GLANSIS

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.
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Specimen ID	State	County	Locality	Year	HUC Number	Drainage Name	Status
155479	MI	Alger	Beaver Lake, Pictured Rocks National Lakeshore	1998	04020201	Betsy-Chocolay	established
155901	MI	Marquette	Lake Michigamme	2001	04030107	Michigamme	established
248260	MI	Grand Traverse	Long Lake [~5 mi. SW of Traverse City, MI]	1994	04060104	Betsie-Platte	unknown
163772	MI	Grand Traverse	Long Lake [~5 mi. SW of Traverse City, MI]	1994	04060104	Betsie-Platte	established
243348	MI	Keweenaw	Lake Medora	2005	04020103	Keweenaw Peninsula	collected
243349	MI	Keweenaw	Lac La Belle	2005	04020103	Keweenaw Peninsula	collected
243350	MI	Marquette	Dead River Storage Basin	2005	04020105	Dead-Kelsey	collected
243351	MI	Marquette	Forestville Basin (Three Lakes)	2005	04020105	Dead-Kelsey	collected
243352	MI	Iron	Michigamme Reservoir	2005	04030107	Michigamme	collected
243353	MI	Iron	Peavy (Reservoir) Pond	2005	04030107	Michigamme	collected
276924	MI	Mason	Lake Michigan	1988	04060101	Pere Marquette-White	unknown
630843	MI	Ontonagon	Lake Gogebic	2013	04020102	Ontonagon	established
630836	MI	Ontonagon	Lake Gogebic	2012	04020102	Ontonagon	established
630837	MI	Ontonagon	Lake Gogebic	2012	04020102	Ontonagon	established
630838	MI	Ontonagon	Lake Gogebic	2012	04020102	Ontonagon	established
630839	MI	Ontonagon	Lake Gogebic	2013	04020102	Ontonagon	established
630840	MI	Ontonagon	Lake Gogebic	2013	04020102	Ontonagon	established
630841	MI	Ontonagon	Lake Gogebic	2013	04020102	Ontonagon	established
630842	MI	Ontonagon	Lake Gogebic	2013	04020102	Ontonagon	established
1560373	MI	Gogebic	[No locality description provided]	2013	04020102	Ontonagon	established
1609867	MI	Marquette	[No locality description provided]	2017	04030107	Michigamme	established
1692081	MI	Marquette	Lake Michigamme	2017	04030107	Michigamme	established
1757652	MI	Houghton	Keweenaw Waterway	2020	04020103	Keweenaw Peninsula
4048	MI		Lake Huron	1988	04240002	Lake Huron	established
4350	MI		Lake Huron	1984	04240002	Lake Huron	established
160821	MI		Lake Huron, southern part	1984	04240002	Lake Huron	established
4227	MI		Lake Michigan	1988	04190000	Lake Michigan	established
4356	MI		Lake Michigan	1986	04190000	Lake Michigan	established
4265	MI		Lake Superior	1987	04180000	Lake Superior	established
168296	MI	Keweenaw	Lake Superior, from Amygdaloid Channel [between Amygdaloid Island and Isle Royale]	2006	04180000	Lake Superior	established
252998	MI	Sanilac	Lake Huron, EPA Station HU09	1999	04240002	Lake Huron	established
255046	MI	Sanilac	Lake Huron, EPA Station HU09	2001	04240002	Lake Huron	established
250058	MI	Sanilac	Lake Huron, EPA Station HU09	1998	04240002	Lake Huron	established
255134	MI	Sanilac	Lake Huron, EPA Station HU09	2002	04240002	Lake Huron	established
253000	MI	Huron	Lake Huron, EPA Station HU15M	1999	04240002	Lake Huron	established
255048	MI	Huron	Lake Huron, EPA Station HU15M	2001	04240002	Lake Huron	established
250060	MI	Huron	Lake Huron, EPA Station HU15M	1998	04240002	Lake Huron	established
255135	MI	Huron	Lake Huron, EPA Station HU15M	2003	04240002	Lake Huron	established
