Species: Brown trout (Salmo trutta)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Tverrbekken | Innlandet, Norway | 5 | 1 | 0 | 1997-09-18 | |
| Tverrelva | Troms, Norway | 2 | 1 | 0 | 1994-05-30 | |
| Tysseelva | Vestland, Norway | 4 | 1 | 0 | 1997-09-18 | |
| Tømmervatnet | Troms, Norway | 1 | 1 | 0 | 1993-09-17 | |
| Ulfsbakktjønn | Vestfold, Norway | 2 | 1 | 0 | 1996-09-25 | |
| Urevann | Nordland, Norway | 1 | 1 | 0 | 1994-10-06 | |
| vassenden | Innlandet, Norway | 1 | 1 | 0 | 2019-09-10 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1990-10-04 | |
| Virikbekken | Vestfold, Norway | 1 | 1 | 0 | 2001-05-10 | |
| Vollsvatnet | Trøndelag, Norway | 1 | 1 | 1 | 2012-06-13 | |
| Vågdalselva | Troms, Norway | 3 | 1 | 0 | 1995-06-02 | |
| Vågelva | Vestland, Norway | 1 | 1 | 0 | 2006-05-22 | |
| Ørnakkelva | Nordland, Norway | 1 | 1 | 0 | 1993-09-23 | |
| Øvre Hoelsjø | Akershus, Norway | 1 | 1 | 0 | 1994-09-12 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-01 | |
| Ålesundsaksla | Møre og Romsdal, Norway | 1 | 1 | 0 | 1999-10-07 | |
| Åletjern | Telemark, Norway | 2 | 1 | 0 | 2000-06-06 | |
| Åstveitvannet | Vestland, Norway | 1 | 1 | 0 | 1989-09-07 | |
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