Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch; pH range: 5.5 - 7.5; dH range: 1 - 10. Tropical; 22°C - 26°C (Ref. 12468)
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).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 8.0 cm TL mannelijk / geslacht onbekend; (Ref. 2880)
Dorsale stekels (totaal) : 2 - 3; Dorsale zachte stralen (totaal) : 8; Anale stekels: 0; Anale zachte stralen: 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
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 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).
Trofisch niveau (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