255231	MI	Huron	Lake Huron, EPA Station HU15M	2005	04240002	Lake Huron	established
255232	MI	Huron	Lake Huron, EPA Station HU15M	2006	04240002	Lake Huron	established
253001	MI	Iosco	Lake Huron, EPA Station HU27	2001	04240002	Lake Huron	established
250061	MI	Iosco	Lake Huron, EPA Station HU27	1999	04240002	Lake Huron	established
255049	MI	Iosco	Lake Huron, EPA Station HU27	2002	04240002	Lake Huron	established
253002	MI	Iosco	Lake Huron, EPA Station HU32	1999	04240002	Lake Huron	established
255052	MI	Iosco	Lake Huron, EPA Station HU32	2001	04240002	Lake Huron	established
255136	MI	Iosco	Lake Huron, EPA Station HU32	2002	04240002	Lake Huron	established
250062	MI	Iosco	Lake Huron, EPA Station HU32	1998	04240002	Lake Huron	established
253004	MI	Alcona	Lake Huron, EPA Station HU37	2001	04240002	Lake Huron	established
255060	MI	Alcona	Lake Huron, EPA Station HU37	2002	04240002	Lake Huron	established
250063	MI	Alcona	Lake Huron, EPA Station HU37	1999	04240002	Lake Huron	established
255062	MI	Alpena	Lake Huron, EPA Station HU45M	2001	04240002	Lake Huron	established
255233	MI	Alpena	Lake Huron, EPA Station HU45M	2003	04240002	Lake Huron	established
253006	MI	Alpena	Lake Huron, EPA Station HU45M	1999	04240002	Lake Huron	established
255138	MI	Alpena	Lake Huron, EPA Station HU45M	2002	04240002	Lake Huron	established
250065	MI	Alpena	Lake Huron, EPA Station HU45M	1998	04240002	Lake Huron	established
255247	MI	Alpena	Lake Huron, EPA Station HU45M	2004	04240002	Lake Huron	established
255249	MI	Alpena	Lake Huron, EPA Station HU45M	2006	04240002	Lake Huron	established
255248	MI	Alpena	Lake Huron, EPA Station HU45M	2005	04240002	Lake Huron	established
250067	MI	Presque Isle	Lake Huron, EPA Station HU53	1998	04240002	Lake Huron	established
253008	MI	Presque Isle	Lake Huron, EPA Station HU53	1999	04240002	Lake Huron	established
255140	MI	Presque Isle	Lake Huron, EPA Station HU53	2002	04240002	Lake Huron	established
255064	MI	Presque Isle	Lake Huron, EPA Station HU53	2001	04240002	Lake Huron	established
250068	MI	Presque Isle	Lake Huron, EPA Station HU54M [off Rogers City]	1994	04240002	Lake Huron	established
255065	MI	Presque Isle	Lake Huron, EPA Station HU54M [off Rogers City]	1999	04240002	Lake Huron	established
253009	MI	Presque Isle	Lake Huron, EPA Station HU54M [off Rogers City]	1998	04240002	Lake Huron	established
255141	MI	Presque Isle	Lake Huron, EPA Station HU54M [off Rogers City]	2006	04240002	Lake Huron	established
255142	MI	Presque Isle	Lake Huron, EPA Station HU61	2002	04240002	Lake Huron	established
255066	MI	Presque Isle	Lake Huron, EPA Station HU61	2001	04240002	Lake Huron	established
250069	MI	Presque Isle	Lake Huron, EPA Station HU61	1998	04240002	Lake Huron	established
253012	MI	Presque Isle	Lake Huron, EPA Station HU61	1999	04240002	Lake Huron	established
250174	MI	Van Buren	Lake Michigan, EPA Station MI11	1999	04190000	Lake Michigan	established
253019	MI	Van Buren	Lake Michigan, EPA Station MI11	2001	04190000	Lake Michigan	established
255143	MI	Van Buren	Lake Michigan, EPA Station MI11	2002	04190000	Lake Michigan	established
253021	MI	Allegan	Lake Michigan, middle of lake W of Holland, EPA Station MI18M	1998	04190000	Lake Michigan	established
