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Oreochromis aureus (Steindachner, 1864)
Blue tilapia
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Oreochromis aureus
Picture by CAFS
Pictures | Imagem do Google
Picture by CAFS
French Polynesia country information
Common names:
[No common name]
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: commercial | Ref: FAO, 2002
Regulations: | Ref:
Uses: no uses
Comments: Not encountered in the wild (Philippe Keith, pers. com.).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: FAO, 2002
National Database:
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: commercial | Ref: FAO, 2002
Regulations: | Ref:
Uses: no uses
Comments: Not encountered in the wild (Philippe Keith, pers. com.).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: FAO, 2002
National Database:
Common names from other countries
Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa
> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Steindachner.
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range Ecologia
; Água doce; estuarina bentopelágico; potamódromo (Ref. 51243); intervalo de profundidade 5 - ? m. Tropical; 8°C - 30°C (Ref. 2); 35°N - 10°N
Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri
Africa and Eurasia: Jordan Valley, Lower Nile, Chad Basin, Benue, middle and upper Niger, Senegal River (Ref. 21). Introduced in the oasis of Azraq (Jordan) as well as in warm water ponds of USA, South and Central America and South East Asia. At least one country reports adverse ecological impact after introduction.
Length at first maturity / Tamanho / Peso / Idade
Maturity: Lm 19.0, range 13 - 20 cm
Max length : 45.7 cm TL macho/indeterminado; (Ref. 40637); common length : 16.0 cm TL macho/indeterminado; (Ref. 12193); peso máx. Publicado: 2.0 kg (Ref. 40637)
Max length : 45.7 cm TL macho/indeterminado; (Ref. 40637); common length : 16.0 cm TL macho/indeterminado; (Ref. 12193); peso máx. Publicado: 2.0 kg (Ref. 40637)
Descrição breve Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 14 - 17; Raios dorsais moles (total) : 11 - 15; Espinhos anais: 3; Raios anais moles: 8 - 11; Vértebras: 28 - 31. Diagnosis: Adults: narrow preorbital bone (depth max. 21.5% of head length in fishes up to 21.3cm SL); lower pharyngeal jaw with short blade; no enlargement of the jaws in mature fish (lower jaw not exceeding and usually less than 36.8% head length) (Ref. 2). Caudal without regular dark vertical stripes (Ref. 2, 53405, 54467), but with a broad pink to bright red distal margin (Ref. 2). Breeding males assume an intense bright metallic blue on the head, a vermilion edge to the dorsal fin and a more intense pink on the caudal margin (Ref. 2, 54467). Breeding females with the edges of dorsal and caudal fins in a paler more orange color (Ref. 2). Juveniles: upper line of head profile running upward from snout at sharp angle; lower pharyngeal bone nearly triangular, teeth numerous but not densely crowded; dorsal and anal fin striped, with stripes running obliquely on the soft dorsal and longitudinally on the caudal fin; black Tilapia-mark on soft dorsal present; body dark; lower lip developed from beneath (Ref. 54566).
Cold tolerant (Ref. 23, 61, 55352), occuring at temperatures ranging from 8°-30°C (Ref. 2), tolerating up to 41 °C (Ref. 23). Tolerates fairly brackish conditions (Ref. 3, 23, 61, 2001, 6465, 54362). Forms schools; is sometimes territorial; inhabits warm ponds and impoundments as well as lakes and streams (Ref. 5723, 11028), in open water as well as among stones and vegetation (Ref. 11028). Feeds on phytoplankton and small quantities of zooplankton (Ref. 3, 61, 6465, 52307). Young fish have a more varied diet which includes large quantities of copepods and cladocerans (Ref. 2, 61, 6465), but they also take pieces of small invertebrates (Ref. 52307). Ovophilic, agamous (Ref. 52307), maternal mouthbrooder (Ref. 364, 52307). Sexual maturity in ponds reached at age of 5-6 months (Ref. 55352). Reproduces in both fresh and brackish water (Ref. 61, 5723). Good taste (Ref. 61).
Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Nesting usually in shallow water weedy areas (Ref. 96). Males establish territory and dig a spawning pit (Ref. 2, 6465, 54601), using mouth and fins (Ref. 2), up to 60cm deep and 4-6m in diameter; a number of territories can often be found clustered together (Ref. 52307). Territories are defended by means of agressive behaviour (Ref. 6465), including lateral display, lateral biting and mouth-to-mouth combat (Ref. 2). Reproduction is stimulated by long photoperiods and inhibited by short daylengths (Ref. 54365). Reproduction requires a minimum temperature of about 20°C (Ref. 2). Males visit schools of females and attempt to attract a female spawning partner (Ref. 2, 52307). Courting behaviour in the nest consists of lateral display by both sexes with nipping and tail-flapping (Ref. 2). Eggs are deposited in single clutches, from several dozen to 100 eggs (Ref. 52307), and are taken into the females mouth as soon as they are fertilized (Ref. 2, 6465, 52307), with a peak spawning frequency around the 9-11th hour of light (Ref. 31140, 54365). One female may hold up to 2000 eggs in her mouth (Ref. 2). The female swims away to deeper water with the brood after spawning is complete (Ref. 2, 52307), while the male renews spawning activities with another female. Hatching occurs about 3 days after oviposition (Ref. 2). Incubation time varies with temperature, 13-14 days at 25-27°C (Ref. 2, 52307) or 8-10 days at 29°C (Ref. 144), and juveniles leave the mother's mouth when they are about 1.1cm in length (Ref. 54601). The young school near parent's head for a few days, reentering the mouth at any sign of danger or at a gesture of the female; parent-offspring relationship ceases after 5 days (Ref. 2).
Referência principal
Upload your references | Referências | Coordenador : 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)
Utilização humana
Pescarias: altamente comercial; Aquacultura: espécies comerciais; peixe desportivo: sim; Aquário: Espécies comerciais; isco: usually
FAO(Aquaculture systems: produção; pescarias: produção; publication : search) | FishSource |
Mais informação
Population dynamics
Parâmetros de crescimento
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequência de comprimento
Mass conversion
Recrutamento
Abundância
Parâmetros de crescimento
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequência de comprimento
Mass conversion
Recrutamento
Abundância
Life cycle
Reprodução
Maturidade
Fecundidade
Desova
Spawning aggregations
Ovos
Desenvolvimento dos ovos
Larvas
Dinâmica larvar
Reprodução
Maturidade
Fecundidade
Desova
Spawning aggregations
Ovos
Desenvolvimento dos ovos
Larvas
Dinâmica larvar
Anatomy
Área branquial
Brain
Otolith
Área branquial
Brain
Otolith
Physiology
Body composition
Nutrients
Consumo de oxigénio
Tipo de natação
Velocidade de natação
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Consumo de oxigénio
Tipo de natação
Velocidade de natação
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Human related
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Ferramentas
E-book | Guia de campo | Chaves de identificação | Ferramenta auxiliar de frequências de comprimento | Ferramenta sobre a história de vida | Mapa dos pontos | Classification Tree
| Catch-MSY |
Relatórios especiais
Descarregue XML
Fontes da internet
Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes(Género, Espécies) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genoma, nucleotídeo) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de dados nacionais | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Árvore da vida | Wikipedia(ir para, procurar) | World Records Freshwater Fishing | Registo zoológico
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=0.01738 (0.01356 - 0.02227), b=2.99 (2.95 - 3.03), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Nível Trófico (Ref. 69278): 2.1 ±0.0 se; based on diet studies.
Resiliência (Ref. 120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (K=0.48-0.58; tm<1).
Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (26 of 100).