Paul Angermeier, PhD
Assistant Unit Leader - Virginia Cooperative Fish and Wildlife Research Unit
Research Interests
- Stream fish communities
- Assessing quality of aquatic resources
- Conservation of aquatic systems
Professional Experience
Assistant Unit Leader, Virginia Cooperative Fish and Wildlife Research Unit, 2010-
Science and Products
Fish communities in streams of the Maryland-Washington, DC-Virginia developed Piedmont, 2024
From May 27 to June 21, 2024, a Virginia Tech team of 5 sampled the fish community in 30 streams spanning a gradient of the developed landscape, including Potomac River, Rappahannock River, and upper Chesapeake Bay tributaries of Maryland, Washington, D.C., and Virginia, USA. These fish surveys were part of a larger stream-health study including other teams who surveyed geomorphology...
Fish communities in PA and MD Piedmont mixed agricultural streams, 2023
From 2-27 June, 2023, a Virginia Tech team of 5 sampled the fish community in 30 Piedmont streams (lower Susquehanna River and upper Chesapeake Bay tributaries, Pennsylvania and Maryland, USA) spanning a gradient of agricultural intensity as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, and macroinvertebrates at...
Fish communities in Delmarva Peninsula streams, 2022
From 31 May to 29 June, 2022, a Virginia Tech team of 4-5 sampled the fish community in 30 Delmarva Peninsula streams (Maryland and Delaware, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, macroinvertebrates, and fish health at the same 30 streams. These 30 Chesapeake Bay Watershed tributaries had upstream...
Fish communities in Shenandoah Valley streams, 2021
From 16 June to 30 July, 2021, a Virginia Tech team of 4-6 sampled the fish community in 30 Shenandoah Valley streams (Virginia and West Virginia, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, macroinvertebrates, and fish health at the same 30 streams. The fish community team also sampled three additional...
Filter Total Items: 84
Management strategy evaluation to assess trade-offs associated with invasive Blue Catfish fisheries and predation impacts
ObjectiveMany species are intentionally introduced beyond their native range to provide benefits to humans (e.g., food, recreation, or biocontrol). However, introduced species can become invasive and can harm native species, prompting resource managers to explore options to simultaneously conserve native biota and enhance fishing opportunities. Management of Chesapeake Bay Blue Catfish...
Authors
Corbin David Hilling, Yan Jiao, Joseph Schmitt, Mary C. Fabrizio, Paul L. Angermeier, Donald J. Orth
Connecting conservation practices to local stream health in the Chesapeake Bay watershed
The Chesapeake Bay Partnership is implementing conservation practices (CPs) throughout the Chesapeake Bay watershed to reduce nutrient and sediment delivery to the Bay. This study intends to provide an integrated and detailed understanding of how local streams respond to these CP-driven management efforts.Key issue: To what extent do CPs positively affect the health of local streams in...
Authors
Gregory Noe, Paul L. Angermeier, Larry B. Barber, Joe Buckwalter, Matthew J. Cashman, Olivia Devereux, Thomas Rossiter Doody, Sally Entrekin, Rosemary M. Fanelli, Nathaniel P. Hitt, Molly Elizabeth Huber, Jeramy Roland Jasmann, Kelly O. Maloney, Tristan Gregory Mohs, Sergio Sabat-Bonilla, Kelly Smalling, Tyler Wagner, John C. Wolf, Kenneth Hyer
Deposited sediment influences occurrence of functional traits of stream fishes
To better understand stream-fish sensitivity to fine sediment, we documented assemblage-wide responses by selected traits along a sedimentation gradient. We then discuss the management implications of these ‘dose–response’ relations in the contexts of biotic assessments and conservation of sediment-sensitive species. We identified a spatial gradient in sediment deposition among streams...
Authors
Mallory Hirschler, Amy M. Villamagna, Paul L. Angermeier, Eric Laflamme
Genetic structure across isolated Virginia populations of the endangered candy darter (Etheostoma osburni)
Candy darter Etheostoma osburni, a federally endangered non-game fish, has been extirpated from most of its historic range in Virginia and now occurs in four isolated populations in the New River drainage. Understanding of population genetic structure will provide insights into the recent natural history of the species and can inform conservation management. Our objectives were to...
