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Siluriformes (Catfishes) >
Clariidae (Airbreathing catfishes)
Etymology: Heterobranchus: Greek, heteros = other + Greek, brangchia = gill (Ref. 45335).
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal. Tropical; 22°C - 28°C (Ref. 12468); 35°N - 4°N
Africa: Nile (Ref. 3820), Senegal, Gambia, Volta,
Niger, Benue rivers and Lake Chad (Ref. 57129).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 150 cm TL mannelijk / geslacht onbekend; (Ref. 3820); max. gepubliceerd gewicht: 30.0 kg (Ref. 3799)
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 40 - 46; Anale zachte stralen: 49 - 58; Wervels: 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).
Body shape (shape guide): elongated; Cross section: circular.
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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00832 (0.00506 - 0.01366), b=2.97 (2.83 - 3.11), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.7 ±0.7 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
High to very high vulnerability (74 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
Unknown.
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