Detritus is a frequent, poorly defined, component of bivalve growth and carrying capacity models. The purpose of this study was to determine the proportional contributions of detrital material derived from primary producers (phytoplankton, macroalgae, Spartina alterniflora , and terrestrial leaf litter) to particulate organic matter (POM) and blue mussel’s ( Mytilus edulis ) diet within a temperate bay (Saco Bay, ME, United St...