Razor clams no! but bay clams yes ?

[BobberDawg]

Is this correct and can any one tell me why or how the bay clams are not affected the same as the razors are ?

 

[rogerdodger]

Is this correct and can any one tell me why or how the bay clams are not affected the same as the razors are ?

from the Oregon Dept. of Agriculture Shellfish website:

"Recreational harvest of bay clams is open from Tillamook Head (south of Seaside) south to the California border (this does not include razor clams). "

http://www.oregon.gov/ODA/programs/FoodSafety/Shellfish/Pages/ShellfishClosures.aspx

 

[BobberDawg]

Rodgerdodger do u know why the bay clams are not affected with the bi toxin the razors get ?

 

[rogerdodger]

Rodgerdodger do u know why the bay clams are not affected with the bi toxin the razors get ?

yeah, DA seems to occur in higher concentrations in the ocean, accumulates more in Razors and dissipates slower...Mussels get really high DA during a closure, then flush it out, Razors seem to in part just grow and thus dilute the DA in their tissues...

ODFW website: Domoic acid:
......
Razor clams tend to accumulate more domoic acid than bay clams and retain it longer. Mussels can accumulate high levels but it depurates in a matter of weeks.
Domoic acid isn’t believed to hurt razor clams themselves.
Depuration rates of domoic acid in razor clams vary depending upon the size of the clam. Toxicity in young clams can be reduced with clam growth, (juveniles grow rapidly, increasing body mass) reducing toxins quickly; whereas in older clams mass increases slowly, reducing toxin levels slowly.
Due to the diatoms preference for oceanic areas, blooms containing domoic acid have more effect on oceanic areas than estuarine (bay).
Freezing, cooking or other treatment has no effect on the toxin level.

http://www.dfw.state.or.us/MRP/shellfish/razorclams/biotoxins.asp

 

[BobberDawg]

Thanks for all the great info really appreciate it !!!