The Nature Conservancy

Graphic that reads: We are a network of partners aimed at catalyzing, coordinating, and implementing marine restoration efforts to recover critical rocky reef and kelp forest habitats, and associated species in California.
PCOR Mission Statement Launched in 2024, the PCOR Initiative is focused on increasing the pace and scale of rocky reef and kelp forest restoration, and associated species. © TNC
Underwater view showing the silhouettes of fish swimming through a kelp forest, their profiles backlit by sunlight penetrating into the water.
Kelp Forest Blue rockfish (Sebastes mystinus) drift below a kelp forest off Monterey, California. © Ralph Pace
Kelp forest from above An aerial view of a kelp forest. © Ralph Pace

A Crisis for our Coast

Over the last decade, bull kelp forest canopy cover has decreased by over 96% in northern California. Kelp forest ecosystems in some locations in central and southern California have experienced significant loss as well, with severe repercussions for biodiversity and local communities.

In 2001, the white abalone became the first marine invertebrate to be listed under the Endangered Species Act. After an outbreak of a marine disease and a subsequent warm water event, more than five billion sunflower sea stars died from 2013 to 2016, resulting in the species being listed as critically endangered by the International Union for Conservation of Nature (IUCN). In response to the loss of this apex predator, native purple urchin populations have increased exponentially, consuming kelp forests at an unsustainable rate. The prospect of more frequent warm water events makes it even less likely that these vital and iconic ecosystems will be able to recover without human intervention.

  • 2001

    White Abalone listed on the Endangered Species List

  • 94%

    Reduction in global Sunflower sea star population in 2013

  • 96%

    Loss of California North Coast kelp since 2014

Recovering Key Species and Habitats

PCOR is focused on recovering key marine habitats and strongly interacting species, including bull kelp forests, sunflower sea stars, & white abalone, while also launching a innovative workforce development program.

Bull Kelp

Creating the largest network of bull kelp restoration sites along the North Coast

Sunflower Sea Star

Establishing a breeding program for sunflower sea stars to support species recovery

White Abalone

Expanding production and outplanting of white abalone to build towards a self-sustaining population in the wild

Workforce Development

Launch a workforce development pilot program to support increased pace and scale of habitat restoration and species recovery efforts

The deep blue water of the ocean meets the rugged, rocky terrain of the California coast.
California’s rocky coast We are working to recover nearshore marine ecosystems by first focusing on key habitats and strongly interacting species. © TNC

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    An Ecosystem-Based Approach: Identifying synergies and opportunities for collaborations among organizations and across different species and habitat recovery efforts

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    Improving Infrastructure: Expanding existing restoration programs by providing significant resources for improved infrastructure and jobs 

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    Data Collection: Integrating systematic data collection across organizations and geographies and building shared protocols 

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    Sharing Resources & Knowledge: Leveraging knowledge, infrastructure, and capacity across the PCOR network

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    Workforce Development: Building workforce capacity by piloting an innovative marine restoration training program

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    Community Engagement: Increasing public awareness of this vital work through community outreach and education efforts

Where We Work

From San Diego to Fort Bragg, we are focused on efforts all over California. Our partner organizations vary in specialties and locations along the California coast and collaborate cross-species and cross-geographies to advance restoration success at an increased pace and scale.

We work in labs, aquariums, local government, universities, federal and state agency offices, and above and below the Pacific Ocean. Click on our locations to learn more about what we are doing across California.

Click on a location to learn more Return