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4 Episodes 2010 - 2010
Episode 1
Tue, Jun 1, 2010
How do you count two fish, three fish or even a school of fish? In Dry Tortugas National Park, located 70 miles from Key West, Florida, a group of scientists have joined forces to conduct a massive fish census. In this unprecedented collaboration, experts from four different agencies unite to count and analyze fish data from select sites. Changing Seas follows highly-skilled science divers as they determine the size of fish populations in hopes of better understanding how fishing pressures and environmental changes affect populations of marine resources within the park.

Episode 2
Tue, Jun 8, 2010
Bottlenose dolphins are a beloved Florida icon. But recent studies show disturbing signs of immune system dysfunction and disease plaguing this charismatic mammal. These problems might be linked to legacy contaminants and other pollutants which bio-accumulate up the ocean food chain. For decades, toxic chemicals have made their way into the oceans, leaving fish and marine mammals vulnerable. As sentinels of ecosystem health, dolphins potentially hold clues to environmental hazards that could impact humans. Changing Seas visits the world's longest running dolphin research program and other marine mammal centers for a better understanding of the silent threats lurking beneath the waves.

Episode 3
Tue, Jun 15, 2010
They are an ancient species of flowering plants that grow submerged in all of the world's oceans. Seagrasses link offshore coral reefs with coastal mangrove forests. Today, these "prairies of the sea," along with mangroves, are on the decline globally. Scientists fear the diminishing vegetation could result in an ecosystem collapse from the bottom of the food chain all the way to the top. Changing Seas joins experts in the field as they work to restore Florida's important mangroves and seagrasses. Known as "hotspots of biodiversity," seagrasses and mangroves attract and support a variety of marine life. However, worldwide damage and removal of these plants continue at a rapid pace. Changing Seas travels along Florida's coastline to get a better understanding of the significant roles mangroves and seagrasses play within the state. Can biologists prevent a negative ripple-effect throughout the marine food web before it's too late? How will rising sea levels impact these plants as well at the communities that depend on them?

Episode 4
Tue, Jun 22, 2010
In the turquoise blue waters of the Florida Keys, a new attraction is drawing scuba divers from around the world: The USNS General Hoyt S. Vandenberg. The Vandenberg is the world's second largest intentionally sunk shipwreck. Prior to being sunk, this mighty ship transported troops to the battlefields of World War II, carried European refugees to distant shores, and later helped win the Cold War. Left abandoned for years as part of a ghost fleet, the Vandenberg has at last found her final resting place - seven miles off Key West, in the Florida Keys National Marine Sanctuary. In her last mission as an artificial reef, this massive ship is already attracting a variety of fish and other marine life. Now, natural resources managers are trying to determine what impact this artificial reef has on fish populations and the health of the surrounding natural reefs.