Didymosphenia geminata
Didymosphenia geminata
(didymo)
Algae
Cryptogenic
Collection Info
Point Map
Species Profile
Animated Map
Impacts

14 results for Didymosphenia geminata (didymo)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
877918 MIChippewaSt. Marys River, Sault Ste. Marie, on USA/Canada border2015 04200002 St. Marysestablished
1820982 PAClearfield[No locality description provided]2015 02050201 Upper West Branch Susquehanna 
1820984 PAFayette[No locality description provided]2015 05020006 Youghiogheny 
1820991 PAFayette[No locality description provided]2015 05020006 Youghiogheny 
1820985 PALycoming[No locality description provided]2015 02050205 Pine 
1820986 PAPotter[No locality description provided]2015 02050205 Pine 
1820988 PAPotter[No locality description provided]2015 02050205 Pine 
1820981 PAPotter[No locality description provided]2015 02050205 Pine 
1820990 PAPotter[No locality description provided]2015 02050205 Pine 
1820987 PAPotter[No locality description provided]2015 02050205 Pine 
1820983 PATioga[No locality description provided]2015 02050205 Pine 
1820989 PATioga[No locality description provided]2015 02050205 Pine 
1464328 SDPenningtonCastle Creek (below Deerfield)2015 10120110 Rapidestablished
1464298 SDPenningtonRapid Creek2015 10120110 Rapidestablished

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 [2/23/2026].

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