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💧 Freshwater 🌡️ Tropical

Amphilius Ruziziensis

Amphilius ruziziensis Thomson & Page, 2015
Max Length
12.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
38.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Amphilius Ruziziensis (Amphilius ruziziensis), first described by Thomson & Page, 2015 is a small fish in the family Amphiliidae (order Siluriformes). Adults typically reach 12.10 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.

Scientific Name
Amphilius ruziziensis
Authority
Thomson & Page, 2015
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
12.1 cm
Trophic Level
3
Resilience
Medium
Vulnerability
38.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 7 - 10. Diagnosis: Amphilius ruziziensis is diagnosed from A. pedunculus, A. frieli, and A. crassus by its more slender caudal peduncle, caudal peduncle depth 8.6-9.5% of standard length vs. 9.7-12.3%, and from A. jacksonii, A. pedunculus, A. crassus, and A. lujani by its narrower interorbital width, 23.4-25.1% of head length vs. 26.7-35.8% . It is further diagnosed from A. frieli, A. crassus, and A. lujani by its more slender body, body depth at anus 11.1-12.9% of standard length vs. 13.5-17.4% . Amphilius ruziziensis is further diagnosed from A. frieli by having fewer branchiostegal rays, 6-7 vs. 8-9, fewer total gill rakers on the first gill arch, 6-8, rarely 5 or 9 vs. 10-11, rarely 9 or 12, and a longer caudal peduncle, caydal peduncle length 18.7-20.3% of standard length vs. 14.4-16.4%; it is further diagnosed from A. crassus by a longer caudal peduncle, caudal peduncle length 18.7-20.3% of standard length vs. 13.3-15.5%, and shorter dorsal-fin insertion to adipose-fin insertion length, 38.2-41.5% of standard length vs. 42.2-44.6%; it is further diagnosed from A. jacksonii by its deeper caudal peduncle, caudal peduncle depth 8.6-9.5% of standard length vs. 4.8-7.9% . : elongated.

🌀 Behaviour

Behavioural data for Amphilius Ruziziensis 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

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.0049 × L3.15 (TL)
Max TL
12.1cm
Dorsal Rays
7
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
38.00/100
Moderate vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Thomson & Page, 2015

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