Preharvest Shellfish Protection and Marine Biotoxin Monitoring Program
NEW! - Annual Mussel Quarantine - Frequently Asked Questions.
Updated information on quarantines and shellfish toxins is available by calling CDPH's Shellfish Information Line at (800) 553-4133. Additional information about the Preharvest Shellfish Protection and Marine Biotoxin Monitoring Program is available below.
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The Preharvest Shellfish Protection and Marine Biotoxin Monitoring Program (Shellfish Program) is in the Environmental Management Branch in CDPH's Division of Drinking Water and Environmental Management. The Shellfish Program conducts, surveys, classifies and monitors commercial shellfish growing areas in conformance with the National Shellfish Sanitation Program. It also monitors numerous points along the California coastline for marine biotoxins in shellfish and toxigenic phytoplankton in the waters. Warnings are issued or quarantines are established as needed for recreational and commercial shellfish harvesting.
The purpose of the preharvest shellfish activities is to establish sanitary requirements for shellfish growing waters and to regulate the commercial growing and harvesting of shellfish to assure that shellfish are safe for human consumption.
For more information on shellfish-related activities, contact Gregg Langlois by phone at 510 412-4635 or by e-mail to email@example.com, or click here for others (PDF)in the Shellfish Program.
Quarantines and Health Advisories
- CDPH Lifts Warning about Certain Seafood from Ventura County - February 6, 2015
- CDPH Lifts Annual Mussel Quarantine for All Counties Except Ventura - October 30, 2014
- CDPH Warns Consumers Not to Eat Certain Types of Seafood from Ventura County - October 10, 2014
- CDPH Lifts Warnings about Certain Seafood from Monterey and Santa Cruz Counties - July 11, 2014
- CDPH Announces Annual Quarantine of Sport-Harviested Mussels Begins May 1 (PDF) - April 30, 2014
- CDPH Updates Warning about Certain Seafood Caught in Monterey and Santa Cruz Counties (PDF) - April 28, 2014
- CDPH Expands Warning about Certain Seafood Caught in Monterey and Santa Cruz Counties (PDF) - April 10, 2014
- CDPH Warns Consumers Not to Eat Sport-Harvested Bivalve Shellfish from Monterey or Santa Cruz Counties (PDF) - April 4, 2014
- CDPH Lifts Shellfish Health Advisory for Los Angeles County (PDF) - February 19, 2014
- CDPH Lifts Mussel Quarantine and Health Advisories for Humboldt County, Tomales and Monterey Bays (PDF) - January 24, 2014
- Sport-Harvested Mussel Quarantine Lifted Along Most of California Coast (PDF) - October 31, 2013
Phytoplankton Monitoring Program
The CDPH Marine Biotoxin Program coordinates a volunteer-based monitoring effort for toxic phytoplankton along the entire California coastline. Follow the link below for an overview of this unique volunteer effort, an explanation of the importance of phytoplankton monitoring for public health protection, and access to weekly map layers of recent data.
Reports, Other Publications and Links