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Oreochromis amphimelas (Hilgendorf, 1905)

Manyara tilapia
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Oreochromis amphimelas
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterígios (peces con aletas radiadas) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).  More on author: Hilgendorf.

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

; agua dulce; salobre bentopelágico.   Tropical; 3°N - 5°S

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Africa: several shallow saline lakes in central Tanzania (Ref. 118630), like lakes Manyara, Eyasi, Kitangiri, Singida and Sulungali (Ref. 5166, 118638).

Length at first maturity / Tamaño / Peso / Age

Maturity: Lm ?, range 8 - ? cm
Max length : 28.0 cm SL macho / no sexado; (Ref. 4967)

Short description Morfología | Morfometría

Espinas dorsales (total): 12 - 14; Radios blandos dorsales (total): 10-12; Espinas anales 3; Radios blandos anales: 8 - 11; Vértebra: 30 - 32. Diagnosis: Slender bodied tilapia, characterised by its small eye and slender head profile with terminal mouth (Ref. 118638); further a narrow preorbital bone and scales of nape, dorsum and belly are very small, the transition from flank to belly scales abrupt, along a curve from base of pectoral fin to vent (Ref. 2). The upper profile of the head is nearly horizontal and in specimens larger than 130 mm total length there is a steep rise from the occiput to the dorsal fin; the caudal peduncle is long and dorsal and anal fins do not reach its posterior end when adpressed (Ref. 2). Live territorial males have jet black dorsal fins and are black underneath but are pinkish-red on flank and caudal fin; under stress, such as following capture, the flanks darken and the whole fish appear dark grey, apart from the reddish tailfin; females and non-territorial males grey/silver with pale ventral region (Ref. 118638).

Biología     Glosario (por ej. epibenthic)

Found in lakes (Ref. 4967); small bodied forms are present in Lake Eyasi, Lake Manyara and Lake Sulungali, while large bodied forms can be found in Lake Kitangiri and Lake Singida (Ref. 4967, 118638). It is microphagous (Ref. 54840). A maternal mouthbrooder (Ref. 2, 118638). Limited potential as an aquaculture species, it comprises a high proportion of the catch in lakes where it is found (Ref. 118638). IUCN conservation status is endangered, due to restricted distribution, drought and overfishing (Ref. 118638). There is some indication of hybridization with Oreochromis niloticus and O. esculentus (Ref. 118638).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

A maternal mouthbrooder (Ref. 118638). Breeding cycle of about 7 weeks; there is evidence of biparental mouthbrooding (Ref. 2).

Main reference Upload your references | Referencias | Coordinador : Kullander, Sven O. | Colaboradores

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

IUCN Red List Status (Ref. 120744)

  Endangered (EN) (B1ab(i,iii,v)); Date assessed: 31 January 2006

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías:
FAO(Publication : search) | FishSource |

Más información

Países
Áreas FAO
Ecosistemas
Ocurrencias, apariciones
Introducciones
Stocks
Ecología
Dieta
componentes alimenticios
consumo de alimento
Ración
Nombres comunes
Sinónimos
Metabolismo
Despredadores
Ecotoxicología
Reproducción
Madurez
Puesta
Agregación para la puesta
Fecundidad
Huevos
Egg development
Age/Size
Crecimiento
Length-weight
Length-length
Length-frequencies
Morfometría
Morfología
Larva
Dinámica larvaria
Reclutamiento
Abundancia
Referencias
Acuicultura
Perfil de acuicultura
Razas
Genética
Frecuencias de alelos
heritabilidad
Enfermedades
Procesamiento
Mass conversion
Colaboradores
Imágenes
Stamps, Coins Misc.
Sonidos
Ciguatera
Velocidad
Tipo de natación
Superficie branquial
Otolitos
Cerebros
Visión

Herramientas

Special reports

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Fuentes de Internet

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Árbol de la vida | Wikipedia(Go, búsqueda) | World Records Freshwater Fishing | Expediente Zoológico

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.00744 - 0.04060), b=3.03 (2.83 - 3.23), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Resiliencia (Ref. 120179):  Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (35 of 100) .
Price category (Ref. 80766):   Unknown.