Species: barnacle (Semibalanus balanoides)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bodøsjøen | Nordland, Norway | 2 | 1 | 1 | 2018-04-05 | |
| Drøbak | Akershus, Norway | 1 | 1 | 0 | 2014-10-15 | |
| Drøbak | Akershus, Norway | 1 | 1 | 0 | 2004-05-04 | |
| Eivindvik | Vestland, Norway | 1 | 1 | 1 | 2017-09-27 | |
| Finnfjordbotn, Trollbergan | Troms, Norway | 1 | 1 | 0 | 2013-08-28 | |
| Fjæra på Skjelnan | Troms, Norway | 13 | 1 | 0 | 2007-06-08 | |
| foldnes | Vestland, Norway | 2 | 1 | 0 | 2006-04-21 | |
| Grip | Møre og Romsdal, Norway | 1 | 1 | 0 | 2007-07-06 | |
| Hamn, badeplassen | Vestland, Norway | 1 | 1 | 0 | 2014-05-06 | |
| Herdla | Vestland, Norway | 2 | 1 | 0 | 2008-06-17 | |
| Holmfjord | Finnmark, Norway | 1 | 1 | 0 | 2012-10-02 | |
| Håkonshella | Vestland, Norway | 1 | 1 | 0 | 2020-06-08 | |
| Håkonshella | Vestland, Norway | 3 | 1 | 2 | 2018-05-24 | |
| Håkonshella - Pollen | Vestland, Norway | 1 | 1 | 1 | 2013-08-15 | |
| Håkonshellapollen | Vestland, Norway | 2 | 1 | 1 | 2016-06-09 | |
| Kjerreidviken | Vestland, Norway | 1 | 1 | 1 | 2016-05-10 | |
| Lund-Klungset | Nordland, Norway | 1 | 1 | 1 | 2014-05-29 | |
| Mørkvedbukta, Fjæra | Nordland, Norway | 2 | 1 | 0 | 2014-10-09 | |
| Nordåsvannet | Vestland, Norway | 1 | 1 | 0 | 2010-09-22 | |
| Osen | Nordland, Norway | 1 | 1 | 0 | 2010-05-19 | |
| pollen | Vestland, Norway | 3 | 1 | 0 | 2019-06-12 | |
| Stokmarknes, Vesterålen | Nordland, Norway | 1 | 1 | 1 | 2014-09-18 | |
| Stølsvika | Agder, Norway | 1 | 1 | 0 | 2013-09-02 | |
| Torvanger/Hauge | Vestland, Norway | 3 | 1 | 0 | 2003-11-04 | |
| Torvangerfjæra | Vestland, Norway | 8 | 1 | 0 | 2003-10-31 | |
| Træ | Vestland, Norway | 1 | 1 | 0 | 2002-11-07 | |
| Valen | Vestland, Norway | 6 | 1 | 4 | 2015-08-28 |