We're doing something a little different this week, heading down to record on location at Wulf's Fish in the Seaport. Richard Taylor and Desiree Antczak (Wulf's) and Bill Mantia (John Mantia & Sons) share their insights on Boston's seafood industry — how it has evolved, what it means to the city, and how it endures next to some of the priciest real estate in the country.