Kevin is a Research Fish Biologist at the Columbia Environmental Research Center's Yankton Field Research Station.
Science and Products
Biological and chemical data from laboratory toxicity exposures of rainbow trout to four wildland fire retardants
We determined the acute toxicity of four wildland fire retardants (Phos-Chek 259-Fx, Phos-Chek MVP-Fx, and Phos-Chek LC-95A-Fx, and Phos-Chek LC-95A-R) to two life stages (swim-up fry and young juveniles) of rainbow trout in standardized hard and soft water. The measure of acute toxicity was expressed as both the 96-hour median lethal concentration (96-h LC50, based on mortality) and 96-h median e
Relative tolerance of different life stages of Rio Grande silvery minnow to elevated water temperatures
Response of Rio Grande silvery minnow from three year classes and four age groups to one of seven temperatures (nominally; 28.5, 30.0, 31.5, 33.0, 34.5, 36.0, and 37.5ºC) and a control (25ºC) for 96 hours under static conditions
Filter Total Items: 25
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—Annual report 2014
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project scope of work is dev
Authors
Aaron J. Delonay, Kimberly A. Chojnacki, Robert B. Jacobson, Patrick J. Braaten, Kevin J. Buhl, Caroline M. Elliott, Susannah O. Erwin, Jacob D.A. Faulkner, James S. Candrl, David B. Fuller, Kenneth M. Backes, Tyler M. Haddix, Matthew L. Rugg, Christopher J. Wesolek, Brandon L. Eder, Gerald E. Mestl
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—Annual report 2013
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of pallid sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project scope of work
Authors
Aaron J. Delonay, Robert B. Jacobson, Kimberly A. Chojnacki, Patrick J. Braaten, Kevin J. Buhl, Brandon L Eder, Caroline M. Elliott, Susannah O. Erwin, David B. Fuller, Tyler M. Haddix, Hallie L.A. Ladd, Gerald E. Mestl, Diana M. Papoulias, Jason C. Rhoten, Christopher J. Wesolek, Mark L. Wildhaber
Do laboratory species protect endangered species? Interspecies variation in responses to 17β-estradiol, a model endocrine active compound
Although the effects of estrogens on model laboratory species are well documented, their utility as surrogates for other species, including those listed as endangered, are less clear. Traditionally, conservation policies are evaluated based on model organism responses but are intended to protect all species in an environment. We tested the hypothesis that the endangered Rio Grande silvery minnow (
Authors
Zachary G. Jorgenson, Kevin J. Buhl, Stephen E. Bartell, Heiko L. Schoenfuss
Ammonia causes decreased brain monoamines in fathead minnows (Pimephales promelas)
Hyperammonemia, arising from variety of disorders, leads to severe neurological dysfunction. The mechanisms of ammonia toxicity in brain are not completely understood. This study investigated the effects of ammonia on monoaminergic systems in brains of fathead minnows (Pimephales promelas). Fish serve as a good model system to investigate hyperammonemic effects on brain function since no liver man
Authors
Patrick J. Ronan, Mark P. Gaikowski, Steven J. Hamilton, Kevin J. Buhl, Cliff H. Summers
Reduced growth and survival of larval razorback sucker fed selenium-laden zooplankton
Four groups of larval razorback sucker, an endangered fish, were exposed to selenium-laden zooplankton and survival, growth, and whole-body residues were measured. Studies were conducted with 5, 10, 24, and 28-day-old larvae fed zooplankton collected from six sites adjacent to the Green River, Utah. Water where zooplankton were collected had selenium concentrations ranging from <0.4 to 78 μg/L, an
Authors
Steven J. Hamilton, Kevin J. Buhl, Fern A. Bullard, Susan McDonald
Selenium impacts on razorback sucker, Colorado: Colorado River: III. Larvae
Razorback sucker (Xyrauchen texanus) larvae from adults exposed to selenium at three sites near Grand Junction, Colorado, for 9 months were used in a 30-day waterborne and dietary selenium study. Selenium concentrations in water averaged <1.6 μg/L from 24-Road, 0.9 μg/L from Horsethief, 5.5 μg/L from Adobe Creek, and 10.7 μg/L from the North Pond. Selenium in dietary items averaged 2.7 μg/g in bri
Authors
Steven J. Hamilton, Kathy M. Holley, Kevin J. Buhl, Fern A. Bullard
Toxicity of selenium and other elements in food organisms to razorback sucker larvae
Elevated selenium concentrations documented in water, sediment, and biota in irrigation drain water studies by U.S. Department of the Interior agencies and academia have raised concerns that selenium may be adversely affecting endangered fish in the upper Colorado River basin. The objective of the study was to determine the effects on endangered razorback sucker (Xyrauchen texanus) larvae from exp
Authors
Steven J. Hamilton, Kathy M. Holley, Kevin J. Buhl, Fern A. Bullard, L. Ken Weston, Susan F. McDonald
Impact of selenium and other trace elements on the endangered adult razorback sucker
A study was conducted with endangered the razorback sucker (Xyrauchen texanus) to determine if environmental exposure to selenium in flooded bottomland sites affected survival, growth, and egg-hatching success. Adults were stocked at three sites adjacent to the Colorado River near Grand Junction, Colorado, in July 1996: hatchery ponds at Horsethief Canyon State Wildlife Area (referred to here as H
Authors
Steven J. Hamilton, Kathy M. Holley, Kevin J. Buhl, Fern A. Bullard, L. Ken Weston, Susan F. McDonald
Acute toxicity of fire-control chemicals, nitrogenous chemicals, and surfactants to rainbow trout
