Oreochromis squamipinnis : fisheries, aquarium

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Oreochromis squamipinnis (Günther, 1864)

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Oreochromis squamipinnis
Male picture by FAO

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > 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 Ecologie

; zoetwater benthopelagisch.   Tropical; 9°S - 15°S

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Africa: Lake Malawi and its catchment (Ref. 118630), including crater lakes Kingiri, Ilamba and Massoko (Ref. 118638) and Upper Shire River (Ref. 37112).

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm 26.9, range 20 - 37 cm
Max length : 36.0 cm SL mannelijk/geslacht niet bekend; (Ref. 4967)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 16 - 17; Dorsale zachte stralen (totaal): 10-11; Anale stekels 3; Anale zachte stralen: 8 - 10. Diagnosis: A heavily-built large tilapia species with a wide rounded head; dwarf populations exist in some crater lakes, showing bony 'hunger-form' body shape (Ref. 118638). Females and juveniles with grey bodies and 6 or more vertical bars; males have a bright blue, occasionally white or green, 'mask' across the head; when fully ripe, the underside of most of the body can be black, with the upper surface a conspicuous white to pale blue; genital tassel can be long and branched, pinkish to bright yellow; females and non-territorial males are indistinguishable from Oreochromis karongae (Ref. 118638).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

A semi-pelagic species (Ref. 4967), found in all kinds of habitats but seen mostly in shallow water; it is abundant in the southeastern arm of Lake Malawi, where it occurs in shallow, vegetated bays (Ref. 5595). It feeds on phytoplankton and sometimes from the sediment on the sand; diatoms constitute the major part of its diet (Ref. 5595). Major component of the fisheries catch in Lake Malawi (Ref. 118638). IUCN conservation status is endangered, due to declining population trend (Ref. 118638).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Mating behavior includes the T-stand, both partners alternately forming the horizontal part of the T. Eggs are laid in batches and immediately picked up by the female. Fertilization takes place both on the ground and in the mouth. Females brood eggs/young, guarding their fry until about 15 mm (Ref. 2781).

Voornaamste referentie Upload your references | Referenties | Coördinator : Kullander, Sven O. | Medewerkers

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

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Ernstig bedreigd (CR) (A2d); Date assessed: 22 May 2018

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Aquatic Commons | BHL | Cloffa | Websites from users | Bekijk FishWatcher gegevens | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genoom, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia(ga naar, zoek) | World Records Freshwater Fishing | Zoological Record

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=0.01660 (0.00843 - 0.03266), b=2.99 (2.83 - 3.15), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.1   ±0.00 se; Based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.24-0.45; tm=3).
Kwetsbaarheid (Ref. 59153):  Moderate vulnerability (38 of 100) .
Prijsklasse (Ref. 80766):   Unknown.