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

💧 Freshwater Least Concern 🌡️ Tropical

Gilbertolus Maracaiboensis

Gilbertolus maracaiboensis Schultz, 1943
Max Length
13 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
17.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Gilbertolus Maracaiboensis (Gilbertolus maracaiboensis) is a ray-finned fish of the family Acestrorhynchidae. It inhabits freshwater waters. This species can reach a maximum total length of 13 cm. With a trophic level of 3.9, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Gilbertolus maracaiboensis
Authority
Schultz, 1943
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
13 cm
Trophic Level
3.9
Resilience
High
Vulnerability
17.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 11; Anal spines: 3 - 4; Anal soft rays: 40 - 45; Vertebrae: 38. The presence of a long thin and up-turned process on the posterosuperior region of the rhinosphenoid is autapomorphic for this species.: fusiform / normal.

🌀 Behaviour

Behavioural data for Gilbertolus Maracaiboensis is currently being reviewed.

🦐 Diet

Diet information for Gilbertolus Maracaiboensis is currently being compiled.

🥚 Reproduction

Reproduction data for Gilbertolus Maracaiboensis is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Lago Maracaibo basin, Venezuela.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.9±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.01202 × L3 (TL)
Max TL
13cm
Dorsal Rays
11
Anal Spines
4
Anal Rays
43
Vertebrae
38

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
17.00/100
Low vulnerability
Trophic Level
3.9
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Schultz, 1943

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Gilbertolus Maracaiboensis ↗
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Spotted incorrect or outdated data?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.