Port officials looking to expand local aquaculture heard some good news this month. A two-year project by federal scientists that mapped the potential for aquaculture in the U.S. found ample promise in San Diego. And zeroing in on those spots is getting easier. “We think this is the most exhaustive analysis ever done at the estuary scale in the U.S.,” said James Morris, a marine ecologist with the National Oceanic and Atmospheric Administration who presented the results to the Port.