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

💧 Freshwater Least Concern 🌡️ Tropical

Pale catfish

Rhamdia guatemalensis Günther, 1864
Max Length
25.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
-
Climate
Tropical
Resilience
Very low
Vulnerability
62.00/100
Typical Length
-
Depth Zone
-

📖 Overview

This species occupies main channel of rivers and streams, either with turbid waters and high sediment loads or with transparent waters and few nutrients. It prefers pools and slow-flowing waters of different depths and has plant material deposits and heavy substrates such as rocks and stones which serve as shelter for this fish during the day .

Scientific Name
Rhamdia guatemalensis
Authority
Günther, 1864
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
25.1 cm
Trophic Level
3.7
Resilience
Very low
Vulnerability
62.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🐟 Physical Description

This species has the following characters: pigmented body; functional eyes; dorsal fin base 14.4-19.4% of SL; origin of adipose fin anterior to the anus; maxillary barbels extend beyond pelvic fin origin; adipose fin insertion closer to the dorsal fin than to the caudal fin; brown body with a distinct lateral longitudinal dark band .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Pale catfish is currently being reviewed.

🦐 Diet

Diet information for Pale catfish is currently being compiled.

🥚 Reproduction

Reproduction data for Pale catfish is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; potamodromous . Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
3.7±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00933 × L2.99 (TL)
Max TL
25.1cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
62.00/100
High vulnerability
Trophic Level
3.7
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Günther, 1864

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Pale catfish ↗
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Spotted incorrect or outdated data?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.