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

💧 Freshwater 🌡️ Tropical

Pseudomystus Nuchalis

Pseudomystus nuchalis Ng, 2025
Max Length
9.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Pseudomystus Nuchalis (Pseudomystus nuchalis) is a ray-finned fish of the family Bagridae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 9.4 cm. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Pseudomystus nuchalis
Authority
Ng, 2025
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
9.4 cm
Trophic Level
3.2
Resilience
High
Vulnerability
19.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 6; Anal soft rays: 9 - 11. This species is distinguished from its congeners by the following set of characters: colour pattern of pale yellow patches on the body; presence of nuchal concavity; snout 55-63% HL; adipose fin more anteriorly positioned relative to the anal fin (adipose-fin origin at vertical through anal-fin origin); presence of pale yellow patches on the body never coalescing to form irregular bands; absence of a supracleithral process; adipose fin with a base 13.2-19.0% SL, whose posterior insertion is separate from the dorsal procurrent caudalfin rays; nuchal plate with straight or slightly convex margins; head 22.1-24.5% SL; and adipose-fin base 13.2-19.0% SL .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Pseudomystus Nuchalis is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L2.93 (TL)
Max TL
9.4cm
Dorsal Rays
6
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ng, 2025

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Pseudomystus Nuchalis ↗
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.