| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| Hundreds over a period of 1hr | 2009-08-31 | NE Biscay Large area app Between Nourmoutier/Chaussee des Boeufs and Ile d\\\'Yeu bounded by 46o58\"/46o46\"N 002o25\"/002o22\"W |
Encountered extremely widespread shoal (?) of mainly rhizostoma octopus. Density up to a dozen or more visible within about 10sq metres of boat on each side. Sizes various from app 0.25m body to 1m. Colours various, mainly orange or pink. Also some moon jellyfish distributed among them, sizes mainly around 20cm. The shoal was spread over several square miles. We were motor-sailing in light airs with a 1m swell from the NW. Sea temp measured via sonar transducer at app 64f. Main direction of jellyfish movement was to NE. | Rhizostoma pulmo |
| Scattered among rh.oct | 2009-08-31 | NE Biscay Large area app Between Nourmoutier/Chaussee des Boeufs and Ile d\\\'Yeu bounded by 46o58\"/46o46\"N 002o25\"/002o22\"W |
Aurelia aurita |