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💧 Freshwater 🌡️ Tropical

Amphilius Krefftii

Amphilius krefftii Boulenger, 1911
Max Length
20.8 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
48.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Amphilius Krefftii (Amphilius krefftii), first described by Boulenger, 1911 is a medium-sized fish in the family Amphiliidae (order Siluriformes). Adults typically reach 20.80 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 krefftii
Authority
Boulenger, 1911
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
20.8 cm
Trophic Level
3
Resilience
Low
Vulnerability
48.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 6 - 7; Anal spines: 0; Anal soft rays: 8 - 10. Diagnosis: Amphilius krefftii is distinguished from A. chalei, A. grandis, A. athiensis, and A. uranoscopus by its emarginate caudal fin, vs. forked, and from A. grandis and A. athiensis by the presence of distinct pale patches at the origin and insertion of the dorsal fin; it also differs from A. chalei, A. athiensis, A. grandis, and A. uranoscopus by having a short body with usually 36 vertebrae, vs. elongate body with 37-40 vertebrae; it also differs from A. cryptobullatus, A. athiensis, and A. uranoscopus by the absence of dark marking on the body, vs. body mottled in A. cryptobullatus, finely spotted in A. athiensis and with diffuse black stripe along side in A. uranoscopus; it also differs from A. athiensis by the absence of spots on the fins, vs. fins heavily spotted; it also differs from A. chalei by having a deeper body, body depth at anus 11.1-16.5% of standard length vs. 8.9-10.8%, and a deeper caudal peduncle, caudal peduncle depth 10.2-13.5% of standard length vs. 7.1-9.7%; it also differs from A. cryptobullatus by having normally developed bilateral bony swimbladder capsules, vs. bilateral bony swimbladder capsules extremely large . : elongated.

🌀 Behaviour

Behavioural data for Amphilius Krefftii 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
20.8cm
Dorsal Rays
7
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
48.00/100
Moderate-High vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Boulenger, 1911

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