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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Günther.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten; brackvatten bentopelagisk. Tropical; 24°C - 28°C (Ref. 2059); 23°N - 7°S
Africa: Coastal rivers of Kenya from the Mwena River to the lower Athi below Lugard's Falls; also near its mouth, including Lake Chem Chem; Lower and middle Tana River, Northern Uaso Nyiro, Juba system and Webi Shebeli; Nguruman; and Ethiopia (Ref. 5166). Probably also in Lake Momello, south of the Kenya-Tanzania border (Ref. 5166, 118638). Three subspecies are recognized: Oreochromis spilurus niger, Oreochromis spilurus percivali and Oreochromis spilurus spilurus.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 19.2 cm SL hane/ej könsbestämd; (Ref. 2); 16.3 cm (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 14 - 17; Mjukstrålar i ryggfenan (totalt) : 10 - 13; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 9 - 10; Ryggkotor: 28 - 30.
Body shape (shape guide): short and / or deep.
Feeds on insects, plants and diatoms (Ref. 2).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Spawns in shallow water with shelving bottom in ponds. Size of first spawning depends on population density (lower at higher densities). Mating pit is the size and shape of a saucer. Eggs probably fertilized before being taken into the mouth by the female, or are fertilized inside the mouth (Ref. 2).
Trewavas, E., 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. British Mus. Nat. Hist., London, UK. 583 p. (Ref. 2)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: kommersiell; Akvarium: Kommersiell
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01862 (0.00830 - 0.04177), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
2.6 ±0.35 se; based on food items. |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (tm<=1: multiple spawning per year). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (18 of 100). 🛈 |
Priskategori (Ref. 80766) |
Unknown.
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Näringsämnen (Ref. 124155) |
Calcium = 32.9 [12.2, 191.3] mg/100g; Iron = 1.36 [0.64, 2.82] mg/100g; Protein = 17.4 [15.7, 19.1] %; Omega3 = 0.186 [0.086, 0.409] g/100g; Selenium = 64.5 [27.3, 139.1] μg/100g; VitaminA = 8.03 [1.52, 36.61] μg/100g; Zinc = 2.2 [1.2, 4.8] mg/100g (wet weight); based on nutrient studies. |