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🌊 Marine Least Concern ⚠️ Venomous ⚡ Traumatogenic 🌡️ Tropical

Blue tang surgeonfish

Acanthurus coeruleus Bloch & Schneider, 1801
Max Length
39 cm
Max Weight
Lifespan
Trophic Level
2.2
Depth
2–50 m
Climate
Tropical
Resilience
Medium
Vulnerability
59.00/100
Typical Length
25 cm
Depth Zone
reef

📖 Overview

Inhabits coral reefs, inshore grassy or rocky areas. Forms small groups . Mainly diurnal. Feeds entirely on algae . At Fernando de Noronha Archipelago in southwestern Atlantic, juveniles hold cleaning stations together with the doctorfish (Acanthurus chirurgus) and sergeant major (Abudefduf saxatilis) and graze algae as well as pick molted skin and parasites from green turtles (Chelonia mydas). This behavior is preceded by a characteristic inspection usually followed by feeding nips on the turtles’ skin (head, limbs, and tail), as well as on the carapace. The most inspected and cleaned body parts are the flippers . Diurnal species . It forms resident spawning aggregations in late afternoon after high tide . The spine on both sides of the caudal peduncle may inflict painful wounds . Marketed fresh. Maximum depth reported taken from Ref. 127989.

Scientific Name
Acanthurus coeruleus
Authority
Bloch & Schneider, 1801
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
39 cm
Depth Range
2–50 m
Latitude
27°S – 43°N
Trophic Level
2.2
Resilience
Medium
Vulnerability
59.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 26 - 28; Anal spines: 3; Anal soft rays: 24 - 26. A deep-bodied surgeonfish (body depth 1.7 in SL) with a conspicuous yellow caudal spine. Has the most distinctive coloration of all western Atlantic surgeonfishes .: short and / or deep.

🌀 Behaviour

Behavioural data for Blue tang surgeonfish is currently being reviewed.

🦐 Diet

Diet information for Blue tang surgeonfish is currently being compiled.

🥚 Reproduction

Reproduction data for Blue tang surgeonfish is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 2 - 50 m , usually 2 - 18 m . Tropical; 43°N - 27°S, 100°W - 4°W

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2.2

📐 Morphometrics

Length–Weight Relationship: W = 0.0257 × L2.96 (TL)
Max TL
39cm
Dorsal Spines
9
Dorsal Rays
27
Anal Spines
3
Anal Rays
25

🌡️ 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
59.00/100
High vulnerability
Trophic Level
2.2
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
43°N – 27°S
Described By
Bloch & Schneider, 1801

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
? caeruleus Bloch & Schneider 1801 Synonym
Acanthurus brevis Poey 1860 Synonym
Acanthurus broussonnetii Desmarest 1823 Synonym
Acanthurus caeruleus Bloch & Schneider 1801 Synonym
Acanthurus coerulus Bloch & Schneider 1801 Synonym
Acanthurus heliodes Barbour 1905 Synonym
Acanthurus helioides Barbour 1905 Synonym
Acanthurus violaceus Castelnau 1855 Synonym
Acronurus caeruleatus Poey 1875 Synonym
Hepatus caeruleus Bloch & Schneider 1801 Synonym
Hepatus pawnee Breder 1927 Synonym
Teuthis coeruleus Bloch & Schneider 1801 Synonym
Teuthis helioides Barbour 1905 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 125 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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