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💧 Freshwater Least Concern 🌡️ Tropical

Devario Laoensis

Devario laoensis Pellegrin & Fang, 1940
Max Length
8 cm
Max Weight
Lifespan
Trophic Level
3.4
Depth
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
Depth Zone

📖 Overview

Inhabits clear, rapidly flowing water . Found in rapid-running mountain streams of the middle Mekong . Feeds on insects and other invertebrates .

Scientific Name
Devario laoensis
Authority
Pellegrin & Fang, 1940
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
8 cm
Trophic Level
3.4
Resilience
High
Vulnerability
15.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 11 - 12; Anal spines: 0; Anal soft rays: 15 - 17; Vertebrae: 35 - 36. Complete lateral line, infraorbital process well developed. Distinguished from all other Danio species by its unique color pattern, having a dark stripe somewhat weakly pigmented anterior to vertical from dorsal-fin origin, getting thicker and darker posteriorly, and ending at the base of caudal fin. The most similar species, D. chrysotaeniatus, lacks the infraorbital process, has three rows of pharyngeal teeth, and has the P stripe extending to the end of the caudal-fin rays. Unlike all other striped Danio species so far examined for this character, D. laoensis has only two instead of three or four rows of pharyngeal teeth . With 8-9 1/2 branched dorsal rays and 12-14 1/2 branched anal rays .: elongated.

🌀 Behaviour

Behavioural data for Devario Laoensis is currently being reviewed.

🦐 Diet

Diet information for Devario Laoensis is currently being compiled.

🥚 Reproduction

Reproduction data for Devario Laoensis is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.39
Food Items

insects and other invertebrates (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00603 × L3.13 (TL)
Max TL
8cm
Dorsal Rays
12
Anal Rays
16
Vertebrae
36

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 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
Tropical
Described By
Pellegrin & Fang, 1940

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