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Papyrocranus afer  (Günther, 1868)

Reticulate knifefish
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Papyrocranus afer
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Senegal country information

Common names: Sèr
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Gambia and Casamance basins (Ref. 7431).
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/sg.html
National Fisheries Authority: https://www.refer.sn/sngal_ct/eco/oeps/
Occurrences: Occurrences Point map
Main Ref: Roberts, T.R., 1992
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Osteoglossiformes (Bony tongues) > Notopteridae (Featherbacks or knifefishes)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Main reference

Size / Weight / Age

Max length : 80.0 cm TL male/unsexed; (Ref. 7431); max. published weight: 1.3 kg (Ref. 3516)

Environment

Freshwater; demersal; pH range: 6.5 - ? ; dH range: 10 - ?

Climate / Range

Tropical; 24°C - 30°C (Ref. 2059), preferred ?

Distribution

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).
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).

Biology     Glossary (e.g. epibenthic)

Prefers calm waters with dense vegetation.

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: subsistence fisheries; aquarium: commercial

More information

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

Tools

Special reports

Download XML

Internet sources

BHL | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | ECOTOX | FAO(Aquaculture: production; ; publication : search) | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | Sea Around Us | SeaLifeBase | Tree of Life | uBio | uBio RSS | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record | Fishtrace

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.7510 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.6   ±0.5 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.29)

Vulnerability (Ref. 59153)
Moderate vulnerability (38 of 100)
Price category (Ref. 80766)
Unknown