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Mussels in the Rocky Intertidal

By Alaska Science Center
Blue mussels and yellowish white barnacles attached to rocks at low tide.
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Detailed Description

A cluster of mussels (Mytilus spp.) and barnacles at one of five rocky intertidal sampling sites in Katmai National Park and Preserve. An annual assessment of mussel size and density allows scientists to quantify change in communities from sheltered rocky shorelines.

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Public Domain.

Photo taken by Laura McDuffie, U.S. Geological Survey

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