Botanist Janet Marr taught GLC’s 2009 Aquatic Plant Workshop on Saturday, August 29th and Sunday, August 30th.
This workshop was designed for fisheries biologists, botanists, environmental consultants, biological technicians, aquatic biologists, extension agents, college students, volunteer lake monitors, and others interested in learning how to identify aquatic plants and invasive species in order to protect healthy ecosystems in inland lakes.
WORKSHOP ACTIVITIES: Workshop activities took place both inside the classroom and in the field at several Keweenaw lakes and channels/coves connected to Lake Superior. Submersed and floating-leaved aquatic plants* were identified with a focus on identification of pondweeds (Potamogeton and Stuckenia species) and rosette-formers including the Michigan endangered awlwort (Subularia aquatica). Techniques for collecting and herbarium specimen/label preparation were demonstrated. Differences between aquatic invasive species such as Eurasian water-milfoil (Myriophyllum spicatum) and curly-leaf pondweed (Potamogeton crispus) and their native relatives were discussed. Aquatic plant survey techniques useful in inland lake monitoring were discussed.
PHOTOS OF PAST CLASSES: See photos of past Aquatic Plant Workshops in 2007 and 2006.
GUIDE TO AQUATIC PLANTS
A Guide to Aquatic Plants of Gratiot Lake and other Keweenaw County Lakes and accompanying CD were given to each participant free of charge and the handbook was used during the workshop.
For information about Janet's Wetland Plant Workshop to be held August 21 - 22, 2010, click here.
Horned Bladderwort,
Utricularia cornuta
Bladderwort Image courtesy of USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913.
Illustrated flora of the Northern States and Canada. Vol. 3: 232.
Photos from 2009 Workshop 
