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💧 Freshwater Vulnerable 🌡️ Tropical

Henn's Knifefish

Gymnotus henni Ocampo, 2003
Max Length
31.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
34.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Henn's Knifefish (Gymnotus henni) is a ray-finned fish of the family Gymnotidae. It inhabits freshwater waters. This species can reach a maximum total length of 31.2 cm. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Vulnerable on the IUCN Red List.

Scientific Name
Gymnotus henni
Authority
Ocampo, 2003
Habitat
Freshwater
Climate
Tropical
IUCN Status
VU
Max Length
31.2 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
34.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal soft rays: 223 - 275. Head with brown ground color and irregularly shaped pale-yellow blotches located on chin, gular area, behind and under eyes, over opercle, and between eyes; pale yellow bands as broad or broader than dark brown bands on anterior half of body; obliquely oriented hyaline and dark stripes at caudal end of anal fin .

🌀 Behaviour

Behavioural data for Henn's Knifefish is currently being reviewed.

🦐 Diet

Diet information for Henn's Knifefish is currently being compiled.

🥚 Reproduction

Reproduction data for Henn's Knifefish is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Río Calima, Valle de Cauca Department and the Río Juradó, Chocó Department in Colombia.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00427 × L2.98 (TL)
Max TL
31.2cm
Anal Rays
249

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2014

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
34.00/100
Low vulnerability
Trophic Level
3.4
Predator
Climate Zone
Tropical
Described By
Ocampo, 2003

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Henn's Knifefish
🌍CES paúhořovec sanjuanský
🇪🇸Spanish beringo · mayupa

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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