Authors
Kathryn E. McBaine, Paul L. Angermeier, Eric M. Hallerman
Global review reveals how disparate study motivations, analytical designs, and focal ions limit understanding of salinization effects on freshwater animals
Global salinization of freshwaters is adversely affecting biotic communities and ecosystem processes. We reviewed six decades (1960–2020) of literature published on animal responses to increased salinities across different taxonomic and ecological contexts and identified knowledge gaps. From 585 journal articles, we characterized 5924 responses of mollusks, crustaceans, zooplankton, non...
Authors
Richard H Walker, Abigail C. Belvin, Joshua. B. Mouser, Amanda Pennino, Stephen Plont, Christopher T. Robinson, Lucy B. Smith, Jyoti Thapa, Carl E. Zipper, Paul L. Angermeier, Sally Entrekin
A size-based stock assessment model for invasive blue catfish in a Chesapeake Bay sub-estuary during 2001–2016
Stock assessment modeling provides a means to estimate the population dynamics of invasive fishes and may do so despite data limitations. Blue catfish (Ictalurus furcatus) were introduced to the Chesapeake Bay watershed to support recreational fisheries but also consume species of conservation need and economic importance. To assess management tradeoffs, managers need to understand the...
Authors
Corbin David Hilling, Yan Jiao, Mary C. Fabrizio, Paul L. Angermeier, Aaron J. Bunch, Donald J. Orth
Direct and molecular observation of movement and reproduction by Candy Darter, Etheostoma osburni, an endangered benthic stream fish in Virginia, USA
Direct and indirect measures of individual movement provide valuable knowledge regarding a species’ resiliency to environmental change. Information on patterns of movement can inform species management and conservation but is lacking for many imperiled fishes. The Candy Darter, Etheostoma osburni, is an endangered stream fish with a dramatically reduced distribution in Virginia in the...
Authors
Kathryn E. McBaine, Eric M. Hallerman, Paul L. Angermeier
Bankfull shear velocity predicts embeddedness and silt cover in gravel streambeds
Excess fine sediment (
Authors
Jonathan A. Czuba, Mallory Hirschler, Elizabeth A. Pratt, Amy Villamagna, Paul L. Angermeier
A new composite abundance metric detects stream fish declines and community homogenization during six decades of invasions
AimWe developed a new technique, utilizing species-specific counts of individuals from historical fish community samples, to examine landscape-level, spatio-temporal trends in relative abundance distributions. Abundance-based historical distribution analyses are often plagued by data comparability issues, but provide critical information about community composition trends inaccessible to...
Authors
Logan J. Sleezer, Paul L. Angermeier, Emmanuel A. Frimpong, Bryan L. Brown
Exploring relationships among stream health, human well-being, and demographics in Virginia, USA
Quantification of empirical relationships between ecosystem health and human well-being is uncommon at broad spatial scales. We used public data for Virginia (USA) counties to examine pairwise correlations among two indicators of stream health, thirteen indicators of human well-being, and four demographic metrics. Our indicators of stream health included the Virginia Stream Condition...
Authors
Paul L. Angermeier, Marc J. Stern, Leigh Anne H. Krometis, Tyler L. Hemby
Coal-mining intensity influences species and trait distributions of stream fishes in two Central Appalachian watersheds
Documenting responses of biotic assemblages to coal-mining impacts is crucial to informing regulatory and reclamation actions. However, attributing biotic patterns to specific stressors is difficult given the dearth of preimpact studies and prevalence of confounding factors. Analysing species distributions and abundances, especially stratified by species traits, provides insights into...
Authors
Zachary P. Martin, Paul L. Angermeier, Serena Ciparis, Donald J. Orth
Diel feeding and movement activity of Northern Snakehead Channa argus
Understanding the diel activity of a species can shed light on potential interactions with other species and inform management practices. To understand the diel activity of Northern Snakehead Channa argus, feeding habits and movement patterns were observed. Two hundred seventy-three Northern Snakehead were captured by boat electrofishing during May and June of 2007 and 2008. Their gut...
