| Number seen/Abundance | Date | Location | Comments | Recorded by |
|---|---|---|---|---|
| C | 2005-07-12 | Milford Haven Milford Haven marina pontoons |
common on pontoons and kelp | Judith Oakley |
| O | 2005-07-12 | Neyland marina Neyland marina, Milford Haven |
occasional on kelp | Judith Oakley |
| O | 2005-06-29 | Kingswear marina, Dartmouth, Devon |
occasional on pontoons | Judith Oakley |
| F | 2005-08-02 | Far pontoon, Queen Anne's Battery marina |
Frequent attached to ropes and other ascidians | Judith Oakley |
| 1 | 2005-09-20 | Blackstone Rocks Blackstone Rocks, Wembury Beach |
approx 2cm height and width 1.5cm attached under rock in low shore rockpool | Cat Ridout |
| abundant | 2005-10-26 | marina pontoons, Falmouth marina, Falmouth,Cornwall |
Growing on most pontoon sides | Judith Oakley |
| common | 2006-09-11 | Poole harbour |
Steve Trewhella | |
| 500+ | 01/04/2012 | Deer sound, Orkney sandy bay , eel grass, kelp forest, maerl bed |
penny martin |