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Fig. 4. Biofouling of byssal threads exposed to field conditions for three weeks
during the summer decay experiment. (A) Compound microscope photograph of
distal region and adhesive plaque of a byssal thread (at 16x
magnification). Note the extensive biofouling by chain-forming diatoms. (B)
SEM image of distal portion of a byssal thread in which a diatom is partially
embedded. Image provided by Shanna Brazee.