US Army Corps of Engineers
Portland District Website Website

Mud / sand flats

Picture of mud / sand flatsMud / sand flats are complexes dominated by benthic diatoms and other small algae.  The photo at right shows flats and an emergent marsh near Grays River in the Columbia River estuary (WADOE 1997).


Controlling factors that affect mud / sand flats:

Ecosystem processes that are affected by mud / sand flats:

Contact information

Ronald Thom, Ph.D

Marine Research Operations, PNNL
1529 W. Sequim Bay Rd.
Sequim, WA 98382