When the tide is high, the tubs are lifted and emptied aboard vessel. Dredges and tongs are also used to harvest oysters. See image fish7927.

Image ID: fish7990, NOAA's Historic Fisheries Collection
Location: Washington, Willapa Bay
Credit: NOAA Central Library Historical Fisheries Collection; P. 251 of "Our Changing Fisheries" 1970 Centenary NMFS centenary volume

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