Fresh local oysters will be served paired with wine during a tour of the shellfish hatcheries at the Suffolk County Marine Environmental Learning Center in Southold on Friday, Aug. 18, from 6 to 8 p.m. The Slow Food East End chapter has a potluck dinner planned for next Thursday at Myron and Susan Levine’s residence in Sag Harbor. Reservations are required and can be made at slowfoodeastend.org