Please join the Koshland Science Museum on Wednesday, July 18, 2007, 5:30pm-7:30pm, for an expedition with the Chesapeake Bay Foundation on the Anacostia and Potomac Rivers. Oyster specialists will show how these rivers have changed over recent years and discuss the impact of current and proposed urban development. The ship will depart from and arrive at 600 Water Street, Washington, DC.

This is the second of a two-part series looking at nonnative oysters. The first part of the series, held the evening of Wednesday, July 11, at the Koshland Science Museum, will examine the impact of nonnative oysters in the Chesapeake Bay. Participation in both events is encouraged, but not required, so feel free to register for one or both events.

For directions to the Chesapeake Bay Foundation Potomac River workboat, located at the Gangplank Marina at 600 Water Street in Washington, DC, please visit http://koshland-science.org/events/upcomingevent.jsp?id=272. The Potomac River Staff will meet you in front of the restaurant in the marina. The Chesapeake Bay Foundation workboat is the Susquehanna.

Space on the Chesapeake Bay Foundation workboat is limited; advance ticket purchase for this expedition is a must. Contact the Koshland Science Museum at 202-334-1201 or ksm@nas.edu to purchase tickets (cost is $10).