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💧 Freshwater 🌡️ Tropical

Petrocephalus Arnegardi

Petrocephalus arnegardi Lavoué & Sullivan, 2014
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
12.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Petrocephalus Arnegardi (Petrocephalus arnegardi) is a ray-finned fish of the family Mormyridae. It inhabits freshwater waters in benthic environments. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Petrocephalus arnegardi
Authority
Lavoué & Sullivan, 2014
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
Trophic Level
3.2
Resilience
High
Vulnerability
12.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Diagnosis: Petrocephalus arnegardi is distinguished from all other Petrocephalus species of Central Africa by the following combination of characteristics: pigmentation pattern comprising three well-defined, bilateral black patches, one usually distinct round/ovoid subdorsal black mark situated slightly anterior to dorsal, one black mark at the base of each pectoral fin, and one ovoid black mark centered at the base of caudal fin; dorsal fin at least one third shorter than anal fin; dorsal fin with at least 20 branched rays but no more than 22; anal fin with at least 30 branched rays; 16 teeth or fewer in upper jaw, 25 teeth or fewer in lower jaw; eye relatively large, ration head length and eye-diameter less than 4.7; mouth subterminal; ration of head length to mouth position between 4.2 and 5.6; mouth small, ration head length and mouth width more than 4.1; and EOD of normal polarity, mainly biphasic with sometimes the presence of a small-amplitude positive third phase . : fusiform / normal.

🌀 Behaviour

Behavioural data for Petrocephalus Arnegardi is currently being reviewed.

🦐 Diet

Diet information for Petrocephalus Arnegardi is currently being compiled.

🥚 Reproduction

Reproduction data for Petrocephalus Arnegardi is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01549 × L2.86 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
12.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Lavoué & Sullivan, 2014

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