Marine species guide
Dusky grouper
Dusky groupers (meros) are charismatic Mediterranean predators and a highlight of Spanish, French and Maltese diving. Learn marks that separate them from other serranids and why many sites protect large individuals.
Identification features
Heavy body, large mouth and rounded tail. Dusky groupers show mottled brown patterning that can darken or pale with mood. Juveniles may have more distinct spots.
- Robust serranid body
- Large mouth, mottled brown tones
- Rocky reefs and wrecks
- Often site-faithful adults
Habitat and behaviour
They hold territories on rocky reefs and wrecks, often 10–40 m. Large adults are curious but should not be fed.
Where and when to see them
Related tropical groupers share the silhouette; use location and pattern guides for species-level ID.
Dive tips
Related tropical groupers share the silhouette; use location and pattern guides for species-level ID.
Frequently asked questions
How do I confirm the ID?
Combine visible traits with location and depth, then compare photos in Scuba Steve’s fish identification app and regional guides.
Should I touch it?
No. Maintain neutral buoyancy and a respectful distance for safety and animal welfare.
Where can I learn more?
See related dive-site guides on Scuba Steve and ask local operators about recent conditions.