Bythotrephes longimanus
Bythotrephes longimanus
(spiny waterflea)
Crustaceans-Cladocerans
Exotic
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Impacts

16 results for Bythotrephes longimanus (spiny waterflea)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1560373 MIGogebic[No locality description provided]2013 04020102 Ontonagonestablished
630839 MIOntonagonLake Gogebic2013 04020102 Ontonagonestablished
630840 MIOntonagonLake Gogebic2013 04020102 Ontonagonestablished
630841 MIOntonagonLake Gogebic2013 04020102 Ontonagonestablished
630842 MIOntonagonLake Gogebic2013 04020102 Ontonagonestablished
630843 MIOntonagonLake Gogebic2013 04020102 Ontonagonestablished
1560627 MNLake[No locality description provided]2013 09030001 Rainy Headwatersestablished
1560619 MNSt. Louis[No locality description provided]2013 04010201 St. Louisestablished
614557 MNSt. LouisShagawa Lake, in Ely2013 09030001 Rainy Headwatersestablished
1702665 PAWarrenAllegheny River, Starbrick, PA2013 05010001 Upper Allegheny 
1702663 PAWarrenAllegheny River, Warren, PA2013 05010001 Upper Allegheny 
1702664 PAWarrenBetts Park on the Allegheny River, PA2013 05010001 Upper Allegheny 
1702666 PAWarrenBuckaloons Recreation Area on the Allegheny River, PA2013 05010001 Upper Allegheny 
1702662 PAWarrenKinzua Dam on Allegheny River, PA2013 05010001 Upper Allegheny 
615372 WIVilasStar Lake2013 07070001 Upper Wisconsinestablished
1423181 WIVilasStar Lake2013 07070001 Upper Wisconsinestablished

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 [1/20/2026].

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