Up Next
Back to Show
Changing Seas
Alien Invaders - Trailer
In the waters of the western Atlantic and Caribbean, a voracious alien predator has taken hold. Native to the Indo-Pacific, the invasive lionfish is a major threat to biodiversity and the health of already stressed coral reef ecosystems.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Unlock with PBS Passport
26:42
Scientists study tarpon, bonefish and permit to better understand their behaviors.
Unlock with PBS Passport
26:42
Scientists work to save crocodiles through research and conservation.
Unlock with PBS Passport
26:42
Deep underwater, on a shipwreck near Key West, lives a tiny potential new threat.
Unlock with PBS Passport
26:43
Modern technology is making it possible to correlate dolphin sounds and behavior.
Unlock with PBS Passport
27:13
Scientists experimant to see if giant manta rays are impacted negatively by microplastics.
Unlock with PBS Passport
27:13
Changes to the ocean environment affect the way carbon is cycled through the seas.
Unlock with PBS Passport
27:13
Lake Okeechobee, once the blue heart of Florida, now has putrid mats of blue green algae.
27:18
Discover ways to increase fish production in a sustainable manner.
Unlock with PBS Passport
26:43
Discover what lives beneath the Blue Heron Bridge in Florida.
Unlock with PBS Passport
26:43
Visit the remote Pacific, the islands of Maug - a natural laboratory for scientists.
Unlock with PBS Passport
26:43
Scientists take advantage of manatee gatherings to study them.
Unlock with PBS Passport
26:43
Some scientists are suggesting that ctenophores are the oldest sea animals.