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Synbranchiformes (Spiny eels) >
Mastacembelidae (Spiny eels)
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335); kakrimensis: Named after the Kakrima River, a major tributary of the Konkoure River basin in Guinea, the type locality of the new species (Ref. 55095).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
Africa: Upper Konkoure River basin in Guinea (Ref. 55095).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 23.9 cm SL maschio/sesso non determinato; (Ref. 55095)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 29 - 30; Raggi dorsali molli (totale) : 75 - 85; Spine anali: 3; Raggi anali molli: 76 - 86; Vertebre: 90 - 93. Mastacembelus kakrimensis has a blunted snout (Ref. 55095). Posterior angle of lips situated from about below the horizontal middle of the posterior nare up to its posterior edge (Ref. 55095). Upper corner of gill opening very slightly anterior to dorsal point of pectoral-fin base, both points clearly anterior to ventral point of pectoral-fin base; dorsal point of pectoral-fin base situated largely above upper corner of gill opening; gill opening closed for about half, up to entire vertical distance between the dorsal and ventral edge of the pectoral-fin base (Ref. 55095). Lateral line is yellowish-white; can be continuous in anterior part, from the head up to half the distance between head and anus; the remaining, more porsterior, part of the lateral line is always clearly discontinuous (Ref. 55095). Preopercular spines are present in small-sized specimens, but are absent in medium and large sized specimens (Ref. 55095). Preanal length negatively allometric, postanal length positively allometric, latter always smaller than former (Ref. 55095).
Body shape (shape guide): eel-like.
Found in riffles of a small river with bottom consisted of rock boulders with aquatic vegetation (Ref. 55095).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Vreven, E.J. and G.G. Teugels, 2005. Redescription of Mastacembelus liberiensis Boulenger, 1898 and description of a new West African spiny-eel (Synbranchiformes: Mastacembelidae) from the Konkoure River basin, Guinea. J. Fish Biol. 67(2):332-369. (Ref. 55095)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 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). |
Livello trofico (Fonte Biblio. 69278) |
3.7 ±0.6 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |