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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.


Take Action with PSI's SSS Sticker Program!

Light Trap Monitoring

Click HERE to learn how you can earn your Ocopus Genius sticker!


*NEW* Middle School Science Curriculum: 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...


What's Blooming in Budd? Click on the Protoperidinium to find out


The 2021 "What's Blooming?" summer season is complete, but PSI will continue sampling year-round for NOAA's SoundToxins plankton monitoring program. View the Final Report by clicking on What's Blooming This Week and learn more about the project here.