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💧 Freshwater Least Concern 🌡️ Tropical

Southern banjo catfish

Amaralia oviraptor Friel & Carvalho, 2016
Max Length
12.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Southern banjo catfish (Amaralia oviraptor), first described by Friel & Carvalho, 2016 is a small fish in the family Aspredinidae (order Siluriformes). Adults typically reach 12.30 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Amaralia oviraptor
Authority
Friel & Carvalho, 2016
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
12.3 cm
Trophic Level
3.2
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 3; Anal soft rays: 5 - 6; Vertebrae: 29 - 31. Amaralia oviraptor differs from its only congener, A. hypsiura, by having more dorsal-fin rays (3 vs. 2); by having a lateral contact between middle and posterior nuchal plates (vs. middle and posterior nuchal plates not contacting each other laterally); by having feeble serrations along the distal portion of the anterior margin of pectoral-fin spine (vs. absence of serrations along the anterior margin); and by its longer cleithral process (17.4-19.5 % of SL, mean 18.2 % vs. 14.0-17.2 % of SL, mean=15.5 %) .: elongated.

🌀 Behaviour

Behavioural data for Southern banjo 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; demersal. Tropical South America: Paraná-Paraguay River system; throughout the Paraguay River Basin in Brazil, Paraguay and northern Argentina; and Paraná drainage in Argentina and Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.2±0.4
Food Items

both the eggs and developing embryos of other catfishes (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00324 × L3.03 (TL)
Max TL
12.3cm
Dorsal Rays
3
Anal Rays
6
Vertebrae
30

🌡️ 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
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Friel & Carvalho, 2016

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