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Siluriformes (Catfishes) >
Claroteidae (Claroteid catfishes) > Claroteinae
Etymology: Chrysichthys: Greek, chrysos = golden + Greek, ichthys = fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical; 6°N - 4°N
Africa: New Calabar and Imo rivers in Nigeria (Ref. 57126) and the Ntem in Cameroon (Ref. 7324, 81642). Report from the Cross (Ref. 13331) unconfirmed in Ref. 57126 or 81642.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 9.1 cm SL macho/indeterminado; (Ref. 57126)
Espinhos dorsais (total) : 2; Raios dorsais (total) : 5 - 7; Raios anais : 12 - 13. Diagnosis: broad premaxillary tooth plate (width 37.8-44.9% of head length); very broad mouth (50.3-59.5% of head length) as compared to snout length (which attains only 28.9-35.3% of head length)(Ref. 57126, 81642). Snout length less than 75% mouth width (Ref. 81642). Palatine dentition strongly developed even in juveniles; nasal barbels long (14.5-26.6% of head length)(Ref. 57126, 81642). Gill rakers long and smooth (Ref. 57126). Dorsal fin spine short, 12-17% SL, more than six times in SL; dorsal fin base short, 18-23% SL (Ref. 81642).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Risch, L. and E.J. Vreven, 2007. Claroteinae. p. 607-629. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 74659)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: sem interesse
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00471 - 0.02328), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
