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💧 Freshwater Data Deficient 🐠 Aquarium 🌡️ Subtropical

Tachysurus Vachellii

Tachysurus vachellii Richardson, 1846
Max Length
42.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
-
Climate
Subtropical
Resilience
Medium
Vulnerability
43.00/100
Typical Length
21 cm
Depth Zone
demersal

📖 Overview

Tachysurus Vachellii (Tachysurus vachellii), first described by Richardson, 1846 is a large fish in the family Bagridae (order Siluriformes). Adults typically reach 42.30 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical 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 Data Deficient.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Bagridae kept in the hobby.

Scientific Name
Tachysurus vachellii
Authority
Richardson, 1846
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
IUCN Status
DD
Max Length
42.3 cm
Trophic Level
3.7
Resilience
Medium
Vulnerability
43.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 6 - 7; Anal soft rays: 21 - 24. High dorsal fin, start at above the point between pectoral and pelvic fins. Light colored in stomach, without any spots. Edges of all fins are black .: elongated.

🌀 Behaviour

Behavioural data for Tachysurus Vachellii is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
15.5cm TL

🌍 Habitat & Distribution

Freshwater; demersal. Subtropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.7±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01023 × L2.93 (TL)
Max TL
42.3cm
Dorsal Spines
2
Dorsal Rays
7
Anal Rays
23

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
43.00/100
Moderate vulnerability
Trophic Level
3.7
Predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Richardson, 1846

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