Intertidal Gathering

With favorable space at a premium, and intense competition and predation, gathering is a way of life in the intertidal.

Big rocky tide pool, blurry, in the background
Acorn barnacles (foreground) and Pelvetiopsis dominate this high
intertidal scene
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A gathering of gulls waits impatiently for me to move on from the Mola mola carcass they were feeding on.

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A typical intertidal gathering on a vertical tide pool wall

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Note: Little brown barnacles, Chthamalus dalli, featured in the image at the top of this post, don’t pack as tightly as some other barnacles, but they still gather in favorable spaces.

Gathering