Again, ask your fishmonger for tips about selecting the best.
Although most major cities now have at least one "gourmet" market that sells high-end, hard to find edibles, Balducci's was the first New York City company to have a greengrocer, fishmonger, butcher and delicatessen all under the same roof.
A fishmonger is a trained specialist who knows the different types of fish, characteristics, how to prepare and what to look for when buying.
By establishing yourself as a loyal customer, the fishmonger will be more likely to steer you to the best deals, the freshest seafood, and information that he might not otherwise be willing to divulge.
So that if, for example, a fishmonger uses such a machine to ascertain the weight of a piece of fish which he places in the goods - pan, and thereby depresses it down upon its stop, and then places weights in the weights-pan till the goods-pan rises, the customer is charged for more than the real weight of the fish.