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🌊 Marine Least Concern 🌡️ Tropical

Trewavas' tonguefish

Symphurus trewavasae Chabanaud, 1948
Max Length
18.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
7–190 m
Climate
Tropical
Resilience
High
Vulnerability
20.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Trewavas' tonguefish (Symphurus trewavasae), first described by Chabanaud, 1948 is a medium-sized fish in the family Cynoglossidae (order Pleuronectiformes). Adults typically reach 18.20 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 7 to 190 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Symphurus trewavasae
Authority
Chabanaud, 1948
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
18.2 cm
Depth Range
7–190 m
Trophic Level
3.3
Resilience
High
Vulnerability
20.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 86 - 93; Anal spines: 0; Anal soft rays: 72 - 78. : elongated.

🌀 Behaviour

Behavioural data for Trewavas' tonguefish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; depth range 7 - 190 m , usually 40 - 100 m . Tropical; 20°S - 45°S, 64°W - 40°W Southwest Atlantic: southeastern Brazil to central Argentina.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00501 × L3.18 (TL)
Max TL
18.2cm
Dorsal Rays
90
Anal Rays
75

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
20.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Chabanaud, 1948

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