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
1926958ONT St. Clair River, UPPER END OF STAG ISLAND - CANADIAN SHORE - LONG TERM SENSING SITE200104090001St. Clair 
1926944ONT Lake Huron, TOBERMORY "NEW"200204240002Lake Huron 
1926945ONT Lake Huron, TOBERMORY "NEW"200204240002Lake Huron 
1926946ONT Lake Huron, TOBERMORY "NEW"200204240002Lake Huron 
1926947ONT Lake Huron, TOBERMORY "NEW"200204240002Lake Huron 
1926959ONT Lake Huron, Georgian Bay, NOTTAWASAGA RIVER "NEW"200204240002Lake Huron 
1926960ONT Lake Huron, Georgian Bay, PARRY SOUND HBR - MORE PRECISE POSITION RECORDED W200204240002Lake Huron 
1926961ONT Lake Huron, Georgian Bay, PARRY SOUND HBR - MORE PRECISE POSITION RECORDED W200204240002Lake Huron 
1926962ONT Lake Huron, Georgian Bay, PARRY SOUND HBR - MORE PRECISE POSITION RECORDED W200204240002Lake Huron 
1926963ONT Lake Huron, Georgian Bay, PARRY SOUND HBR - MORE PRECISE POSITION RECORDED W200204240002Lake Huron 
1926964ONT Lake Huron, Georgian Bay, PARRY SOUND HBR - MORE PRECISE POSITION RECORDED W200204240002Lake Huron 
1926970ONT Lake Huron, Georgian Bay, WIARTON - NORTH END OF COLPOYS BAY - WES T SIDE OF200204240002Lake Huron 
1926971ONT Lake Huron, Georgian Bay, WIARTON - NORTH END OF COLPOYS BAY - WES T SIDE OF200204240002Lake Huron 
1926972ONT Lake Huron, Georgian Bay, COLLINGWOOD - 4.5KM OFFSHORE200204240002Lake Huron 
1926973ONT Lake Huron, Georgian Bay, SEVERN SOUND - SW OF SNAKE ISLAND MORE P RECISE PO200204240002Lake Huron 
1926974ONT Lake Huron, Georgian Bay, SEVERN SOUND - SW OF SNAKE ISLAND MORE P RECISE PO200204240002Lake Huron 
1926975ONT Lake Huron, Georgian Bay, PARRY SOUND - OUTER HARBOUR200204240002Lake Huron 
1926976ONT Lake Huron, Georgian Bay, PARRY SOUND - OUTER HARBOUR200204240002Lake Huron 
1926977ONT Lake Huron, Georgian Bay, PARRY SOUND - OUTER HARBOUR200204240002Lake Huron 
1926978ONT Lake Huron, Georgian Bay, PARRY SOUND - OUTER HARBOUR200204240002Lake Huron 
1926979ONT Lake Huron, Georgian Bay, PARRY SOUND - OUTER HARBOUR200204240002Lake Huron 
1926999ONT Lake Huron, Georgian Bay, GO HOME BAY "NEW"200204240002Lake Huron 
1927000ONT Lake Huron, Georgian Bay, GO HOME BAY "NEW"200204240002Lake Huron 
1927001ONT Lake Huron, Georgian Bay, GO HOME BAY "NEW"200204240002Lake Huron 
1927002ONT Lake Huron, Georgian Bay, GO HOME BAY "NEW"200204240002Lake Huron 
1927003ONT Lake Huron, Georgian Bay, GO HOME BAY "NEW"200204240002Lake Huron 
1927004ONT Lake Huron, Georgian Bay, PT AU BARIL "NEW"200204240002Lake Huron 
1926948ONT Lake Erie, MID-CHANNEL AT NIAGARA RIVER SOURCE200104260000Lake Erie 
1926949ONT Lake Erie, MID-CHANNEL AT NIAGARA RIVER SOURCE200104260000Lake Erie 
1926952ONT Lake Ontario, PRESQU'ILE200304280002Lake Ontario 
1926953ONT Lake Ontario, PRESQU'ILE200304280002Lake Ontario 
1926954ONT Lake Ontario, PRINCE EDWARD POINT TRANSECT #23 - 20 METERS200304280002Lake Ontario 
1926955ONT Lake Ontario, PRINCE EDWARD POINT TRANSECT #23 - 20 METERS200304280002Lake Ontario 
1926956ONT Lake Ontario, PRINCE EDWARD POINT TRANSECT #23 - 20 METERS200304280002Lake Ontario 
1926957ONT Lake Ontario, PRINCE EDWARD POINT TRANSECT #23 - 20 METERS200304280002Lake Ontario 
1926980ONT Lake Ontario, NORTH CHANNEL WEST OF KINGSTON PDGPS200304280002Lake Ontario 
1926981ONT Lake Ontario, NORTH CHANNEL WEST OF KINGSTON PDGPS200304280002Lake Ontario 
1926982ONT Lake Ontario, NORTH CHANNEL WEST OF KINGSTON PDGPS200304280002Lake Ontario 
1926983ONT Lake Ontario, NORTH CHANNEL WEST OF KINGSTON PDGPS200304280002Lake Ontario 
1926986ONT Lake Erie, NANTICOKE - PEACOCK POINT - LONG TERM SENSING SITE200104260000Lake Erie 
1926950ONT TEST200304270103Sixteen Mile Creek-Frontal Lake Ontario 
1926951ONT TEST200304270103Sixteen Mile Creek-Frontal Lake Ontario 
1926984ONT Lake Erie, GRAND RIVER - LONG TERM SENSING SITE200104260000Lake Erie 
1926985ONT Lake Erie, GRAND RIVER - LONG TERM SENSING SITE200104260000Lake Erie 
1926987ONT Lake Erie, NANTICOKE - PEACOCK POINT - LONG TERM SENSING SITE200104260000Lake Erie 
1926988ONT Lake Erie, NANTICOKE - PEACOCK POINT - LONG TERM SENSING SITE200104260000Lake Erie 
1926989ONT Lake Erie, POINTE AUX PINS - LONG TERM SENSING SITE200104260000Lake Erie 
1926990ONT Lake Erie, POINTE AUX PINS - LONG TERM SENSING SITE200104260000Lake Erie 
1926991ONT Lake Erie, POINTE AUX PINS - LONG TERM SENSING SITE200104260000Lake Erie 
1926992ONT Lake Erie, POINTE AUX PINS - LONG TERM SENSING SITE200104260000Lake Erie 
1926993ONT Lake Erie, POINTE AUX PINS - LONG TERM SENSING SITE200104260000Lake Erie 

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: 4/14/2026