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🌊 Marine Least Concern 🌡️ Subtropical

Remo flounder

Oncopterus darwinii Steindachner, 1874
Max Length
30.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
20–80 m
Climate
Subtropical
Resilience
-
Vulnerability
27.00/100
Typical Length
25 cm
Depth Zone
demersal

📖 Overview

Remo flounder (Oncopterus darwinii), first described by Steindachner, 1874 is a medium-sized fish. Adults typically reach 30.40 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 20 to 80 metres. It occurs in Subtropical 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
Oncopterus darwinii
Authority
Steindachner, 1874
Habitat
Marine
Climate
Subtropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
30.4 cm
Depth Range
20–80 m
Trophic Level
3.3
Vulnerability
27.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Oncopterus
Oncopterus
Species
Remo flounder
Oncopterus darwinii

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 59 - 67; Anal spines: 0; Anal soft rays: 41 - 46. Pectoral fin with 12 soft rays on ocular side, 11 on blind side. Strong spine anterior to anal fin, prominent in young specimens. Lateral line with a distinct curve above pectoral fin and with several transverse accessory branches. Pale brownish, covered with many small white spots; some larger white spots at upper and lower edges of body .: short and / or deep.

🌀 Behaviour

Behavioural data for Remo flounder 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 20 - 80 m . Subtropical; 33°S - 44°S, 67°W - 51°W Southwest Atlantic: Santa Catarina, Brazil to Golfo de Sán Matías, Argentina.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.3±0.46

📐 Morphometrics

Length–Weight Relationship: W = 0.0166 × L3.01 (TL)
Max TL
30.4cm
Dorsal Rays
63
Anal Rays
44

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Short and / or deep
Climate Zone
Subtropical
Described By
Steindachner, 1874

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