New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Masked bannerfish

Heniochus monoceros Cuvier, 1831
Max Length
24 cm
Max Weight
Lifespan
Trophic Level
3.5
Depth
2–30 m
Climate
Tropical
Resilience
High
Vulnerability
24.00/100
Typical Length
Depth Zone
reef

📖 Overview

Occur in lagoon and seaward reefs with rich coral growth. Juveniles solitary; adults are often paired and occasionally found hovering side by side under tabular corals . Feed on bottom living animals , e.g. invertebrates associated with algal zones . Oviparous . Form pairs during breeding . Minimum depth reported taken from Ref. 30874.

Scientific Name
Heniochus monoceros
Authority
Cuvier, 1831
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
24 cm
Depth Range
2–30 m
Latitude
32°S – 32°N
Trophic Level
3.5
Resilience
High
Vulnerability
24.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 24 - 27; Anal spines: 3; Anal soft rays: 17 - 19. : short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Masked bannerfish is currently being reviewed.

🦐 Diet

Diet information for Masked bannerfish is currently being compiled.

🥚 Reproduction

Form pairs during breeding .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 2 - 30 m . Tropical; 32°N - 32°S East Africa to the Tuamoto Islands, north to southern Japan, south to New South Wales and Tonga.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.5±0.37
🧍 Solitary
Food Items

bottom living animals (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.02042 × L3.05 (TL)
Max TL
24cm
Dorsal Spines
12
Dorsal Rays
26
Anal Spines
3
Anal Rays
18

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
24.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
32°N – 32°S
Described By
Cuvier, 1831

🍽️ Edibility & Flavour

"Masked bannerfish 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) 114 mg

🔬 Mercury Safety

Mercury data for Masked bannerfish 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
Heniochus monoceras Cuvier 1831 Synonym
Taurichthys monoceros Cuvier 1831 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
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Masked bannerfish ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.