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Synbranchiformes (Spiny eels) >
Mastacembelidae (Spiny eels)
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335).
Eponymy: A Seiter was the the operator of the ferry across the Sanaga River at Nachtigal, Cameroon. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal. Tropical
Africa: endemic to the Sanaga River basin in Cameroon (Ref. 81678).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 37.4 cm SL mâle / non sexé; (Ref. 81678)
Épines dorsales (Total) : 30 - 33; Rayons mous dorsaux (Total) : 84 - 98; Rayons mous anaux: 78 - 89; Vertèbres: 91 - 94. Diagnosis: 29+1 - 32+1 (median 31+1) dorsal spines; postorbital length 60.9-65.0% HL (mean 62.8%); pectoral fin 23.1-27.2% HL (mean 25.2%); distance from anterior border of snout to last externally visible dorsal spine relatively long, 55.6-59.9% SL (mean 58.2%), decreasing with size; origin of soft dorsal fin at about same level as origin of soft anal fin; lower jaw relatively short, its length 14.4-23.1% HL (mean 18.3%), increasing with size; anterior origin of first dorsal spine situated before or just above posterior edge of pectoral fin, (- 12.2)-0.0% HL [mean (- 5.7%)]; distance from gill opening to dorsal pectoral fin base 4.3-9.6% HL (mean 6.9%) (Ref. 81678).
Body shape (shape guide): eel-like.
Inhabits slow streams with sandy bottoms (Ref. 6060). Maximum reported total length 392 mm (Ref. 81678).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Travers, R.A., G. Eynikel and D.F.E. Thys van den Audenaerde, 1986. Mastacembelidae. p. 415-427. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 6060)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00269 (0.00127 - 0.00569), b=2.94 (2.76 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.9 ±0.6 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |