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🌊 Marine Least Concern ⚠️ Venomous ⚡ Venomous 🌡️ Tropical

Tassled scorpionfish

Scorpaenopsis oxycephala Bleeker, 1849
Max Length
36 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
45.00/100
Typical Length
30 cm
Depth Zone
reef

📖 Overview

Inhabits clear-water outer reef slopes and channels from depths of 1 to at least 35 m, in areas with mixed rock and coral substrates. Venomous spines. Solitary on coral and rocky bottoms (Ref 90102).

Scientific Name
Scorpaenopsis oxycephala
Authority
Bleeker, 1849
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
36 cm
Latitude
36°S – 30°N
Trophic Level
3.9
Resilience
Low
Vulnerability
45.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 5. Highly variable in color. Adults 'bearded' with numerous tassels. Juveniles slender with tall dorsal fin . Third dorsal spine longest (2.05-2.5) in head; occipital pit absent or very shallow; snout very long (2.7-3.0 in head length); space between opercular spines naked; first dorsal spine short (1.85-2.5) in length of second spine; supraocular and postocular spines broadly joined in adults (only tip of supraocular spine showing) and flaring outward to form a shelf over posterior half of eye (Ref 42181).: short and / or deep.

🌀 Behaviour

Behavioural data for Tassled 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 ? - 400 m . Tropical; 30°N - 36°S, 24°E - 171°E West Pacific: Red Sea and Sodwana Bay, South Africa (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.9±0.63
🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.01445 × L3.12 (TL)
Max TL
36cm
Dorsal Spines
12
Dorsal Rays
9
Anal Spines
3
Anal Rays
5

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
45.00/100
Moderate vulnerability
Trophic Level
3.9
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
30°N – 36°S
Described By
Bleeker, 1849

⚠️ 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

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Scorpaena oxycephalus Bleeker 1849 Synonym
Scorpaeopsis oxycephalus Bleeker 1849 Synonym

🗺️ 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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