Runtime: 00:39 (hours:minutes)
Produced in 1985; released on DVD in 2007. 39 minutes. Still informative and relevant today, this environmental mystery story investigates what was killing the seagrasses here in the Chesapeake Bay, the country's largest and richest estuary. A dozen species were disappearing, and when scientists began to search they came up with some unexpected answers that changed our understanding of the Chesapeake.