Frei ungdomsskole
| Species | Scientific name | 1996 | 2001 |
|---|---|---|---|
| Reker, tanglopper o.a krepsdyr | Crustacea Samlegruppe | 3 | |
| Sjøfugl | Aves Sjøfugl | 2 | |
| Downy Birch | Betula pubescens | 1 | |
| Bladder Wrack | Fucus vesiculosus | 7 | |
| Blåskjell | Mytilus edulis | 5 | |
| Glassmanet | Aurelia aurita | 2 | |
| Grisetang | Ascophyllum nodosum | 5 | |
| Common Hazel | Corylus avellana | 2 | |
| European Bird Cherry | Prunus padus | 2 | |
| White Wagtail | Motacilla alba | 1 | |
| O-skjell | Modiolus modiolus | 1 | |
| Aspen | Populus tremula | 2 | |
| Purpursnegl | Nucella lapillus | 7 | |
| Rowan | Sorbus aucuparia | 2 | |
| Rød brennmanet | Cyanea capillata | 6 | |
| Serrated Wrack | Fucus serratus | 7 | |
| Chanelled Wrack | Pelvetia canaliculata | 6 | |
| Goat Willow | Salix caprea | 2 | |
| Ålegras | Zostera marina | 4 | |
| Albusnegl | Patella sp. | 7 | |
| Alder | Alnus sp. | 2 | |
| Skilpaddesnegl | Tectura sp. | 2 | |
| Strandsnegler | Littorina sp. | 4 | |
| Tare | Laminaria sp. | 6 | |
| Kamskjell | Pectinidae indet. | 1 | |
| Knivskjell | Solenidae indet. | 2 | |
| Rur | Balanidae indet. | 5 | |
| Krabber | Brachyura indet. | 4 | |
| Beinfisk | Actinopterygii indet. | 2 | |
| Molluscs | Mollusca indet. | 2 | |
| Brown algae | Phaeophyta indet. | 5 | |
| Green algae | Chlorophyta indet. | 7 | |
| Red algae | Rhodophyta indet. | 2 |
Sustain.no is provided by the Norwegian Centre for Science Education