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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

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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Seed Health

Oyster Seed Research & Training

PSI and partners streamline seed rearing methods and seed health diagnostics for small and mid-size farms to grow their own.

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Contact Us

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


Comparative Habitat Study: Native Eelgrass and Oyster Culture in West Coast Estuaries

Eelgrass Final Report




On October 16th, results from the South Sound BioBlitz for Nearshore Invertebrates was presented at the South Sound Science Symposium in Shelton, WA (pdf). View the final species list or learn more about the event here... Stay tuned for future opportunities with PSI!



Garden of the Salish Sea Curriculum

PSI is the parent organization for Garden of the Salish Sea Curriculum, based in Whatcom County, WA directed by Julie Hirsch. This K-12 environmental science program uses shellfish as a vehicle to teach marine science and water quality issues using lab and field-based activities. Learn more...