Data and R-code for "Aquatic Macrophyte and Water Quality Response to Aluminum Sulfate Treatments"
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2022-05-01
2023-08-31
2023-08-31
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2024-10-15
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Title
Data and R-code for "Aquatic Macrophyte and Water Quality Response to Aluminum Sulfate Treatments"
Published Date
2025-03-05
Author Contact
Newman, Raymond
newma004@umn.edu
newma004@umn.edu
Type
Dataset
Spatial Data
Statistical Computing Software Code
Field Study Data
Spatial Data
Statistical Computing Software Code
Field Study Data
Abstract
This study examines data from 6 lakes in Minnesota and 2 in Wisconsin to assess the response of aquatic plants and water quality to aluminum sulfate (alum) treatments. The dataset spans from 2011 to 2023 and includes measurements of total epilimnetic phosphorus, Secchi depths, and the frequency of native and invasive macrophyte species. Data were collected directly by project personnel but we also include data provided by project collaborators that were used in the formal analysis. Additional data collected by project personnel, including all point intercept aquatic plant data, temperature, light and dissolved oxygen profiles, and additional water chemistry data are included to facilitate further analysis in the future. Results indicate a marked reduction in total epilimnetic phosphorus levels and improved water clarity (Secchi) after alum treatment, with notable increases in native macrophyte occurrence. Invasive species such as curly-leaf pondweed decreased after alum treat, while Eurasian watermilfoil exhibited variable responses. This comprehensive dataset highlights the effectiveness of alum treatments in enhancing water quality and supporting macrophyte health, with considerations for ongoing invasive species management.
Description
The dataset spans from 2011 to 2023 and includes a data file of water quality (total epilimnetic phosphorus, Secchi depths), a data file of Submersed aquatic plant data (frequency of occurrence of native and invasive macrophyte species) and files with statistical output reported in Hembre 2024. Additional data collected by project personnel, including all point intercept aquatic plant data, temperature, light and dissolved oxygen profiles, and additional water chemistry data are provided to facilitate further analysis in the future.
Referenced by
Hembre K. (2024). The Response of Native and Invasive Aquatic Macrophytes to Water Quality Conditions after Aluminum Sulfate Treatments. Masters Thesis, University of Minnesota. https://hdl.handle.net/11299/269959.
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Funding information
U.S. Geological Survey under Grant/Cooperative Agreement No. G22AP00056-00
University of Minnesota Water Resources Center
Water Resources Science Graduate Program
Riley Purgatory Bluff Creek Watershed District
Minnesota Agricultural Experiment Station USDA National Institute of Food and Agriculture (Hatch grant MIN-41-081)
Minnesota Aquatic Invasive Species Research Center
University of Minnesota Water Resources Center
Water Resources Science Graduate Program
Riley Purgatory Bluff Creek Watershed District
Minnesota Agricultural Experiment Station USDA National Institute of Food and Agriculture (Hatch grant MIN-41-081)
Minnesota Aquatic Invasive Species Research Center
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Suggested citation
Hembre, Kaitlyn; Newman, Raymond M; Bajcz, Alex W; Berg, Matt; James, William. (2025). Data and R-code for "Aquatic Macrophyte and Water Quality Response to Aluminum Sulfate Treatments". Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/jw25-8560.
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USGS_ReadMe_Hembre.txt
Readme documentation file
(29.7 KB)
USGS_PvalueAdjust.html
Code and output to adjust p-values to account for false positives (FDR)
(627.69 KB)
USGS_PvalueAdjust.Rmd
Code to adjust p-values to account for false positives (FDR)
(2.06 KB)
Secchi_Analysis.html
Code and output for analysis of Secchi depth
(1.26 MB)
Secchi_Analysis.Rmd
Code for analysis of Secchi depth
(17.56 KB)
IndividualLake_Analysis.html
Code and output for analysis of changes on a lake-by-lake basis
(641.28 KB)
IndividualLake_Analysis.Rmd
Code for analysis of changes on a lake-by-lake basis
(9.59 KB)
AquaticPlant_Analysis.html
Code and output for analysis of native and invasive aquatic plants
(3.09 MB)
AquaticPlant_Analysis.Rmd
Code for analysis of native and invasive aquatic plants
(63.95 KB)
TP_Analysis.html
Code and output for analysis of total phosphorus
(1.33 MB)
TP_Analysis.Rmd
Code for analysis of total phosphorus
(21.41 KB)
Additional_data.zip
Archived data not included in analysis
(618.59 KB)
Analysis_files.zip
Data files used in analysis
(21.02 KB)
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