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Lindsey A. Bruckerhoff, PhD (Former Employee)

Science and Products

Leafy trees line opposite bank. Waters on the wide river are green & blue

Intermittent Stream Risk Assessment: Mapping Patterns of Stream Drying and Identifying Vulnerabilities of Stream Fish and Crayfish Communities to Drying

Small creeks and streams often dry out during the summer but still support many insects, fish, crayfish, and plants. Though intermittent streams are the most common type of flowing water across the globe, not much is known about which, how, why, or when streams dry or about how patterns of drying affect species in these habitats. More information about patterns of stream drying can help...
By
Climate Adaptation Science Centers
Intermittent Stream Risk Assessment: Mapping Patterns of Stream Drying and Identifying Vulnerabilities of Stream Fish and Crayfish Communities to Drying

Intermittent Stream Risk Assessment: Mapping Patterns of Stream Drying and Identifying Vulnerabilities of Stream Fish and Crayfish Communities to Drying

Small creeks and streams often dry out during the summer but still support many insects, fish, crayfish, and plants. Though intermittent streams are the most common type of flowing water across the globe, not much is known about which, how, why, or when streams dry or about how patterns of drying affect species in these habitats. More information about patterns of stream drying can help inform the
Learn More

Various Lake Powell data used for predicting smallmouth bass entrainment rates and population growth based on thermal suitability below and downstream of Glen Canyon Dam Various Lake Powell data used for predicting smallmouth bass entrainment rates and population growth based on thermal suitability below and downstream of Glen Canyon Dam

These data were compiled to create models that estimate entrainment rates and population growth rates of smallmouth bass below Glen Canyon Dam. Objective(s) of our study were to predict smallmouth bass entrainment rates and population growth under different future scenarios of Lake Powell elevations and management. These data represent parameters needed for associated models and data...
By
Southwest Biological Science Center

Declining reservoir elevations following a two-decade drought increase water temperatures and non-native fish passage facilitating a downstream invasion Declining reservoir elevations following a two-decade drought increase water temperatures and non-native fish passage facilitating a downstream invasion

River ecosystems are threatened by interactions among river regulation, non-native species, and climate change. Water use has exceeded supply in USA’s Colorado River basin draining its two largest storage reservoirs (Lake Powell and Lake Mead). In 2022, Lake Powell began releasing water from its lower epilimnion into the Grand Canyon segment of the Colorado River, which (1) increased...
Authors
Drew Eppehimer, Charles Yackulic, Lindsey Bruckerhoff, Jianghao Wang, Kirk Young, Kevin Bestgen, Bryce Mihalevich, John Schmidt
By
Ecosystems Mission Area, Cooperative Research Units, Southwest Biological Science Center

Updated distribution for two freshwater mussel species of conservation concern in Oklahoma Updated distribution for two freshwater mussel species of conservation concern in Oklahoma

Qualitative and quantitative sampling efforts in the Verdigris River, OK (upstream of Lake Oologah), yielded new distributional records of 2 freshwater mussel species of conservation need: Cyprogenia aberti (Western Fanshell) and Ptychobranchus occidentalis (Ouachita Kidneyshell). The Ouachita Kidneyshell has not been documented alive during a scientific survey in the Oklahoma portion of...
Authors
Hunter M. Torolski, James Long, Robert Lonsinger, Lindsey Bruckerhoff
By
Cooperative Research Units

Using down-scan capabilities from recreational-grade side-scan sonar systems to sample paddlefish and evaluate depth use in a reservoir Using down-scan capabilities from recreational-grade side-scan sonar systems to sample paddlefish and evaluate depth use in a reservoir

Recreational-grade side-scan sonar (SSS) has only recently been applied to estimate abundance of Paddlefish Polyodon spathula, a large pelagic planktivore, in reservoirs. Current recreational-grade SSS units also have a dedicated down-scan channel, which may be useful for detecting Paddlefish in reservoirs because the range of depths they inhabit. We investigated the utility of down-scan...
Authors
James Long, P. Joyce, L. Bruckerhoff, Robert Lonsinger, W. Wolfenkoehler
By
Cooperative Research Units

