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🌊 Marine Least Concern 🍽️ Edible 🐠 Aquarium 🌡️ Tropical

Pyramid butterflyfish

Hemitaurichthys polylepis Bleeker, 1857
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
0–60 m
Climate
Tropical
Resilience
High
Vulnerability
20.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Occur in large schools that may extend several meters above the edges of steep current-swept outer reef slopes. Common . Benthopelagic . Feed on plankton . Oviparous . Form pairs during breeding .

Scientific Name
Hemitaurichthys polylepis
Authority
Bleeker, 1857
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
18 cm
Depth Range
0–60 m
Latitude
25°S – 35°N
Trophic Level
3.1
Resilience
High
Vulnerability
20.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 23 - 26; Anal spines: 3; Anal soft rays: 19 - 21. : short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Pyramid butterflyfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

Form pairs during breeding .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 60 m . Tropical; 35°N - 25°S, 92°E - 124°W north to southern Japan, south to Rowley Shoals and New Caledonia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.1±0.1
🐠 Schooling
Food Items

plankton (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.02239 × L3.01 (TL)
Max TL
18cm
Dorsal Spines
12
Dorsal Rays
25
Anal Spines
3
Anal Rays
20

🌡️ 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
20.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
35°N – 25°S
Described By
Bleeker, 1857

🍽️ Edibility & Flavour

"Pyramid butterflyfish 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 18.4 g
Omega-3 (total) 119 mg

🔬 Mercury Safety

Mercury data for Pyramid butterflyfish 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
- - -

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 7 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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