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Filtering by: Subject Primary productivity (Biology) -- Washington (State) -- Sammamish, Lake

Grazing and production by zooplankton in lakes of contrasting trophic status : a progress report

Creator:

Welch, E. B. (Eugene B.), Pederson, G. L., Stoll, Richard Kenneth, U.S. International Biological Program. Coniferous Forest Biome, and University of Washington

Abstract:

Grazing rates and density of the crustacean zooplankton were measured in Findley and Chester Morse Lakes and Lake Sammamish, Washington. Sample analysis is incomplete at reporting time, thus estimates of production from examination of life stage biomass changes was not possible. Maximum density of crustacean zooplankton was about 10/1 in...

Resource Type:

Technical Report
Phytoplankton productivity and response to altered nutrient content in lakes of contrasting trophic state

Creator:

Welch, E. B. (Eugene B.), Hendrey, George R., Rock, C. A., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington

Abstract:

Lakes Findley, Chester Morse and Sammamish, Washington, are characterized by one major outburst of phytoplankton productivity and biomass (mainly diatoms) with usually no or low fall activity. Vernal outbursts were often delayed in some lakes and years probably by unfavorable climate (snow cover and cloudy rainy conditions). Mean spring-summer productivity...

Resource Type:

Technical Report