Blog – Page 48 – Washington Sea Grant

1961

burrowing shrimp

The carbamate insecticide carbaryl was selected as the primary tactic for burrowing shrimp control in the coastal estuaries of both Washington and Oregon (Lindsay, 1961)

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1961

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Burrowing Shrimp

1960

1960

BURROWING SHRIMP

Burrowing shrimp rendered over 15,000 acres unusable for oyster culture (Lindsay 1961). Washington Department of Fisheries initiates burrowing shrimp control experiments with Sevin (carbaryl), furnace (fuel) oil, orthodichlorobenzene, lindane (gamma-hexachlorocyclohexane) (Lindsay 1961).

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1960

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Burrowing Shrimp

1959

burrowing shrimp

Initial harrowing and rolling trials to crush shrimp and their burrows were conducted in Willapa Bay. (John Wiegardt Jr., pers. comm.)

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1959

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Burrowing Shrimp

1957

major anthropogenic physical disturbance

Columbia River: The Dalles dam completed

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1957

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Major Anthropogenic Physical Disturbance

1954

major anthropogenic physical disturbance

Columbia River: McNary dam completed

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1954

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Major Anthropogenic Physical Disturbance

1949

LEGISLATIVE ACTIONS

The “edible clam law” is repealed by the legislature.

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1949

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Legislative Actions

1947

1947

LEGISLATIVE ACTIONS

Oyster reserve management shifts from Olympia to Pacific oysters (Dumbauld et al. 2011)

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1947

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Legislative Actions

1942

Major anthropogenic physical disturbances

North Jetty Grays Harbor reconstructed.

Columbia River: Grand Coulee dam (168 meters high) completed.

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1942

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Major Anthropogenic Physical Disturbance

1941

1941

SPARTINA

Spartina alterniflora positively identified from Willapa National Wildlife Refuge (Sheffer 1945).

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1940

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1940

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Major Anthropogenic Physical Disturbance

1939

major anthropogenic physical disturbance

Columbia River: North Jetty rehabilitation completed; Jetty A completed to a length of 1.6 kilometers

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1939

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Major Anthropogenic Physical Disturbance

1937

major anthropogenic physical disturbance

Columbia River: Bonneville dam completed

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1937

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Major Anthropogenic Physical Disturbance

1936

major anthropogenic physical disturbance

Columbia River: South Jetty reconstruction completed, 1 kilometer shorter than length in 1913 (Hickson and Rodolf 1950)

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1936

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Major Anthropogenic Physical Disturbance

1935

LEGISLATIVE ACTIONS

Bush and Callow Acts are repealed by the legislature (no additional lands sold).

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1935

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Legislative Actions

1930

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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Shellfish and Cultivation

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