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Classification / Names

এ্যাকটিনপটেরীজিআই (চেপ্টা-ডানার মাছ) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Тилапия нильская, Tilapia du Nil, Tilapia del Nilo, ... more

Main reference

Trewavas, E. 1983. (Ref. 2)
সূত্র সংখ্যা | Biblio | সমম্বয়কারী : Kullander, Sven O. | সহযোগী

আকৃতি / ওজন / Age

Max length : 60.0 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 4967); সবের্াচ্চ প্রকাশিত ওজন : 4.3 kg (Ref. 40637); সর্বোচ্চ উলি্ল্লখিত বয়স : 9 বৎসর (Ref. 164)

Length at first maturity
L_m 18.6, range 6 - 28 cm

পরিবেশ

; স্বাদু পানি; ঈষৎ লোনা সমুদতলে ভাসমান বেনথোপেলাজিক; পোটামোড্রোমাস (Ref. 51243); গভীরতার পরিসীমা 0 - 20 m (Ref. 32849), usually ? - 20 m (Ref. 34290)

সহযোগী / বিন্যাস

Tropical; 14°C - 33°C (Ref. 3), preferred ?; 32°N - 5°S, 17°W - 38°E

বিতরণ

Africa: naturally occurring in coastal rivers of Israel (Ref. 5166), Nile basin (including lake Albert, Edward and Tana), Jebel Marra, Lake Kivu, Lake Tanganyika, Awash River, various Ethiopian lakes, Omo River system, Lake Turkana, Suguta River and Lake Baringo (Ref. 2). In West Africa natural distribution covers the basins of the Senegal, Gambia, Volta, Niger, Benue and Chad, with introduced specimens reported from various coastal basins (Ref. 53405). Widely introduced for aquaculture, with many existing strains. Several countries report adverse ecological impact after introduction. The following subspecies were previously recognized: Oreochromis niloticus baringoensis, Oreochromis niloticus cancellatus, Oreochromis niloticus eduardianus, Oreochromis niloticus filoa, Oreochromis niloticus niloticus, Oreochromis niloticus sugutae, Oreohromis niloticus tana and Oreohromis niloticus vulcani.
দেশ সমূহ | এফ এ ও এলাকাসমূহ | বাস্তুতন্ত্র | দৃষ্টিগোচর | প্রচলন

Short description

পৃষ্ঠীয় কাঁটা (মোট ): 15 - 18; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ): 11-13; পায়ূ কাঁটা 3; পায়ূর নরম পাখনা্তুন্ড: 9 - 11; কশেরুকা : 30 - 32. Diagnosis: 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). Most distinguishing characteristic is the presence of regular vertical stripes throughout depth of caudal fin (Ref. 4967, 53405).

Occur in a wide variety of freshwater habitats like rivers, lakes, sewage canals and irrigation channels (Ref. 28714). Mainly diurnal. Feed mainly on phytoplankton or benthic algae. Oviparous (Ref. 205). Mouthbrooding by females (Ref. 2). Extended temperature range 8-42 °C, natural temperature range 13.5 - 33 °C (Ref. 3). Maximum depth from Ref. 34290. Marketed fresh and frozen (Ref. 9987).