At the ShopRite store in Staten Island, N.Y., chums -- called silvberbrite salmon filets -- are on sale for $4.99 (€3.58) a pound, mahi mahi fillets are $6.99 (€5.02) a pound, under-15 wild U.S. shrimp are 11.99 (€8.61) a pound, and extra-large scallops are $12.99 (€9.33) a pound.

At Vons in Los Angeles, 31-40-count raw shrimp are $7.98 (€5.73) for a two-pound bag, SeaPak's "Seafood Selections" line, various sizes, is $5.99 (€4.30), tilapia fillets are $3.99 (€2.86) a pound, and yellowtail tuna steaks are $6.99