Papyrocranus afer (Günther, 1868)

Reticulate knifefish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Osteoglossiformes \| Notopteridae
Synonyms	Notopterus afer, ... more
Common names	Feather back, Gouprake, Sortagtig knivbladfisk, ... more

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Image of Papyrocranus afer (Reticulate knifefish)

Picture by Kaladjian, M.

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Main reference

Roberts, T.R. 1992. (Ref. 7431)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 80.0 cm TL male/unsexed; (Ref. 7431); max. published weight: 1,320 g (Ref. 3516)

Environment

Demersal; freshwater; pH range: 6.5 - ? ; dH range: 10 - ?

Climate / Range

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). It does not occur in the Volta basin, Chad, Ogooué, Kwilu-Niari or Chiloango basins (Ref. 7431).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 2; Anal spines: 0; Anal soft rays: 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).

Prefers calm waters with dense vegetation.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: subsistence fisheries; aquarium: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| Point map

Special reports
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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.29)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (38 of 100)	Not marketed/unknown

Entered by Cruz, Tess

Modified by Torres, Armi G.

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Page last modified by : elaxamana, 15 July 2009

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