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Aquatic Invasive Species Surveys of Eastern Oregon Waterbodies in 2013 and 2014
Center for Lakes and Reservoirs Publications and Presentations
  • Rich Miller, Portland State University
  • Mark D. Sytsma, Portland State University
Document Type
Report
Publication Date
2-1-2014
Subjects
  • Invasive species,
  • Aquatic ecology -- Research -- United States,
  • Environmental monitoring -- Pacific Northwest
Abstract
Early detection aquatic invasive species (AIS) surveys were conducted at 33 Eastern Oregon waterbodies during the summers of 2013 and 2014. Submerged aquatic plants, gastropods, bivalves, and crayfish were collected using a thatch rake, benthic dredge, plankton net, and modified minnow traps. Shoreline aquatic noxious weeds were noted when present and water quality characteristics were measured. Two AIS snail species, one AIS crayfish species, and five AIS plant species were detected during the surveys. Big-ear radix snails (Radix auricularia) were newly detected at 14 waterbodies distributed across the survey area. Chinese mystery snails (Cipangopaludina chinensis) were detected in one waterbody. Rusty crayfish (Orconectes rusticus) were newly found at high densities at one lake. AIS plant species included Eurasian watermilfoil (Myriophyllum spicatum), a hybrid of Eurasian with the native northern watermilfoil (M. spicatum x sibiricum), curlyleaf pondweed (Potamogeton crispus), fragrant waterlily (Nymphaea odorata) and reed canarygrass (Phalaris arundinacea). Fifty-six native aquatic plant species were identified in the waterbodies. Water quality conditions ranged from clear, low ionic strength water to highly turbid, productive, high ionic strength water.
Description

Final report prepared for Bureau of Land Management and Oregon Department of Agriculture for Agreement Numbers ODA-3364-IG and ODA-3485-IG

Persistent Identifier
http://archives.pdx.edu/ds/psu/16279
Citation Information
Rich Miller and Mark D. Sytsma. "Aquatic Invasive Species Surveys of Eastern Oregon Waterbodies in 2013 and 2014" (2014)
Available at: http://works.bepress.com/mark_sytsma/59/