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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Subtropical

Tachysurus Trilineatus

Tachysurus trilineatus Zheng, 1979
Max Length
7.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
15.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Tachysurus Trilineatus (Tachysurus trilineatus), first described by Zheng, 1979 is a small fish in the family Bagridae (order Siluriformes). Adults typically reach 7.60 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 Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Bagridae kept in the hobby.

Scientific Name
Tachysurus trilineatus
Authority
Zheng, 1979
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7.6 cm
Trophic Level
3.4
Resilience
High
Vulnerability
15.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 18 - 19. Nude without scale, complete lateral line. Well developed dorsal fin, adipose fin about 1.4-2.8 times the length of the dorsal fin, nearly arc-shaped. Yellowish brown in color, with three dark yellowish lateral strips in the side. One of the strips along the lateral line is discontinued .: elongated.

🌀 Behaviour

Behavioural data for Tachysurus Trilineatus 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. Subtropical endemic to Dong Jiang drainage in Guangdong Province, China.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L2.92 (TL)
Max TL
7.6cm
Dorsal Spines
2
Dorsal Rays
7
Anal Rays
19

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Zheng, 1979

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