New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater Least Concern 🌡️ Temperate

Megalancistrus Parananus

Megalancistrus parananus Peters, 1881
Max Length
58.8 cm
Max Weight
Lifespan
Trophic Level
Depth
Climate
Temperate
Resilience
Very low
Vulnerability
68.00/100
Typical Length
Depth Zone
demersal

📖 Overview

Megalancistrus Parananus (Megalancistrus parananus) is a ray-finned fish. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 58.8 cm. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Megalancistrus parananus
Authority
Peters, 1881
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
58.8 cm
Resilience
Very low
Vulnerability
68.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Megalancistrus
Megalancistrus
Species
Megalancistrus Parananus
Megalancistrus parananus

🐟 Physical Description

Physical description for Megalancistrus Parananus is currently being compiled.

🌀 Behaviour

Behavioural data for Megalancistrus Parananus is currently being reviewed.

🦐 Diet

Diet information for Megalancistrus Parananus is currently being compiled.

🥚 Reproduction

Size at Maturity
17.5cm TL

🌍 Habitat & Distribution

Freshwater; demersal. Temperate South America: Paraguay, Paraná and Uruguay River basins.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic

📐 Morphometrics

Length–Weight Relationship: W = 0.0195 × L3.01 (TL)
Max TL
58.8cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
68.00/100
High vulnerability
Climate Zone
Temperate
Described By
Peters, 1881

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Megalancistrus Parananus ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.