prerequisite for using fossil diatoms to reconstruct relative sea level (RSL). We described
modern diatom distributions from seven transects covering unvegetated subtidal
environments to forested uplands from four tidal wetland sites (Smith Creek, Bone River,
Niawiakum River, and Naselle River) of Willapa Bay, Washington, USA. We compared our
diatom dataset (320 species from 104 samples) to a series of environmental variables …