Depth
Scorpaena · Bony Fish

Red Scorpionfish

Scorpaena scrofa

5-500m
Depth Range
50cm
Max Size
Mediterranean
Distribution
5-500m
Depth Range
50cm
Max Size
Rocky reef
Habitat
Carnivore
Diet
Solitary
Social
LC
IUCN Status
Moderate
Sighting Likelihood
Kingdom Animalia
Phylum Chordata
Class Actinopterygii
Genus Scorpaena
Species scrofa

Bony Fish

Identification & Biology

  • IdentificationLarge, stocky scorpionfish with a massive, spiny head. Bright red to orange-red body with darker mottling. Numerous skin flaps and tentacles on the head. Highly venomous dorsal spines.
  • SizeUp to 50 cm total length, commonly 20 to 35 cm.
  • Social HabitSolitary and strictly sedentary. Sits motionless on rocky surfaces, relying entirely on camouflage.
  • HabitatRocky reefs, boulder fields, and mixed substrates. Often on open rock surfaces where its colouration blends with surrounding algae.
  • Depth5 to 500 m, most common between 10 and 100 m.
  • Feeds OnFish and crustaceans ambushed from its motionless position.
  • DistributionEastern Atlantic from the British Isles to Senegal, including the entire Mediterranean Sea.
  • DescriptionThe largest scorpionfish in the Mediterranean and the one with the most potent venom. A sting from its dorsal spines causes severe, burning pain that can last for hours. Despite this, it is a prized food fish (the essential ingredient in bouillabaisse). Its superb camouflage makes it nearly invisible on the reef, reinforcing the importance of good buoyancy.

Range

Habitat & Distribution

Found on rocky reefs, boulder fields and mixed substrates from shallow coastal waters to around 500 metres depth. In the Mediterranean, it is widespread on rocky bottoms where its camouflage renders it nearly invisible against the substrate.

Where Malta divers have spotted this species

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Sightings are logged by divers using our What Did You See? dive-log tool. View the full live sightings map.

Detail

Preferred Environment

Prefers rocky environments with ample crevices, overhangs and algae-covered surfaces that enhance its camouflage. Commonly found resting on ledges, in small caves, or wedged between rocks.

Encounter Tips

Best approached slowly and calmly. Avoid casting shadows directly over the animal. Neutral buoyancy and patience increase encounter success significantly.

Red Scorpionfish species card

Biology

Behaviour & Diet

Feeding Strategy

A sit-and-wait ambush predator that lies motionless on the seabed, striking with explosive speed when small fish or crustaceans venture within range. Feeds mainly at night.

Ambush Hunter

Reproduction

Produces a distinctive gelatinous egg mass -- a transparent, balloon-like structure that floats near the surface. Spawning occurs during summer and the egg rafts can sometimes be spotted by divers.

Gelatinous Egg Raft

Behaviour & Defence

Its primary defence is exceptional camouflage, blending seamlessly with rocky substrates. When threatened, it erects its venomous dorsal spines, which can cause painful stings to careless divers.

Venomous Spines

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Where to Encounter in Malta

Dive sites where Scorpaena scrofa may be encountered will be added as sighting data is collected.

IUCN Red List Least Concern

Conservation Status

This species is assessed as Least Concern on the IUCN Red List. Mediterranean populations face ongoing pressure from fishing activity, habitat degradation, and climate-driven changes.

Source: IUCN Red List
diveshack Mediterranean Marine Life guide