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🌊 Marine Least Concern 🌡️ Tropical

Large-spined flathead

Insidiator macracanthus Bleeker, 1869
Max Length
26 cm
Max Weight
Lifespan
Trophic Level
3.7
Depth
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
18 cm
Depth Zone
demersal

📖 Overview

Large-spined flathead (Insidiator macracanthus) is a ray-finned fish. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 26 cm. With a trophic level of 3.7, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Insidiator macracanthus
Authority
Bleeker, 1869
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
26 cm
Trophic Level
3.7
Resilience
High
Vulnerability
27.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Insidiator
Insidiator
Species
Large-spined flathead
Insidiator macracanthus

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 11 - 12; Anal spines: 0; Anal soft rays: 12 - 13. Preopercular spines 3, upper long, bayonet-like, reaching to or past opercular margin. Anterior 13-33 lateral line scales bearing a small spine or ridge. Iris lappet bilobed in adults, crenate in juveniles. Finger-like interopercular flap present. Total gill rakers on first arch 7-9, usually 8.: elongated.

🌀 Behaviour

Behavioural data for Large-spined flathead is currently being reviewed.

🦐 Diet

Diet information for Large-spined flathead is currently being compiled.

🥚 Reproduction

Reproduction data for Large-spined flathead is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; non-migratory; depth range ? - 132 m . Tropical West Pacific: southern India and Sri Lanka to Malaysia, Gulf of Thailand, Hong Kong, Taiwan, Indonesia, Philippines, the Arafura Sea (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.7±0.6

📐 Morphometrics

Max TL
26cm
Dorsal Spines
9
Dorsal Rays
12
Anal Rays
13

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.7
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Bleeker, 1869

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