Marine Endolithic Cyanobacteria - 10

An intertidal bioerosional notch around the small island "tug-boat" near Lee Stocking Island, Exuma Cays, Bahamas. Dense populations of endolithic cyanobacteria and rhodophytes attract sea urchins, snails and chitons, which scrape the rock together with its endoliths, effectively deepening the notch at the leverl of highest grazing activity.

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