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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Eponymy: Professor Dr Walter Norbert Verheyen (1932–2005) was a Belgian zoologist and mammologist who was a professor at the Biology Department of the University of Antwerp. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical; 24°C - 26°C (Ref. 12468); 8°N - 5°N
Africa: Cavally and Nipoué (= Cess) Rivers in Côte d'Ivoire and Liberia; also reported from the upper St. John River in Liberia (Ref. 7378, 53405).
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 27.0 cm TL mannelijk / geslacht onbekend; (Ref. 5163)
Dorsale stekels (totaal) : 15 - 16; Dorsale zachte stralen (totaal) : 12 - 13; Anale stekels: 3; Anale zachte stralen: 9 - 10. Diagnosis: lower pharyngeal bone about as long as broad, with anterior lamella shorter than toothed area; median pharyngeal teeth not broadened; upper part of caudal fin yellow-orange, lower part greyish; dorsal fin with 15-16 spines and 12-14 soft rays; 9-13 lower gill-rakers (Ref. 53405).
Mainly herbivorous, but also takes small amounts of insects; pair-bonding, biparental, open substrate spawner that builds large, deep pits on the river bottom (Ref. 52307).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Dunz, A.R. and U.K. Schliewen, 2013. Molecular phylogeny and revised classification of the haplotilapiine cichlid fishes formerly referred to as "Tilapia". Mol. Phylogenet. Evol. 68(1):64-80. (Ref. 93285)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
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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=0.01862 (0.00830 - 0.04177), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.5 ±0.1 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 (17 of 100).