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

💧 Freshwater Least Concern 🌡️ Tropical

Pantanal parasitic catfish

Paravandellia oxyptera Miranda Ribeiro, 1912
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found to exhibit parasitic traits . Inhabits rivers with sandy to muddy bottom. Forages both during the day and at night seeks the gill chambers of larger fishes, especially catfishes. Enters and leaves the gill chamber during the host's ventilating movements: feeds on blood drawn from the gill filaments and may stay in the gill chamber for 1-3 min; when gorged with blood, moves to the bottom and buries itself in the sand. A single large catfish tethered on the river bank may feed thousand of these parasitic catfish over a period of up to 6 hours. Two females, 1.8 cm TL, caught in January (wet season) had about 150 mature oocytes each, and one male 2.0 cm TL had well-developed testes. Large numbers of this fish may kill fishes tethered by fishermen .

Scientific Name
Paravandellia oxyptera
Authority
Miranda Ribeiro, 1912
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Trophic Level
3.3
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Paravandellia
Paravandellia
Species
Pantanal parasitic catfish
Paravandellia oxyptera

🐟 Physical Description

Physical description for Pantanal parasitic catfish is currently being compiled.

🌀 Behaviour

Behavioural data for Pantanal parasitic catfish 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: Paraná, Paraguay and Uruguay River basins.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.6
Food Items

blood drawn from the gill filaments and may stay in the gill chamber for 1-3 min; when gorged with b

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Tropical
Described By
Miranda Ribeiro, 1912

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Pantanal parasitic catfish ↗
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.