Old Rochester Regional junior Connie Friedman of Marion gets a look through a refractometer that measures salinity in water. The salt-measuring exercise was part of the many experiences that 31 Marine Biology students from ORR’s junior and sophomore classes got during Monday morning’s field trip with the Mattapoisett Land Trust to visit Nantucket’s Shellfish Hatchery and the UMass Boston Field Station. Photo courtesy of Lynn Connor
