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Forensics is a key tool for enforcing the laws and treaties that protect marine animals. Investigators in a recent case used DNA analysis to track down and convict sea turtle poachers. All seven species...
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Extinction is a real possibility for three species of tunas. That’s one of the...
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All over the world, people have been witnessing gigantic blooms of tens of...
Watch as Dr. Dallas Alston and a team of researchers study the effects of...

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The Oculina deep-sea coral reef at top has not been disturbed by humans—but trawling has devastated the one at bottom. When fishermen trawl, they drag a net along the seafloor, destroying everything in its path. Only about 10...
In recent years, blooms of jellyfish, such as these moon jellies ( Aurita...
One of the biggest threats to sea turtles, such as the loggerhead turtle (...

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by Caty Fairclough Sharks have been feared hunters ever since people first observed them swimming in the vast ocean. Yet...
The Gulf of Mexico shrimp trawl fishery scoops up a lot of unwanted fish along with the shrimp. For every pound of shrimp caught, more than 4 pounds of other fish species were caught as bycatch and...
Reef biologists over a certain age are haunted by memories of what glorious places Caribbean reefs once were. In our youth we studied them for all sorts of reasons but scarcely thought about reef...
The impacts of derelict fishing gear on the Northwest Hawaiian Islands coral reef ecosystem are numerous. A primary effect of reef entanglement is structural damage to the coral substrate that...
Forensics is a key tool for enforcing the laws and treaties that protect marine animals. Investigators in a recent case used DNA analysis to track down and convict sea turtle poachers. All seven...
Since 1987, researchers have been tracking Phoenix, one of the last North Atlantic right whales living today. It's estimated that there are fewer than 500 of these whales alive today. Read her story...
In recent years, blooms of jellyfish, such as these moon jellies ( Aurita aurita ) in the Chesapeake Bay, have become more common around the world for a number of different reasons . One result of...
by Caty Fairclough Sharks have been feared hunters ever since people first observed them swimming in the vast ocean. Yet today, sharks are declining rapidly on a global scale because humans have...
Cashes Ledge is an underwater mountain range off the New England coast, which is home to a great diversity of life. Because the rocky and steep peaks almost reach the surface in some areas, it is...
Millions of sharks are caught each year for their dorsal fins, which are prized for shark fin soup. Top predators like sharks are important to maintaining biodiversity, and their removal can have...
Who should fear whom? Less than ten humans are killed by shark attacks. Yet millions of sharks are killed each year by humans. More about the great white shark can be found in our Great White Shark...
When people go out fishing, they often have something specific in mind, but it's very difficult to catch only what you're looking for. Pulling a net through the water or across the sea floor catches...
Tuna caught in the Indian Ocean show the huge scale of commercial fishing. More about sustainable seafood can be found in our Sustainable Seafood feature story.
A new wave of farming has come to the ocean. It’s called aquaculture. And it’s a way to grow and harvest mussels and other healthy, tasty types of seafood. Explore other videos that capture the...
CREDIT: Wikimedia User “Fisherman” Because of consumer demand for sashimi (a fresh raw seafood dish), the fishing pressure on Atlantic bluefin tuna is extraordinarily high. The sale of a single...
"We too are sea creatures," entreats ocean explorer Sylvia Earle in this beautiful short film, which calls for protecting the ocean and, in particular, for ending destructive fishing practices. It's...
Guitarfish, rays, and other bycatch are tossed from a shrimp boat in La Paz, Mexico in 2006. Many species caught as bycatch are never monitored, and, insofar as they have important roles in the...
Bycatch, the name given to fish and other ocean animals that are caught unintentionally, is a huge problem. Scientists and fishermen are joining forces to design new nets that catch only the targeted...
These statistics come from a United Nations Food & Agriculture Organization 2007 review of the status of global fish stocks. Learn more in our Sustainable Seafood section .
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