On 5/27/03, Captain Jim Brincefield collected a water sample from dark brown waters at Green day marker 16 on the West River. The Mahogany Tide organism Prorocentrum minimum was identified by Maryland DNR in the water sample at bloom concentrations of 64,660 cells/ml. Mahogany Tide has been identified from the Lower Patuxent River to the Bay Bridge region along the western shore and Bay Bridge south into the Choptank River on the Eastern Shore. Many reports from boaters and fisherman this spring have helped to fill in the distribution of Mahogany Tide identified through the Chesapeake Bay water quality monitoring program and plankton identification conducted by the Maryland DNR, the Academy of Natural Sciences Estuarine Research Center, and Maryland Department of the Environment.