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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Thompson's surgeonfish

Acanthurus thompsoni Fowler, 1923
Max Length
27 cm
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
0–119 m
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

This occasionally schooling species occurs in steep outer reef slopes and drop-offs . Benthopelagic over coral and sand . Feeds on zooplankton, particularly large gelatinous forms, and on fish eggs and crustaceans . Minimum depth reported taken from Ref. 128797.

Scientific Name
Acanthurus thompsoni
Authority
Fowler, 1923
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
27 cm
Depth Range
0–119 m
Latitude
29°S – 23°N
Trophic Level
3.6
Resilience
High
Vulnerability
25.00/100
Water Temp
24–27 °C
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 23 - 26; Anal spines: 3; Anal soft rays: 23 - 26. Body uniformly brown to dark brown; caudal fin pale in color (snow white in live fishes). Small, dark spot below and adjacent to axil of pectoral fin. Anterior gill rakers 15-18; posterior 14-16. Snout length 7.9 to 8.2 times in SL. Least depth of caudal peduncle 2.2 to 2.5 times in head length (Ref 9808).: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Thompson's surgeonfish is currently being reviewed.

🦐 Diet

Diet information for Thompson's surgeonfish is currently being compiled.

🥚 Reproduction

Reproduction data for Thompson's surgeonfish is currently being compiled.

🌍 Habitat & Distribution

Marine; brackish; reef-associated; depth range 0 - 119 m , usually 5 - 70 m . Tropical; 24°C - 27°C ; 23°N - 29°S, 32°E - 124°W East Africa, including the Mascarene Islands (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
3.6±0.41
🐠 Schooling
Food Items

zooplankton, particularly large gelatinous forms, and on fish eggs and crustaceans (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.02291 × L2.96 (TL)
Max TL
27cm
Dorsal Spines
9
Dorsal Rays
25
Anal Spines
3
Anal Rays
25

🌡️ Water Parameters & Tolerance

Temperature Range
24–27°C
Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3.6
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
23°N – 29°S
Described By
Fowler, 1923

🍽️ Edibility & Flavour

"Thompson's surgeonfish is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 18.8 g
Omega-3 (total) 150 mg

🔬 Mercury Safety

Mercury data for Thompson's surgeonfish has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Acanthurus philippinus Herre 1927 Synonym
Hepatus philippinus Herre 1927 Synonym
Hepatus thompsoni Fowler 1923 Synonym
Teuthis thompsoni Fowler 1923 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Thompson's surgeonfish ↗
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