Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি সমুদতলে ভাসমান বেনথোপেলাজিক. Tropical
Africa: widely distributed from the Cross River up to the Chiloango basin, including the Mungo, Wouri, Sanaga, Nyong, Kribi, Ntem, Ogowé and Nyanga; also known from the Dja (middle Congo River basin) and from Tibesti (Chad)(Ref. 81639).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 43.5 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 2801)
পৃষ্ঠীয় কাঁটা (মোট ) : 1; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 10 - 13; পায়ূর নরম পাখনা্তুন্ড: 8 - 9. Diagnosis: mouth inferior (Ref. 81639). Lips normally well developed, lower lip continuous (Ref. 81282, 81639). Geographical variations in mouth form: soft or “rubbery” versus keratinised (Ref. 2940, 81282). Two pairs of well-developed barbels; barbels long, posterior barbel reaching to or beyond posterior margin of eye (Ref. 81639). Scale formula 4.5/26-30/4.5 (Ref. 2940, 81282) or 4.5-5.5/26-33/3.5-4.5/2-3 (Ref. 81639). 2-3 (Ref. 81639) or 3 (Ref. 2940, 81282) scales between lateral line and pelvic-fin base. 12 scales around caudal peduncle (Ref. 2940, 81282, 81639). 8-9 (Ref. 2940, 81282) or 8-10 (Ref. 81639) dorsal fin branched rays. Last simple dorsal ray ossified and as long as or shorter than head in specimens over 150 mm SL (Ref. 2940, 81282) or measuring 0.67x HL (Ref. 81639).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
Lévêque, C. and J. Daget, 1984. Cyprinidae. p. 217-342. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 2801)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
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=0.00933 (0.00422 - 0.02065), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): মাধ্যম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১.৪-৪.৪ বৎসর (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
