Record Display for the EPA National Library CatalogRECORD NUMBER: 14 OF 22
|Main Title||Investigation of the Water Quality and Productivity of Polson Bay, Flathead Lake, Montana.|
|Author||Gaufin., Arden R. ;|
|CORP Author||Montana State Univ., Bozeman. Water Resources Research Center.|
|Report Number||MUJWRRC-48; OWRR-A-043-MONT; W74-07717 ; OWRR-A-043-MONT(1)|
|Stock Number||PB-232 119|
|Additional Subjects||Water pollution ; Primary biological productivity ; Polson Bay ; Flathead Lake ; Carbon isotopes ; Phytoplankton ; Zooplankton ; Biomass ; Water analysis ; Carbon dioxide ; Temperature measurement ; Thermal pollution ; Chlorides ; Nitrogen inorganic compounds ;|
Zooplankton and phytoplankton collections were taken in Polson Bay at the lower end of Flathead Lake, MT, and a biomass estimate obtained. Exchange of nutrients with bottom sediments was measured, particulate matter in the water was analyzed for carbon and ash-free dry weight, and the gross primary productivity of Flathead Lake was measured by means of the carbon 14 method. Thermal stratification occurred at only a few locations in Flathead Lake. Nutrients and dissolved solids, although normally at low concentrations, were usually sufficient to support the growth of phytoplankton. Most components increased in concentration during the summer months. Coliform were almost non-existent in Polson Bay.