country information

Common names: [No common name]
Occurrence:
Salinity:
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
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Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
National Database:

Classification / Names

Actinopterigi (pesci con pinne raggiate) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Тилапия голубая, Tilapia azul, Golden tilapia, ... more

Main reference

Trewavas, E. 1983. (Ref. 2)
Bibliografia | Biblio | Coordinatore : Kullander, Sven O. | Collaboratori

Size / Peso / Age

Max length : 45.7 cm TL maschio/sesso non determinato; (Ref. 40637); common length : 16.0 cm TL maschio/sesso non determinato; (Ref. 12193); Peso massimo pubblicato: 2.0 kg (Ref. 40637)

Length at first maturity
L_m ?, range 13 - 20 cm

Ambiente

; acqua dolce; salmastro benthopelagico; potamodromo (Ref. 51243); distribuzione batimetrica 5 - ? m

Clima / Range

Tropical; 8°C - 30°C (Ref. 2), preferred ?; 35°N - 10°N

Distribuzione

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.
Stati | Aree FAO | Ecosystems | Presenze | Introduzioni

Short description

Spine dorsali (totale): 14 - 17; Raggi dorsali molli (totale): 11-15; Spine anali 3; Raggi anali molli: 8 - 11; Vertebre: 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).

IUCN Red List Status (Ref. 115185)

Not Evaluated

Threat to humans

Potential pest (Ref. 6465)

Human uses

Pesca: elevato interesse commerciale; Acquacoltura: commerciale; Acquario: Commerciale; esca: usually

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione

Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
Deposizione
Fecundity
Uova
Egg development

Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
Reclutamento
Abbondanza

Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Frequenze alleliche
Ereditarietà
Malattie
Elaborazione
Mass conversion

Collaboratori
Immagini
Stamps, Coins
Suoni
Ciguatera
Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
Vista

Strumenti

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
2.1 ±0.0 se; Based on diet studies.

Resilienza (Ref. 69278)
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (K=0.48-0.58; tm<1)

Vulnerability (Ref. 59153)
Low to moderate vulnerability (27 of 100)

Price category (Ref. 80766)
Unknown

Oreochromis aureus (Steindachner, 1864)