Gammarus lacustris
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Trollvatnan | Nordland, Norway | 1 | 1 | 0 | 2005-08-01 | |
| Tussebekken | Akershus, Norway | 2 | 1 | 0 | 1994-09-05 | |
| Tverrbekken | Innlandet, Norway | 4 | 1 | 0 | 1997-09-18 | |
| Tysseelva | Vestland, Norway | 4 | 1 | 0 | 1997-09-18 | |
| Unnebergbekken | Østfold, Norway | 9 | 1 | 0 | 1996-09-16 | |
| Urdvatnet | Nordland, Norway | 1 | 1 | 0 | 2005-08-10 | |
| Utistubekken | Trøndelag, Norway | 1 | 1 | 0 | 1994-06-08 | |
| Vikerauntjønna | Trøndelag, Norway | 2 | 1 | 0 | 1993-09-15 | |
| Virikbekken | Vestfold, Norway | 5 | 1 | 0 | 1997-05-06 | |
| Vålåsjøen | Innlandet, Norway | 1 | 1 | 0 | 1993-06-09 | |
| Ytre Lurfjellvann | Nordland, Norway | 1 | 1 | 0 | 2005-07-10 | |
| Øggardselva | Møre og Romsdal, Norway | 1 | 1 | 0 | 1995-05-24 | |
| Øvsttunstemmen | Vestland, Norway | 2 | 1 | 0 | 2013-04-24 | |
| Øyjordvatnet | Nordland, Norway | 1 | 1 | 0 | 2006-06-01 | |
| Åletjern | Telemark, Norway | 1 | 1 | 0 | 2000-06-06 |