Two econometric models were developed to forecast consumption,
production, and price of hardwood lumber, and removals and price
of hardwood sawlog stumpage. Four eastern U.S. regions were represented
in the models. Hardwood lumber consumption by manufacturing,
shipping, residential construction, and nonresidential construction
industries was recognized. Hardwood sawlog stumpage removals from...
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...
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...