Subphylum: Krepsdyr (Crustacea)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Tranøybotn, Solset | Troms, Norway | 34 | 4 | 1 | 2016-08-03 | |
| Treidene | Vestfold, Norway | 79 | 5 | 0 | 1997-10-28 | |
| Tretjønnet | Agder, Norway | 4 | 4 | 0 | 1990-06-26 | |
| Trolldalen | Telemark, Norway | 4 | 3 | 0 | 1993-09-17 | |
| Trollvatnan | Nordland, Norway | 1 | 1 | 0 | 2005-08-01 | |
| Tromøy | Agder, Norway | 73 | 6 | 0 | 1997-10-14 | |
| Trytetjønnet | Buskerud, Norway | 5 | 5 | 0 | 1989-09-08 | |
| Træ | Vestland, Norway | 2 | 2 | 0 | 2002-11-07 | |
| Tungeneset | Rogaland, Norway | 128 | 6 | 0 | 1997-10-14 | |
| Tussebekken | Akershus, Norway | 5 | 3 | 0 | 1994-09-05 | |
| Tussvatnet | Nordland, Norway | 6 | 6 | 0 | 1990-06-07 | |
| Tveitevannet | Vestland, Norway | 2 | 1 | 1 | 2016-06-01 | |
| Tveitevannet | Vestland, Norway | 4 | 2 | 0 | 2008-09-04 | |
| Tveitevannet | Vestland, Norway | 37 | 8 | 0 | 2011-09-09 | |
| Tverrbekken | Innlandet, Norway | 8 | 2 | 0 | 1997-09-18 | |
| Tybakken/Sofienlund | Agder, Norway | 48 | 3 | 0 | 2002-09-19 | |
| Tysseelva | Vestland, Norway | 8 | 2 | 0 | 1997-09-18 | |
| Tømmervatnet | Troms, Norway | 8 | 7 | 0 | 1994-09-16 | |
| Tømmervågen | Vestland, Norway | 1 | 1 | 1 | 2015-05-05 | |
| Tønsberg | Vestfold, Norway | 15 | 3 | 0 | 1995-10-26 | |
| Tønsberg | Vestfold, Norway | 17 | 3 | 0 | 1999-09-30 | |
| Ulfsbakktjønn | Vestfold, Norway | 13 | 10 | 0 | 1996-09-25 | |
| Ulstein | Møre og Romsdal, Norway | 38 | 5 | 0 | 1995-10-13 | |
| Ulsteinvik | Møre og Romsdal, Norway | 62 | 3 | 0 | 1994-11-04 | |
| Ulsteinvik | Møre og Romsdal, Norway | 38 | 5 | 0 | 1995-10-17 | |
| Unnebergbekken | Østfold, Norway | 18 | 2 | 0 | 1996-09-16 | |
| Urdvatnet | Nordland, Norway | 1 | 1 | 0 | 2005-08-10 | |
| Urevann | Nordland, Norway | 4 | 4 | 0 | 1995-09-15 | |
| Uten navn | Nordland, Norway | 16 | 3 | 0 | 1993-11-15 | |
| Uten navn | Vestfold, Norway | 10 | 5 | 0 | 1995-09-20 | |
| Uten navn | Agder, Norway | 27 | 3 | 0 | 1993-10-11 | |
| Uten navn | Finnmark, Norway | 5 | 2 | 0 | 1993-10-08 | |
| Uten navn | Vestfold, Norway | 112 | 6 | 0 | 1999-05-04 | |
| Uten navn | Rogaland, Norway | 10 | 3 | 0 | 1993-10-11 | |
| Utistubekken | Trøndelag, Norway | 1 | 1 | 0 | 1994-06-08 | |
| utsein kloster | Rogaland, Norway | 2 | 2 | 0 | 2021-09-22 | |
| V. Måsane | Akershus, Norway | 49 | 10 | 0 | 1996-10-09 | |
| Valan | Troms, Norway | 1 | 1 | 0 | 2022-08-16 | |
| Valderøy | Møre og Romsdal, Norway | 86 | 5 | 0 | 1996-10-17 | |
| Valderøy | Møre og Romsdal, Norway | 84 | 5 | 0 | 1995-09-15 | |
| Valen | Vestland, Norway | 25 | 10 | 16 | 2015-08-31 | |
| Vallersund | Trøndelag, Norway | 5 | 2 | 0 | 1993-10-07 | |
| Vallø,Husvik | Vestfold, Norway | 162 | 5 | 0 | 2000-11-07 | |
| Valun,Sandvoll | Vestland, Norway | 6 | 3 | 0 | 1994-06-27 | |
| Vangsmjøsa | Innlandet, Norway | 15 | 9 | 0 | 2022-09-22 | |
| Vangsmjøsa | Innlandet, Norway | 13 | 7 | 0 | 2021-05-31 | |
| Vangsvik | Troms, Norway | 19 | 3 | 0 | 1993-09-01 | |
| Vannareid | Troms, Norway | 2 | 2 | 0 | 1993-11-16 | |
| Vannøya | Vestfold, Norway | 183 | 5 | 0 | 2005-09-28 | |
| Vanvikan | Trøndelag, Norway | 31 | 3 | 0 | 1993-10-08 | |
Sustain.no is provided by the Norwegian Centre for Science Education