Record Display for the EPA National Library Catalog
RECORD NUMBER: 1 OF 1Main Title | Nutrient enrichment and eutrophication of Lake Michigan | |||||||||||
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Author | Shelake, Claire L. | |||||||||||
Publisher | Great Lakes Research Division, The University of Michigan, | |||||||||||
Year Published | 1982 | |||||||||||
Report Number | DOE/EV/02003-44 ; DE82015576 ; DE-AC02-76EV02003 ; 000-2003-44 | |||||||||||
OCLC Number | 122170321 | |||||||||||
Subjects | Eutrophication--Michigan, Lake ; Lake sediments--Michigan, Lake ; Water chemistry--Michigan, Lake | |||||||||||
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Edition | Final report. | |||||||||||
Collation | 23 p. ; 28 cm. | |||||||||||
Abstract | This project was initiated in 1969 to identify and study processes that were contributing to accelerated eutrophication of Lake Michigan.^Results of several different types of nutrient enrichment experiments showed that inputs of phosphorus to the lake accelerated phytoplankton growth and eutrophication.^It was also shown that there was an imbalance in the inputs of phosphorus and silica to the lake relative to the amounts required by diatoms.^As a result silica concentrations decreased over a 30- to 40-y period to levels that limited diatom production and favored the growth of blue-green and green algae, a generally undesirable environmental change.^These findings indicated that additional research should be conducted on effects of phosphorus and silica on phytoplankton growth and on effects of tributary inputs, which supply large amounts of phosphorus.^In addition research was conducted on the silica cycle to understand processes involved in changing the geochemical environment from silica replete to silica limited for diatom growth. |
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Notes | November 1, 1969 to September 30, 1981. Prepared for the U.S. Department of Energy under contract no. DE-AC02-76EV02003. |