More Human impacts

Large waves are a draw for surfers, scientists and spectators alike to locations around the world. Changes to the coast and ocean floor as well as sediment flow can change the nature of a wave as it...
Sometimes, a tragic event can become a powerful teaching opportunity. The Deepwater Horizon oil spill in the Gulf of Mexico has the potential to capture students’ attention and stimulate discussion...
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...
This whale is entangled in fishing gear. Entangled whales often need human help to break free from the fishing gear . But the job is hard one that requires handling a small boat near the large (and...
This coral reef in the Western Pacific Ocean was killed by human input of silt and sand from nearby islands reaching the coral reef habitat. More about coral reef ecosystems can be found in our Coral...
A stormy sea lashes the village of Shismaref, Alaska, where the coastline has eroded 30–90 m (100–300 ft) in the past 30 years.
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...
Sharks have a long and impressive lineage. Ancient sharks were cruising the ocean 400 million year ago- long before dinosaurs roamed on land. Relatives of the great white like the giant megatooth...
Mangroves thrive in hot, muddy, salty conditions that would kill most plants. But even these tough trees are threatened by human development. This lone mangrove shoot in South Bimini, Bahamas stands...
Two events made me passionate about deep-sea corals . One was my first submarine dive in a deep-sea coral bed off the Hawaiian island of Oahu. There was an incredibly lush community of corals and...
Dr. Karen L. McKee collects a peat core in a mangrove forest in Belize. It will help her reconstruct how mangroves have changed over the past 8,000 years. Dr. McKee’s research has shown that when...
At the ends of the Earth, life thrives despite extreme conditions. In the Arctic and Southern Oceans, organisms have evolved adaptations to cope with year-round cold and six months of darkness. But...
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...
Grey reef sharks ( Carcharhinus amblyrhynchos ) are among the most versatile and tough predators on a Pacific coral reef, but they are also among the most vulnerable species, as they are threatened...
Happy (early) Independence Day! For many of us in the United States, the 4th of July is a time to celebrate and reflect on our national heritage. In many ways, the U.S. grew up on the water and...
Gulf Coast of Florida tidal flats exposed by an early morning low tide
Salmon are one of the most widely loved varieties of seafood in the world. A ubiquitous alternative to meat and poultry, salmon wear a halo of healthfulness, as they are rich in protein and omega-3...
Imagine: You’re in a small submersible, and you gently settle on the soft muddy bottom at a depth of 12,000 feet. It’s absolutely dark. What will you see when the exterior lights are turned on? Will...
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