GLANSIS

Eurytemora affinis

A calanoid copepod

Collection Information for Eurytemora affinis

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 ID	State	County	Locality	Year	HUC Number	Drainage Name	Status
4154	MN		Lake Superior	1972	04180000	Lake Superior	established
253310	NY	Monroe	Lake Ontario, EPA Station ON55M	2002	04280002	Lake Ontario	established
252872	ON		Lake Erie, EPA Station ER61	2001	04260000	Lake Erie	established
253290	OH	Ottawa	Lake Erie, EPA Station ER58	1999	04260000	Lake Erie	established
252874	ON		Lake Erie, EPA Station ER91M	2001	04260000	Lake Erie	established
252875	ON		Lake Erie, EPA Station ER92	2001	04260000	Lake Erie	established
253309	ON		Lake Ontario, EPA Station ON49	2001	04280002	Lake Ontario	established
253326	OH	Lucas	Lake Erie, EPA Station ER59	2002	04260000	Lake Erie	established
253328	ON		Lake Erie, EPA Station ER91M	2003	04260000	Lake Erie	established
253329	ON		Lake Erie, EPA Station ER91M	2004	04260000	Lake Erie	established
253330	ON		Lake Erie, EPA Station ER91M	2005	04260000	Lake Erie	established
253283	ON		Lake Ontario, EPA Station ON25	2002	04280002	Lake Ontario	established
253285	ON		Lake Erie, EPA Station ER91M	1999	04260000	Lake Erie	established
253287	ON		Lake Erie, EPA Station ER61	2002	04260000	Lake Erie	established
252824	ON		Lake Ontario, EPA Station ON63	2001	04280002	Lake Ontario	established
252764	ON		Lake Erie, EPA Station ER30	1999	04260000	Lake Erie	established
252771	OH	Cuyahoga	Lake Erie, EPA Station ER43	2001	04260000	Lake Erie	established
252772	OH	Ottawa	Lake Erie, EPA Station ER58	1998	04260000	Lake Erie	established
252775	OH	Lucas	Lake Erie, USEPA Great Lakes National Program Office (GLNPO) monitoring station ER60	1999	04260000	Lake Erie	established
252787	IL	Cook	Lake Michigan, off Evanston, EPA Station MI05	1995	04190000	Lake Michigan	established
252877	ON		Lake Ontario, EPA Station ON25	2001	04280002	Lake Ontario	established
252868	NY	Chautauqua	Lake Erie, EPA Station ER09	2002	04260000	Lake Erie	established
252885	ON		Lake Erie, EPA Station ER91M	2002	04260000	Lake Erie	established
252888	NY	Monroe	Lake Ontario, EPA Station ON55M	2004	04280002	Lake Ontario	established
252889	OH	Lucas	Lake Erie, EPA Station ER59	2002	04260000	Lake Erie	established
253295	ON		Lake Erie, EPA Station ER15M	2004	04260000	Lake Erie	established
253296	OH	Lucas	Lake Erie, EPA Station ER59	2001	04260000	Lake Erie	established
253297	OH	Lucas	Lake Erie, USEPA Great Lakes National Program Office (GLNPO) monitoring station ER60	2002	04260000	Lake Erie	established
253286	OH	Lake	Lake Erie, EPA Station ER78M	2006	04260000	Lake Erie	established
253292	ON		Lake Erie, EPA Station ER15M	2002	04260000	Lake Erie	established
253293	ON		Lake Erie, EPA Station ER15M	2002	04260000	Lake Erie	established
253306	ON		Lake Ontario, EPA Station ON49	2001	04280002	Lake Ontario	established
253212	NY	Monroe	Lake Ontario, EPA Station ON55M	2001	04280002	Lake Ontario	established
253216	ON		Lake Ontario, EPA Station ON33M	2002	04280002	Lake Ontario	established
252763	ON		Lake Erie, EPA Station ER15M	1998	04260000	Lake Erie	established
241450			Lake Michigan	1964	04190000	Lake Michigan	established
241449	NY		Lake Ontario	1958	04280002	Lake Ontario	established
252882	OH	Lucas	Lake Erie, USEPA Great Lakes National Program Office (GLNPO) monitoring station ER60	2002	04260000	Lake Erie	established
253291	OH	Cuyahoga	Lake Erie, EPA Station ER43	2002	04260000	Lake Erie	established
253299	ON		Lake Erie, EPA Station ER92	2002	04260000	Lake Erie	established
253300	ON		Lake Ontario, EPA Station ON33M	2005	04280002	Lake Ontario	established
253284	ON		Lake Erie, EPA Station ER92	2001	04260000	Lake Erie	established
