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Large container ships at port, discharging ballast water in the Port of Oakland
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Reducing the Risk of Transporting Invasive Species

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Home is where the hull is: Since the dawn of seafaring, humankind has had to deal with pesky creatures, such as barnacles, that “foul” ship hulls and boat propellers like this one.
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No Fouling Around

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A photo of an oyster cage, out of the water, covered in sea squirts.
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Alaska Vulnerable to Invasive Species from Warmer Waters

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A coral has just spawned. Each of the hundreds of polyps releases a small pink bundle of sperm and eggs.
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A Tale of Sex and Stress in the Ocean

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A red and yellow gyotaku-style fish print of a flounder
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Educational Uses of Gyotaku or Fish Printing

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Sargassum forms dense clumps up to the size of a beach ball that slowly rotate as they drift.
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Too Much of a Good Thing—the Atlantic Sargassum Belt

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a woman's hands close a tin of sardines near a pile of empty cans
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Nimble Fingers: the Women Behind Maine’s Canneries

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Ocean Portal summer 2011 intern Brandon Adkins poses next to the aquarium in the Smithsonian's Sant Ocean Hall.
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An Intern Explores Ocean Careers

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Cover of the Book Citizens of the Sea
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Citizens of the Sea

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A diver collects water samples.
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Ocean Sampling Day – Taking the Pulse of the World’s Oceans

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