Bythotrephes longimanus
Bythotrephes longimanus
(spiny waterflea)
Crustaceans-Cladocerans
Exotic
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11 results for Bythotrephes longimanus (spiny waterflea)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
4961 MNCarltonSt. Louis River downstream of the Cloquet River1997 04010201 St. Louisestablished
1560619 MNSt. Louis[No locality description provided]2013 04010201 St. Louisestablished
1565573 MNSt. Louis[No locality description provided]2014 04010201 St. Louisestablished
1565582 MNSt. Louis[No locality description provided]2014 04010201 St. Louisestablished
1565596 MNSt. Louis[No locality description provided]2014 04010201 St. Louisestablished
1565586 MNSt. Louis[No locality description provided]2014 04010201 St. Louisestablished
4958 MNSt. LouisFish Lake [=Fishing Lakes?]1997 04010201 St. Louisunknown
4959 MNSt. LouisIsland Lake1997 04010201 St. Louisestablished
1685513 MNSt. LouisSt. Louis River1995 04010201 St. Louisunknown
1709497 MNSt. LouisSt. Louis River2018 04010201 St. Louis 
262918 MNSt. LouisSt. Louis River, downstream of the Cloquet River2009 04010201 St. Louisestablished

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 [2/3/2026].

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