This species is benthic on sea beds consisting of sand and mud, preferring coarse sand.
on the continental shelf and slope, at depths between 80–400 m. It feeds on a wide range of small benthic organisms, largely crustaceans such as amphipods and shrimp, also polychaetes and bivalves.
The spawning season runs from early March to early summer in the English Channel but  from late winter and spring to early autumn off Ireland.
They can live for up to 14 year.
The young thickback sole develop in open-sea nurseriesand settle into a benthic mode at a relatively young age compared to common sole and this may be why they are rarely recorded in coastal waters.
This species is benthic on sea beds consisting of sand and mud, preferring coarse sand. on the continental shelf and slope, at depths between 80–400 m. It feeds on a wide range of small benthic organisms, largely crustaceans such as amphipods and shrimp, also polychaetes and bivalves. The spawning season runs from early March to early summer in the English Channel but  from late winter and spring to early autumn off Ireland. They can live for up to 14 year. The young thickback sole develop in open-sea nurseriesand settle into a benthic mode at a relatively young age compared to common sole and this may be why they are rarely recorded in coastal waters.
Thickback sole