SHELLFISH AND CULTIVATION
Eastern oysters still exist in small numbers in Willapa (Hopkins 1946). 15 growers are importing Pacific oyster seed from Japan (Kincaid 1968).
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Aquaculture Timeline
“Oyster growers have tried various means of defense against these persistent burrowers. But there seems to be as yet no really adequate and at the same time practical method of coping with the marine ‘crayfish.’”
Belle Stevens, “Ecological observations on Callianassidae of Puget Sound.” Ecology 10: 399-404
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BURROWING SHRIMP
Burrowing shrimp are described as a problem for oyster growers; it was hypothesized that the removal of ‘cultch’ substrate during early oyster harvest exposed mud that was subsequently colonized by burrowing shrimp. ‘Boarding’ was used to prevent burrowing shrimp on native oyster Ostrea lurida ground.
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SHELLFISH AND CULTIVATION
Washington Department of Fisheries identifies excess oysters in reserves to sell; oyster growers successfully halt sale from reserves (WDF 1920, Washington State Fish Commissioner Annual Reports, per Brady Blake). Eastern oyster culture crashed, no causative agent found (Kincaid 1968).
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