I have no idea what a bream is.. but the usda 2009 gives directions for fatty fish other than tuna, tuna, smoked fish, oysters, clams and crab - blue crabs are not recommended because of quality not safety. I don't know if there's more recent info that refutes this http://nchfp.uga.edu/publications/usda/GUIDE%205%20Home%20Can.pdf