This courses is taught at the Semester in Environmental Sciences (SES) Program at the Marine Biological Laboratory in Woods Hole, Massachusetts. The course covers aquatic ecosystems from the point of view of biogeochemistry and important ecological processes. In the field and laboratory students will start out in the first eight weeks of the core courses with an intensive study focused mainly on local ecosystems –ponds and estuaries within the Waquoit Bay watershed adjacent to Vineyard Sound, West Falmouth Harbor on Buzzards Bay, and grassland, forest and suburban sites in the towns of Mashpee and Falmouth, MA. This course may count as an upper-level natural science elective. Requires separate application process.