Segments in this Video

Introduction: Episode 1: The Cordell Bank: A National Treasure (02:59)


The California coastline is famous for its beauty. This film examines the shallow bank at the end of the Continental Shelf.

Cordell Bank (03:54)

In 1853, George Davidson discovered the bank 20 miles west of the Point Reyes Lighthouse. In 1977, divers begin recording the bank's biodiversity. The National Oceanic Atmospheric Administration establishes the Cordell Bank National Marine Sanctuary in 1989; officials expand the sanctuary in 2014.

Ocean Health (08:02)

Experts regularly conduct research at sea as part of ACCES. The U.S. Pacific coastline is one of four major upwelling regions. Upwelling releases nutrients that nourish phytoplankton that then fuels the marine food chain.

Global Stressors (06:26)

Concerns about the health of the ocean include lower dissolved oxygen levels in the water and ocean acidification. Experts use various tools to measure health and discuss rising surface temperatures and stressor effects.

Cordell Bank National Marine Sanctuary (04:26)

Much remains to discover in the sanctuary. Expert divers explore the bank and document underwater life; diving requires a specialized skill set. The public needs to know that places like the bank exist and that their protection has a meaningful impact.

Credits: Episode 1: The Cordell Bank: A National Treasure (Changing Seas, Season 11) (01:13)

Credits: Episode 1: The Cordell Bank: A National Treasure (Changing Seas, Season 11)

For additional digital leasing and purchase options contact a media consultant at 800-257-5126
(press option 3) or

Episode 1: The Cordell Bank: A National Treasure (Changing Seas, Season 11)

Part of the Series : Changing Seas (Season 11)
DVD (Chaptered) Price: $129.95
DVD + 3-Year Streaming Price: $194.93
3-Year Streaming Price: $129.95



California’s north-central coast is famous for its natural splendor. Only fifty miles northwest of San Francisco’s Golden Gate Bridge, yet light years away from the hustle and bustle of the human world, lies a magical underwater island few people have ever heard of. Protected inside a National Marine Sanctuary, the Cordell Bank is a hotspot for marine life. Cold, nutrient-rich waters welling up from the deep fuel the base of the marine food chain in the region, which in turn feeds birds, sea turtles, and marine mammals who travel from thousands of miles away. And while the sanctuary is actively protecting local resources, it still faces global stressors that might threaten the area in the future. Scientists are studying the potential impacts of ocean acidification and lowered dissolved oxygen levels caused by climate change.

Length: 28 minutes

Item#: BVL283019

ISBN: 979-8-88678-500-5

Copyright date: ©2019

Closed Captioned

Performance Rights

Prices include public performance rights.

Not available to Home Video and Publisher customers.