Nigeria country information

Common names: Egungigi, Fono, Ik-poki
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Anonymous, 1998
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from the Sokoto, middle Niger (Ref. 57223), Lake Kainji (Ref. 28265), lower Niger, Benue, Niger delta and Kwa Ibo (Ref. 57223). Also reported from the Chad basin (Ref. 31256). Exploited commercially in Kainji Lake (Ref. 28265).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ni.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, Okokoniko, Kuilkeka, ... more

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | 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).
More on author: Boulenger.

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

; Água doce bentopelágico; potamódromo (Ref. 51243). Tropical; 23°C - 27°C (Ref. 12468)

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Africa: basins of the Senegal, Gambia, Niger (including Benue), Volta and Chad (Ref. 57223). Also in the Densu system (Ghana) and Kwa Ibo (Nigeria) (Ref. 57223).

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: L_m ?, range 12 - ? cm
Max length : 49.0 cm TL macho/indeterminado; (Ref. 57223)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 1; Espinhos anais: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; post-orbital length at least 60% of snout length; maxillary barbels longer than head, unbranched, without tubercles and lacking a distinct basal membrane; outer and inner mandibular barbels with numerous long and simple ramifications; mandibular teeth numbering 19-28 (28 in the lectotype); denticulations of pectoral-fin spines weaker and more dense on outer than on inner margin; dorsal-fin spine smooth anteriorly, except for a few apical denticles; humeral process twice as long as deep, granulose, pointed and slightly keeled ventrally; adipose fin well developed and distinctly separated from rayed dorsal fin; sides covered with big black ocellated spots (with a pale centre); no black spot behind dorsal fin (Ref. 57223). Coloration: colour rather light; sides and adipose fin marked with large black spots, sometimes with light centres resembling eyespots (ocelli); presence of such ocelli visible particularly in large individuals; adults usually with small spots aligned on caudal fin; speckled pattern extends unto all fins in young specimens, fading subsequently with growth (Ref. 57223).

Oviparous (Ref. 205).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

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

Referência principal Upload your references | Referências | Coordenador | 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)

Status na Lista Vermelha da UICN (Ref. 130435)

Segura ou pouco preocupante (LC) ; Date assessed: 23 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Harmless

Uso pelos humanos

Pescarias: espécies comerciais

FAO(Publication : search) | FishSource |

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Estimates based on models

Índice de diversidade filogenética (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01820 (0.00985 - 0.03362), b=2.92 (2.76 - 3.08), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 3.1 ±0.41 se; based on food items.

Resiliência (Ref. 120179): médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).

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

Categoria de preço (Ref. 80766): Unknown.

Synodontis ocellifer Boulenger, 1900