back button photo of macroalgae

72 dpi image

Multicellular or macroalgae are limited to areas of shallow water and rocky shores; the algae need light for photosynthesis, and a solid substrate for attachment sites. Wave action, dessication during low tide, and grazing by herbivores are all potential threats to these plants.
(This copyrighted image is used by permission of the photographer and not intended for any type of commercial/non-profit use. Please contact Kip Evans at for more information.)

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