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💧 Freshwater Least Concern 🌡️ Tropical

Reticulate knifefish

Papyrocranus afer Günther, 1868
Max Length
80 cm
Max Weight
1.3 kg
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
38.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Reticulate knifefish (Papyrocranus afer), first described by Günther, 1868 is a large fish in the family Notopteridae (order Osteoglossiformes). Adults typically reach 80.00 cm in maximum length and up to 1.300 kg. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Papyrocranus afer
Authority
Günther, 1868
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
80 cm
Max Weight
1.3 kg
Trophic Level
3.2
Resilience
Medium
Vulnerability
38.00/100
Water Temp
24–30 °C
Salinity
0–0.5 ppt

🐟 Physical 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 .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Reticulate knifefish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal; pH range: 6.5 - ? ; dH range: 10 - ?. Tropical; 24°C - 30°C east of the Niger delta (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.2±0.45

📐 Morphometrics

Length–Weight Relationship: W = 0.00832 × L2.99 (TL)
Max TL
80cm
Max Weight
1,300g
Dorsal Rays
2
Anal Rays
127

🌡️ Water Parameters & Tolerance

Temperature Range
24–30°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
38.00/100
Moderate vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Günther, 1868

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Notopterus afer Günther 1868 Synonym
Papyrochranus afer Günther 1868 Synonym
Paryrocranus afer Günther 1868 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 98 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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