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

💧 Freshwater Least Concern 🌡️ Tropical

Sturisomatichthys Kneri

Sturisomatichthys kneri Ghazzi, 2005
Max Length
23.9 cm
Max Weight
-
Lifespan
-
Trophic Level
2.4
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
42.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Sturisomatichthys Kneri (Sturisomatichthys kneri) is a ray-finned fish. It inhabits freshwater waters. This species can reach a maximum total length of 23.9 cm. With a trophic level of 2.4, it is an omnivore, consuming both plant and animal matter. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Sturisomatichthys kneri
Authority
Ghazzi, 2005
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
23.9 cm
Trophic Level
2.4
Resilience
Medium
Vulnerability
42.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Sturisomatichthys
Sturisomatichthys
Species
Sturisomatichthys Kneri
Sturisomatichthys kneri

🐟 Physical Description

Distinguished from all other species of Sturisoma by its greater interorbital width (7.4-8.0% vs. 4.5-6.2% in other species) and little or no contribution of the frontal to the orbital rim (vs. presence in remaining species). Also differs by the absence of ventral expansion of the sphenotic (vs. a moderate expansion present in S. barbatum, S. guentheri, S. monopelte, S. nigrirostrum and S. rostratum. Can also be distinguished from most congeners by having 18 plates in the midventral plate series with keels not coalesced (vs. 20-22 in the remaining species .: elongated.

🌀 Behaviour

Behavioural data for Sturisomatichthys Kneri is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Lago Maracaibo drainage in Venezuela.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.4±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.00398 × L3.11 (TL)
Max TL
23.9cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
42.00/100
Moderate vulnerability
Trophic Level
2.4
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ghazzi, 2005

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Sturisomatichthys Kneri ↗
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.