Bythotrephes longimanus
Bythotrephes longimanus
(spiny waterflea)
Crustaceans-Cladocerans
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947 results for Bythotrephes longimanus (spiny waterflea)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
154381   Lake Huron2001 04240002 Lake Huronestablished
1926966   Lake Huron, CAPE IPPERWASH WGS-84 - POST-OP DIFFERENTIALLY CORR.2002 04240002 Lake Huron 
1926967   Lake Huron, CAPE IPPERWASH WGS-84 - POST-OP DIFFERENTIALLY CORR.2002 04240002 Lake Huron 
1926968   Lake Huron, CAPE IPPERWASH WGS-84 - POST-OP DIFFERENTIALLY CORR.2002 04240002 Lake Huron 
1926969   Lake Huron, CAPE IPPERWASH WGS-84 - POST-OP DIFFERENTIALLY CORR.2002 04240002 Lake Huron 
1926965   Lake Huron, GODERICH-MORE PRECISE POSITION RECORDED WITH DGPS AUGUST 19952002 04240002 Lake Huron 
154383   Lake Michigan2001 04190000 Lake Michiganestablished
1926994   Lake Ontario, PICKERING - OFFSHORE2003 04280002 Lake Ontario 
1926995   Lake Ontario, PICKERING - OFFSHORE2003 04280002 Lake Ontario 
1926996   Lake Ontario, PICKERING - OFFSHORE2003 04280002 Lake Ontario 
1926997   Lake Ontario, PICKERING - OFFSHORE2003 04280002 Lake Ontario 
1926998   Lake Ontario, PICKERING - OFFSHORE2003 04280002 Lake Ontario 
154382   Lake Superior2001 04180000 Lake Superiorestablished
4262 IL Lake Michigan1986 04190000 Lake Michiganestablished
291198 ILCookCal-Sag Channel, at Worth Street boat ramp2010 07120003 Chicagounknown
291187 ILCookLake Calumet2010 04040001 Little Calumet-Galienunknown
291199 ILCookLake Calumet2011 04040001 Little Calumet-Galienunknown
250173 ILCookLake Michigan, off Evanston, EPA Station MI051994 04190000 Lake Michiganestablished
253018 ILCookLake Michigan, off Evanston, EPA Station MI051995 04190000 Lake Michiganestablished
291190 ILCookLittle Calumet River, at O'Brien Lock and Dam south of Lake Calumet (north of Calumet City)2010 07120003 Chicagounknown
291201 ILCookLittle Calumet River, at O'Brien Lock and Dam south of Lake Calumet (north of Calumet City)2011 07120003 Chicagounknown
276900 ILLakeLake Michigan1987 04190000 Lake Michiganunknown
276901 ILLakeLake Michigan1987 04190000 Lake Michiganunknown
276917 ILLakeLake Michigan1988 04190000 Lake Michiganunknown
4357 IN Lake Michigan1986 04190000 Lake Michiganestablished
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Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/9/2026].

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