Mini Blue Tide
by Liz Allen
An unusual mini Blue tide after the stormy seas earlier this week. Just 3 Bluebottles, but 11 Porpita, 13 tiny Glaucus sp. (blue sea slug), a few Violet snails (Janthina) and the tiniest Velella I have ever seen!
These creatures living on the surface of the water are called neuston. Most are countershaded blue so when viewed by predators in the air they look deep ocean blue and from underneath they appear silvery.
Another tiny creature - Glaucous atlanticus - washed ashore, sometimes called a sea lizard sea slug, creeps along the sea surface upside down & feeds on Velella & Physalia.
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