Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
; آب شيرين موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.. 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).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 43.5 cm TL جنس نر / بدون خواص جنسي; (Ref. 2801)
خارهاي باله پشتي (کل) : 1; شعاع نرم باله پشتي (کل) : 10 - 13; شعاع نرم باله مخرجي: 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
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-2)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
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=0.00955 (0.00430 - 0.02123), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
