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Tylochromis variabilis Stiassny, 1989

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

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335);  variabilis: Named with referene to the relatively wide range of body forms and degree of lower pharyngeal jaw development encompassed by the taxon (Ref. 52346).

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

; eau douce benthopélagique. Tropical; 5°N - 12°S

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

Africa: middle and upper Congo River basin, including the Sankuru, Sangha, Ubangui, Uele, Kotto, Bomu, Lomami, Aruwimi, Itimbiri, Lindi-Tshopo, Lualaba, upper Lualaba and Chambezi, in Cameroon, Central African Republic, Democratic Republic of the Congo and Zambia (Ref. 52346). Also reported from the Sanga in Republic of Congo (Ref. 44840).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 27.6 cm NG mâle / non sexé; (Ref. 2970)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 14 - 16; Rayons mous dorsaux (Total) : 11 - 16; Épines anales: 3; Rayons mous anaux: 7 - 8; Vertèbres: 28 - 29. Diagnosis: 33-35 lateral line scales; 15-16 gill-rakers along lower limb of first arch; entire premaxillary oral valve present; dorsal fin length of 55.4-65.5% SL (Ref. 52346).

Biologie     Glossaire (ex. epibenthic)

Opportunistic benthic macrophage (Ref. 52346). Feeds on plants, insects and (to a lesser degree) molluscs (Ref. 52307). Maternal (Ref. 52307) mouthbrooder (Ref. 4910, 52307) that does not pair-bond (Ref. 52307).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur : Kullander, Sven O. | Collaborateurs

Stiassny, M.L.J., 1989. A taxonomic revision of the African genus Tylochromis (Labroidei, Cichlidae); whith notes on the anatomy and relationships of the group. Ann. Mus. R. Afr. Cent. Ser. 8, Sci. Zool., 258:1-161. (Ref. 52346)

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

  Préoccupation mineure (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

Plus d'informations

Trophic ecology
Éléments du régime alimentaire
Diet compositions
Food consumptions
Food rations
Prédateurs
Ecology
Écologie
Population dynamics
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Length-weight rel.
Length-length rel.
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Anatomy
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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | 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=0.01950 (0.00780 - 0.04874), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  2.6   ±0.24 se; based on food items.
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).