255250	MI	Allegan	Lake Michigan, middle of lake W of Holland, EPA Station MI18M	2006	04190000	Lake Michigan	established
250176	MI	Allegan	Lake Michigan, middle of lake W of Holland, EPA Station MI18M	1994	04190000	Lake Michigan	established
255145	MI	Allegan	Lake Michigan, middle of lake W of Holland, EPA Station MI18M	1999	04190000	Lake Michigan	established
255234	MI	Allegan	Lake Michigan, middle of lake W of Holland, EPA Station MI18M	2002	04190000	Lake Michigan	established
253022	MI	Ottawa	Lake Michigan, off Grand Haven, EPA Station MI19	1999	04190000	Lake Michigan	established
255146	MI	Ottawa	Lake Michigan, off Grand Haven, EPA Station MI19	2001	04190000	Lake Michigan	established
250177	MI	Ottawa	Lake Michigan, off Grand Haven, EPA Station MI19	1994	04190000	Lake Michigan	established
255235	MI	Ottawa	Lake Michigan, off Grand Haven, EPA Station MI19	2002	04190000	Lake Michigan	established
253023	MI	Muskegon	Lake Michigan, middle of lake off Muskegon, EPA Station MI23	1999	04190000	Lake Michigan	established
255236	MI	Muskegon	Lake Michigan, middle of lake off Muskegon, EPA Station MI23	2002	04190000	Lake Michigan	established
250178	MI	Muskegon	Lake Michigan, middle of lake off Muskegon, EPA Station MI23	1994	04190000	Lake Michigan	established
255147	MI	Muskegon	Lake Michigan, middle of lake off Muskegon, EPA Station MI23	2001	04190000	Lake Michigan	established
255237	MI	Oceana	Lake Michigan, off Little Point Sable, EPA Station MI27M	2002	04190000	Lake Michigan	established
255251	MI	Oceana	Lake Michigan, off Little Point Sable, EPA Station MI27M	2006	04190000	Lake Michigan	established
250179	MI	Oceana	Lake Michigan, off Little Point Sable, EPA Station MI27M	1994	04190000	Lake Michigan	established
253024	MI	Oceana	Lake Michigan, off Little Point Sable, EPA Station MI27M	1999	04190000	Lake Michigan	established
255148	MI	Oceana	Lake Michigan, off Little Point Sable, EPA Station MI27M	2001	04190000	Lake Michigan	established
255150	MI	Mason	Lake Michigan, EPA Station MI34	2002	04190000	Lake Michigan	established
253026	MI	Mason	Lake Michigan, EPA Station MI34	2001	04190000	Lake Michigan	established
250181	MI	Mason	Lake Michigan, EPA Station MI34	1999	04190000	Lake Michigan	established
250270	MI	Benzie	Lake Michigan, EPA Station MI41M	1998	04190000	Lake Michigan	established
253114	MI	Benzie	Lake Michigan, EPA Station MI41M	1999	04190000	Lake Michigan	established
255152	MI	Benzie	Lake Michigan, EPA Station MI41M	2001	04190000	Lake Michigan	established
255238	MI	Benzie	Lake Michigan, EPA Station MI41M	2006	04190000	Lake Michigan	established
250317	MI	Chippewa	Lake Superior, EPA Station SU01M	1998	04180000	Lake Superior	established
253157	MI	Chippewa	Lake Superior, EPA Station SU01M	1999	04180000	Lake Superior	established
255240	MI	Chippewa	Lake Superior, EPA Station SU01M	2001	04180000	Lake Superior	established
255267	MI	Chippewa	Lake Superior, EPA Station SU01M	2005	04180000	Lake Superior	established
255266	MI	Chippewa	Lake Superior, EPA Station SU01M	2003	04180000	Lake Superior	established
255268	MI	Chippewa	Lake Superior, EPA Station SU01M	2006	04180000	Lake Superior	established
