Abstract Title

Session S-03A: Changes in Salish Sea Water Quality

Presenter/Author Information

Robert TaylorFollow

Keywords

Marine Water Quality

Start Date

1-5-2014 5:00 PM

End Date

1-5-2014 6:30 PM

Description

Flora and fauna in the Puget Sound region have changed dramatically over the last hundred years due to logging, industrialization, and development. Pollen analysis is a valuable tool to learn about the historic landscape and can provide insight into historical climates of the region. This study looks at the pollen distribution in the sediments of Quartermaster Harbor, located between Vashon and Maury Islands, Puget Sound, Washington. Variation of historic pollen diversity was compared with documented anthropogenic changes over time. In the summer of 2010, a two-meter core was obtained using an open barrel Kasten gravity corer. Core samples taken every 2 to 4 centimeters were processed to concentrate the pollen. One hundred individual pollen grains were identified in each sample to determine the concentration and variability of pollen in the harbor over time. Pb210 analysis was used to date the core. Findings from this study will illustrate present and historic land-use changes in the basin.

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May 1st, 5:00 PM May 1st, 6:30 PM

Historic Pollen Distribution in Quartermaster Harbor, Washington

Room 6C

Flora and fauna in the Puget Sound region have changed dramatically over the last hundred years due to logging, industrialization, and development. Pollen analysis is a valuable tool to learn about the historic landscape and can provide insight into historical climates of the region. This study looks at the pollen distribution in the sediments of Quartermaster Harbor, located between Vashon and Maury Islands, Puget Sound, Washington. Variation of historic pollen diversity was compared with documented anthropogenic changes over time. In the summer of 2010, a two-meter core was obtained using an open barrel Kasten gravity corer. Core samples taken every 2 to 4 centimeters were processed to concentrate the pollen. One hundred individual pollen grains were identified in each sample to determine the concentration and variability of pollen in the harbor over time. Pb210 analysis was used to date the core. Findings from this study will illustrate present and historic land-use changes in the basin.