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💧 Freshwater Least Concern 🌡️ Temperate

Roundnose knifefish

Rhamphichthys hahni Meinken, 1937
Max Length
26.7 cm
Max Weight
Lifespan
Trophic Level
3.2
Depth
Climate
Temperate
Resilience
Vulnerability
14.00/100
Typical Length
Depth Zone

📖 Overview

Roundnose knifefish (Rhamphichthys hahni) is a ray-finned fish of the family Rhamphichthyidae. It inhabits freshwater waters. This species can reach a maximum total length of 26.7 cm. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Rhamphichthys hahni
Authority
Meinken, 1937
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
26.7 cm
Trophic Level
3.2
Vulnerability
14.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Roundnose knifefish is currently being compiled.

🌀 Behaviour

Behavioural data for Roundnose knifefish is currently being reviewed.

🦐 Diet

Diet information for Roundnose knifefish is currently being compiled.

🥚 Reproduction

Reproduction data for Roundnose knifefish is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Temperate South America: Paraná River basin (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00269 × L3.07 (TL)
Max TL
26.7cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
14.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Temperate
Described By
Meinken, 1937

👥 Community & Contribute

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