Specimen Information

Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
(European frogbit)
Plants
Exotic

Specimen ID1691719
GroupPlants
GenusHydrocharis
Speciesmorsus-ranae
Common NameEuropean frogbit
StateMI
CountyOttawa
LocalityLower Grand River
Mapping AccuracyAccurate
HUC8 NameLower Grand
HUC8 Number04050006
HUC10 NameGrand River
HUC10 Number0405000607
HUC12 NameLloyd Bayou-Grand River
HUC12 Number040500060712
Map
+
Collection Month7
Collection Year2019
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
Statusestablished
CommentsFurther investigation by the Gun Lake Tribe, West MI CISMA, and WRD found EFB to be spread throughout approximatly 7 miles of the river from Grand Haven upstream. 2020- Additional monitoring was conducted by partners. EGLE staff assisted partners with physical removal of EFB in limited areas. 2021 - Response efforts were led by Gun Lake Tribe and West MI CISMA to contain EFB and prevent spread in critical ecological areas along with ensuring offsite spread. WRD staff assisted with technical advice, field surveillance, and some hand removal.
Record TypePersonal communication
Freshwater/MarineFreshwater


Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/28/2024].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.