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Article
Oregon Lake Watch, 2015 Annual Report
Center for Lakes and Reservoirs Publications and Presentations
  • Samuel Cimino, Portland State University
  • Rich Miller, Portland State University
  • Angela L. Strecker, Portland State University
Document Type
Report
Publication Date
1-1-2015
Subjects
  • Invasive aquatic organisms -- Oregon -- Control,
  • Aquatic ecology -- Oregon,
  • Environmental monitoring -- Oregon
Abstract
The Oregon Lake Watch (OLW) volunteer monitoring program completed its third year of operation during 2015 with a focus on early detection of aquatic invasive species (AIS) and water quality status and trend assessments for the better management of Oregon’s lakes and reservoirs. AIS surveys emphasized the detection of Watch List aquatic plant and species that can have a negative impacts on the beneficial uses of our waterbodies. Water transparency and temperature measurements were used to track the condition of volunteers' lakes. Thirty-one Oregon lakes have been surveyed during the OLW’s three years, 16 of which were surveyed during 2015. Seven lakes have been surveyed all three years and seven more have been surveyed two of the three years. Four Watch List plant and one animal species were found during 2015. Eurasian watermilfoil (Myriophyllum spicatum) was found in three lakes, Brazilian elodea (Egeria densa) and curly leaf pondweed (Potamogeton crispus) were each found in two lakes, and yellow flag iris (Iris pseudacorus) was found in one lake. Asian clams (Corbicula fluminea) were found in one lake. A diverse array of native plants were found along with native signal crayfish (Pacifasticus leniusculus). Water quality ranged from eutrophic to oligotrophic conditions based on water transparency and water temperatures ranged as high as 28°C (82°F). More years of data collection are necessary to track water quality trends.
Persistent Identifier
http://archives.pdx.edu/ds/psu/16946
Citation Information
Samuel Cimino, Rich Miller and Angela L. Strecker. "Oregon Lake Watch, 2015 Annual Report" (2015)
Available at: http://works.bepress.com/angela_strecker/32/