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Creator:: Welch, E. B. (Eugene B.), Litt, Arni, Pederson, G. L., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Resource Type:: Technical Report
Full Text:: IN LAKES OF THE CEDAR RIVER WATERSHED B. Welch, Arni Litt, and G. L. Pederson University of

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
Full Text:: ZOOPLANKTON IN LAKES OF CONTRASTING TROPHIC STATUS -- A PROGRESS REPORT E. B. Welch, G. L. Pederson and R. K

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
Full Text:: -20uq/l P. FINDLEY LAKE .25 P. C . 20 .15 .10 .05 10 u9 P04 - P/1 A HIGH LIGHT B MED LIGHT

Creator:: Taub, F. B. (Frieda B.), U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Resource Type:: Technical Report
Full Text:: STUDIES IN THE WESTERN CONIFEROUS BIOME F. B. Taub University of.Washington, Seattle The objective of

Creator:: Taub, F. B. (Frieda B.), U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: The relationships between inorganic nutrient supply and the first two trophic levels have long been understood in a very approximate manner but the dynamics of such a system cannot be explored adequately by simple arithmetic when nonlinear relationships exist. An exploration of such a system was accomplished by the use...
Resource Type:: Technical Report
Full Text:: NUTRIENT INPUT, ALGAL DENSITY, HERBIVORE DENSITY, AND RESIDUAL INORGANIC NUTRIENT Frieda B. Taub

Creator:: Taub, F. B. (Frieda B.), Palmer, Fred, U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: The feasibility and enumeration studies have led to the following conclusions: The nitrogen fixation studies should be done in 1973, using acetylene reduction technique with some verification by N15. The denitrification studies should be done with N15 technique. The decision to continue more enumeration sampling of nitrogen transforming bacteria should...
Resource Type:: Technical Report
Full Text:: nitri'yine enzymes -Asoararaoinase b Glutaminase -G uanidi r.e, Creatine . Arcinne 0enradinc Enzymes-L

Creator:: Bissonnette, Pam, Taub, F. B. (Frieda B.), U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Macroinvertebrates were sampled on a regular basis from March to October 1973. A relationship between chironomid length and biomass was established. Production equations to be used for these insects are reported. A similar length/weight relationship is presently being explored for the oligochaetes. A proposal is made for calculating their production...
Resource Type:: Technical Report
Full Text:: organism, L is the length, a can be thought of as a density parameter, and b represents the manner of

Creator:: Bissonnette, Pam, Taub, F. B. (Frieda B.), U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Macrobenthos populations of the IBP lakes were sampled during October and November of 1972. Analyses of the samples revealed dominance of chrinomids and oligochaetes in both littoral and profundal regions for at least this time of year. Due to sampling difficulties the oligochaete material was not used for chemical analyses....
Resource Type:: Technical Report
Full Text:: FOOD CHAIN Pamela Bissonnette and Frieda B. Taub University of Washington ABSTRACT Macrobenthos

Creator:: Welch, E. B. (Eugene B.), Spyridakis, Dimitri E., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: A steady-state phosphorus cycle was determined for the stratified period May to November in Lake Sammamish, Washington. A steady-state. condition for this period is considered at this time since data on some important processes are only sufficient to estimate average values for the stratified period. Nevertheless, such a cycle is...
Resource Type:: Technical Report
Full Text:: STRATIFIED PERIOD IN LAKE SAMMAMISH Eugene B. Welch and Dimitri E. Spyridakis Department of Civil

Creator:: Spyridakis, Dimitri E., Welch, E. B. (Eugene B.), U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Aquatic mineral measurements and sediment characterization of the Cedar River basin lakes and streams reveals two largely distinct physical and chemical environments. Near the headwaters of the Cedar River Watershed the composition of lakes and streams reflect adjacent rocks but the effects of forest and agricultural practices and of processes...
Resource Type:: Technical Report
Full Text:: CEDAR RIVER WATERSHED . E. Spyridakis and E. B. Welch University of Washington ABSTRACT Aquatic

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