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🌊 Marine Least Concern 🌡️ Tropical

Scribbled unicornfish

Naso maculatus Randall & Struhsaker, 1981
Max Length
60 cm
Max Weight
-
Lifespan
-
Trophic Level
2.3
Depth
43–220 m
Climate
Tropical
Resilience
Medium
Vulnerability
39.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Scribbled unicornfish (Naso maculatus) is a ray-finned fish of the family Acanthuridae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 60 cm. It occurs at depths between 43 and 220 metres. With a trophic level of 2.3, it is an omnivore, consuming both plant and animal matter. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Naso maculatus
Authority
Randall & Struhsaker, 1981
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
60 cm
Depth Range
43–220 m
Trophic Level
2.3
Resilience
Medium
Vulnerability
39.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 26 - 28; Anal spines: 2; Anal soft rays: 26 - 28. Body elongate, higher and more bluish than N. lopezi. Forehead without rostral prominence even in adults. Two small peduncular plates each with a sharp, approximately semicircular, laterally projecting keel. caudal fin emarginate without a filament. Reaches 46 cm SL.: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Scribbled unicornfish is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; depth range 43 - 220 m . Tropical; 29°N - 19°N, 119°E - 156°W Pacific Ocean: antitropical, from Japan and Lord Howe Island to the Hawaiian Islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2.3±0.1

📐 Morphometrics

Length–Weight Relationship: W = 0.02089 × L2.95 (TL)
Max TL
60cm
Dorsal Spines
7
Dorsal Rays
27
Anal Spines
2
Anal Rays
27

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
39.00/100
Moderate vulnerability
Trophic Level
2.3
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Randall & Struhsaker, 1981

🦠 Common Diseases

The following diseases are known to affect Scribbled unicornfish.

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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