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💧 Freshwater ⚠️ Venomous ⚡ Traumatogenic 🌡️ Tropical

Hexanematichthys Henni

Hexanematichthys henni Fisher & Eigenmann, 1922
← All Species
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
46.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Hexanematichthys Henni (Hexanematichthys henni) is a ray-finned fish of the family Ariidae. It inhabits freshwater waters in benthic environments. With a trophic level of 3.6, it is a mid-level predator. Venomous.

Scientific Name
Hexanematichthys henni
Authority
Fisher & Eigenmann, 1922
Habitat
Freshwater
Climate
Tropical
Trophic Level
3.6
Resilience
Medium
Vulnerability
46.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Hexanematichthys Henni is currently being compiled.

🌀 Behaviour

Behavioural data for Hexanematichthys Henni is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 👄 Mouth Brooder
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.6±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00468 × L3.13 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
46.00/100
Moderate-High vulnerability
Trophic Level
3.6
Predator
Climate Zone
Tropical
Described By
Fisher & Eigenmann, 1922

⚠️ Venom Profile

Medical Warning: This species is venomous. Seek immediate medical attention if envenomated. Contact emergency services and follow first aid guidance below.
Venom Type
proteinaceous
Delivery
dorsal and pectoral spines with venom glands
Potency
Mild
Mortality Risk
Low
Symptom Onset
2min
Duration
12.0hrs
Antivenom
✗ Not Available
Named Toxins
crinotoxins protein toxins
Symptoms
  • pain
  • oedema
  • rare systemic effects
Affected Body Systems
peripheral nervous system
First Aid
Hot water immersion.
Medical Treatment

Wound care, analgesia.

References: Compiled from Bhide (2018), Halstead et al. (1988) and family-specific envenomation literature

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