Rwanda country information

Common names: Longtail spinyeel, Umukungwe
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from the Rusizi (Ref. 46152), and from Upper (Ref. 46152, 54979, 80296) and Middle Akagera system (Ref. 46152, 54979). Also reported as Mastacembelus taeniatus.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: De Vos, L., J. Snoeks and D.F.E. Thys van den Audenaerde, 2001
National Database:

Common names from other countries

Shorttail spiny eel, Spiny eel, Longtailed spinyeel, ... more

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

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

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

; eau douce démersal; pH range: 7.4 - 8.4; dH range: 7 - 30. Tropical; 23°C - 27°C (Ref. 12468)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Africa: Lake Victoria through Lake Tanganyika and their associated catchment basins to the Upper Zambezi and Okavango Rivers (Ref. 6060). Also in the upper Congo River basin in Democratic Republic of the Congo (Ref. 2970, 45616, 93587) and Zambia (Ref. 246, 27609, 45616), in the Zambezi in Zimbabwe (Ref. 94654) and Angola (Ref. 120641) and in eastward flowing rivers of Tanzania (Ref. 4967, 41366).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 40.0 cm SL mâle / non sexé; (Ref. 80296)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 18 - 35; Rayons mous dorsaux (Total) : 64 - 73; Épines anales: 2; Rayons mous anaux: 67 - 80; Vertèbres: 95 - 96. Diagnosis: Anterior nostril in the form of a short tentacle; snout produced as a fleshy appendage (Ref. 34290). Number of dorsal-fin spines 18-35; anal fin with 2 separate spines (Ref. 34290, 123814). Colour extremely variable, ground colour brown with a variable reticulated and blotched pattern (Ref. 34290).

Mainly riverine species, but also occurs in lakes near river mouths and in vegetated fringes and in swamps (Ref. 80296). Also found in rapids where it hides among rocks (Ref. 85214). Essentially a sedentary fish, nocturnal and usually waiting for its prey to swim or drift within range whereupon fish will dart out of its shelter to seize it (Ref. 89002). Feeds on aquatic insect larvae (Ref. 80296), lithophilic insects (Ref. 12526), fish (Ref. 13624, 27292), shrimps (Ref. 246, 80296), oligochetes and occasionally vegetable matter (Ref. 80296, 89002). Breeds during flood season, in inundated areas (Ref. 80296). Eggs yellow and large, probably spawned among water weeds (Ref. 89002).

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

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Préoccupation mineure (LC) ; Date assessed: 08 December 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO(Publication : search) | FishSource |

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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).

Niveau trophique (Ref. 69278): 3.9 ±0.63 se; based on food items.

Résilience (Ref. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (39 of 100).

Mastacembelus frenatus Boulenger, 1901