255252	MI	Chippewa	Lake Superior, EPA Station SU01M	2002	04180000	Lake Superior	established
253167	MI	Luce	Lake Superior, EPA Station SU03	2001	04180000	Lake Superior	established
250319	MI	Luce	Lake Superior, EPA Station SU03	1999	04180000	Lake Superior	established
255242	MI	Luce	Lake Superior, EPA Station SU03	2002	04180000	Lake Superior	established
253168	MI	Alger	Lake Superior, EPA Station SU04	2002	04180000	Lake Superior	established
250320	MI	Alger	Lake Superior, EPA Station SU04	1998	04180000	Lake Superior	established
250321	MI	Alger	Lake Superior, EPA Station SU05	1998	04180000	Lake Superior	established
253169	MI	Alger	Lake Superior, EPA Station SU05	1999	04180000	Lake Superior	established
255243	MI	Alger	Lake Superior, EPA Station SU05	2001	04180000	Lake Superior	established
255253	MI	Alger	Lake Superior, EPA Station SU05	2002	04180000	Lake Superior	established
250325	MI	Alger	Lake Superior, EPA Station SU08M	1998	04180000	Lake Superior	established
253171	MI	Alger	Lake Superior, EPA Station SU08M	2002	04180000	Lake Superior	established
255245	MI	Alger	Lake Superior, EPA Station SU08M	2006	04180000	Lake Superior	established
250335	MI	Keweenaw	Lake Superior, EPA Station SU10	1998	04180000	Lake Superior	established
253173	MI	Keweenaw	Lake Superior, EPA Station SU10	1999	04180000	Lake Superior	established
255256	MI	Keweenaw	Lake Superior, EPA Station SU10	2002	04180000	Lake Superior	established
253175	MI	Keweenaw	Lake Superior, EPA Station SU12	1999	04180000	Lake Superior	established
255269	MI	Keweenaw	Lake Superior, EPA Station SU12	2002	04180000	Lake Superior	established
250337	MI	Keweenaw	Lake Superior, EPA Station SU12	1998	04180000	Lake Superior	established
255259	MI	Keweenaw	Lake Superior, EPA Station SU12	2001	04180000	Lake Superior	established
253176	MI	Keweenaw	Lake Superior, EPA Station SU13	2001	04180000	Lake Superior	established
250338	MI	Keweenaw	Lake Superior, EPA Station SU13	1999	04180000	Lake Superior	established
253178	MI	Keweenaw	Lake Superior, EPA Station SU14	1999	04180000	Lake Superior	established
255270	MI	Keweenaw	Lake Superior, EPA Station SU14	2002	04180000	Lake Superior	established
250339	MI	Keweenaw	Lake Superior, EPA Station SU14	1998	04180000	Lake Superior	established
255260	MI	Keweenaw	Lake Superior, EPA Station SU14	2001	04180000	Lake Superior	established
250341	MI	Ontonagon	Lake Superior, EPA Station SU16	1998	04180000	Lake Superior	established
253181	MI	Ontonagon	Lake Superior, EPA Station SU16	1999	04180000	Lake Superior	established
255261	MI	Ontonagon	Lake Superior, EPA Station SU16	2001	04180000	Lake Superior	established
250342	MI	Ontonagon	Lake Superior, EPA Station SU17M	1998	04180000	Lake Superior	established
253182	MI	Ontonagon	Lake Superior, EPA Station SU17M	1999	04180000	Lake Superior	established
255262	MI	Ontonagon	Lake Superior, EPA Station SU17M	2001	04180000	Lake Superior	established
255271	MI	Ontonagon	Lake Superior, EPA Station SU17M	2006	04180000	Lake Superior	established
250313	MI	Allegan	Lake Michigan, off Saugatuck, EPA Station 310	1995	04190000	Lake Michigan	established
250312	MI	Allegan	Lake Michigan, off Saugatuck, EPA Station 310	1994	04190000	Lake Michigan	established
