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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335); leonensis: Named in reference to the country in which specimens of the species were first identified (Ref. 52346).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical; 24°C - 26°C (Ref. 12468); 10°N - 4°N
Africa: coastal rivers from the Kogon (Guinea) to the Bia (Sierra Leone) (Ref. 53405).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 21.9 cm SL mannelijk / geslacht onbekend; (Ref. 53405)
Korte beschrijving
Morfologie | Morfometrie
Dorsale stekels (totaal): 13 - 15; Dorsale zachte stralen (totaal): 13-16; Anale stekels 3; Anale zachte stralen: 7; Wervels: 28. Diagnosis: 2 scale rows between upper lateral line and anterior part of lower lateral line (Ref. 52346, 53405). High lateral line count (38-42); low gill raker count (13-15 along lower limb of first arch); lower pharyngeal jaw with a short, deep keel that is deeply indented along the ventral margin (Ref. 52346).
Appears to be an exclusively Upper Guinean Province species (Ref. 52346). Inhabits large sandbanks and hardly ever penetrates into small streams (Ref. 53407). Benthic macrophage (Ref. 52346). Feeds primarily upon insects and their larvae, but also accepts plants (Ref. 52307). Oviphilous (Ref. 53407), maternal mouthbrooder that does not pair bond (Ref. 52307).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Teugels, G.G. and D.F.E. Thys van den Audenaerde, 2003. Cichlidae. p. 521-600. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 2. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 815p. (Ref. 53405)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij:
Meer informatie
Lokale namenSynoniemenMetabolismePredatorenEcotoxicologieVoortplantingMaturiteitPaaienPaaiaggregatiesFecunditeitEierenOntwikkeling van de eieren
Leeftijd/GrootteGroeiLengte-gewichtLengte-lengteLengtefrequentiesMorfometrieMorfologieLarvenLarvale populatiedynamiekRekruteringAbundantieBRUVS
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaElectrophoresesErfelijkheidZiektesVerwerkingNutrientsMassaconversie
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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=0.01698 (0.00851 - 0.03387), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.6 ±0.26 se; based on food items.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
