Bythotrephes longimanus

Spiny waterflea

Collection Information for Bythotrephes longimanus

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
1736762NYOnondagaOtisco Lake Park202104140201Senecaunknown
1773750NYOnondaga[No locality description provided]202204140201Seneca 
4962NYNiagaraLake Ontario at Somerset, NY (610 m offshore)198504280002Lake Ontarioestablished
4963NYNiagaraLake Ontario at Somerset, NY (610 m offshore)198504280002Lake Ontarioestablished
1618030NYOswegoOneida Lake [NE of Syracuse]201904140202Oneidaunknown
160793NYErieLake Erie at Buffalo, NY, nearshore at the 11 to 12 m contour198504260000Lake Erieestablished
160782NYChautauquaLake Erie at Dunkirk, NY, nearshore at the 7 to 8 m contour198504260000Lake Erieestablished
252841NYChautauquaLake Erie, EPA Station ER09199904260000Lake Erieestablished
255021NYChautauquaLake Erie, EPA Station ER09200104260000Lake Erieestablished
255022NYChautauquaLake Erie, EPA Station ER09200204260000Lake Erieestablished
247591NYChautauquaLake Erie, EPA Station ER09199804260000Lake Erieestablished
250307NYMonroeLake Ontario, EPA Station ON55M200304280002Lake Ontarioestablished
253130NYMonroeLake Ontario, EPA Station ON55M200504280002Lake Ontarioestablished
255156NYMonroeLake Ontario, EPA Station ON55M200604280002Lake Ontarioestablished
276067NYNiagaraLake Ontario, Nearest Landmark: Somerset area, KM198504280002Lake Ontariounknown
276068NYMonroeLake Ontario, Northumberland County, Nearest Intersection: Hamlin Beach State Park.198704280002Lake Ontariounknown
276072NYMonroeLake Ontario, Northumberland County, Nearest Intersection: Braddock Bay area.198804280002Lake Ontariounknown
1632847NYOswegoOneida Lake201904140202Oneidaunknown
1773746NYOneidaOneida Lake201904140202Oneida 
1773747NYOswegoOneida Lake201904140202Oneida 
1773749NYOswegoOneida Lake201904140202Oneida 

Citation for this information:
U.S. Geological Survey, 2026, Bythotrephes longimanus: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 1/11/2026