Jeff Frey
Jeff's research focuses on the transport of and biological response to nutrients, primarily in the Midwest. Recently the focus has been on edge-of-field studies and Supergages to better understand transport of nutrients. A focus recently has been building water quality and streamgage networks through collaborations with key groups like the Indiana Water Monitoring Council, Indiana Silver Jackets,
He began working with the USGS after graduate school in Indiana 1992 with the National Water-Quality Assessment (NAWQA) Program and has held several positions since then including overseeing the White River - Miami River NAWQA study unit and coordinating the Midwest Stream Quality Assessment in collaboration with the USEPA and NAWQA in 2013. Currently, he is the Director of the USGS Indiana-Kentucky Water Science Center in Indianapolis.
Professional Experience
1986-1988 - Worked with Peace Corps in Cameroon teaching inland fisheries
1990 - Observer with the National Marine Fisheries Service off of Alaska
1992 - White River Study Unit, National Water Quality Assessment (NAWQA) Program
2001 - White River - Miami River NAWQA Study Unit Chief
2014 - Associate Director, Indiana-Kentucky WSC
2018 - Associate Director - Indiana - Ohio-Kentucky-Indiana WSC (OKI WSC)
2023 - Director, OKI WSC
Education and Certifications
B.S. from the University of Minnesota in Environmental Studies in 1986
M.S. from the Indiana University School of Public and Environmental Affairs in 1992
Science and Products
The influence of nutrients and physical habitat in regulating algal biomass in agricultural streams
Biological-Community Composition in Small Streams and its Relations to Habitat, Nutrients, and Land Use in Agriculturally Dominated Landscapes in Indiana and Ohio, 2004, and Implications for Assessing Nutrient Conditions in Midwest Streams
Occurrence and distribution of algal biomass and Its relation to nutrients and selected basin characteristics in Indiana streams, 2001-2005
Relations of Principal Components Analysis Site Scores to Algal-Biomass, Habitat, Basin-Characteristics, Nutrient, and Biological-Community Data in the West Fork White River Basin, Indiana, 2001
Relations of principal components analysis site scores to algal-biomass, habitat, basin-characteristics, nutrient, and biological-community data in the Upper Wabash River Basin, Indiana, 2003
Relations of principal components analysis site scores to algal-biomass, habitat, basin-characteristics, nutrient, and biological-community data in the Whitewater River and East Fork White River basins, Indiana, 2002
Water and agricultural-chemical transport in a Midwestern, tile-drained watershed: Implications for conservation practices
Nutrient, Habitat, and Basin-Characteristics Data and Relations with Fish and Invertebrate Communities in Indiana Streams, 1998-2000
Occurrence, distribution, and loads of selected pesticides in streams in the Lake Erie-Lake St. Clair basin, 1996–98
A comparison of selected diversity, similarity, and biotic indices for detecting changes in benthic-invertebrate community structure and stream quality
Water quality in the Lake Erie-Lake Saint Clair drainages: Michigan, Ohio, Indiana, New York, and Pennsylvania, 1996–98
Fish community and habitat data at selected sites in the White River Basin, Indiana, 1993-95
Science and Products
- Publications
Filter Total Items: 28
The influence of nutrients and physical habitat in regulating algal biomass in agricultural streams
This study examined the relative influence of nutrients (nitrogen and phosphorus) and habitat on algal biomass in five agricultural regions of the United States. Sites were selected to capture a range of nutrient conditions, with 136 sites distributed over five study areas. Samples were collected in either 2003 or 2004, and analyzed for nutrients (nitrogen and phosphorous) and algal biomass (chlorAuthorsMark D. Munn, Jeffrey W. Frey, Anthony J. TesorieroBiological-Community Composition in Small Streams and its Relations to Habitat, Nutrients, and Land Use in Agriculturally Dominated Landscapes in Indiana and Ohio, 2004, and Implications for Assessing Nutrient Conditions in Midwest Streams
The objective of this study was to relate algal-, invertebrate-, and fish-community composition to habitat, nutrients, and land-use variables in small streams in agriculturally dominated landscapes of the Midwest in Indiana and Ohio. Thirty sample locations were selected from a single ecoregion; all were small wadable streams within agriculturally dominated landscapes with similar substrate and caAuthorsBrian J. Caskey, Jeffrey W. FreyOccurrence and distribution of algal biomass and Its relation to nutrients and selected basin characteristics in Indiana streams, 2001-2005
Algal biomass and nutrient data were gathered at 322 randomly selected sites on 261 streams in the West Fork White River, Whitewater River, East Fork White River, Upper Wabash River, Kankakee River, Lower Wabash River, Tributaries to the Great Lakes, and Tributaries to the Ohio River Basins in Indiana from May through October for years 2001 through 2005. Basin characteristics (land use and drainagAuthorsB. Scott Lowe, Donald R. Leer, Jeffrey W. Frey, Brian J. CaskeyRelations of Principal Components Analysis Site Scores to Algal-Biomass, Habitat, Basin-Characteristics, Nutrient, and Biological-Community Data in the West Fork White River Basin, Indiana, 2001
