| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
found on rocks and in pools at the top of the shore | Ulva intestinalis |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Rockpools mid-shore | Cystoseira tamariscifolia |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
on rocks and in pools mid to low shore | Fucus vesiculosus |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
on rocks mid to low shore | Fucus serratus |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Small stipes on low shore. Some washed up. | Laminaria digitata |
| F | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
In low rockpools and on low sand flats | Sargassum muticum |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
mid to low shore in rockpools | Chondrus crispus |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Rockpools and lower shore | Anemonia viridis |
| F | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
on rocks | Chthamalus montagui |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
on low shore sand flat | Crepidula fornicata |
| C | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Rocks | Patella vulgata |
| C | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Mid to low shore on rocks and in rockpools | Gibbula umbilicalis |
| C | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Mid to low shore in rockpools and on rocks | Gibbula cineraria |
| C | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
mid shore on rocks and rockpools | Osilinus lineatus |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Low water mark on sand | Hydrobia ulvae |
| C | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
on rocks and in rock pools | Littorina littorea |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
On rocks, low shore | Mytilus edulis |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
On rocks, Low shore | Ostrea edulis |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Low pools and shallow pools at low tide | Nerophis lumbriciformis |
| C | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Rock crevices and pools | Actinia equina |
| C | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
On most medium-large hermit crabs | Hydractinia echinata |
| A | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Low shore | Aplysia punctata |
| A | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Low shore sand | Lanice conchilega |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Low water mark on sand low shore sand | Sabella pavonina |
| F | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
low shore sand | Arenicola marina |
| F | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
under rocks | Talitrus saltator |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
mid to low shore | Cancer pagurus |
| F | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
All over shore | Carcinus maenas |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
mid to low shore | Necora puber |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Low shore and shallow water | Pecten maximus |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
low shore and shallow water | Cerastoderma edule |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
low shore | Marthasterias glacialis |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
mid shore rock pool | Psammechinus miliaris |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
on low shore, on worm tubes | Botrylloides leachii |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
low shore | Botryllus schlosseri |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
low shore | Callionymus lyra |
| R | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
low shore on sand | Ammodytes tobianus |
| F | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
rockpools and low shore | Lipophrys pholis |
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
low shore and shallow water | Pholis gunnellus |