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

🌊 Marine Least Concern ⚠️ Venomous ⚡ Venomous 🌡️ Tropical

Hairy scorpionfish

Scorpaenodes hirsutus Smith, 1957
Max Length
5.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
8–54 m
Climate
Tropical
Resilience
High
Vulnerability
17.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Inhabits lagoon and seaward reefs to a depth of at least 40 m . Benthic in coral reefs . Venomous spines .

Scientific Name
Scorpaenodes hirsutus
Authority
Smith, 1957
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
5.6 cm
Depth Range
8–54 m
Latitude
25°S – 35°N
Trophic Level
3.4
Resilience
High
Vulnerability
17.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 13; Dorsal soft rays (total): 8 - 9; Anal spines: 3; Anal soft rays: 5 - 6. Covered with short hairlike filaments . With vertical scale rows about 30; usually with 4 spines on suborbital ridge, first on lateral face of lachrymal bone; usually 1 additional spine below suborbital ridge at level between second and third spines; presence of interorbital spines; absence of small spines at midline between tympanic spines .: fusiform / normal.

🌀 Behaviour

Behavioural data for Hairy scorpionfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; reef-associated; depth range 8 - 54 m . Tropical; 35°N - 25°S East Africa to the Marquesan and Pitcairn islands, north to Ryukyu and Hawaiian islands, south to Australia (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01288 × L3.02 (TL)
Max TL
5.6cm
Dorsal Spines
13
Dorsal Rays
9
Anal Spines
3
Anal Rays
6

🌡️ 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
17.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
35°N – 25°S
Described By
Smith, 1957

⚠️ Venom Profile

Medical Warning: This species is venomous. Seek immediate medical attention if envenomated. Contact emergency services and follow first aid guidance below.
Venom Type
proteinaceous neurotoxin
Delivery
dorsal, anal, and pelvic fin spines
Potency
Severe
Mortality Risk
Low
Symptom Onset
5min
Duration
24.0hrs
Antivenom
✗ Not Available
Named Toxins
high-molecular-weight protein (Stonustoxin analogue) acetylcholine
Symptoms
  • immediate intense pain
  • swelling
  • erythema
  • occasional nausea and weakness
Affected Body Systems
peripheral nervous system cardiovascular
First Aid
Immerse affected area in hot water (45 C, tolerable) for 30-90 minutes to denature toxin. Do not apply ice.
Medical Treatment

Analgesia; wound care; tetanus prophylaxis; severe cases may require monitoring for systemic effects.

References: Compiled from Bhide (2018), Halstead et al. (1988) and family-specific envenomation literature

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 10 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 Hairy scorpionfish ↗
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.