Record Display for the EPA National Library Catalog


Main Title Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 3. The Dependence of Growth Rates on Internal Phosphorous Pool Size (Journal Version).
Author Auer, Martin T. ; Canale, Raymond P. ;
CORP Author Michigan Technological Univ., Houghton.;Environmental Research Lab.-Duluth, MN.
Year Published 1982
Report Number EPA-R-806600; EPA-600/J-82-374;
Stock Number PB83-239756
Additional Subjects Ecology ; Algae ; Phosphorus ; Water pollution ; Lake Huron ; Oxygen ; Respiration ; Mathematical models ; Nutrients ; Carbon ; Photosynthesis ; Biomass ; Measurement ; Reprints ; Cladophora golmerata
Library Call Number Additional Info Location Last
NTIS  PB83-239756 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
The relationship between growth rate and internal phosphorus pool size was examined using field populations of Cladophora golmerata from Lake Huron. Algal samples, representing a range of internal phosphorus concentrations, were harvested from the lake and used for laboratory measurements of growth. Rates of net photosynthesis and respiration were measured under controlled conditions of light and temperature using a dissolved oxygen (light/dark bottle) technique. The net specific growth rate and respiration rate were calculated from photosynthesis and respiration measurements using a fixed stoichiometric relationship and the measured carbon content of the algae. The maximum rates for net specific growth rate, gross specific growth rate, and specific respiration rate were 0.77, 1.08, and 0.44 day, respectively. (Copyright (c) Internat. Assoc. Great Lakes Res., 1982.)