Overfishing

Despite the ubiquitous nature of fish, many populations are declining due to industrial fishing practices of the 20th and 21st centuries.

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Freshly cut dorsal fin from a scalloped hammerhead shark held by fisherman with knife.

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Shark Finning: Sharks Turned Prey

A fisherman holds a freshly cut dorsal fin from a scalloped hammerhead shark (Sphyrna lewini). Every year, humans kill an...
An underwater photo of Southern Bluefin Tuna swimming above a fish farm net.

Tunas and Marlins Officially Classified as Threatened

The Southern Bluefin Tuna ( Thunnus maccoyii ) is listed as "critically endangered" on the IUCN's Red List of Threatened Species . If its population continues to decline, the species faces the possibility of...

Reef Sharks Repelled by People

Large numbers of grey reef sharks were observed at Jarvis Island, an uninhabited Pacific island, during the 2010 Pacific RAMP expedition of the NOAA Ship Hi'ialakai . Credit: NOAA Reef sharks rarely get any...
David Barouh displays fresh fish for sale at Seattle’s Pike Place Market

Sustainable Seafood

As a consumer, you can choose what kinds of seafood to buy. Some species are in good supply and make excellent choices. Others have declined dramatically due to overfishing or environmental factors. Choosing those...

Field Notes from the East African Coast

Traditional fishing techniques now involve monofilament nets, with snorkelers diving down to ensure the bigger fish don't get away. Credit: Caine Delacy We began this journey three months ago, a team of scientists and...
Sunset over a fishing net.

Technology and Sea Turtles

Sea turtles may have survived the planetary changes that killed the dinosaurs, but now they are threatened by fisheries. It's estimated that some 4,600 sea turtles are killed by fishing nets and hooks every...
A Hawaiian petrel in flight

4,000 Years of Marine History through the Eyes of a Seabird

A Hawaiian petrel flies over part of its North Pacific feeding grounds. Credit: Photo courtesy of Jim Denny Most people have never heard of the Hawaiian petrel , an endangered, crow-sized seabird that spends...

Helpful Herbivores

Convict surgeonfish are the roaming sheep of the reef but, instead of noshing on grass, they feed on algae. Credit: Michael Webster When snorkeling in the Kahekili Herbivore Fisheries Management Area (KHFMA) in West...
Freshly cut dorsal fin from a scalloped hammerhead shark held by fisherman with knife.

Shark Finning: Sharks Turned Prey

A fisherman holds a freshly cut dorsal fin from a scalloped hammerhead shark (Sphyrna lewini). Every year, humans kill an estimated 100 million sharks. Removing sharks in large numbers can have ripple effects that...
A juvenile Kemp's ridley sea turtle emerges from the nest

Taking the Temperature of the Kemp's Ridley Sea Turtle

Kemp's ridley sea turtles ( Lepidochelys kempii ) often emerge from their nests during the day, which is a rare (and dangerous) thing for sea turtle hatchlings! Credit: Terry Ross ( Flickr ) The...

Shark Girl: Changing Shark Fear to Fascination

Madison Stewart, known to many simply as “shark girl,” is an inspiring young woman with a passion to protect the creatures most people fear: sharks. She’s been diving with sharks since the age of...

From Despair to Repair

Sit down with two veteran marine scientists, Dr. Nancy Knowlton and Dr. Jeremy Jackson, who fell in love with each other and the reefs of the Caribbean 40 years ago. Those reefs are now...
This queen parrotfish scrapes algae from Caribbean reefs with its parrot-like beak.

From Despair to Repair: Protecting Parrotfish Can Help Bring Back Caribbean Coral Reefs

Sit down with two veteran marine scientists, Dr. Nancy Knowlton and Dr. Jeremy Jackson, who fell in love with each other and the reefs of the Caribbean 40 years ago. Those reefs are now...

Good-Bye Gillnet, Hello Shark Recovery!

A thresher shark was killed after becoming stuck in a gillnet. Credit: Brian Skerry Imagine that you're a shark swimming beneath the surface, minding your own business, when—smack!—you swim right into a net. Entangled,...
A pile of bycatch species.

Bycatch: The Cost of Catching What You Don’t Want

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...

What If There Were No Sharks?

What would happen if we let our fear of sharks lead people to kill them all? This is the question Joe Hanson asks in this video from PBS Digital Studios. Find out about how...

Bugs and Slugs: The Hidden Secret to Healthy Seagrasses

Neptune grass ( Posidonia oceanica ) is a slow-growing and long-lived seagrass native to the Mediterranean. Credit: Gaynor Rosier/Marine Photobank Slip into the water along a sheltered coast in nearly any part of the...

Why the Littlest Fish Matter a Whole Lot

A tornado of sardines swirls around diver and photographer Erwin Poliakoff in the Philippines. Credit: Erwin Poliakoff Top predators along the California coast are having a rough year. Recently starving sea lions have showed...

Building Good Mussels

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...

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