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

Diadromous Data Deficient 🌡️ Subtropical

Tongue sole

Cynoglossus semilaevis Günther, 1873
Max Length
61.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
-
Climate
Subtropical
Resilience
Medium
Vulnerability
46.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Tongue sole (Cynoglossus semilaevis) is a ray-finned fish of the family Cynoglossidae. It inhabits diadromous, migrating between freshwater and the sea waters in benthic environments. This species can reach a maximum total length of 61.1 cm. With a trophic level of 3.7, it is a mid-level predator. It is assessed as Data Deficient on the IUCN Red List.

Scientific Name
Cynoglossus semilaevis
Authority
Günther, 1873
Habitat
Diadromous
Climate
Subtropical
IUCN Status
DD
Max Length
61.1 cm
Trophic Level
3.7
Resilience
Medium
Vulnerability
46.00/100
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Tongue sole is currently being compiled.

🌀 Behaviour

Behavioural data for Tongue sole is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal. Subtropical East China Sea (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Trophic Level
3.7±0.6
Food Items

benthic crustaceans and fish (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00398 × L3.12 (TL)
Max TL
61.1cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
46.00/100
Moderate-High vulnerability
Trophic Level
3.7
Predator
Climate Zone
Subtropical
Described By
Günther, 1873

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Tongue sole ↗
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Spotted incorrect or outdated data?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.