Viability of side-scan sonar to enumerate Paddlefish, a large pelagic freshwater fish, in rivers and reservoirs Viability of side-scan sonar to enumerate Paddlefish, a large pelagic freshwater fish, in rivers and reservoirs

Recreational-grade side-scan sonar (SSS) has become an invaluable tool for inland fisheries, particularly when characterizing underwater habitat, but it is being increasingly used for enumerating large-bodied (> 1 m total length [TL]) aquatic fauna. We used SSS in river and reservoir environments to evaluate methods for identifying and counting Paddlefish Polyodon spathula, a large...
Authors
Wyatt Wolfenkoehler, James Long, Ryan Gary, Richard A. Snow, Jason Schooley, Lindsey Bruckerhoff, Robert Lonsinger
By
Cooperative Research Units

A perched culvert and natural obstructions limit fish dispersal in an intermittent prairie stream A perched culvert and natural obstructions limit fish dispersal in an intermittent prairie stream

Poorly constructed road crossings block upstream movement of fish into stream reaches that provide critical habitat or connect isolated populations. Although removing these barriers is often a conservation priority, quantifying fish passage following removal has not been well studied, particularly in intermittent streams. In this study, we sought to understand how barriers influence the...
Authors
Keith B. Gido, Skyler Hedden, Lindsey Bruckerhoff, Casey Pennock, Crosby Hedden, Garrett Hopper, Elizabeth Renner, Eric R. Johnson, Ben Postlethwait
By
Cooperative Research Units

The Colorado River – The science-policy interface The Colorado River – The science-policy interface

No abstract available.
Authors
John Schmidt, Lindsey Bruckerhoff, Jianghao Wang, Charles Yackulic
By
Ecosystems Mission Area, Southwest Biological Science Center

Failure to achieve recommended environmental flows coincides with declining fish populations: Long-term trends in regulated and unregulated rivers Failure to achieve recommended environmental flows coincides with declining fish populations: Long-term trends in regulated and unregulated rivers

Dams can be operated to mimic components of the natural flow regime to minimise impacts on downstream ecosystems. However, infrastructure, societal needs, water management, and catchment runoff constrain which and when flow regime attributes can be mimicked.We compared fish assemblage responses, including native and non-native species, over 2 decades of managed environmental flows to...
Authors
Casey Pennock, Lindsey Bruckerhoff, Keith B. Gido, Adam Barkalow, Matthew Breen, Phaedra E. Budy, William Macfarlane, David L. Propst
By
Cooperative Research Units

Water storage decisions and consumptive use may constrain ecosystem management under severe sustained drought Water storage decisions and consumptive use may constrain ecosystem management under severe sustained drought

Drought has impacted the Colorado River basin for the past 20 years and is predicted to continue. In response, decisions about how much water should be stored in large reservoirs and how much water can be consumptively used will be necessary. These decisions have the potential to limit riverine ecosystem management options through the effect water-supply decisions have on reservoir...
Authors
Lindsey Bruckerhoff, Kevin Wheeler, Kimberly Dibble, B.A. Mihalevich, B.T. Nielson, J. Wang, Charles Yackulic, J.C. Schmidt
By
Ecosystems Mission Area, Cooperative Research Units, Southwest Biological Science Center

Hydrologic regimes as potential drivers of morphologic divergence in fish Hydrologic regimes as potential drivers of morphologic divergence in fish

Fishes often exhibit phenotypic divergence across gradients of abiotic and biotic selective pressures. In streams, many of the known selective pressures driving phenotypic differentiation are largely influenced by hydrologic regimes. Because flow regimes drive so many attributes of lotic systems, we hypothesized fish exhibit phenotypic divergence among streams with different flow regimes...
Authors
Lindsey Bruckerhoff, Daniel Magoulick
By
Cooperative Research Units