253331	ON		Lake Erie, EPA Station ER91M	2006	04260000	Lake Erie	established
253327	ON		Lake Erie, EPA Station ER91M	2002	04260000	Lake Erie	established
253288	OH	Lucas	Lake Erie, USEPA Great Lakes National Program Office (GLNPO) monitoring station ER60	2001	04260000	Lake Erie	established
252871	OH	Lucas	Lake Erie, USEPA Great Lakes National Program Office (GLNPO) monitoring station ER60	2001	04260000	Lake Erie	established
252879	NY	Monroe	Lake Ontario, EPA Station ON55M	1998	04280002	Lake Ontario	established
4151	NY		Lake Erie	1961	04260000	Lake Erie	established
4152	IL		Lake Michigan	1972	04190000	Lake Michigan	established
4153	MI		Lake Huron	1966	04240002	Lake Huron	established
252881	OH	Lucas	Lake Erie, EPA Station ER59	2001	04260000	Lake Erie	established
252883	ON		Lake Erie, EPA Station ER61	2002	04260000	Lake Erie	established
252794	MI	Oceana	Lake Michigan, off Little Point Sable, EPA Station MI27M	1999	04190000	Lake Michigan	established
252795	WI	Door	Lake Michigan, Middle of lake E of Sister Bay, EPA Station MI47	1999	04190000	Lake Michigan	established
252800	ON		Lake Ontario, EPA Station ON33M	1998	04280002	Lake Ontario	established
252801	ON		Lake Ontario, EPA Station ON41	2002	04280002	Lake Ontario	established
252829	MI	Allegan	Lake Michigan, off Saugatuck, EPA Station 310	1994	04190000	Lake Michigan	established
252887	ON		Lake Erie, EPA Station ER92	2002	04260000	Lake Erie	established
252891	ON		Lake Erie, EPA Station ER91M	2004	04260000	Lake Erie	established
252892	ON		Lake Erie, EPA Station ER91M	2005	04260000	Lake Erie	established
252873	OH	Lake	Lake Erie, EPA Station ER78M	2002	04260000	Lake Erie	established
253294	ON		Lake Erie, EPA Station ER15M	2004	04260000	Lake Erie	established
252769	ON		Lake Erie, EPA Station ER38	2002	04260000	Lake Erie	established
252776	ON		Lake Erie, EPA Station ER61	2001	04260000	Lake Erie	established
252778	ON		Lake Erie, EPA Station ER73	2002	04260000	Lake Erie	established
252781	ON		Lake Erie, EPA Station ER92	1998	04260000	Lake Erie	established
252789	MI	Muskegon	Lake Michigan, middle of lake off Muskegon, EPA Station MI23	1999	04190000	Lake Michigan	established
252805	NY	Wayne	Lake Ontario, EPA Station ON60	1998	04280002	Lake Ontario	established
252832	MI	Chippewa	Lake Superior, EPA Station SU01M	1999	04180000	Lake Superior	established
252799	ON		Lake Ontario, EPA Station ON25	2001	04280002	Lake Ontario	established
252802	ON		Lake Ontario, EPA Station ON49	1998	04280002	Lake Ontario	established
252804	NY	Monroe	Lake Ontario, EPA Station ON55M	1998	04280002	Lake Ontario	established
252890	ON		Lake Erie, EPA Station ER91M	2003	04260000	Lake Erie	established
252869	OH	Ottawa	Lake Erie, EPA Station ER58	2002	04260000	Lake Erie	established
156838	NY		Lake Ontario	1999	04280002	Lake Ontario	established
253215	ON		Lake Ontario, EPA Station ON49	1999	04280002	Lake Ontario	established
253298	ON		Lake Erie, EPA Station ER91M	2001	04260000	Lake Erie	established
252766	OH	Lake	Lake Erie, EPA Station ER32	2001	04260000	Lake Erie	established
252768	OH	Lake	Lake Erie, EPA Station ER36	2001	04260000	Lake Erie	established
252773	OH	Lucas	Lake Erie, EPA Station ER59	1998	04260000	Lake Erie	established
252779	OH	Lake	Lake Erie, EPA Station ER78M	2001	04260000	Lake Erie	established
252780	ON		Lake Erie, EPA Station ER91M	1998	04260000	Lake Erie	established
252870	OH	Lucas	Lake Erie, EPA Station ER59	1999	04260000	Lake Erie	established
253289	OH	Lucas	Lake Erie, EPA Station ER59	1999	04260000	Lake Erie	established
1884292	PA	Erie	Presque Isle Bay, Lake Erie	2017	04260000	Lake Erie	established

Citation for this information:
U.S. Geological Survey, 2026, Eurytemora affinis: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 1/20/2026