Lower Columbia Estuary Partnership

Lower Columbia River Reed Canarygrass Macroinvertebrate and Macrodetritus Production Study

Reed Canarygrass (Phalaris arundinacea) is a dominant invasive plant species found in emergent wetland habitats throughout the lower Columbia River. Previous observations in the lower river indicate that the presence of P. arundinacea may decrease plant species diversity and affect aquatic food web function; however, the extent of these ecological effects is unknown. Juvenile salmon utilize emergent wetland habitats for foraging and refuge during outmigration.