Echinogammarus ischnus
Echinogammarus ischnus
(scud)
Crustaceans-Amphipods
Exotic
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65 results for Echinogammarus ischnus (scud)
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Page:123
Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
155947 MI Lake Michigan (Site H-30)1999 04190000 Lake Michiganestablished
155948 MI Lake Michigan, off the coast of Muskegon (Site X-2)1999 04190000 Lake Michiganestablished
253596 MIAlpenaLake Huron, Thunder Bay, Alpena, Michigan2007 04240002 Lake Huroncollected
1563600 MIArenac[No locality description provided]2014 04080101 Au Gres-Rifleestablished
1563439 MIArenac[No locality description provided]2014 04080102 Kawkawlin-Pineestablished
1602547 MIArenac[No locality description provided]2015 04080102 Kawkawlin-Pineestablished
1563281 MIBay[No locality description provided]2014 04240002 Lake Huronestablished
1602536 MIBay[No locality description provided]2015 04080206 Saginawestablished
1602541 MIBay[No locality description provided]2015 04240002 Lake Huronestablished
1568050 MIBay[No locality description provided]2016 04240002 Lake Huronestablished
785768 MIBayLake Huron shoreline between Kawkawlin River and Saginaw River2011 04240002 Lake Huronestablished
253594 MIBayLake Michigan in Saginaw Bay offshore of Bay City2007 04240002 Lake Huroncollected
1882544 MIBaySaginaw River2023 04080206 Saginawestablished
1882545 MIBaySaginaw River2023 04080206 Saginawestablished
1882547 MIBaySaginaw River2023 04080206 Saginawestablished
1882548 MIBaySaginaw River2023 04080206 Saginawestablished
1882543 MIBaySaginaw River2023 04080206 Saginawestablished
1882546 MIBaySaginaw River2023 04080206 Saginawestablished
1882540 MIBaySaginaw River2023 04240002 Lake Huronestablished
1882541 MIBaySaginaw River2023 04240002 Lake Huronestablished
1882542 MIBaySaginaw River2023 04240002 Lake Huronestablished
1882549 MIBaySaginaw River2023 04240002 Lake Huronestablished
155954 MIBenzieLake Michigan, at Frankfort1999 04190000 Lake Michiganestablished
155951 MIBerrienLake Michigan at St. Joseph1999 04190000 Lake Michiganestablished
155945 MIBerrienLake Michigan, off St. Joseph (Site H-22)1998 04190000 Lake Michiganestablished
Page:123

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.

Disclaimer:

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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/19/2025].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

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