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Osteoglossiformes (Bony tongues) >
Notopteridae (Featherbacks or knifefishes) > Xenomystinae
Etymology: Papyrocranus: Greek, papyros = paper rush + Greek, kranion = skull (Ref. 45335).
More on author: Günther.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal; pH range: 6.5 - ? ; dH range: 10 - ?. Tropical; 24°C - 30°C (Ref. 2059)
Africa: Niger basin (upper Niger, Benue and Niger Delta), most coastal river basins from Senegal and Gambia eastward to include the Tano and Prah basins in Ghana, and the Cross and Sanaga basins east of the Niger delta (Ref. 7431). Absent from the Volta basin, Chad, Ogooué, Kwilu-Niari or Chiloango basins (Ref. 7431).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 80.0 cm TL mâle / non sexé; (Ref. 7431); poids max. publié: 1.3 kg (Ref. 3516)
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 2; Épines anales: 0; Rayons mous anaux: 113 - 141. With 35-45 ventral spines; head 5.0-5.1 times SL; eye diameter 4.6-5.3 times head length; length of nasal tentacle twice the eye diameter. Caudal vertebrae 63-69 (Ref. 7431).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Obligate air-breathing (Ref. 126274); Prefers calm waters with dense vegetation.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Roberts, T.R., 1992. Systematic revision of the old world freshwater fish family Notopteridae. Ichthyol. Explor. Freshwat. 2(4):361-383. (Ref. 7431)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: pêcheries vivrières; Aquarium: Commercial
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.7510 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00832 (0.00315 - 0.02195), b=2.99 (2.77 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.2 ±0.45 se; based on food items. |
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Generation time |
3.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.29). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (38 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Unknown.
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Nutriments (Ref. 124155) |
Calcium = 99.6 [54.9, 243.6] mg/100g; Iron = 1.46 [0.71, 2.93] mg/100g; Protein = 17.7 [15.9, 19.5] %; Omega3 = 0.472 [0.192, 1.213] g/100g; Selenium = 90 [31, 211] μg/100g; VitaminA = 22.8 [7.2, 69.1] μg/100g; Zinc = 1.28 [0.84, 2.02] mg/100g (wet weight); |