aquacultura
Perfil para aquacultura
Estirpes
Genética
Frequências alélicas
Hereditariedade
Doenças
Processamento
Conversão de massa
Colaboradores
Fotos
Stamps, Coins Misc.
Sons
Ciguatera
Velocidade
Tipo de natação
Área branquial
Otólitos
Cérebros
Visão

Ferramentas

Relatórios especiais

Baixar XML

Fontes da internet

Estimativas de algumas propriedades baseadas em modelos

Índice de diversidade filogenética (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00419 - 0.01142), b=3.08 (2.94 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  3.6   ±0.60 se; Based on food items.
Resiliência (Ref. 69278):  médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (tmax=5, probably greater; K=0.1-0.3; Fec = 18,000).
Vulnerabilidade (Ref. 59153):  Low to moderate vulnerability (29 of 100) .
Categoria de preço (Ref. 80766):   Unknown.