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Full-Text Articles in Physical Sciences and Mathematics

Judy Reservoir Monitoring Project 2013 Final Report, Robin A. Matthews, Joan Vandersypen Dec 2013

Judy Reservoir Monitoring Project 2013 Final Report, Robin A. Matthews, Joan Vandersypen

Judy Reservoir

The purpose of this study was to identify and count the phytoplankton and measure chlorophyll, total nitrogen, and total phosphorus levels in water samples collected from Judy Reservoir. Water quality and algal data have been collected on a weekly basis since October 2006; annual reports have been sent to the Skagit Public Utility District No. 1 in 2007, 2008, 2010 (January and December), 2011, and 2012. This project ended in 2013; the final chemistry sample was collected May 2, 2013 and the final algae sample was collected November 6, 2013.


Reed Lake 2013 Aquatic Plant Survey, Samantha Merrick, Robin A. Matthews, Joan Vandersypen Oct 2013

Reed Lake 2013 Aquatic Plant Survey, Samantha Merrick, Robin A. Matthews, Joan Vandersypen

Reed Lake

The main objective of this project was to collect and identify aquatic plants in Reed Lake, a small, shallow lake in Whatcom County. The project was undertaken with the assistance of volunteers from the Glenhaven Lakes community (Figure 1). Residents of the Glenhaven community have expressed concerns about the effects that aquatic plants are having on recreation in the lake. This report included maps showing the types of plants that were collected in the lake Figures 2–10 and estimated plant densities (Figures 11–13), with a short discussion of methods that might be useful for reducing aquatic plant densities in the …


Birch Bay Village Lakes 2013 Final Report, Robin A. Matthews, Joan Vandersypen Aug 2013

Birch Bay Village Lakes 2013 Final Report, Robin A. Matthews, Joan Vandersypen

Birch Bay/Village Lakes

The Institute for Watershed Studies was contracted by the Birch Bay Village Lakes Committee to continue water testing at two sites in Kwan Lake and two sites in Thunderbird Lake (Figure 1, page 4). The sampling effort began in August 2007, and samples have been collected approximately 2–4 times each year through August 2013. This report provides an update to earlier data reports submitted to the Birch Bay Village Lakes Committee.