Gammarus lacustris
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| terry whittall | Nordland, Norway | 20 | 1 | 0 | 2006-07-20 |
| Utheim skole | Møre og Romsdal, Norway | 14 | 1 | 0 | 1996-08-27 |
| Tjodalyng ungdomsskole | Vestfold, Norway | 14 | 1 | 0 | 1998-09-22 |
| Grasmyr ungdomsskole | Telemark, Norway | 13 | 1 | 0 | 1995-10-04 |
| Nelaug skule | Agder, Norway | 13 | 1 | 0 | 1997-09-23 |
| Sandbakken barne- og ungdomsskole | Østfold, Norway | 12 | 1 | 0 | 1997-05-28 |
| Lauvsnes skole | Trøndelag, Norway | 11 | 1 | 0 | 1996-06-11 |
| Samfundets skole, avd. Søgne | Agder, Norway | 10 | 1 | 0 | 1998-09-24 |
| Berg skole | Østfold, Norway | 9 | 1 | 0 | 1996-09-16 |
| Vanvikan skole | Trøndelag, Norway | 8 | 1 | 0 | 1995-06-15 |
| Bjørgum skule | Vestland, Norway | 8 | 1 | 0 | 1998-09-18 |
| Ekne skole | Trøndelag, Norway | 7 | 1 | 0 | 1997-09-25 |
| Greverud skole | Akershus, Norway | 7 | 1 | 0 | 1996-06-05 |
| Hadeland videregående skole/Avdeling Brandbu | Innlandet, Norway | 6 | 1 | 0 | 1996-09-18 |
| Hovedgården ungdomsskole | Akershus, Norway | 5 | 1 | 0 | 2014-10-13 |
| Hafslund ungdomsskole | Østfold, Norway | 5 | 1 | 0 | 1996-10-23 |
| Rødsmyra skole | Østfold, Norway | 5 | 1 | 0 | 1995-05-26 |
| Dølemo skule | Agder, Norway | 5 | 1 | 0 | 1995-05-29 |
| Store Bergan skole | Vestfold, Norway | 5 | 1 | 0 | 1997-05-06 |
| Samfundets skole Egersund | Rogaland, Norway | 4 | 1 | 0 | 1995-06-08 |
| Holmestrand videregående skole | Vestfold, Norway | 4 | 1 | 0 | 1996-09-09 |
| Brumundal videregående skole, SAK | Innlandet, Norway | 4 | 1 | 0 | 1991-10-17 |
| Wilds Minne skole | Agder, Norway | 4 | 1 | 0 | 1994-10-05 |
| Vøyenenga skole | Akershus, Norway | 4 | 1 | 0 | 2008-10-22 |
| Huglo skule | Vestland, Norway | 4 | 1 | 0 | 1995-06-14 |
| Førde skule | Vestland, Norway | 4 | 1 | 0 | 1994-05-26 |
| Tysse skule | Vestland, Norway | 4 | 1 | 0 | 1997-09-18 |
| Samkom skole | Agder, Norway | 4 | 1 | 0 | 1996-10-28 |
| Toso skole | Akershus, Norway | 4 | 1 | 0 | 1997-05-28 |
| Hop skole | Vestland, Norway | 4 | 1 | 0 | 2012-09-25 |
| Dombås skole | Innlandet, Norway | 4 | 1 | 0 | 1997-09-18 |
| Ve skole | Agder, Norway | 4 | 1 | 0 | 1995-06-06 |
| Fenstad skole | Akershus, Norway | 4 | 1 | 0 | 1998-06-17 |
| Kirkevoll barne- og ungdomsskole | Vestland, Norway | 4 | 1 | 0 | 1994-06-15 |
| Skavøypoll skule | Vestland, Norway | 4 | 1 | 0 | 1993-11-04 |
| Trondheim katedralskole | Trøndelag, Norway | 4 | 1 | 0 | 1996-09-04 |
| Holand skole | Nordland, Norway | 4 | 1 | 0 | 1995-05-30 |
| Grøtvedt skole | Østfold, Norway | 3 | 1 | 0 | 1996-04-30 |
| Sæbø skule | Møre og Romsdal, Norway | 3 | 1 | 0 | 2003-09-12 |
| Kirkekretsen skole | Innlandet, Norway | 3 | 1 | 0 | 1994-09-09 |
| Stigeråsen skole | Telemark, Norway | 3 | 1 | 0 | 1994-05-04 |
| Bryne vidaregåande skule | Rogaland, Norway | 3 | 1 | 0 | 1993-06-01 |
| Innvik skule | Vestland, Norway | 3 | 1 | 0 | 1994-10-14 |
| Nyborg skole | Trøndelag, Norway | 3 | 1 | 0 | 2021-09-03 |
| Eiksund skule | Møre og Romsdal, Norway | 3 | 1 | 0 | 1995-05-24 |
| Torvik skole | Møre og Romsdal, Norway | 3 | 1 | 0 | 1994-11-09 |
| Midt-Østerdal videregående skole/Koppang | Innlandet, Norway | 3 | 1 | 0 | 1995-06-06 |
| Vesterdalen skole | Agder, Norway | 3 | 1 | 0 | 1995-05-11 |
| Midtun skole | Vestland, Norway | 3 | 1 | 0 | 2013-05-03 |
| Hamar katedralskole | Innlandet, Norway | 2 | 1 | 0 | 1991-06-09 |