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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Tatia Nigra

Tatia nigra Pinheiro, 2008
Max Length
11.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Tatia Nigra (Tatia nigra), first described by Pinheiro, 2008 is a small fish in the family Auchenipteridae (order Siluriformes). Adults typically reach 11.70 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Auchenipteridae kept in the hobby.

Scientific Name
Tatia nigra
Authority
Pinheiro, 2008
Habitat
Freshwater
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
11.7 cm
Trophic Level
3.4
Resilience
High
Vulnerability
19.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 5; Anal soft rays: 10; Vertebrae: 32. Diagnosed uniquely from other species of the genus Tatia by its brown body color and short postcleithral process about 60.0% HL. Can be differentiated also from other congeners by its postcleithral spine not reaching vertical through origin of dorsal fin; nasal with well developed medial flanges; and total vertebrae 32 . : short and / or deep.

🌀 Behaviour

Behavioural data for Tatia Nigra 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: Central Amazon basin in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01995 × L3.01 (TL)
Max TL
11.7cm
Dorsal Spines
1
Dorsal Rays
5
Anal Rays
10
Vertebrae
32

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Pinheiro, 2008

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