On the Line is a NOAA Fisheries podcast about marine fish and wildlife and their ocean habitats, with stories told by the people who study, manage, and protect these valuable resources on behalf of the American public.  Each podcast comes with photos and a short Web feature story.

Saving the Pacific Leatherback Sea Turtle 
The Leatherback is a most unusual species of sea turtle. In the Pacific, it's also among the most endangered.


Unmanned Aerial Vehicle Offers A New View 
For the first time, scientists have used an unmanned aerial vehicle to photograph killer whales from above. This gives scientists a new way to monitor killer whale health and reproduction while giving us all a stunning new view of the species.

Gray Calves Born in Big Numbers
NOAA Fisheries scientists keep track of how many gray whale calves are born each winter, and it looks like this was a banner year for calf production.

The Giant Oarfish
A NOAA biologist who necropsied this strange and mysterious fish shares his theory of how two of them ended up on the beach.

Saving Coho Salmon: It's all about the Timing
As NOAA biologists work to re-establish runs of coho salmon in California, they aim to bring back some of the diversity of the wild populations that once thrived there.

Sea Lion Stranding: The View from the Rookery
NOAA Fisheries wildlife biologist Sharon Melin describes conditions at the sea lion rookeries on the Channel Islands, where pups are going hungry because unusually warm water along the Pacific coast has made it more difficult for their mothers to find food.

Whales & Dolphins in a Noisy Ocean
Many marine mammals use hearing to find their way through the world. But parts of the ocean are filling up with man-made noise, and that has the potential to leave them partially blinded. The CETSOUND project might help.

Feeds of the Future
To ensure a sustainable future for aquaculture, scientists are developing alternative aquaculture feeds that use few or no ingredients from wild caught fish.

Killer in Distress
Scientists are working to understand why the population of Southern Resident killer whales isn’t rebounding, and what we can do to help them recover.

To Protect Fin Whales, Scientists work on their Listening Skills
Scientists map out distinct populations of endangered fin whales based on differences in their songs.