A Paleoecological Examination of Temporal Trophic Changes Through Diatom Trend Analysis at High Island Lake, Sibley County, Minnesota

Location

CSU

Student's Major

Biological Sciences

Student's College

Science, Engineering and Technology

Mentor's Name

Bryce Hoppie

Mentor's Department

Chemistry and Geology

Mentor's College

Science, Engineering and Technology

Description

Lake restoration is a popular method of reclaiming and restoring eutrophic waters to a clearer, ecologically, and economically viable state. Establishing reasonable restoration goals relies upon accurately depicting a lake's past trophic evolution. With the current understanding of fossilized diatom ecology, it is possible to reconstruct a temporal trophic timeline, which can be correlated with phosphorus, chloride, and other indicators of water quality. These data can denote how a lake's natural and induced nutrient cycles influenced its trophic status prior to and after human development. Preliminary diatom fossil data compiled from High Island Lake, Sibley County, Minnesota identifies significant natural shifts in trophic status, as well as shifts from human disturbances to the lake and surrounding watershed.

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A Paleoecological Examination of Temporal Trophic Changes Through Diatom Trend Analysis at High Island Lake, Sibley County, Minnesota

CSU

Lake restoration is a popular method of reclaiming and restoring eutrophic waters to a clearer, ecologically, and economically viable state. Establishing reasonable restoration goals relies upon accurately depicting a lake's past trophic evolution. With the current understanding of fossilized diatom ecology, it is possible to reconstruct a temporal trophic timeline, which can be correlated with phosphorus, chloride, and other indicators of water quality. These data can denote how a lake's natural and induced nutrient cycles influenced its trophic status prior to and after human development. Preliminary diatom fossil data compiled from High Island Lake, Sibley County, Minnesota identifies significant natural shifts in trophic status, as well as shifts from human disturbances to the lake and surrounding watershed.