Eelgrass is growing again in areas where oyster racks once lined Drakes Estero. In presentations this month, Dr. Ben Becker, a science advisor and research coordinator for the National Park Service, described the first five years of what he called a passive eelgrass restoration as both variable and largely successful. 

“Some of the restored areas have as much eelgrass as the control areas,” Dr. Becker told the Light. But in highly disturbed areas where…