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

🌊 Marine Data Deficient 🌡️ Tropical

Longhead grunt

Pomadasys auritus Cuvier, 1830
Max Length
52 cm
Max Weight
Lifespan
Trophic Level
3.5
Depth
Climate
Tropical
Resilience
Medium
Vulnerability
44.00/100
Typical Length
43 cm
Depth Zone

📖 Overview

Longhead grunt (Pomadasys auritus) is a ray-finned fish of the family Haemulidae. It inhabits marine (saltwater) waters. This species can reach a maximum total length of 52 cm. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.

Scientific Name
Pomadasys auritus
Authority
Cuvier, 1830
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
DD
Max Length
52 cm
Trophic Level
3.5
Resilience
Medium
Vulnerability
44.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 14; Anal spines: 3; Anal soft rays: 7. Body color silvery to light burnished gold; dorsal fins with well defined blackish spots on interspinous membranes; adults with blackish spot on tip of each scale on back and upper sides. Body depth 3.2 tomes in SL. Head large; upper profile convex; gill cover and angle of preopercle lengthened as convex rounded lobe; gill cover extending to above 1/3 to 1/2 of pectoral fins. Mouth small; maxilla reaching to eye. Pores 2 and a median pit on chin .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Longhead grunt is currently being reviewed.

🦐 Diet

Diet information for Longhead grunt is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing during breeding .

🌍 Habitat & Distribution

Marine; brackish; benthopelagic. Tropical South Wales, Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.0166 × L3.02 (TL)
Max TL
52cm
Dorsal Spines
12
Dorsal Rays
14
Anal Spines
3
Anal Rays
7

🌡️ 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
44.00/100
Moderate vulnerability
Trophic Level
3.5
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Cuvier, 1830

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Longhead grunt ↗
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.