Fouling Organisms (IMAGE)

Smithsonian

Fouling Organisms

Caption

During dry years, solitary tunicates (left) dominated San Francisco Bay's fouling community. But when wetter years poured more freshwater into the Bay, colonial tunicates (right) took over.

Credit

Andrew Chang

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This photo is available for noncommercial, educational use as long as credit is given to the source listed, in accordance with the Smithsonian Terms of Use: https://www.si.edu/termsofuse

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