Data were gathered from July through September 2001 at 34 randomly selected sites in the West Fork White River Basin, Indiana for algal biomass, habitat, nutrients, and biological communities (fish and invertebrates). Basin characteristics (drainage area and land use) and biological-community attributes and metric scores were determined for the basin of each sampling site. Yearly Principal ComponeAuthorsJeffrey W. Frey, Brian J. Caskey, B. Scott LoweRelations of principal components analysis site scores to algal-biomass, habitat, basin-characteristics, nutrient, and biological-community data in the Upper Wabash River Basin, Indiana, 2003
Data were gathered from May through October 2003 at 38 randomly selected sites in the Upper Wabash River Basin, Indiana, for algal biomass, habitat, nutrients, and biological communities (fish and invertebrates). Basin characteristics (drainage area and land use) and biological-community attributes and metric scores were determined for each sampling site's basin. Yearly Principal Components AnalysAuthorsDonald R. Leer, Brian J. Caskey, Jeffrey W. Frey, B. Scott LoweRelations of principal components analysis site scores to algal-biomass, habitat, basin-characteristics, nutrient, and biological-community data in the Whitewater River and East Fork White River basins, Indiana, 2002
Data were gathered from May through September 2002 at 76 randomly selected sites in the Whitewater River and East Fork White River Basins, Indiana, for algal biomass, habitat, nutrients, and biological communities (fish and invertebrates). Basin characteristics (land use and drainage area) and biolog-ical-community attributes and metric scores were determined for the basin of each sampling site. YAuthorsBrian J. Caskey, Jeffrey W. Frey, B. Scott LoweWater and agricultural-chemical transport in a Midwestern, tile-drained watershed: Implications for conservation practices
The study of agricultural chemicals is one of five national priority topics being addressed by the National Water-Quality Assessment (NAWQA) Program in its second decade of studies, which began in 2001. Seven watersheds across the Nation were selected for the NAWQA agricultural-chemical topical study. The watersheds selected represent a range of agricultural settings - with varying crop types andAuthorsNancy T. Baker, Wesley W. Stone, Jeffrey W. Frey, John T. WilsonNutrient, Habitat, and Basin-Characteristics Data and Relations with Fish and Invertebrate Communities in Indiana Streams, 1998-2000
An analysis of existing nutrient, habitat, basin-characteristics, and biological-community (fish and invertebrate) data assessed significant relations between nutrients and biological data. Data from 1998 through 2000 for 58 sites in the Upper Wabash River Basin, Lower Wabash River Basin, and tributaries to the Great Lakes and Ohio River Basins were analyzed. Correspondence analysis was used to asAuthorsJeffrey W. Frey, Brian J. CaskeyOccurrence, distribution, and loads of selected pesticides in streams in the Lake Erie-Lake St. Clair basin, 1996–98
Thirty pesticides or their degradates were detected in 315 samples collected from 10 streams in the Lake Erie-Lake St. Clair Basin between March 1996 and February 1998 as part of the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Program. Atrazine was detected in every sample, and deethylatrazine, metolachlor, and simazine were detected in more than 90 percent of all samples. AAuthorsJeffrey W. FreyA comparison of selected diversity, similarity, and biotic indices for detecting changes in benthic-invertebrate community structure and stream quality
Implementation of advanced wastewater treatment at the two municipal wastewater-treatment plants for Indianapolis, Indiana, resulted in substantial improvement in the quality of the receiving stream and significant changes in the benthic-invertebrate community. Diversity, similarity, and biotic indices were compared to determine which indices best reflected changes in the composition of the biotaAuthorsM.J. Lydy, Charles G. Crawford, J.W. FreyWater quality in the Lake Erie-Lake Saint Clair drainages: Michigan, Ohio, Indiana, New York, and Pennsylvania, 1996–98
This report summarizes major findings about water quality in the Lake Erie-Lake Saint Clair Drainages that emerged from an assessment conducted between 1996 and 1998 by the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Program. Water quality is discussed in terms of local and regional issues and compared to conditions found in all 36 NAWQA study areas assessed to date. FiAuthorsDonna N. Myers, Mary Ann Thomas, Jeffrey W. Frey, Stephen J. Rheaume, Daniel T. ButtonFish community and habitat data at selected sites in the White River Basin, Indiana, 1993-95
No abstract available.AuthorsN.T. Baker, J.W. Frey - Science
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