Echinogammarus ischnus
Echinogammarus ischnus
(scud)
Crustaceans-Amphipods
Exotic
Collection Info
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Species Profile
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11 results for Echinogammarus ischnus (scud)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
155949 ILLakeLake Michigan, Waukegan1999 04190000 Lake Michiganestablished
155950 INLaPorteLake Michigan, Michigan City1999 04040001 Little Calumet-Galienestablished
155946 INLaPorteLake Michigan, near Michigan City (Site V-1)1999 04190000 Lake Michiganestablished
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
155954 MIBenzieLake Michigan, at Frankfort1999 04190000 Lake Michiganestablished
155951 MIBerrienLake Michigan at St. Joseph1999 04190000 Lake Michiganestablished
155955 MICharlevoixLake Michigan, Charlevoix1999 04190000 Lake Michiganestablished
155953 MIMasonLake Michigan, at Ludington1999 04190000 Lake Michiganestablished
155952 MIMuskegonLake Michigan at Muskegon1999 04060102 Muskegonestablished
270517 ON Lake Ontario, at Hamilton Harbour, Ontario, Canada1999 04270103 Sixteen Mile Creek-Frontal Lake Ontarioestablished

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/22/2026].

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