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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Horseface unicornfish

Naso fageni Morrow, 1954
Max Length
80 cm
Max Weight
-
Lifespan
-
Trophic Level
2.2
Depth
3–35 m
Climate
Tropical
Resilience
Low
Vulnerability
56.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Horseface unicornfish (Naso fageni), first described by Morrow, 1954 is a large fish in the family Acanthuridae (order Acanthuriformes). Adults typically reach 80.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 3 to 35 metres. It occurs in Tropical waters. It feeds primarily on plankton, plant material, and detritus. The species largely solitary in behaviour. On the IUCN Red List, it is classified as Least Concern.The species is important as a food fish. As a member of the Acanthuridae, it shares life-history and morphological traits with its relatives in the group.

Scientific Name
Naso fageni
Authority
Morrow, 1954
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
80 cm
Depth Range
3–35 m
Trophic Level
2.2
Resilience
Low
Vulnerability
56.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 5; Dorsal soft rays (total): 24 - 26; Anal spines: 2; Anal soft rays: 23 - 25. Olivaceous grey in color; adults with small dusky spots and large specimens with a short protuberance above upper lip . Body ovate and compressed . : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Horseface unicornfish 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 3 - 35 m . Tropical West Pacific: Kenya south to Bazaruto Islands (Mozambique), Aldabra and Seychelles, and east to the Philippines (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2.2±0.1
🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.02089 × L2.95 (TL)
Max TL
80cm
Dorsal Spines
5
Dorsal Rays
25
Anal Spines
2
Anal Rays
24

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
56.00/100
High vulnerability
Trophic Level
2.2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Morrow, 1954

🍽️ Edibility & Flavour

"Naso Fageni 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 18.7 g
Omega-3 (total) 107 mg

🔬 Mercury Safety

Mercury data for Horseface unicornfish 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

🔬 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
- - -

🦠 Common Diseases

The following diseases are known to affect Horseface unicornfish.

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