250314	MI	Allegan	Lake Michigan, off Saugatuck, EPA Station 340	1995	04190000	Lake Michigan	established
250315	MI	Allegan	Lake Michigan, off Saugatuck, EPA Station 380	1994	04190000	Lake Michigan	established
250316	MI	Delta	Lake Michigan (Green Bay), EPA Station GB24M	1994	04190000	Lake Michigan	established
269025	MI	Keweenaw	Lake Superior	1987	04180000	Lake Superior	established
276086	MI	Keweenaw	Little Trout Bay, Thunder Bay District	1998	04180000	Lake Superior	unknown
276423	MI	Huron	Lake Huron, Bruce County	1988	04240002	Lake Huron	unknown
276888	MI	St. Clair	Lake Huron	1988	04240002	Lake Huron	unknown
276889	MI	Arenac	Lake Huron	1988	04240002	Lake Huron	unknown
276890	MI	Arenac	Lake Huron	1988	04240002	Lake Huron	unknown
276891	MI	Presque Isle	Lake Huron	1988	04240002	Lake Huron	unknown
276892	MI	Mackinac	Lake Huron	1988	04240002	Lake Huron	unknown
276897	MI	Berrien	Lake Michigan, Berrien County [likely off mouth of St. Joseph River]	1987	04190000	Lake Michigan	unknown
276898	MI	Ottawa	Lake Michigan	1986	04190000	Lake Michigan	unknown
276899	MI	Berrien	Lake Michigan	1987	04190000	Lake Michigan	unknown
276918	MI	Allegan	Lake Michigan, Allegan County [likely off Saugatuck]	1988	04190000	Lake Michigan	unknown
276902	MI	Allegan	Lake Michigan, Allegan County [likely off Saugatuck]	1987	04190000	Lake Michigan	unknown
276919	MI	Allegan	Lake Michigan	1988	04190000	Lake Michigan	unknown
276903	MI	Allegan	Lake Michigan	1987	04190000	Lake Michigan	unknown
276921	MI	Mason	Lake Michigan	1988	04190000	Lake Michigan	unknown
276905	MI	Mason	Lake Michigan	1987	04190000	Lake Michigan	unknown
276908	MI	Mason	Lake Michigan	1987	04190000	Lake Michigan	unknown
276925	MI	Benzie	Lake Michigan	1988	04190000	Lake Michigan	unknown
276909	MI	Benzie	Lake Michigan	1987	04190000	Lake Michigan	unknown
276911	MI	Benzie	Lake Michigan	1987	04190000	Lake Michigan	unknown
276928	MI	Benzie	Lake Michigan	1988	04190000	Lake Michigan	unknown
276930	MI	Schoolcraft	Lake Michigan	1988	04190000	Lake Michigan	unknown
276914	MI	Schoolcraft	Lake Michigan	1987	04190000	Lake Michigan	unknown
276915	MI	Schoolcraft	Lake Michigan	1987	04190000	Lake Michigan	unknown
276932	MI	Ottawa	Lake Michigan	1988	04190000	Lake Michigan	unknown
276933	MI	Ottawa	Lake Michigan, Ottawa County	1988	04190000	Lake Michigan	unknown
276934	MI	Oceana	Lake Michigan	1988	04190000	Lake Michigan	unknown
1424975	MI	Mason	Lake Michigan	1986	04190000	Lake Michigan	established
1425216	MI	Keweenaw	Lake Superior	1987	04180000	Lake Superior	established
1564304	MI	Alcona	[No locality description provided]	2014	04070006	Thunder Bay	established
1609895	MI	Ontonagon	[No locality description provided]	2017	04180000	Lake Superior	established
1710132	MI	Chippewa	St. Mary's River	2015	04200002	St. Marys
1710134	MI	Chippewa	St. Mary's River	2015	04200002	St. Marys
1882662	MI	Muskegon	Lake Michigan	2015	04190000	Lake Michigan	established
1882663	MI	Muskegon	Lake Michigan	2015	04190000	Lake Michigan	established
1882664	MI	Muskegon	Lake Michigan	2015	04190000	Lake Michigan	established
1882665	MI	Muskegon	Lake Michigan	2015	04190000	Lake Michigan	established

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