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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Blackspot surgeonfish

Acanthurus bariene Lesson, 1831
Max Length
50 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
6–50 m
Climate
Tropical
Resilience
Medium
Vulnerability
36.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Occurs in clear seaward reef slopes, below 15 m, usually below 30 m . Adults mainly on deep coastal reef slopes and outer reef walls . Found singly or in pairs . Feeds on algal film on bare rocks . Juveniles found in shallow protected reefs, usually between soft coral, in 0.2-3 m depth .

Scientific Name
Acanthurus bariene
Authority
Lesson, 1831
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
50 cm
Depth Range
6–50 m
Latitude
24°S – 30°N
Trophic Level
2
Resilience
Medium
Vulnerability
36.00/100
Water Temp
23–29 °C
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 26 - 28; Anal spines: 3; Anal soft rays: 25 - 26. Body brown; a round black spot at upper gill opening; dark blue line just below the bases of dorsal and anal fins. Dorsal fin with soft part having longer base than spinous part. Minute scales. Gill rakers in anterior row 19-23, posterior 22-24. A dark brown area surrounding the caudal spine. Large males develop highly convex foreheads that extend beyond the mouth . : short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Blackspot surgeonfish 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 6 - 50 m , usually 30 - ? m . Tropical; 23°C - 29°C ; 30°N - 24°S, 32°E - 179°E West Pacific: Mozambique (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2
Food Items

algal film on bare rocks (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.02291 × L2.96 (TL)
Max TL
50cm
Dorsal Spines
9
Dorsal Rays
27
Anal Spines
3
Anal Rays
26

🌡️ Water Parameters & Tolerance

Temperature Range
23–29°C
Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
36.00/100
Moderate vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
30°N – 24°S
Described By
Lesson, 1831

🍽️ Edibility & Flavour

"Blackspot 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 18.2 g
Omega-3 (total) 96 mg

🔬 Mercury Safety

Mercury data for Blackspot 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
✓ Sustainable Choice

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)

Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Bariene Surgeonfish · Black-spot surgeonfish · Eye-spot Surgeon · Eye-spot Surgeonfish · Eyespot Surgeonfish · Roundspot Surgeonfish · pencilled surgeonfish
🏳️Catalan Peix cirurgià tropical
🌍CES bodlok bahamský
🇩🇰Danish Øjeplettet kirurgfisk
🇩🇪German Rammkopf-Doktorfisch
🌍FIJ Balagi · Balagi nawa · Balagi titobu
🇫🇷French Chirurgien à ocelle
🇮🇹Italian Pesce chirurgo di Lesson
🇯🇵Japanese Kanranhagi · カンランハギ
🌍MSA Debam · Dengkis
🇵🇹Portuguese Cirurgião-rainha
🇪🇸Spanish Pez Cirujano de Punto Negro
🌍TGL Labahita
🌍THA ปลาขี้ตังเบ็ดแต้มดำ

🦠 Common Diseases

The following diseases are known to affect Blackspot surgeonfish.

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 3 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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