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Oreochromis malagarasi Trewavas, 1983
Life   Vertebrata   Fish   Cichlidae   Oreochromis


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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Oreochromis&speciesname=malagarasi ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Oreochromis&speciesname=malagarasi
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https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Oreochromis&speciesname=malagarasi ---> https://fishbase.mnhn.fr/summary/Oreochromis-malagarasi.html
Oreochromis malagarasi, Malagarasi tilapia
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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Oreochromis malagarasi Trewavas , 1983

Malagarasi tilapia Upload your photos  and  videos
Pictures | Google image Image of Oreochromis malagarasi (Malagarasi tilapia) Oreochromis malagarasi
Picture by RMCA

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335 ) .

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

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Malagarasi River and marginal waters of Lake Tanganyika near Kigoma in Tanzania (Ref. 118638 ) and Burundi (Ref. 54847 ).

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 27.0 cm TL male/unsexed; (Ref. 118638 )

Short description Morphology | Morphometrics

Dorsal spines (total): 16 - 17; Dorsal soft rays (total): 12-13; Anal spines : 3; Anal soft rays : 10 - 12; Vertebrae : 29 - 30. Diagnosis: A large bodied Oreochromis , characterised by a deep body, short snout and 3-4 blotches on the flank coupled with around 6 faint wide vertical bars (Ref. 118638 ). It is a tasselled species, resembling Oreochromis upembae from which it differs in the following features: mid-lateral blotches present as in O. upembae , caudal fin either without spots or with a few irregularly arranged or in quincunx; caudal rays variously scaly but the inter-radial membranes usually free of scales; vertebrae 29-30; scales in lateral line series 30-32; dorsal spines XVI-XVII, soft rays 12-13; and outer teeth mainly bicuspid, but often including a few tricuspids (Ref. 2 ). With grey/green fins and flanks; male dorsal and caudal fins have red/orange margins; ripening males reported to be dark green-grey, possibly almost black (Ref. 118638 ).

Biology     Glossary (e.g. epibenthic)

Inhabits rivers and swamps (Ref. 4967 ). It feeds on the soft, flocculent bottom deposits, which consisted of finely divided plant material and many protozoa, bacteria, algae and detritus (Ref. 2 , 52307 ); the young were feeding on fish offal near canoe-landings (Ref. 2 ). A maternal mouthbrooder (Ref. 118638 ). A locally important species in artisanal fisheries (Ref. 118638 ); it contributes to swamp fishery (Ref. 4967 ). Recorded from aquaculture ponds near Kigoma (Ref. 118638 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

A maternal mouthbrooder (Ref. 118638 ). In various aquarium observations, male builds shallow spawning nests; female deposits eggs in nest; male fertilizes eggs; female takes eggs in mouth; female swallows additional sperms (Ref. 37042 ).

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

Genner, M.J., G.F. Turner and B.P. Ngatunga , 2018. A guide to the tilapia fishes of Tanzania. Martin J. Genner, George F. Turner and Benjamin P. Ngatunga, August 2018. 29 p. (Ref. 118638 )

IUCN Red List Status (Ref. 130435 )

    Not Evaluated  

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245 ). Resilience (Ref. 120179 ):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). Fishing Vulnerability (Ref. 59153 ):  Low vulnerability (17 of 100).

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Updated: 2024-05-23 02:28:15 gmt
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