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

19 results for Didymosphenia geminata (didymo)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1659598 MABerkshireEgremont2013 01100005 Housatonicunknown
1810950 NJWarrenDelaware River2013 02040105 Middle Delaware-Musconetcong 
1810949 NJWarrenDelaware River2013 02040105 Middle Delaware-Musconetcong 
1810951 NJWarrenDelaware River2013 02040105 Middle Delaware-Musconetcong 
1811433 NYColumbia[No locality description provided]2013 01100005 Housatonic 
1810955 PAFayette[No locality description provided]2013 05020006 Youghiogheny 
1333320 PALycomingRoute 44 North from Waterville, PA. Right on Route 414. Then about 2 miles on Route 414 to Browns Run access parking lot on left.2013 02050205 Pineestablished
1810954 PANorthamptonDelaware River2013 02040105 Middle Delaware-Musconetcong 
1811000 PANorthamptonDelaware River2013 02040105 Middle Delaware-Musconetcong 
1810947 PANorthamptonDelaware River2013 02040105 Middle Delaware-Musconetcong 
1810953 PANorthamptonDelaware River2013 02040105 Middle Delaware-Musconetcong 
1810946 PANorthamptonDelaware River2013 02040105 Middle Delaware-Musconetcong 
1810943 PAPikeDelaware River2013 02040104 Middle Delaware-Mongaup-Brodhead 
1811553 PAPotter[No locality description provided]2013 02050205 Pine 
1810887 PAPotter[No locality description provided]2013 02050205 Pine 
1810888 PAPotter[No locality description provided]2013 02050205 Pine 
1333430 PAPotterPine Creek2013 02050205 Pineestablished
1333282 PAPotterPine Creek, W of Galeton2013 02050205 Pineestablished
1333371 PAPotterWest Branch Pine Creek2013 02050205 Pineestablished

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 [2/21/2026].

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