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Siluriformes (Catfishes) >
Clariidae (Airbreathing catfishes)
Etymology: Heterobranchus: Greek, heteros = other + Greek, brangchia = gill (Ref. 45335).
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser demersal; potamodrom (Ref. 51243). Tropical; 22°C - 28°C (Ref. 12468); 17°N - 4°N
Africa: coastal basins from the Konkouré (Guinea) to the Cross (Cameroon); present in the upper Senegal, but apparently absent from the Gambia and the Niger (Ref. 57129).
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 123 cm SL Männchen/unbestimmt; (Ref. 123661); max. veröff. Gewicht: 1.2 kg (Ref. 123661)
Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 26 - 35; Afterflossenweichstrahlen: 40 - 51; Wirbelzahl: 53 - 60. Diagnosis: length of rayed dorsal fin 27-36% standard length; 26-35 dorsal-fin rays; length of adipose fin 24-34% of standard length (Ref. 57129). Strong, downward-pointed serrations on the anterior part of the pectoral spine (Ref. 270, 57129). Width of vomerine tooth plate 20.8-25.0%, width of premaxillary tooth plate 25.2-30.9% of head length; adipose fin uniformly coloured (Ref. 57129). Eyes superolateral; frontal fontanelle long and narrow; occipital fontanelle oval-shaped; head completely covered with bones; suprabranchial organ well developed; tooth plates relatively narrow; openings of secondary sensory canals regularly placed (Ref. 270).
Coloration: preserved specimens: grey, greyish-brown to dark brown on back and sides, pale brown on belly; some individuals show a marbled colour pattern; caudal and adipose fins uniformly coloured (Ref. 57129).
Facultative air-breathing (Ref. 126274); Max. size in West Africa reported as 510 mm TL (Ref. 57129).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | 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)
IUCN Rote Liste Status (Ref. 130435: Version 2024-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00493 - 0.01469), b=2.91 (2.76 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.7 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
