This is a public reporting and information network that tracks the distribution, abundance, and status of this species for the Pacific Coast of the United States.

For this project, volunteers can pick the sites they want to monitor. The majority of the data collected comes from individual Undaria monitoring efforts.

If you have found what you think is Undaria, follow the steps below

• Remove the kelp by grasping it near the bottom (closest to where it is attached)
• Remove it from the water immediately. Do not let water run off the kelp back into the ocean
• Take a photograph
• Note the location and details (i.e. slip number if in marina)
• Do not throw what you think may be Undaria back into the water
• If possible, keep the plant in a plastic bag, and keep it cool
• If possible, press the plant within 2-3 days

Some sites that we have sampled previously include

• Pillar Point Harbor, Half Moon Bay, CA
• San Francisco Marina, San Francisco, CA
• South Beach Harbor, San Francisco, CA