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💧 Freshwater Least Concern 🌡️ Tropical

Knoepffler's Elephantfish

Boulengeromyrus knoepffleri Taverne & Géry, 1968
Max Length
41.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
43.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Knoepffler's Elephantfish (Boulengeromyrus knoepffleri), first described by Taverne & Géry, 1968 is a large fish in the family Mormyridae (order Osteoglossiformes). Adults typically reach 41.30 cm in maximum length. 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
Boulengeromyrus knoepffleri
Authority
Taverne & Géry, 1968
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
41.3 cm
Trophic Level
3.2
Resilience
Medium
Vulnerability
43.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 23 - 24; Anal spines: 0; Anal soft rays: 28 - 31. Body deep and laterally compressed . Dorsal profile of the back straight, upper profile of head straight, pointing downward; ventral side of the head concave; snout elongate, its length 29 to 35 % of head length . Submental swelling reduced .: fusiform / normal.

🌀 Behaviour

Behavioural data for Knoepffler's Elephantfish 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. Tropical indo River basin and the Ntem River basin (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.2±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.01259 × L2.86 (TL)
Max TL
41.3cm
Dorsal Rays
24
Anal Rays
30

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
43.00/100
Moderate vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Taverne & Géry, 1968

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Knoepffler's Elephantfish
🇫🇷French Mormyre

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 19 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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