Oysters are a narrative food: in each shuck and slurp, an eater tastes the place where the animal was raised. But that's just the beginning. Andr Joseph Gallant uses the bivalve as a jumping off point to tell the story of a changing southeastern coast, the bounty within its waters, and what the future may hold for the area and its fishers. With A High Low Tide he places Georgia, as well as the South, in the national conversation about aquaculture,...