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🌊 Marine Data Deficient 🌡️ Tropical

Humpnose unicornfish

Naso tuberosus Lacepède, 1801
Max Length
60 cm
Max Weight
-
Lifespan
25 yrs
Trophic Level
2
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
33.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Humpnose unicornfish (Naso tuberosus), first described by Lacepède, 1801 is a large fish in the family Acanthuridae (order Acanthuriformes). Adults typically reach 60.00 cm in maximum length. Reported lifespan reaches approximately 25 years. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds primarily on plankton, plant material, and detritus. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Naso tuberosus
Authority
Lacepède, 1801
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
60 cm
Lifespan
25 years
Trophic Level
2
Resilience
Low
Vulnerability
33.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 5; Dorsal soft rays (total): 26 - 29; Anal spines: 2; Anal soft rays: 26 - 28. Small blackish spots usually present, at least dorsoanteriorly on body. Adults with a large bulbous protuberance at front of snout (Ref 9808).: fusiform / normal.

🌀 Behaviour

Behavioural data for Humpnose unicornfish is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

Size at Maturity
35cm TL

🌍 Habitat & Distribution

Marine; brackish; reef-associated. Tropical Central Pacific: Guam (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
2

📐 Morphometrics

Length–Weight Relationship: W = 0.02089 × L2.95 (TL)
Max TL
60cm
Dorsal Spines
5
Dorsal Rays
28
Anal Spines
2
Anal Rays
27

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
33.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Lacepède, 1801

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Acanthurus nasus Shaw 1803 Synonym
Cyphomycter tuberosus Lacepede 1802 Homotypic
Naseus tuber Commerson 1829 Synonym

🦠 Common Diseases

The following diseases are known to affect Humpnose unicornfish.

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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