| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| Approx. 9 clumps closely bunched | 2009-07-12 | Bellochantuy Natural harbour among rocks South of Bellochantuy village |
Anchored to bottom. Also in clumps drifting off shore. These clumps seriously fouled my outboard engine. | Sargassum muticum |