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> 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)

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

Description synthétique Clés d'identification | 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).

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

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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

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=0.01023 (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).

Micralestes occidentalis (Günther, 1899)