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🌊 Marine 🌡️ Subtropical

Australian bartail flathead

Platycephalus australis Imamura, 2015
Max Length
47.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
-
Climate
Subtropical
Resilience
Medium
Vulnerability
50.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Australian bartail flathead (Platycephalus australis), first described by Imamura, 2015 is a large fish in the family Platycephalidae (order Perciformes). Adults typically reach 47.70 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Platycephalus australis
Authority
Imamura, 2015
Habitat
Marine
Climate
Subtropical
Max Length
47.7 cm
Trophic Level
3.9
Resilience
Medium
Vulnerability
50.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 8 - 9; Dorsal soft rays (total): 13 - 14; Anal soft rays: 13. This species is distinguished by the following set of characters: D1 I (a small isolated spine anteriorly); D2 13-14, usually 13: A 13; pectoral-fin rays 19-21, usually 20; gill rakers 1-2 + 3-8 = 4-10 (number tends to decrease with growth); postorbital length 51.6-63.6% HL; snout, area anteroventral to eye, interorbit, and occipital region scaled; upper iris lappet usually simple and triangular; with a finger-like interopercular flap; upper jaw without large caniniform teeth; no teeth on dorsal surface of anterolateral edge of upper jaw; palatine teeth in two rows; vomerine teeth usually in one row; caudal fin with a yellow marking on midline when fresh .Cross section: flattened.

🌀 Behaviour

Behavioural data for Australian bartail flathead 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. Subtropical; 22°S - 28°S West Pacific: Australia.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.9±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.09 (TL)
Max TL
47.7cm
Dorsal Spines
9
Dorsal Rays
14
Anal Rays
13

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
50.00/100
Moderate-High vulnerability
Trophic Level
3.9
Predator
Climate Zone
Subtropical
Described By
Imamura, 2015

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