Science and Products

Leafy trees line opposite bank. Waters on the wide river are green & blue

Intermittent Stream Risk Assessment: Mapping Patterns of Stream Drying and Identifying Vulnerabilities of Stream Fish and Crayfish Communities to Drying

Small creeks and streams often dry out during the summer but still support many insects, fish, crayfish, and plants. Though intermittent streams are the most common type of flowing water across the globe, not much is known about which, how, why, or when streams dry or about how patterns of drying affect species in these habitats. More information about patterns of stream drying can help...
By
Climate Adaptation Science Centers
Intermittent Stream Risk Assessment: Mapping Patterns of Stream Drying and Identifying Vulnerabilities of Stream Fish and Crayfish Communities to Drying

Intermittent Stream Risk Assessment: Mapping Patterns of Stream Drying and Identifying Vulnerabilities of Stream Fish and Crayfish Communities to Drying

Small creeks and streams often dry out during the summer but still support many insects, fish, crayfish, and plants. Though intermittent streams are the most common type of flowing water across the globe, not much is known about which, how, why, or when streams dry or about how patterns of drying affect species in these habitats. More information about patterns of stream drying can help inform the
Learn More

Various Lake Powell data used for predicting smallmouth bass entrainment rates and population growth based on thermal suitability below and downstream of Glen Canyon Dam Various Lake Powell data used for predicting smallmouth bass entrainment rates and population growth based on thermal suitability below and downstream of Glen Canyon Dam

These data were compiled to create models that estimate entrainment rates and population growth rates of smallmouth bass below Glen Canyon Dam. Objective(s) of our study were to predict smallmouth bass entrainment rates and population growth under different future scenarios of Lake Powell elevations and management. These data represent parameters needed for associated models and data...
By
Southwest Biological Science Center

Declining reservoir elevations following a two-decade drought increase water temperatures and non-native fish passage facilitating a downstream invasion Declining reservoir elevations following a two-decade drought increase water temperatures and non-native fish passage facilitating a downstream invasion

River ecosystems are threatened by interactions among river regulation, non-native species, and climate change. Water use has exceeded supply in USA’s Colorado River basin draining its two largest storage reservoirs (Lake Powell and Lake Mead). In 2022, Lake Powell began releasing water from its lower epilimnion into the Grand Canyon segment of the Colorado River, which (1) increased...
Authors
Drew Eppehimer, Charles Yackulic, Lindsey Bruckerhoff, Jianghao Wang, Kirk Young, Kevin Bestgen, Bryce Mihalevich, John Schmidt
By
Ecosystems Mission Area, Cooperative Research Units, Southwest Biological Science Center

Updated distribution for two freshwater mussel species of conservation concern in Oklahoma Updated distribution for two freshwater mussel species of conservation concern in Oklahoma

Qualitative and quantitative sampling efforts in the Verdigris River, OK (upstream of Lake Oologah), yielded new distributional records of 2 freshwater mussel species of conservation need: Cyprogenia aberti (Western Fanshell) and Ptychobranchus occidentalis (Ouachita Kidneyshell). The Ouachita Kidneyshell has not been documented alive during a scientific survey in the Oklahoma portion of...
Authors
Hunter M. Torolski, James Long, Robert Lonsinger, Lindsey Bruckerhoff
By
Cooperative Research Units

Using down-scan capabilities from recreational-grade side-scan sonar systems to sample paddlefish and evaluate depth use in a reservoir Using down-scan capabilities from recreational-grade side-scan sonar systems to sample paddlefish and evaluate depth use in a reservoir

Recreational-grade side-scan sonar (SSS) has only recently been applied to estimate abundance of Paddlefish Polyodon spathula, a large pelagic planktivore, in reservoirs. Current recreational-grade SSS units also have a dedicated down-scan channel, which may be useful for detecting Paddlefish in reservoirs because the range of depths they inhabit. We investigated the utility of down-scan...
Authors
James Long, P. Joyce, L. Bruckerhoff, Robert Lonsinger, W. Wolfenkoehler
By
Cooperative Research Units

