New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater Data Deficient 🌡️ Tropical

Akysis Varius

Akysis varius Ng & Kottelat, 1998
Max Length
4 cm
Max Weight
Lifespan
Trophic Level
3.4
Depth
Climate
Tropical
Resilience
Vulnerability
10.00/100
Typical Length
Depth Zone

📖 Overview

Hides in decomposing vegetation in stream beds, where it apparently feeds on zooplankton and rotifers .

Scientific Name
Akysis varius
Authority
Ng & Kottelat, 1998
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
4 cm
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 5 - 6; Anal soft rays: 8 - 10; Vertebrae: 31 - 33. Distinguished from all its congeners by the following unique combination of characters: truncate caudal fin; length of caudal peduncle 16.1-19.8% SL; depth of caudal peduncle 6.5-9.3% SL; length of adipose-fin base 25.6-29.5% SL; interorbital distance 42-46% HL; eye diameter 13-20% HL; length of nasal barbel 44-66% HL; straight lateral margins of the head when viewed dorsally; and 0-5 serrae on the posterior edge of the pectoral spine .: elongated.

🌀 Behaviour

Behavioural data for Akysis Varius is currently being reviewed.

🦐 Diet

Diet information for Akysis Varius is currently being compiled.

🥚 Reproduction

Reproduction data for Akysis Varius is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.6
Food Items

zooplankton and rotifers (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
4cm
Dorsal Rays
6
Anal Rays
9
Vertebrae
32

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2010

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ng & Kottelat, 1998

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Akysis Varius ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.