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Shellfish Research and Information
Services for the U.S. West Coast

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Ecosystem Services

On the Farm

Improve Water Quality

Ecosystem Services Photo

Learn more about how shellfish can improve water quality and provide important habitat for other marine organisms.

On the Farm Photo

What does it take to be a shellfish farmer? Watch this video on the ins and outs of growing and harvesting shellfish in Puget Sound. Watch Video.

Improve Water Quality Photo

Learn 5 simple steps you can take to improve water quality in your area. Learn more...

Project HigHlights


Regional Eelgrass/Shellfish Consortia

In collaboration with shellfish farms along the west coast, we will assess the interaction of eelgrass with various oyster culture systems, and the ecological functions of these habitats for managed fish and invertebrate species.

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OA Oysters

OA Vulnerability Assessment

Ocean Acidification is occurring with greater intensity in the Pacific Northwest than anywhere else in the world. OSU and PSI team up to identify the cost of and pathways to adaptation for regional shellfisheries and stakeholders.

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Rock Scallop Biotoxin Monitoring

Our team will assess rock scallop uptake, tissue concentration and detoxification rates of naturally occuring toxins that can cause Paralytic Shellfish Poisoning (PSP) in humans, an essential step in the process toward certification.

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Sea Cucumber

Growing Native Sea Cucumbers

PSI and partners are developing polyculture methods for the native, giant red sea cucumber, Parastichopus californicus as a nutrient recycler and promising species for U.S. export.

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Off-Bottom Oyster Production

Our project team is measuring effects of off-bottom oyster production on the local environment and neighboring shellfish operations in WA state.

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Contact Us

Visit our contact page for general inquiries, location information, and for individual staff email.

Science Fair Support!

Calling All Scientists!

Science Fair Support

PSI is offering mentoring and up to $1,000 in financial support to K-12 students participating in the Regional and Washington State Science & Engineering Fairs! Click HERE to learn more and see if you qualify. The application deadline is October 17th so apply now!


Keep Debris Out of the Sea!

International Coastal Cleanup

Staying close to home? Conduct your own personal neighborhood cleanup anytime during September and October. Submit your data using an ICC Trash Data Form or the CleanSwell app. Check out PSI's Trash BINGO card for kids (at heart)! For more tips on integrating a cleanup into your virtual classroom, contact


Tiny Crabs, Big Impacts!

Light Trap Monitoring

Follow our team of biologists as they search for baby Dungeness crabs in South Sound! Learn more here...


Report your mortality event (pdf)

Oyster Seed

Recent, large-scale summer mortality events have been occurring in our region. Reporting your mortality event(s) will help PSI and regional scientists target possible causes. Contact us for services that may be available.