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🌊 Marine 🌡️ Tropical

Rough flathead

Grammoplites scaber Linnaeus, 1758
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
45–90 m
Climate
Tropical
Resilience
Medium
Vulnerability
30.00/100
Typical Length
20 cm
Depth Zone
demersal

📖 Overview

Rough flathead (Grammoplites scaber) is a ray-finned fish of the family Platycephalidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 30 cm. It occurs at depths between 45 and 90 metres. With a trophic level of 3.8, it is a mid-level predator.

Scientific Name
Grammoplites scaber
Authority
Linnaeus, 1758
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
Max Length
30 cm
Depth Range
45–90 m
Trophic Level
3.8
Resilience
Medium
Vulnerability
30.00/100
Migration
Amphidromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 11 - 13. Lateral line scales often 53, each scale with a backward directed spine that extends beyond rear margin of scale, especially along the caudal peduncle. Interorbital width 9% or more of head length.: fusiform / normal.

🌀 Behaviour

Behavioural data for Rough 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; brackish; demersal; amphidromous ; depth range 45 - 90 m . Tropical West Pacific: southern Arabian Sea and Bay of Bengal through Malaysia, Indonesia to Bali and Celebes, Gulf of Thailand, Viet Nam, Hong Kong and southern Philippines.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Migration
Amphidromous
Trophic Level
3.8±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.0055 × L3.07 (TL)
Max TL
30cm
Dorsal Spines
9
Dorsal Rays
12

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
30.00/100
Low vulnerability
Trophic Level
3.8
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Linnaeus, 1758

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Cottus scaber Linnaeus 1758 Synonym
Platycephalus neglectus Troschel 1840 Synonym
Platycephalus scaber Linnaeus 1758 Synonym
Thysanophrys scaber Linnaeus 1758 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 8 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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