European Frog Invasion in Michigan
Learn about the invasive European frog threatening Michigan's ecosystems. Discover its distribution, identification, early development, concerns posed, and actions you can take to prevent its spread.
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Presentation Transcript
Invasive European Invasive European Frog Frog- -bit bit Invasive aquatic plant Prohibited in Michigan Found in Ottawa and Oceana counties in 2019 Lower Grand River Pentwater Lake Updated: 4/10/2017
European frog European frog- -bit distribution in MI as of August 2019 distribution in MI as of August 2019 bit Occurrences 1996 Wayne County 2014 Seven counties 2016 Kent County 2018 Oakland County 2019 Ottawa & Oceana counties - Locations in the Lower Grand River and Pentwater Lake
Identification Identification Free-floating prefers slow moving waters Develops dense mats
Early development Identification Identification turion plantlet Flower 3 white petals Leaves 0.5 2.25 across Round to Heart-shape Leathery Stem Horizontal runners produce new plants
Identification Identification Leaves 0.5 2.25 across Round to heart-shape Leathery Plant Free-floating Rosette form Develops dense mats Updated: 4/10/2017
Identification Identification Native look-a-likes Duckweed Leaves 1/16 1/8 Free-floating White water lily Pointed leaf lobes Many-petalled white flower Spadderdock Heart-shaped leaf with round lobes Large leaves up to 16 Yellow flower
Concern Concern Forms thick mats that can: Get caught in boat motors. Affect fish and waterfowl movement. Decrease oxygen levels in water as plants decompose. Updated: 4/10/2017
What you can do What you can do CLEAN: Remove all vegetation and debris from boats, trailers and gear before leaving a launch site. DRAIN: Remove all plugs and drain water from bilges, ballast tanks and live wells. DRY: Allow boats, trailers and gear to dry thoroughly before using them in a different water body. Updated: 4/10/2017
Report Report If you see European frog-bit, take one or more photos, make note of the location, date and time of the observation, and report to: EGLE-WRD- ANC@michigan.gov, or call 517-284-5593 - or - use the Midwest Invasive Species Information Network http://www. misin.msu.edu/ Updated: 4/10/2017
Additional information Additional information www.Michigan.gov/Invasivespecies