Authors
Nicolas W.R. Lapointe, Ryan K. Saylor, Paul L. Angermeier
Science and Products
Fish communities in streams of the Maryland-Washington, DC-Virginia developed Piedmont, 2024
From May 27 to June 21, 2024, a Virginia Tech team of 5 sampled the fish community in 30 streams spanning a gradient of the developed landscape, including Potomac River, Rappahannock River, and upper Chesapeake Bay tributaries of Maryland, Washington, D.C., and Virginia, USA. These fish surveys were part of a larger stream-health study including other teams who surveyed geomorphology...
Fish communities in PA and MD Piedmont mixed agricultural streams, 2023
From 2-27 June, 2023, a Virginia Tech team of 5 sampled the fish community in 30 Piedmont streams (lower Susquehanna River and upper Chesapeake Bay tributaries, Pennsylvania and Maryland, USA) spanning a gradient of agricultural intensity as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, and macroinvertebrates at...
Fish communities in Delmarva Peninsula streams, 2022
From 31 May to 29 June, 2022, a Virginia Tech team of 4-5 sampled the fish community in 30 Delmarva Peninsula streams (Maryland and Delaware, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, macroinvertebrates, and fish health at the same 30 streams. These 30 Chesapeake Bay Watershed tributaries had upstream...
Fish communities in Shenandoah Valley streams, 2021
From 16 June to 30 July, 2021, a Virginia Tech team of 4-6 sampled the fish community in 30 Shenandoah Valley streams (Virginia and West Virginia, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, macroinvertebrates, and fish health at the same 30 streams. The fish community team also sampled three additional...
Filter Total Items: 84
Management strategy evaluation to assess trade-offs associated with invasive Blue Catfish fisheries and predation impacts
ObjectiveMany species are intentionally introduced beyond their native range to provide benefits to humans (e.g., food, recreation, or biocontrol). However, introduced species can become invasive and can harm native species, prompting resource managers to explore options to simultaneously conserve native biota and enhance fishing opportunities. Management of Chesapeake Bay Blue Catfish...
Authors
Corbin David Hilling, Yan Jiao, Joseph Schmitt, Mary C. Fabrizio, Paul L. Angermeier, Donald J. Orth
Connecting conservation practices to local stream health in the Chesapeake Bay watershed
The Chesapeake Bay Partnership is implementing conservation practices (CPs) throughout the Chesapeake Bay watershed to reduce nutrient and sediment delivery to the Bay. This study intends to provide an integrated and detailed understanding of how local streams respond to these CP-driven management efforts.Key issue: To what extent do CPs positively affect the health of local streams in...
Authors
Gregory Noe, Paul L. Angermeier, Larry B. Barber, Joe Buckwalter, Matthew J. Cashman, Olivia Devereux, Thomas Rossiter Doody, Sally Entrekin, Rosemary M. Fanelli, Nathaniel P. Hitt, Molly Elizabeth Huber, Jeramy Roland Jasmann, Kelly O. Maloney, Tristan Gregory Mohs, Sergio Sabat-Bonilla, Kelly Smalling, Tyler Wagner, John C. Wolf, Kenneth Hyer
Deposited sediment influences occurrence of functional traits of stream fishes
To better understand stream-fish sensitivity to fine sediment, we documented assemblage-wide responses by selected traits along a sedimentation gradient. We then discuss the management implications of these ‘dose–response’ relations in the contexts of biotic assessments and conservation of sediment-sensitive species. We identified a spatial gradient in sediment deposition among streams...
Authors
Mallory Hirschler, Amy M. Villamagna, Paul L. Angermeier, Eric Laflamme
Genetic structure across isolated Virginia populations of the endangered candy darter (Etheostoma osburni)
Candy darter Etheostoma osburni, a federally endangered non-game fish, has been extirpated from most of its historic range in Virginia and now occurs in four isolated populations in the New River drainage. Understanding of population genetic structure will provide insights into the recent natural history of the species and can inform conservation management. Our objectives were to...
