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💧 Freshwater 🌡️ Temperate

Triangle Yunnan loach

Yunnanilus triangulus Liu, Lyu, Du & Chen, 2025
Max Length
5.5 cm
Max Weight
Lifespan
Trophic Level
3.1
Depth
Climate
Temperate
Resilience
Medium
Vulnerability
31.00/100
Typical Length
Depth Zone
demersal

📖 Overview

Triangle Yunnan loach (Yunnanilus triangulus) is a ray-finned fish of the family Nemacheilidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 5.5 cm. With a trophic level of 3.1, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Yunnanilus triangulus
Authority
Liu, Lyu, Du & Chen, 2025
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
Max Length
5.5 cm
Trophic Level
3.1
Resilience
Medium
Vulnerability
31.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 11; Anal soft rays: 7. This species is distinguished by the following set of characters: a unique triangular tubercle on the male caudal peduncle; absence of scales on head and thorax; eye diameter shorter than interorbital width; absence of outer gill raker; absence of processus dentiformis; six branched pelvic-fin rays; eight branched dorsal-fin rays and specific metric characters .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Triangle Yunnan loach is currently being reviewed.

🦐 Diet

Diet information for Triangle Yunnan loach is currently being compiled.

🥚 Reproduction

Reproduction data for Triangle Yunnan loach is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Temperate

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.01 (TL)
Max TL
5.5cm
Dorsal Rays
11
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
31.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Liu, Lyu, Du & Chen, 2025

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