Mauritania country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Mohamed Fall, K.O., 2005
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in the Senegal River (Ref. 57223). Also Ref. 55783.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mr.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Paugy, D. and T.R. Roberts, 2003
National Database:

Common names from other countries

Catfish, Karfasa, 埃及歧须鮠, ... more

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Mochokidae (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).

Issue
Reassigned to Synodontis based on a phylogenetic study by Vigliotta (2008: Ref. 79014). This species is placed in the genus Hemisynodontis in Eschmeyer (CofF ver. May 2011: Ref. 86870).

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

; agua dulce bentopelágico; pH range: 6.8 - 7.2; dH range: ? - 25; potamodromo (Ref. 51243). Tropical; 22°C - 25°C (Ref. 2060); 35°N - 4°N

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Africa: Nile basin (Ref. 3202, 28714), Senegal, Gambia, Volta, Niger (including Benue) and Chad (Ref. 7362, 57223).

Length at first maturity / Tamaño / Peso / Age

Maturity: L_m ?, range 25 - ? cm
Max length : 46.0 cm SL macho / no sexado; (Ref. 57223)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 1; Espinas anales: 0. Diagnosis: gill slits extending downwards beyond pelvic-fin insertions to the midline of isthmus; maxillary barbels not longer than head, lacking tubercles and ramifications, but with a broad, black membrane extending over their entire length; mandibular barbels with a broad black membrane; outer and inner mandibular barbels with few and simple ramifications, and membranous at tips; mandibular teeth short, numbering 8-16; pectoral-fin spines more strongly denticulate on inner than on outer margin; dorsal-fin spine smooth, except for weak serrations present on posterior margin in some specimens; humeral process deep, short, granular and not keeled ventrally; adipose fin high, long and contiguous to rayed dorsal fin (Ref. 57223). Coloration: typically inverted colour, the back being uniformly whitish-grey and the belly black; fins greyish, without spots; maxillary and mandibular barbels (particularly the outer pair) bordered by a broad, black membrane (Ref. 57223).

Occurs in deep water close to the shore. Omnivore, feeds on plankton and detritus (Ref. 13868). May also feed on surface insects, chironomid larvae, benthic crustaceans, and mollusks (Ref. 28714). Oviparous (Ref. 205). Maximum size reported as 50.0cm (length type not given)(Ref. 31256).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Paugy, D. and T.R. Roberts, 2003. Mochokidae. p. 195-268 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. 57223)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 15 April 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: comercial

FAO(Publication : search) | FishSource |

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Fuentes de Internet

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=0.01479 (0.00933 - 0.02344), b=2.92 (2.79 - 3.05), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.1 ±0.40 se; based on food items.

Resiliencia (Ref. 120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.14-0.55).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (27 of 100).

Price category (Ref. 80766): Unknown.

Synodontis membranaceus (GeoffroySaint-Hilaire, 1809)