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Clarias jaensis Boulenger, 1909

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Clarias jaensis
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Cameroon country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in the Sanaga (Ref. 248, 27690, 51193, 81644), Ntem (Ref. 248, 27928, 81644), Nyong, Kienké/Kribi (Ref. 248, 81644), Lobé (Ref. 81644) and the middle Congo River basin tributaries Dja and Sangha (Ref. 248).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Teugels, G.G., D. Adriaens, S. Devaere and T. Musschoot, 2007
National Database:

Common names from other countries

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

> Siluriformes (Catfishes) > Clariidae (Airbreathing catfishes)
Etymology: Clarias: Greek, chlaros = lively, in reference to the ability of the fish to live for a long time out of water.
  More on author: Boulenger.

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

; Água doce demersal.   Tropical; 9°N - 1°S

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

Africa: Cross (Nigeria), Sanaga, Nyong, Lobe and Kribi (Cameroon), the Ntem (Cameroon and Gabon), Mbini/Woleu (Gabon and Equatorial Guinea), Komo (Gabon) (Ref. 81644) and the Ogowe (Gabon and Republic of Congo)(Ref. 248, 92841). Also in the middle Congo River basin in the rivers Ja (Dja) and Sangha (Ref. 248, 92841). In southeast Nigeria known from the Osse, Niger delta and Cross (Ref. 57129).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 48.3 cm TL macho/indeterminado; (Ref. 57129)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Raios dorsais (total) : 70 - 86; Raios anais : 54 - 71; Vértebras: 58 - 65. Diagnosis: head relatively long (Ref. 248, 57129) and flattened, its length 24.8-28.6% SL (mean 26.2)(Ref. 57129, 81644). Frontal fontanel short and wide (Ref. 57129, 81644), "sole-shaped" (Ref. 248), 1.5 times as long as wide (Ref. 81644). Lateral cephalic bones (dermosphenotic and supraorbital) becoming contiguous already in young individuals (between 70 and 80 mm SL)(Ref. 248, 57129, 81644). First gill arch with 11-19 gill rakers (Ref. 57129, 81644). Color pattern usually uniform, occasionally a marbled pattern consisting of various dark brown spots on a light-brown background; head broad and pointed in dorsal outline; tooth plates broad; suprabranchial organ well developed although not completely filling the chamber (Ref. 248). Vomerine tooth band a little less short than premaxillary tooth band; pectoral spine serrate only along anterior margin; flank neuromasts arranged in a regular pattern (Ref. 81644). Coloration: no information on colour in life (Ref. 57129, 81644). Most preserved specimens uniformly coloured: back and sides light to dark brown, belly beige-white; some specimens have a marbled pattern, with numerous black spots against a lighter background on back and sides, while the belly is beige to yellowish (Ref. 57129, 81644).

Biologia     Glossário (p.ex. epibenthic)

Facultative air-breathing (Ref. 126274); Ecology, food and breeding: unknown (Ref. 248).

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

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Teugels, G.G., 1986. A systematic revision of the African species of the genus Clarias (Pisces; Clariidae). Ann. Mus. R. Afr. Centr., Sci. Zool., 247:199 p. (Ref. 248)

Status na Lista Vermelha da UICN (Ref. 130435)

  Segura ou pouco preocupante (LC) ; Date assessed: 20 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless




Uso pelos humanos

Pescarias:
FAO(Publication : search) | FishSource |

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Trophic ecology
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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=0.00776 (0.00343 - 0.01757), b=2.97 (2.79 - 3.15), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.5   ±0.5 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Fec < 10,000).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (38 of 100).
Categoria de preço (Ref. 80766):   Unknown.