Viability of side-scan sonar to enumerate Paddlefish, a large pelagic freshwater fish, in rivers and reservoirs Viability of side-scan sonar to enumerate Paddlefish, a large pelagic freshwater fish, in rivers and reservoirs

Recreational-grade side-scan sonar (SSS) has become an invaluable tool for inland fisheries, particularly when characterizing underwater habitat, but it is being increasingly used for enumerating large-bodied (> 1 m total length [TL]) aquatic fauna. We used SSS in river and reservoir environments to evaluate methods for identifying and counting Paddlefish Polyodon spathula, a large...
Authors
Wyatt Wolfenkoehler, James Long, Ryan Gary, Richard A. Snow, Jason Schooley, Lindsey Bruckerhoff, Robert Lonsinger
By
Cooperative Research Units

A perched culvert and natural obstructions limit fish dispersal in an intermittent prairie stream A perched culvert and natural obstructions limit fish dispersal in an intermittent prairie stream

Poorly constructed road crossings block upstream movement of fish into stream reaches that provide critical habitat or connect isolated populations. Although removing these barriers is often a conservation priority, quantifying fish passage following removal has not been well studied, particularly in intermittent streams. In this study, we sought to understand how barriers influence the...
Authors
Keith B. Gido, Skyler Hedden, Lindsey Bruckerhoff, Casey Pennock, Crosby Hedden, Garrett Hopper, Elizabeth Renner, Eric R. Johnson, Ben Postlethwait
By
Cooperative Research Units

The Colorado River – The science-policy interface The Colorado River – The science-policy interface

No abstract available.
Authors
John Schmidt, Lindsey Bruckerhoff, Jianghao Wang, Charles Yackulic
By
Ecosystems Mission Area, Southwest Biological Science Center

Failure to achieve recommended environmental flows coincides with declining fish populations: Long-term trends in regulated and unregulated rivers Failure to achieve recommended environmental flows coincides with declining fish populations: Long-term trends in regulated and unregulated rivers

Dams can be operated to mimic components of the natural flow regime to minimise impacts on downstream ecosystems. However, infrastructure, societal needs, water management, and catchment runoff constrain which and when flow regime attributes can be mimicked.We compared fish assemblage responses, including native and non-native species, over 2 decades of managed environmental flows to...
Authors
Casey Pennock, Lindsey Bruckerhoff, Keith B. Gido, Adam Barkalow, Matthew Breen, Phaedra E. Budy, William Macfarlane, David L. Propst
By
Cooperative Research Units

Water storage decisions and consumptive use may constrain ecosystem management under severe sustained drought Water storage decisions and consumptive use may constrain ecosystem management under severe sustained drought

Drought has impacted the Colorado River basin for the past 20 years and is predicted to continue. In response, decisions about how much water should be stored in large reservoirs and how much water can be consumptively used will be necessary. These decisions have the potential to limit riverine ecosystem management options through the effect water-supply decisions have on reservoir...
Authors
Lindsey Bruckerhoff, Kevin Wheeler, Kimberly Dibble, B.A. Mihalevich, B.T. Nielson, J. Wang, Charles Yackulic, J.C. Schmidt
By
Ecosystems Mission Area, Cooperative Research Units, Southwest Biological Science Center

Hydrologic regimes as potential drivers of morphologic divergence in fish Hydrologic regimes as potential drivers of morphologic divergence in fish

Fishes often exhibit phenotypic divergence across gradients of abiotic and biotic selective pressures. In streams, many of the known selective pressures driving phenotypic differentiation are largely influenced by hydrologic regimes. Because flow regimes drive so many attributes of lotic systems, we hypothesized fish exhibit phenotypic divergence among streams with different flow regimes...
Authors
Lindsey Bruckerhoff, Daniel Magoulick
By
Cooperative Research Units
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