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💧 Freshwater Least Concern 🌡️ Tropical

Megalonema Amaxanthum

Megalonema amaxanthum Lundberg & Dahdul, 2008
Max Length
24.1 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
33.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Megalonema Amaxanthum (Megalonema amaxanthum) is a ray-finned fish of the family Pimelodidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 24.1 cm. With a trophic level of 4, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Megalonema amaxanthum
Authority
Lundberg & Dahdul, 2008
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
24.1 cm
Trophic Level
4
Resilience
High
Vulnerability
33.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 12 - 16; Vertebrae: 42 - 45. Total vertebrae including Weberian complex .: elongated.

🌀 Behaviour

Behavioural data for Megalonema Amaxanthum is currently being reviewed.

🦐 Diet

Diet information for Megalonema Amaxanthum is currently being compiled.

🥚 Reproduction

Reproduction data for Megalonema Amaxanthum is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: Amazon River basin, Brazil, Guyana, Peru, Bolivia and probably Colombia and Ecuador.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
4±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00794 × L3.17 (TL)
Max TL
24.1cm
Dorsal Spines
1
Dorsal Rays
7
Anal Rays
14
Vertebrae
44

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
33.00/100
Low vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Lundberg & Dahdul, 2008

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