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Oreochromis tanganicae (Günther, 1894)

Tanganyika tilapia
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Oreochromis tanganicae
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).  More on author: Günther.

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

; eau douce benthopélagique.   Tropical; 24°C - 26°C (Ref. 2059); 3°S - 9°S

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

Africa: endemic to Lake Tanganyika, in the coastal area and river mouths (Ref. 5166, 118630).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 42.0 cm TL mâle / non sexé; (Ref. 118638)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 15 - 17; Rayons mous dorsaux (Total): 11-15; Épines anales 3; Vertèbres: 30 - 31. Diagnosis: A large, deep-bodied species, with wide bands of teeth in the jaws (Ref. 118638). Adult males are covered with complex bright pale blue markings, over the head, flanks and unpaired fins; the background colour can vary from greyish, through yellow to bright red; the lower part of the head is grey-white; the tailfin often head a red background and the dorsal fin has a broad red margin (Ref. 118638). Females and non-territorial males are generally a plain silvery colour, with pearly spots on the flanks; they occasionally exhibit vertical bars and/or horizontal dark bars (Ref. 118638).

Biologie     Glossaire (ex. epibenthic)

It is the dominant tilapiine species in Lake Tanganyika, despite the presence of the normally invasive Nile tilapia (Ref. 118638). It is not normally found far up into inflowing rivers (Ref. 118638). It has been reported to browse the surface film of sheltered waters; stomachs contained large quantities of the diatoms Pinnularia and Navicula with some sand-grains (Ref. 2). A maternal mouthbrooder; males defend territories in shallow water in sheltered sandy or muddy areas, and dig simple pits in the substrate (Ref. 118638). A large fast-growing species well represented in fishery catches in and around Lake Tanganyika; currently being promoted as an aquaculture species and occasionally exported for the aquarium trade (Ref. 118638).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

A maternal mouthbrooder; males defend territories in shallow water in sheltered sandy or muddy areas, and dig simple pits in the substrate (Ref. 118638).

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

Trewavas, E., 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. British Mus. Nat. Hist., London, UK. 583 p. (Ref. 2)

Statut dans la liste rouge de l'IUCN (Ref. 119314)

  Préoccupation mineure (LC) ; Date assessed: 31 January 2006

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries:
FAO(Publication : search) | FishSource |

Plus d'informations

Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Rassemblement de ponte
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Fréquences alléliques
Héritabilité
Pathologies
Traitement
Mass conversion
Collaborateurs
Images
Stamps, Coins Misc.
Sons
Ciguatera
Vitesse
Type de nage
Surface branchiale
Otolithes
Cerveaux
Vision

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00704 - 0.03738), b=3.02 (2.82 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  2.0   ±0.00 se; Based on food items.
Résilience (Ref. 69278):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Vulnérabilité (Ref. 59153):  Low to moderate vulnerability (34 of 100) .
Catégorie de prix (Ref. 80766):   Unknown.