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

💧 Freshwater Near Threatened 🌡️ Tropical

Yellow finned medaka

Oryzias profundicola Kottelat, 1990
Max Length
6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
10.00/100
Typical Length
5 cm
Depth Zone
-

📖 Overview

Adults occur along gently sloping shores with large boulders on sand and pebble bottom . Found only below 1.5 m and in small groups of 2-20 individuals . Non-annual breeders .

Scientific Name
Oryzias profundicola
Authority
Kottelat, 1990
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
NT
Max Length
6 cm
Trophic Level
3.5
Resilience
Low
Vulnerability
10.00/100
Migration
Non-migratory
Water Temp
22–25 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 10 - 14; Anal soft rays: 26 - 29. Distinguished from all other species of the genus by the following characters: 26-29 anal rays; 10-14 dorsal rays; and body depth 30-35% SL. These are unique characters except for dorsal ray counts for which the counts of 10-12 are shared with other species . : elongated.

🌀 Behaviour

Behavioural data for Yellow finned medaka is currently being reviewed.

🦐 Diet

Diet information for Yellow finned medaka is currently being compiled.

🥚 Reproduction

Reproduction data for Yellow finned medaka is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 7.5 - 8.5; non-migratory. Tropical; 22°C - 25°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Non-migratory
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00437 × L3.11 (TL)
Max TL
6cm
Dorsal Rays
12
Anal Rays
28

🌡️ Water Parameters & Tolerance

Temperature Range
22–25°C
pH Range
7.5–8.5
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Kottelat, 1990

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Yellow finned medaka ↗
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Spotted incorrect or outdated data?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.