Up Next
Back to Show
Changing Seas
Billfish: Battle on the Line? - Trailer
The unique oceanographic conditions of the eastern tropical Pacific make the area one of the best spots in the world for big game anglers to hook billfish. But intense pressures from commercial fishing operations have taken their toll on the numbers of sailfish and marlin in the region. Researchers are studying the animals to provide the data necessary to protect populations from further decline.
Support Provided By
Unlock with PBS Passport
27:14
Scientists studying the coastal Everglades make some perplexing discoveries.
Unlock with PBS Passport
27:01
The Cayman Islands are home to the last great reproductive population of grouper.
Unlock with PBS Passport
29:33
Scientists work to identify and link a devastating coral disease to a human pathogen.
Unlock with PBS Passport
27:16
Scientists use satellite tags and DNA forensic tools to track tiger sharks.
Unlock with PBS Passport
26:47
Oceanographers continue to study the long term effects of an oil spill.
Unlock with PBS Passport
26:46
A group of scientists tests sea sponges for potential anti-cancer properties.
Unlock with PBS Passport
26:46
Explore the emerging science of coral reef restoration.
Unlock with PBS Passport
26:49
The invasive lionfish is a major threat to biodiversity and a stressed coral reef.
Unlock with PBS Passport
26:48
Examine the important role seagrasses and mangroves play in the ocean’s web of life.
Unlock with PBS Passport
26:51
Take a look at the health of the bottlenose dolphin.
Unlock with PBS Passport
26:51
The Changing Seas crew shadows a team of research divers in Dry Tortugas National Park.
26:45
Scientists develop sustainable aquaculture methods to take the pressure off wild fish.