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Scientific Name: Oreochromis niloticus (Linnaeus, 1758)
English Name: Nile tilapia
Local/Bangla Name: Telapia (তেলাপিয়া), Nailotika (নাইলোটিকা)
Bonyfish : Oreochromis niloticus

Photo: Fishbase

Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Teleostei
Order: Cichliformes
Family: Cichlidae
Description:
Dorsal spines (total): 15 – 18; Dorsal soft rays (total): 11-13; Anal spines: 3; Anal soft rays: 9 – 11; Vertebrae: 30 – 32. Diagnosis: A large deep-bodied tilapia, with a relatively small head (Ref. 118638). Jaws of mature male not greatly enlarged, length of lower jaw 29-37% of head length; genital papilla of breeding male not tassellated (Ref. 2). Body depth 36-50% of SL (Ref. 28714). Most distinguishing characteristic is the presence, at all life stages, of regular vertical stripes throughout depth of caudal fin (Ref. 4967, 53405, 118638). In smaller fishes, these are relatively wide and form an arc, and start at the base of the caudal fin (Ref. 118638). Males are bluish pink, sometimes with a dark throat, belly, anal and pelvic fins; females are usually brownish, silvery/white beneath with around 10 thin vertical bars.
Habitat & Distribution in Bangladesh:
Occurs in a wide variety of freshwater habitats like rivers, lakes, sewage canals and irrigation channels.
Environment:
Freshwater, Brackish (Benthopelagic; potamodromous)
Comments:
It is an exotic fish in Bangladesh. It hasbeen introduced from Thailand (1954) for the purpose of insect control, malaria eradication and aquaculture.
Main References:

Siddiqui KU, Islam MA, Kabir SMH, Ahmad M, Ahmed ATA, Rahman AKA 2005 Freshwater Fishes of Bangladesh, 2nd ed., Zool. Soc. Bangladesh, Dhaka, Bangladesh, xviii + 394 pp. AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M, Rahman AKA 2005 Freshwater Fishes of Bangladesh, 2nd ed., Zool. Soc. Bangladesh, Dhaka, Bangladesh, xviii + 394 pp. MM (eds.) 2007 Encyclopedia of Flora and Fauna of Bangladesh, Vol. 23. Freshwater Fishes. Asiatic Society of Bangladesh, Dhaka 300 pp.

DNA Barcodes from Bangladesh
GenBank Accession Number:
COI: KX657714  
Other DNA Barcodes & Nucleutide Sequences
Global IUCN conservation status:
Other Information