What is a "sea bream"
LMAO! Bream in England means the course fish.
Any bream in the sea is a 'Sea Bream'. They are known as Black Sea Bream, Couch's Sea Bream, Red Sea Bream etc. I think the most common is the Black so it probably is more commonly called "Sea Bream".
Strange that We also say 'Sea Bass' when there are no freshwater varieties in the UK... or are there?