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Synbranchiformes (Spiny eels) >
Mastacembelidae (Spiny eels)
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335); polli: Named in honor of Prof. Dr. Poll, a famous Belgian ichthyologist who pioneered ichthyological studies on Lake Tanganyika (Ref. 56055).
Eponymy: Dr Max Fernand Leon Poll (1908–1991) was a Belgian ichthyologist, and ‘connoisseur of the fish fauna’. [...] (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale. Tropical
Africa: endemic to and widely distributed in Lake Tanganyika (Ref. 56055).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 14.0 cm SL maschio/sesso non determinato; (Ref. 56055)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 22 - 29; Raggi dorsali molli (totale) : 68 - 87; Spine anali: 2; Raggi anali molli: 70 - 98; Vertebre: 72 - 84. The species has protruding eyes, a small rostral appendage, a protruding lower jaw, a pointed caudal fin and a more elongated pectoral-fin shape (Ref. 56055). Posterior angle of lips is situated below the region from the middle from the eye up to a distance of about one-third of the diameter behind posterior border of eye (Ref. 56055). Upper corner of gill opening and dorsal edge of pectoral-fin base approximately at same level, clearly anterior to ventral edge of pectoral-fin base; dorsal edge of pectoral-fin base situated above upper corner of the gill opening (Ref. 56055). Lateral line continuous from posterior border of head up to one-third or half of distance between head and anus, discontinuous more posteriorly (Ref. 56055). Preanal length always shorter than postanal length; distance from anterior border of snout to last externally visible dorsal spine always longer than distance from anterior border of snout to last externally visible anal spine, and as a result origin of soft dorsal fin always posterior compared to origin of soft anal fin (Ref. 56055). Dorsal spines increasing in size from first to last (Ref. 56055). One well-developed, externally visible anal spine; a very small almost entirely reduced spine, hidden under the skin, can be present (Ref. 56055). Preopercular and preorbital spines are absent (Ref. 56055).
It has a uniformly light brown overall background colour with numerous small, round, dark brown spots on the dorsal part of head, body and tail (Ref. 56055). Background colour lighter, more yellowish white on lips, ventral region of head, belly and most ventral part of tail (Ref. 56055). Pectoral fins whitish transparent without spots; dorsal, caudal and anal fins also whitish transparent (Ref. 56055).
Body shape (shape guide): eel-like.
Coastal in distribution; habitat is rocky bottom, flagstone, rock slides and pebbles (Ref. 56055).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Vreven, E.J., 2005. Redescription of Mastacembelus ophidium Günther, 1893 (Synbranchiformes: Mastacembelidae) and description of a new spiny eel from Lake Tanganyika. J. Nat. Hist. 39(18):1539-1560. (Ref. 56055)
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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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00129 - 0.00562), 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): 3.6 ±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 vulnerability (10 of 100).
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