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  • Caño Madre Vieja Nature Reserve in the Municipality of Aguada. Photo by Dr. Robert J. Mayer, Vida Marina / Center for Conservation and Ecological Restoration University of Puerto Rico at Aguadilla, and Jean González Crespo, Project Assistant, University of Wisconsin-Madison

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  • The dock at China Champ, San Rafael, California. By Marthature - Own work, CC BY-SA 4.0.

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  • The fuel tanks at the entrance to Pago Pago Harbor. American Samoa, Tutuila Island. Source: LCDR Eric Johnson, NOAA Corps. - NOAA Photo Library