| Piggkorstroll (Marthasterias glacialis) | | 2022-06-10 | 2022-06-10 | | Dusavik (Rogaland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2021-08-26 | 2021-08-26 | | paradisbukta (Agder, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-09-04 | 2020-09-04 | | Tofte (Akershus, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 | | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 | | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 | | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 |  | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-12 | 2020-06-11 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2020-06-11 | 2020-06-10 | | Skattval (Trøndelag, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-08-21 | 2019-08-21 | | Rotvoll/Leangen fjæra (Trøndelag, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-12 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-12 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-12 | | håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-13 | 2019-06-13 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-12 | 2019-06-11 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-12 | 2019-06-12 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-12 | 2019-06-11 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-12 | 2019-06-12 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-06-12 | 2019-06-11 | | pollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2019-05-23 | 2019-05-23 | | Kloster Halsnøy (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2018-06-12 | 2018-06-12 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2018-06-07 | 2018-06-07 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2018-06-07 | 2018-06-07 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2018-06-07 | 2018-06-06 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2018-06-06 | 2018-05-07 | | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2017-06-02 | 2017-06-01 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2017-06-02 | 2017-06-02 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2017-06-01 | 2017-05-31 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2017-06-01 | 2017-06-01 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-10-23 | 2016-10-23 | | Drøbak (Akershus, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-10-20 | 2016-09-21 | | Drøbak (Akershus, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-10-20 | 2016-10-20 | | Marinbiologisk stasjon, Espegrend (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-06-10 | 2016-06-09 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-06-09 | 2016-06-09 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-06-09 | 2016-06-09 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-06-09 | 2016-06-08 | | Håkonshellapollen (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2016-06-02 | 2016-06-02 | | Håkonshella (Vestland, Norway) |
| Piggkorstroll (Marthasterias glacialis) | | 2015-10-07 | 2015-10-07 | | Drøbak (Akershus, Norway) |
Sustain.no is provided by the Norwegian Centre for Science Education