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

💧 Freshwater Least Concern 🌡️ Tropical

Gilbertolus Alatus

Gilbertolus alatus Steindachner, 1878
Max Length
14.3 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
20.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Gilbertolus Alatus (Gilbertolus alatus) is a ray-finned fish of the family Acestrorhynchidae. It inhabits freshwater waters. This species can reach a maximum total length of 14.3 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
Gilbertolus alatus
Authority
Steindachner, 1878
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
14.3 cm
Trophic Level
4
Vulnerability
20.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 10 - 11; Anal soft rays: 49 - 53. Fewer lateral line scales (58-59, versus 64-70 in G. maracaiboensis and 68-75 in G. atratoensis), fewer scale rows between lateral line and anal-fin origin (9-11, versus 12-14 in G. maracaiboensis and 13-16 in G. atratoensis) and fewer scale rows around caudal peduncle (19, versus 21-23 in G. maracaiboensis and 21-23 in G. atratoensis).

🌀 Behaviour

Behavioural data for Gilbertolus Alatus is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Rio Magdalena and Lago Maracaibo basin.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
4±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.01202 × L3 (TL)
Max TL
14.3cm
Dorsal Rays
11
Anal Rays
51

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2014

📊 Population Risk & Fisheries

Fishing Vulnerability
20.00/100
Low vulnerability
Trophic Level
4
Apex / Top predator
Climate Zone
Tropical
Described By
Steindachner, 1878

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

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Spotted incorrect or outdated data?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