DISTRIBUTION OF FORAMINIFERA IN THE NISQUALLY DELTA AREA OF THE SOUTHERN PUGET SOUND
A set of 51 grab samples were collected near the Nisqually River delta by Robert Harmon (Shoreline Community College) in 1982. Oceanographic setting range from tidal channels within the Nisqually delta to open inlets. Depths range from 1 to >100 meters. Sediment composition is dominated by fine sand with coarser clastics in shallow near shore water. Close to the Nisqually River delta mud is comprises a significant portion of the sediment. Some samples contain significant amounts of plant material. Of the 52 samples 43 contain at least a limited Foraminiferal fauna. Of these samples 7 contained 1-116 specimens. The remaining samples contained sufficient foraminifera to conduct 300+ counts. The most common species are Elphidium excavatum, Buccella frigida, Elphidiella hannai, Eggerella advena, and Lagenammina arenulata.(check this) The Foraminifera distribution in these samples provides a baseline for mapping faunal changes in future sampling in this area of the Puget Sound.