Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
; স্বাদু পানি সমুদতলে ভাসমান বেনথোপেলাজিক. Tropical; 25°C - 28°C (Ref. 2060)
Africa: south Benin (lower Ouémé River) to Nigeria (lower Cross River)(Ref. 57290, 81648). Reports from Cameroon (Ref. 3575, 51193) unconfirmed and questionable (Ref. 57290, 81648). Report from Gabon dubious (Ref. 81648).
আকৃতি / ওজন / Age
পরিপক্কতা : Lm ? range ? - ? cm
Max length : 32.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 81648)
পৃষ্ঠীয় কাঁটা (মোট ) : 0; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 45 - 48; পায়ূ কাঁটা : 0; পায়ূর নরম পাখনা্তুন্ড: 32 - 35. Diagnosis: body elongate, tapering backwards; lateral-line scales medium-sized, numbering 73-83; head depressed anteriorly and covered with larger scales; lower jaw slightly longer than upper, with 3-4 well developed canines; dorsal and anal fins not touching caudal fin; dorsal fin with 45-48, anal with 32-35 rays; 8-11 chevron-shaped dark bars on sides (Ref. 57290, 81648).
Coloration: body light to dark grey, back and top of head darker, underside lighter; dark lateral band on head, broadening between hind margin of eye and hind margin of gill cover, followed by a large, rounded, black spot; small, rounded black spot at base of caudal fin; all fins covered with small dark spots forming more or less distinct oblique bands; ground colour of juveniles ochre, and a long, black lateral band extending from tip of snout to hind margin of caudal fin (Ref. 57290, 81648).
Body shape (shape guide): elongated.
Obligate air-breathing (Ref. 126274); Maximum SL reported is 17.2 cm (Ref. 57290).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
The eggs of this species float to the with floating plants covered surface where they are guarded by the male.
Teugels, G.G., 2003. Channidae. p. 443-446 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57290)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
মৎস্য: বাণিজ্যিক
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (সূত্র
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00407 - 0.01351), b=3.00 (2.84 - 3.16), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
ট্রফিক পর্যায়ে (সূত্র
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (সূত্র
120179): উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
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Nutrients (Ref.
124155): Calcium = 121 [59, 236] mg/100g; Iron = 1.02 [0.49, 1.92] mg/100g; Protein = 18.2 [16.5, 20.1] %; Omega3 = 0.271 [0.107, 0.695] g/100g; Selenium = 54.8 [19.9, 144.0] μg/100g; VitaminA = 68.4 [20.2, 219.4] μg/100g; Zinc = 1.52 [1.01, 2.32] mg/100g (wet weight);
