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Micralestes occidentalis (Günther, 1899)

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Micralestes occidentalis
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Nigeria country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Occurs in Lower Niger (Ref. 31256). Also Ref. 2880.
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., 2003
National Database:

Common names from other countries

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

> Characiformes (Characins) > Alestidae (African tetras)
Etymology: Micralestes: Greek, mikros = small + Greek,lestes = thief (Ref. 45335).
  More on author: Günther.

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

; eau douce pélagique; pH range: 5.5 - 7.5; dH range: 1 - 10.   Tropical; 22°C - 26°C (Ref. 12468)

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

Africa: Côte d'Ivoire, Ghana, Liberia, Cameroon and Sierra Leone. Savanna form found in upper reaches of the Niger and the Volta (Ref. 2880, 5331, 81279). Also found in Congo (Ref. 5331).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm TL mâle / non sexé; (Ref. 2880)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 2 - 3; Rayons mous dorsaux (Total): 8; Épines anales 0; Rayons mous anaux: 19 - 24. Diagnosis: lateral line complete; 24-30 lateral line scales; 16-21 anal fin branched rays; 6/8 premaxillary teeth; 11-15 gill rakers on lower part of first branchial arch; caudal and adipose fins bright red; rayed dorsal fin colourless (Ref. 2880; 81279). Body height 3.1-3.3 times in standard length; head length 3.9-4.1 times in standard length; cuspid number: on external row of upper jaw 3, on internal row of upper jaw 5-7, on external row of lower jaw 3-6, on internal row of lower jaw 1 (Ref. 42032).

Biologie     Glossaire (ex. epibenthic)

Affinities: M. voltae (with dorsal point black): maybe 2 species M. o. occidentalis (Günther, 1899) forest zone form with dorsal point blackened & M. o. voltae Roman, 1966 savanna form without blackened dorsal point

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Teugels, G.G., C. Lévêque, D. Paugy and K. Traoré, 1988. État des connaissances sur la faune ichtyologique des bassins côtiers de Côte d'Ivoire et de l'ouest du Ghana. Rev. Hydrobiol. Trop. 21(3):221-237. (Ref. 272)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 22 March 2019

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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Sources Internet

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes(Genre, Espèce) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(génôme, nucléotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Arbre de Vie | Wikipedia(aller à, chercher) | 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=0.01023 (0.00546 - 0.01916), b=2.85 (2.69 - 3.01), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Niveau trophique (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).