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💧 Freshwater Data Deficient 🌡️ Tropical

Trombetas knifefish

Rhamphichthys longior Triques, 1999
Max Length
80 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
51.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Trombetas knifefish (Rhamphichthys longior) is a ray-finned fish of the family Rhamphichthyidae. It inhabits freshwater waters. This species can reach a maximum total length of 80 cm. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.

Scientific Name
Rhamphichthys longior
Authority
Triques, 1999
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
80 cm
Trophic Level
3.3
Vulnerability
51.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 0. Body depth 7.3 to 7.6% of the anal fin length. Head length 10.8 to 11.1% of the anal fin length. No caudal fin .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Trombetas knifefish is currently being reviewed.

🦐 Diet

Diet information for Trombetas knifefish is currently being compiled.

🥚 Reproduction

Reproduction data for Trombetas knifefish is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Paru Lake in the lower Amazon River basin, Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00269 × L3.07 (TL)
Max TL
80cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
51.00/100
Moderate-High vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Triques, 1999

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Knifefish · Sand Knife Fish

🗺️ 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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