Segments in this Video

Oceans: Introduction (01:06)

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This segment orients viewers to Dr. Sanjayan's exploration of Earth's last wild frontier. (Sponsors)

Palmyra, Pacific Ocean (02:37)

The island is 3,000 miles from the nearest continent. Scientists made a discovery about how our oceans once worked; the reef contains five times more sharks than most reefs.

Counting the Sharks on Palmyra (03:56)

Marine scientist Kydd Pollock waves fish in the water; Sanjayan marvels at the amount of sharks. Sanjayan explains the food chain in the ocean.

Human Relationship with the Sea (02:53)

Dr. Jeremy Jackson explains a significant factor that changed our oceans. He shows photographs of sports fishermen taken over the decades.

Human Impact on the Oceans (04:02)

Jackson mapped the changes in a productive predator filled area and projected it into the future. He explains the rise of slime. Around the world, fishermen annually catch nearly half a million tons of jellyfish.

Fish Migration (03:44)

Some tuna will travel 12,000 miles in a year. Yellowfin tuna are warm blooded and one of the ocean's top predators. The number of migrating tuna has declined. Fishermen locate a school of tuna and fit the fish with a tracking device.

Tagging Ocean Predators (02:00)

Scientists have gathered 300,000 days' worth of data; patterns emerge. Scientists monitor the highway of life that shifts on an annual cycle.

Pacific Herring Spawning Hot Spot (02:27)

Sanjayan reviews a technological map of ocean predators. Sea lions, orca, and humpback whales followed the herring. Rebuilding the diversity of fish stocks is a major step in fending of the rise of slime.

Bimini, Bahamas (02:14)

Lemon sharks come in from the deep to give birth among the mangroves. Dr. Samuel Gruber, the world's leading expert on lemon sharks, monitors their population.

Lemon Shark Birth (05:10)

Gruber and his researchers hold a shark as she gives birth to two pups; she births the remaining on her own.

Lemon Shark Pups (03:01)

Researchers take the pups to the mangrove study sight. Gruber discovered that the sharks imprint on the mangroves from the day they are born. Learn how the sharks help the ecosystem.

Coral Reefs (02:41)

Coral reefs make up less than 1% of the ocean but support 25% of all marine life. The bumphead parrotfish and other grazing fish help the coastal environment. Climate change can cause corals to bleach.

Defense Against Ocean Temperature Changes (01:59)

Scientists study the coral reefs at night with an ultraviolet light; the coral fluoresces. Reefs with more fluorescent coral cope better with rising sea temperatures.

Key Largo, Florida (03:34)

Reefs suffer the effects of a warmer ocean. Scientists attempt to engineer a more robust ecosystem. Jackson would be happy with an artificial ecosystem that contains a significant component of species that do different jobs.

Sea of Cortez, Mexico (04:13)

Scientists farm fish in an unexpected way; they have a futuristic plan to keep the Earth fed. Sanjayan explores the deep ocean sphere.

Sustainable Feeds (01:48)

Scientists in the Sea of Cortez face the challenge of fish feeding at their fish farm. Humans eat more farmed fish than wild fish. Human intervention in the oceans is increasing.

Pier 5, New York City (03:02)

Kate Orff has a plan that will allow the ocean to reclaim the industrial landscape. She wants to cultivate oysters in the bay.

Wasteland becomes a Vibrant Neighborhood (03:35)

As water clears of pollutants in the New York harbor, more diverse life can come in. Orff reflects on design helping humans coexist with animals.

Humans as Part of Nature (01:38)

Sanjayan reflects on the vision of a natural world tended by humans that supports us.

Credits: Oceans (00:28)

Credits: Oceans

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Oceans

Part of the Series : EARTH A New Wild
3-Year Streaming Price: $169.95

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Description

Starting on the most pristine reef on Earth, home to more predators than prey, Dr. M. Sanjayan draws on his own ocean experiences to reveal a vibrant community of scientists, engineers and fishermen who are providing solutions that can help restore the oceans in astonishing ways. He is aware of the vast scale of the threat to our oceans, but standing in the water playing midwife to a large lemon shark is just one of the moments that gives him hope that we can turn around our influence on the most important habitat on Earth. Distributed by PBS Distribution.

Length: 58 minutes

Item#: BVL93434

Copyright date: ©2014

Closed Captioned

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