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The Ocean Blog

Neptune grass ( Posidonia oceanica ) is an ancient seagrass that is unique to the Mediterranean Sea. It is incredibly slow-growing; so slow that scientists estimate one large meadow that is 9.3 miles...
Just like other seahorse species, male weedy sea dragons are the ones to get 'pregnant' and give birth to the babies. To show he is ready to hold eggs, the male wrinkles part of his tail. On this...
This map is based on electronic tagging of Atlantic bluefin tuna ( Thunnus thynnus ) from 1996 to 2007. A team of international researchers officially classified the Atlantic bluefin as endangered in...
Over the past several decades, Florida’s coastal wetlands have been changing. Along the eastern shore, researchers have seen small mangrove trees appearing in areas further north than they usually...
Remotely located in the central Pacific Ocean, south of Hawaii, the Line Islands provide a remarkable research opportunity. The archipelago includes coral reefs reflecting the whole spectrum of...
Happy New Year! We’ve officially hit mid-January, but there is still plenty of time to make those resolutions. If you’ve been putting it off or haven’t come up with a worthy resolution yet, why not...
The year 2010 will likely be remembered as a tragic time for the ocean. Yet, despite the oil disaster in the Gulf of Mexico, I have hope for our ocean’s future. Last week President Obama signed an...
A still from The Changing Sea , part of the 19th Annual Environmental Film Festival in the Nation's Capital.
Algae, like all organisms, normally grow in balance with their ecosystems, limited by the amount of nutrients in the water. But sometimes, certain species of algae reproduce so rapidly that they...
Bonny Schumaker, cofounder of the nonprofit On Wings of Care, flies over the Gulf of Mexico oil spill area every few weeks to survey for wildlife -- and on April 6, 2012, when this picture was taken...
Major oil spills like the 2010 Deepwater Horizon spill are devestating, but aren’t the only way oil gets into the ocean. Nearly 85 percent of oil in U.S. coastal waters comes from runoff (roads,...
A young Kemp's ridley sea turtle ( Lepidochelys kempii ) recovers at the Audubon Aquarium of the Americas, after the 2010 Gulf of Mexico oil spill. Turtles were cleaned and nursed back to health with...
White abalones are slow-moving, algae-eating mollusks. Rapid overharvesting since the 1970s has resulted in white abalones becoming the first marine invertebrate listed as endangered on the...
Dr. Mahmood Shivji explains how shark DNA is used as evidence to prosecute shark fin poachers . What is shark finning? Find out here .
A scientist, Chris Reddy from Woods Hole Oceanographic Institution, collects oil-laden "sand patties" on a Louisiana beach two years after the oil spill. Watch a video of Chris Reddy talking about...
Have you ever gone to your favorite coastal or lakeside beach and instead of having a fun day in the sun you were faced with a trove of trash? How heartbreaking it is to see waters and shorelines...
Dr. Amy Baco-Taylor dives to deep-sea environments to study corals and the invertebrates that live in them. Learn how she became interested in deep-sea corals , and explore more in the multimedia...
It's illegal to hunt threatened species such as the Dusky shark, but still tens of millions of sharks are taken each year for their fins—in high demand as a delicacy in China. Inside his laboratory...
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