| Main Title |
Lake Minnetonka: Nutrients, Nutrient Abatement, and the Photosynthetic System of the Phytoplankton. |
| Author |
Megar, Robert O. ;
Wright, J, Herbert E. ;
|
| CORP Author |
Minnesota Univ., Minneapolis. Limnological Research Center. |
| Year Published |
1970 |
| Report Number |
OWRR-A-016-MINN; 08670,; A-016-MINN(4) |
| Stock Number |
PB-199 915 |
| Additional Subjects |
( Lakes ;
Limnology) ;
( Phytoplankton ;
Biological productivity) ;
( Photosynthesis ;
Phytoplankton) ;
Nutrients ;
Algae ;
Phosphorous ;
Water quality ;
Light ;
Mathematical models ;
Temperature ;
Minnesota ;
Water pollution ;
Aquatic plants ;
Minnetonka Lake ;
Eutrophication
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-199 915 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
216p |
| Abstract |
Density of planktonic algae, rates of photosynthesis, nutrient concentrations, and other limnological characteristics were recorded during 1968-1970 in different parts of Lake Minnetonka, Minn. In the course of the past 30 years, the density of algae increased 2 or 3 times, and the dominance of diatoms was replaced by that of blue-green algae. A linear relationship was disclosed between the algae density and the content of total phosphorus within the range of 50 to 200 mg/cu m. A decrease of phosphorus below 45 mg/cu m promises a rapid improvement of the lake quality. The nutrient enrichment of the lake is largely due to the land runoff and storm drainage, rather than the discharge of sewage. A mathematical model of the photosynthetic system was based on the relation between the intensity of illumination and the biomass of algae. The report includes a detailed record of taxa and densities of algae during different months of 1968 and 1969. (WRSIC abstract) |
| Supplementary Notes |
Sponsored in part by Minnesota Resources Commission and the Minnesota Pollution Control Agency. |
| NTIS Title Notes |
Final rept.. |
| PUB Date Free Form |
Dec 70, |
| Category Codes |
8H; 13B; 6C; 64H; 68D; 57H |
| NTIS Prices |
PC A10 MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326518763 |
| Origin |
NTIS |
| Type |
CAT |
