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Chrysichthys walkeri Günther, 1899

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Image of Chrysichthys walkeri
No image available for this species;
drawing shows typical species in Claroteidae.


Senegal country information

Common names: [No common name]
Occurrence: questionable
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Reported from the Casamance (Ref. 33587), but not confirmed in Ref. 7324 or 57126; probably a misidentification.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sg.html
National Fisheries Authority: http://www.refer.sn/sngal_ct/eco/oeps/
Occurrences: Occurrences Point map
Main Ref: Pandaré, D., S. Niang, H. Diadhiou and B. Capdeville, 1997
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Claroteidae (Claroteid catfishes) > Claroteinae
Etymology: Chrysichthys: Greek, chrysos = golden + Greek, ichthys = fish (Ref. 45335).
  More on author: Günther.

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

; Água doce demersal.   Tropical; 20°C - 25°C (Ref. 2059); 5°N - 3°N

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

Africa: endemic to the Pra basin in Ghana; other reports from West Africa unconfirmed (Ref. 7324, 57126). Identifications of C. walkeri in Lower Guinea appear to be misidentifications of mature male of C. auratus, or of C. aluuensis or C. thysi (Ref. 81642).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 11.5 cm SL macho/indeterminado; (Ref. 57126)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 2; Raios dorsais (total) : 6; Espinhos anais: 0. Diagnosis: nasal barbell long, reaching to anterior margin of orbit; first branched dorsal-fin ray longest, but never filamentous; adipose fin long, its base longer than that of dorsal fin; 9 branched rays in pectoral fin; 12-13(15) gill rakers on lower limb of first gill arch (Ref. 57126).

Biologia     Glossário (p.ex. epibenthic)

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Risch, L.M., 2003. Claroteidae. p. 60-96 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. 57126)

Status na Lista Vermelha da UICN (Ref. 130435)

  Vulnerável, ver Livro Vermelho da UICN (VU) (B1ab(iii)); Date assessed: 14 January 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless




Uso pelos humanos

Pescarias: ; Aquário: Espécies comerciais
FAO(Publication : search) | FishSource |

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Estimates based on models

Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00579 - 0.01726), b=3.02 (2.87 - 3.17), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.2   ±0.40 se; based on food items.
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (K=0.72).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Categoria de preço (Ref. 80766):   Unknown.