Area beaches have been closed for shellfish harvesting


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The Washington State Department of Health announced this week that – due to Paralytic Shellfish Poison (PSP) being detected in shellfish along beaches from Alki south to the Pierce County line – recreational shellfish harvesting has been closed.

The closure includes all species of shellfish including clams, geoduck, scallops, mussels, oysters, snails and other invertebrates; the closure does not include crab or shrimp. Crabmeat is not known to contain the PSP toxin, but the guts can contain unsafe levels. To be safe, clean crab thoroughly and discard the guts (“butter”). Working with partners, Public Health – Seattle & King County is posting advisory signs at beaches warning people to not collect shellfish.

Here’s more info from DOH:

Commercial beaches are sampled separately and commercial products should be safe to eat.

Anyone who eats PSP contaminated shellfish is at risk for illness. PSP poisoning can be life-threatening and is caused by eating shellfish containing this potent neurotoxin. A naturally occurring marine organism produces the toxin. The toxin is not destroyed by cooking or freezing.

A person cannot determine if PSP toxin is present by visual inspection of the water or shellfish. For this reason, the term “red tide” is misleading and inaccurate. PSP can only be detected by laboratory testing.

Symptoms of PSP usually begin 30-60 minutes after eating the contaminated shellfish, but may take several hours. Symptoms are generally mild, and begin with numbness or tingling of the face, arms, and legs. This is followed by headache, dizziness, nausea, and loss of muscle coordination. Sometimes a floating sensation occurs. In cases of severe poisoning, muscle paralysis and respiratory failure occur, and in these cases death may occur in 2 to 25 hours.

If symptoms are mild, call your health care provider or Washington Poison Center (800-222-1222), and Public Health (206-296-4774). If symptoms are severe, call 911 or have someone take you to the emergency room immediately.

Recreational shellfish harvesting can be closed due to rising levels of PSP at any time. Therefore, harvesters are advised to call the DOH Biotoxin Hotline at 1-800-562-5632 or visit the Shellfish safety website before harvesting shellfish anywhere in Puget Sound.

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