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Mastacembelus taiaensis (Travers, 1992)

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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Synbranchiformes (Spiny eels) > Mastacembelidae (Spiny eels)
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Forecariah River basin in Guinea and coastal basins in Sierra Leone (Ref. 57415), including the Taia, Moyambe and Sherbro (Ref. 7394).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 29.0 cm SL male/unsexed; (Ref. 57415)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 28 - 30; Dorsal soft rays (total): 116 - 131; Anal soft rays: 115 - 127; Vertebrae: 98 - 107. Diagnosis: 1st dorsal spine situated before, above or just posterior to posterior edge of pectoral fin; as a result distance from posterior edge of pectoral fin to anterior origin of 1st dorsal spine relatively short, (-6.6) to 6.0% HL (m=0.8); 1 strong pre-orbital spine; 3-4 pre-opercular spines; origin of 1st dorsal spine situated near, before or posterior to posterior edge of pectoral fin; post-anal length 53.1-57.9% SL (m=55.8), increasing with size, longer than preanal length, 40.9-46.7% SL (m=43.4), decreasing with size; distance from anterior border of snout to last externally visible dorsal spine, between 44.3-51.5% SL (m=48.5), comparable to distance from anterior border of snout to last externally visible anal spine, 44.6-51.5% SL (m=48.0), both decreasing with size; 7-10 caudal fin rays; 5-6 predorsal vertebrae; 32-34 abdominal vertebrae; 0 in-between vertebrae; 64-74 caudal vertebrae (Ref. 57415). Coloration: uniformly light brown overall background colour; dark brown band originating at base of rostral appendage, passing through eye, above pectoral fin and continuing along lateral side of body and tail; lateral dark brown band with a battlement-like upper edge generally well delimited and well contrasted from lighter brown upper sides; lower edge of dark brown band not well delimited; lower sides, eventually, with a few light brown spots; ventral surface of head, belly and abdomen uniformly light brown; dorsal, caudal and anal fins white, transparent of overall background colour with dark brown irregular markings; dorsal and anal fin base generally with a series of large dark brown spots; pectoral fins white of overall background colour with a few dark brown spots; unpaired fins become darker with increasing standard length/ size of specimens; minor size-related colour pattern changes, notably unpaired fins darkening with size due to an increase in number of dark brown spots; nevertheless, outermost border of unpaired fins remains white (Ref. 57415).

Biology     Glossary (e.g. epibenthic)

Maximum reported TL was 304mm (Ref. 57415).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Vreven, E.J., 2003. Mastacembelidae. p. 708-737 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57415)

IUCN Red List Status (Ref. 130435)

  Near Threatened (NT) (B2ab(iii)); Date assessed: 27 March 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00257 (0.00122 - 0.00544), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.8   ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (25 of 100).