Echinogammarus ischnus

Scud

Collection Information for Echinogammarus ischnus

Results limited to All Great Lakes Drainages.
To see the collection list for the entire United States, click here.
 Results also available in (click to export table to spreadsheet)

(click table headers to sort)
Specimen IDStateCountyLocalityYearHUC NumberDrainage NameStatus
153814MIWayneDetroit River199504260000Lake Erieestablished
5010MISt. ClairSt. Clair River, in North Channel [near Algonac]199804090002Lake St. Clairestablished
155945MIBerrienLake Michigan, off St. Joseph (Site H-22)199804190000Lake Michiganestablished
155947MI Lake Michigan (Site H-30)199904190000Lake Michiganestablished
155948MI Lake Michigan, off the coast of Muskegon (Site X-2)199904190000Lake Michiganestablished
155953MIMasonLake Michigan, at Ludington199904190000Lake Michiganestablished
155954MIBenzieLake Michigan, at Frankfort199904190000Lake Michiganestablished
155955MICharlevoixLake Michigan, Charlevoix199904190000Lake Michiganestablished
155952MIMuskegonLake Michigan at Muskegon199904060102Muskegonestablished
155951MIBerrienLake Michigan at St. Joseph199904190000Lake Michiganestablished
253599MIMonroeLake Erie at Monroe, Michigan.200704260000Lake Eriecollected
253596MIAlpenaLake Huron, Thunder Bay, Alpena, Michigan200704240002Lake Huroncollected
253592MIDeltaLake Michigan, Green Bay, Escanaba, MI200704190000Lake Michigancollected
253593MIOttawaLake Michigan, offshore from Grand Haven, MI200704190000Lake Michigancollected
253595MIPresque IsleLake Huron, Hammond Bay200704240002Lake Huroncollected
253594MIBayLake Michigan in Saginaw Bay offshore of Bay City200704240002Lake Huroncollected
253603MIHuronLake Huron near Port Austin, MI200704240002Lake Huroncollected
785815MIHuronWildfowl Bay, midpoint between Bay Port and McKinley Township201304240002Lake Huronestablished
785831MIMackinacPearson Creek at Cedarville Bay201204200001Carp-Pineestablished
785746MITuscolaLake Huron, at Saginaw Bay NE of Bay Park, SW of Kirk Rd201104240002Lake Huronestablished
785749MITuscolaLake Huron, at Saginaw Bay NE of Bay Park, SW of Kirk Rd201304240002Lake Huronestablished
785760MITuscolaQuanicassee River at mouth201204080103Pigeon-Wiscogginestablished
785807MIMackinacPearson Creek at Cedarville Bay201104200001Carp-Pineestablished
785783MIManisteeBear Creek adjacent to Blacker Airport201204060103Manisteeestablished
785761MIMonroeLake Erie, North Maumee Bay at S end of North Cape201304260000Lake Erieestablished
785808MIMonroeLake Erie, at Brest Bay, just W of Stony Point201204100001Ottawa-Stonyestablished
785768MIBayLake Huron shoreline between Kawkawlin River and Saginaw River201104240002Lake Huronestablished
785832MIMonroeLittle Lake Creek at North Maumee Bay201204100001Ottawa-Stonyestablished
785771MITuscolaLake Huron, at Saginaw Bay NE of Bay Park, SW of Kirk Rd201204240002Lake Huronestablished
1555725MIMonroe[No locality description provided]201304260000Lake Erieestablished
1560956MIMonroe[No locality description provided]201404100001Ottawa-Stonyestablished
1563600MIArenac[No locality description provided]201404080101Au Gres-Rifleestablished
1563439MIArenac[No locality description provided]201404080102Kawkawlin-Pineestablished
1563281MIBay[No locality description provided]201404240002Lake Huronestablished
1563437MIHuron[No locality description provided]201404240002Lake Huronestablished
1564670MICheboygan[No locality description provided]201404070003Lone Lake-Ocqueocestablished
1568050MIBay[No locality description provided]201604240002Lake Huronestablished
1598333MIMonroe[No locality description provided]201204100001Ottawa-Stonyestablished
1602539MITuscola[No locality description provided]201504240002Lake Huronestablished
1602536MIBay[No locality description provided]201504080206Saginawestablished
1602541MIBay[No locality description provided]201504240002Lake Huronestablished
1602547MIArenac[No locality description provided]201504080102Kawkawlin-Pineestablished
1605552MIMackinac[No locality description provided]201504240002Lake Huronestablished
1604735MIHuron[No locality description provided]201504240002Lake Huronestablished
1649666MIOaklandMiddle Straits Lake202004100013Huronunknown
1882536MIWayneDetroit River202304090004Detroitestablished
1882543MIBaySaginaw River202304080206Saginawestablished
1882546MIBaySaginaw River202304080206Saginawestablished
1882540MIBaySaginaw River202304240002Lake Huronestablished
1882541MIBaySaginaw River202304240002Lake Huronestablished
1882542MIBaySaginaw River202304240002Lake Huronestablished
1882544MIBaySaginaw River202304080206Saginawestablished
1882545MIBaySaginaw River202304080206Saginawestablished
1882547MIBaySaginaw River202304080206Saginawestablished
1882548MIBaySaginaw River202304080206Saginawestablished
1882549MIBaySaginaw River202304240002Lake Huronestablished
1882527MIWayneDetroit River202304090004Detroitestablished
1882528MIWayneDetroit River202304090004Detroitestablished
1882529MIWayneDetroit River202304090004Detroitestablished
1882530MIWayneDetroit River202304090004Detroitestablished
1882531MIWayneDetroit River202304090004Detroitestablished
1882532MIWayneDetroit River202304090004Detroitestablished
1882533MIWayneDetroit River202304090004Detroitestablished
1882534MIWayneDetroit River202304090004Detroitestablished
1882535MIWayneDetroit River202304090004Detroitestablished

Citation for this information:
U.S. Geological Survey, 2026, Echinogammarus ischnus: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 2/21/2026