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

Slide 1 Slide 2 Slide 3 Slide 4 Economic Impacts Slide 1 Slide 2 Slide 3 Slide 4 Harmful Algal Blooms Slide 1 Slide 2 Slide 3 Slide 4 Mussel Power Slide 1 Slide 2 Slide 3 Slide 4 New Production Technologies

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 Higlights


Determining Social and Ecological Carrying Capacity for Shellfish Aquaculture in South Puget Sound

PSI and partners are conducting research to model ecosystem interactions and determine social and ecological needs and impacts of shellfish aquaculture.

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Pet Waste: What's the Problem?

These small sources of pollution can have a big impact. PSI works with South Sound residents to raise awareness of the risks associated with bacterial contamination and encourage pet owners to pick up after their animals.

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Reducing Shellfish-related Illness

PSI investigates post-harvest methods to lower vibrio levels in oysters and other bivalve shellfish to protect human health and reduce the need for vibrio-related shellfish bed closures.

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Contact Us

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

Oyster Seed Research and Training for Shellfish Farms

New project for PSI and partners:

Oyster Seed

High mortality events create unstable supply for shellfish growers. PSI and partners streamline seed rearing methods and create opportunities for small and mid-size farms to grow their own. Learn more about our newest project.


PSI Releases Public Opinion Report

Public Opinion of Shellfish Farming A report on the public perception of shellfish aquaculture in select counties in Washington, Oregon and California

Public Opinion of Shellfish Farming

View the report (1.6Mb PDF)


Shellfish & Nutrient Removal

Recent and continuing PSI projects evaluate the use of mussels as a strategy for mitigating anthropogenic nutrient loads. PSI and partners developed innovative uses for the mussels: Surf to Turf Compost! Learn more


2015 Priorities

West Coast Shellfish Research Needs & Priorities