Authors
Kathryn E. McBaine, Paul L. Angermeier, Eric M. Hallerman
Global review reveals how disparate study motivations, analytical designs, and focal ions limit understanding of salinization effects on freshwater animals
Global salinization of freshwaters is adversely affecting biotic communities and ecosystem processes. We reviewed six decades (1960–2020) of literature published on animal responses to increased salinities across different taxonomic and ecological contexts and identified knowledge gaps. From 585 journal articles, we characterized 5924 responses of mollusks, crustaceans, zooplankton, non...
Authors
Richard H Walker, Abigail C. Belvin, Joshua. B. Mouser, Amanda Pennino, Stephen Plont, Christopher T. Robinson, Lucy B. Smith, Jyoti Thapa, Carl E. Zipper, Paul L. Angermeier, Sally Entrekin
A size-based stock assessment model for invasive blue catfish in a Chesapeake Bay sub-estuary during 2001–2016
Stock assessment modeling provides a means to estimate the population dynamics of invasive fishes and may do so despite data limitations. Blue catfish (Ictalurus furcatus) were introduced to the Chesapeake Bay watershed to support recreational fisheries but also consume species of conservation need and economic importance. To assess management tradeoffs, managers need to understand the...
Authors
Corbin David Hilling, Yan Jiao, Mary C. Fabrizio, Paul L. Angermeier, Aaron J. Bunch, Donald J. Orth
Direct and molecular observation of movement and reproduction by Candy Darter, Etheostoma osburni, an endangered benthic stream fish in Virginia, USA
Direct and indirect measures of individual movement provide valuable knowledge regarding a species’ resiliency to environmental change. Information on patterns of movement can inform species management and conservation but is lacking for many imperiled fishes. The Candy Darter, Etheostoma osburni, is an endangered stream fish with a dramatically reduced distribution in Virginia in the...
Authors
Kathryn E. McBaine, Eric M. Hallerman, Paul L. Angermeier
Bankfull shear velocity predicts embeddedness and silt cover in gravel streambeds
Excess fine sediment (
Authors
Jonathan A. Czuba, Mallory Hirschler, Elizabeth A. Pratt, Amy Villamagna, Paul L. Angermeier
A new composite abundance metric detects stream fish declines and community homogenization during six decades of invasions
AimWe developed a new technique, utilizing species-specific counts of individuals from historical fish community samples, to examine landscape-level, spatio-temporal trends in relative abundance distributions. Abundance-based historical distribution analyses are often plagued by data comparability issues, but provide critical information about community composition trends inaccessible to...
Authors
Logan J. Sleezer, Paul L. Angermeier, Emmanuel A. Frimpong, Bryan L. Brown
Exploring relationships among stream health, human well-being, and demographics in Virginia, USA
Quantification of empirical relationships between ecosystem health and human well-being is uncommon at broad spatial scales. We used public data for Virginia (USA) counties to examine pairwise correlations among two indicators of stream health, thirteen indicators of human well-being, and four demographic metrics. Our indicators of stream health included the Virginia Stream Condition...
Authors
Paul L. Angermeier, Marc J. Stern, Leigh Anne H. Krometis, Tyler L. Hemby
Coal-mining intensity influences species and trait distributions of stream fishes in two Central Appalachian watersheds
Documenting responses of biotic assemblages to coal-mining impacts is crucial to informing regulatory and reclamation actions. However, attributing biotic patterns to specific stressors is difficult given the dearth of preimpact studies and prevalence of confounding factors. Analysing species distributions and abundances, especially stratified by species traits, provides insights into...
Authors
Zachary P. Martin, Paul L. Angermeier, Serena Ciparis, Donald J. Orth
Diel feeding and movement activity of Northern Snakehead Channa argus
Understanding the diel activity of a species can shed light on potential interactions with other species and inform management practices. To understand the diel activity of Northern Snakehead Channa argus, feeding habits and movement patterns were observed. Two hundred seventy-three Northern Snakehead were captured by boat electrofishing during May and June of 2007 and 2008. Their gut...
Authors
Nicolas W.R. Lapointe, Ryan K. Saylor, Paul L. Angermeier