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Slip into the water along a sheltered coast in nearly any part of the world and you’re likely to find yourself in an emerald field of seagrass . Like flowering plants on land, seagrasses...
By Emily Frost Throw a message in a bottle into the vast ocean and where does...
In marshlands along the coast of the Gulf of Mexico, it's easy to hear the...
In the Pacific Ocean, four ocean currents merge to form the North Pacific gyre...

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In the ocean, microscopic forms of algae, known as dinoflagellates , can "bloom" into dense patches near the surface, often referred to as "red tides." Some of these harmful algal blooms (HABs) are dangerous, producing toxins...
In the aftermath of the Gulf oil spill, what is the effect of oil on...
Researchers from the SOCAL-10 research partnership study the behavior of...

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The Gulf oil spill is recognized as the worst oil spill in U.S. history. Within days of the April 20, 2010 explosion and...
The Deepwater Horizon disaster has imperiled the ecosystem along the U.S. Gulf Coast. Most oil spills have occurred at the ocean surface. This one, originating at the ocean floor and rising up...
Bonaire, a small Caribbean island just north of Venezuela, is routinely ranked as a top diving destination in the world. But there's something getting in the way of beautiful dives: plastic trash...
These tiny shells are the foraminifera Globobulimina affinis , found on the seafloor throughout the Atlantic Ocean. What makes this foram noteworthy is that it can survive where other forams can't:...
A group of students pick up trash along the coast of Guyana during the Ocean Conservancy's 2012 Coastal Cleanup, which it organizes in countries around the world every year. In 2013, nearly 650,000...
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...
Plastic trash floats in the waters off the Smithsonian's Carrie Bow Cay field station , in Belize. This image is a still taken from a video recorded by Laurie Penland, a Smithsonian dive officer .
Mark Dodd, a wildlife biologist from Georgia's Department of Natural Resources, surveying oiled sargassum seaweed in the Gulf of Mexico after the Deepwater Horizon oil spill in 2010. Learn more about...
Researchers from the SOCAL-10 research partnership study the behavior of orcas (commonly called killer whales) and how they react to sonar and other noisy human activities. The partnership is...
Marine mammals around the world face many challenges due to interactions with people, from overfishing and entanglement to vessel strikes and disturbance from human sounds. Dr. Brandon Southall...
2012 marked the 70th anniversary of a series of World War II battles in the Pacific Ocean and on its islands, which are collectively known as the “Pacific theatre.” While the battles are long over,...
In this view of the Deepwater Horizon oil spill from above in June 2010, you can see bright orange oil floating on the ocean's surface on the left and, on the right, a thin layer of oil reflects the...
Coral reefs are beautiful, vibrant ecosystems that house roughly one quarter of all marine species and provide billions of dollars in products and services to humans each year. But they are also...
Part 1 of a 6-part series describing WHOI's efforts to understand the scope and impact of the Deepwater Horizon oil spill in the Gulf of Mexico. "Oil Spill Pioneers" describes WHOI's four decades of...
The explosion of Deepwater Horizon, an oil-drilling platform roughly 50 miles off the coast of Louisiana, is quickly growing into an environmental disaster that will leave its mark on coastal...
The Exxon Valdez oil spill occurred on March 24, 1989 when an oil tanker grounded on a reef in Alaska’s Prince William Sound. It spilled almost 11 million gallons of crude oil, which reached 1,300...
This four-foot long fish sculpture was created by art students at A.W. Cox Elementary School in Guilford, CT. The purpose of the Rakefish Project is to raise awareness of marine litter among...
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