Ghana country information

Common names: Adewudzea, Catfish, Denor
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: commercial | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in the Volta basin (Ref. 30488). Importance to fisheries and aquaculture provided by H. Dankwa, pers. comm. 06/05.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/gh.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Teugels, G.G., B. Denayer and M. Legendre, 1990
National Database:

Common names from other countries

Poisson-chat africain, Pez-gato africano, 双背鳍异鳃鲶, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Clariidae (Airbreathing catfishes)
Etymology: Heterobranchus: Greek, heteros = other + Greek, brangchia = gill (Ref. 45335).

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

; sötvatten bottenlevande. Tropical; 22°C - 28°C (Ref. 12468); 35°N - 4°N

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Africa: Nile (Ref. 3820), Senegal, Gambia, Volta, Niger, Benue rivers and Lake Chad (Ref. 57129).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 150 cm TL hane/ej könsbestämd; (Ref. 3820); publicerad maxvikt: 30.0 kg (Ref. 3799)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 0; Mjukstrålar i ryggfenan (totalt): 40-46; Mjukstrålar i analfenan: 49 - 58; Ryggkotor: 62 - 63. Diagnosis: length of rayed dorsal fin 37-42% standard length; 40-46 dorsal-fin rays; length of adipose fin 22-27% standard length (Ref. 57129). No serrations on the anterior part of the pectoral spine (Ref. 270, 57129). Head oval-shaped to rectangular dorsally; snout broadly rounded; eyes rather laterally placed; frontal fontanelle long and narrow; occipital fontanelle relatively long and oval shaped; 'postorbital' bones completely united; suprabranchial organ well developed; pectoral spine smooth; openings of secondary sensory canals with regular geometric pattern (Ref. 270). Coloration: preserved specimens: greyish-brown on back and sides, pale brown on belly; some specimens show a marbled colouration, particularly on posterior part of body; caudal fin often with one or more vertical cross-bars (Ref. 57129). Body and fins occasionally with irregularly placed spots (Ref. 270).

Facultative air-breathing (Ref. 126274); Hardly anything is known about the biology of this species (Ref. 78218). Maximum reported size for West Africa: 800 mm TL (Ref. 57129).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Teugels, G.G., B. Denayer and M. Legendre, 1990. A systematic revision of the African catfish genus Heterobranchus Geoffroy-Saint-Hilaire, 1809 (Pisces: Clariidae). Zool. J. Linn. Soc. 98:237-257. (Ref. 270)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 November 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: kommersiell

FAO(Vattenbruk: produktion; ; publication : search) | FishSource |

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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00741 (0.00333 - 0.01648), b=2.97 (2.78 - 3.16), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.7 ±0.7 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Price category (Ref. 80766): Unknown.

Heterobranchus bidorsalis GeoffroySaint-Hilaire, 1809