Laboratory studies were conducted to determine the acute toxicity of three ammonia-based fire retardants (Fire-Trol LCA-F, Fire-Trol LCM-R, and Phos-Chek 259F), five surfactant-based fire-suppressant foams (FireFoam 103B, FireFoam 104, Fire Quench, ForExpan S, and Pyrocap B-136), three nitrogenous chemicals (ammonia, nitrate, and nitrite), and two anionic surfactants (linear alkylbenzene sulfonate
Authors
Kevin J. Buhl, Steven J. Hamilton
Chronic toxicity and hazard assessment of an inorganic mixture simulating irrigation drainwater to razorback sucker and bonytail
We conducted two 90 day chronic toxicity studies with two endangered fish, razorback sucker and bonytail. Swim-up larvae were exposed in a reconstituted water simulating the middle Green River. The toxicant mixture simulated the environmental ratio and concentrations of inorganics reported in a Department of the Interior study for the mouth of Ashley Creek on the Green River, and was composed of n
Authors
Steven J. Hamilton, Kevin J. Buhl, Fern A. Bullard, Edward E. Little
Acute toxicity of fire-retardant and foam-suppressant chemicals to early life stages of chinook salmon (Oncorhynchus tshawytscha)
Laboratorys studies were conducted to determine the acute toxicity of three fire retardants (Fire-Trol GTS-R, Fire-Trol LCG-R, and Phos-Chek D75-F), and two fire-suppressant foams (Phos-Chek WD-881 and Ansul Silv-Ex) to early life stages of chinook salmon, Oncorhynchus tshawytscha, in hard and soft water. Regardless of water type, swim-up fry and juveniles (60 and 90 d posthatch) exhibited similar
Authors
Kevin J. Buhl, Steven J. Hamilton
Hazard assessment of inorganics, individually and in mixtures, to two endangered fish in the San Juan River, New Mexico
Acute toxicity tests were conducted for 96 h with larval Colorado squawfish (Ptychocheilus lucius) and razorback sucker (Xyrauchen texanus) in a reconstituted water quality simulating the San Juan River near Shiprock, New Mexico, to determine biological effect concentrations. Tests were conducted with arsenate, copper, selenate, selenite, zinc, and five mixtures of seven to nine inorganics simulat
Authors
Steven J. Hamilton, Kevin J. Buhl
Science and Products
- Data
Biological and chemical data from laboratory toxicity exposures of rainbow trout to four wildland fire retardants
We determined the acute toxicity of four wildland fire retardants (Phos-Chek 259-Fx, Phos-Chek MVP-Fx, and Phos-Chek LC-95A-Fx, and Phos-Chek LC-95A-R) to two life stages (swim-up fry and young juveniles) of rainbow trout in standardized hard and soft water. The measure of acute toxicity was expressed as both the 96-hour median lethal concentration (96-h LC50, based on mortality) and 96-h median eRelative tolerance of different life stages of Rio Grande silvery minnow to elevated water temperatures
Response of Rio Grande silvery minnow from three year classes and four age groups to one of seven temperatures (nominally; 28.5, 30.0, 31.5, 33.0, 34.5, 36.0, and 37.5ºC) and a control (25ºC) for 96 hours under static conditions - Publications
Filter Total Items: 25
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—Annual report 2014
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project scope of work is devAuthorsAaron J. Delonay, Kimberly A. Chojnacki, Robert B. Jacobson, Patrick J. Braaten, Kevin J. Buhl, Caroline M. Elliott, Susannah O. Erwin, Jacob D.A. Faulkner, James S. Candrl, David B. Fuller, Kenneth M. Backes, Tyler M. Haddix, Matthew L. Rugg, Christopher J. Wesolek, Brandon L. Eder, Gerald E. MestlEcological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—Annual report 2013
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of pallid sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project scope of workAuthorsAaron J. Delonay, Robert B. Jacobson, Kimberly A. Chojnacki, Patrick J. Braaten, Kevin J. Buhl, Brandon L Eder, Caroline M. Elliott, Susannah O. Erwin, David B. Fuller, Tyler M. Haddix, Hallie L.A. Ladd, Gerald E. Mestl, Diana M. Papoulias, Jason C. Rhoten, Christopher J. Wesolek, Mark L. WildhaberDo laboratory species protect endangered species? Interspecies variation in responses to 17β-estradiol, a model endocrine active compound
Although the effects of estrogens on model laboratory species are well documented, their utility as surrogates for other species, including those listed as endangered, are less clear. Traditionally, conservation policies are evaluated based on model organism responses but are intended to protect all species in an environment. We tested the hypothesis that the endangered Rio Grande silvery minnow (AuthorsZachary G. Jorgenson, Kevin J. Buhl, Stephen E. Bartell, Heiko L. SchoenfussAmmonia causes decreased brain monoamines in fathead minnows (Pimephales promelas)
Hyperammonemia, arising from variety of disorders, leads to severe neurological dysfunction. The mechanisms of ammonia toxicity in brain are not completely understood. This study investigated the effects of ammonia on monoaminergic systems in brains of fathead minnows (Pimephales promelas). Fish serve as a good model system to investigate hyperammonemic effects on brain function since no liver manAuthorsPatrick J. Ronan, Mark P. Gaikowski, Steven J. Hamilton, Kevin J. Buhl, Cliff H. SummersReduced growth and survival of larval razorback sucker fed selenium-laden zooplankton
Four groups of larval razorback sucker, an endangered fish, were exposed to selenium-laden zooplankton and survival, growth, and whole-body residues were measured. Studies were conducted with 5, 10, 24, and 28-day-old larvae fed zooplankton collected from six sites adjacent to the Green River, Utah. Water where zooplankton were collected had selenium concentrations ranging from <0.4 to 78 μg/L, anAuthorsSteven J. Hamilton, Kevin J. Buhl, Fern A. Bullard, Susan McDonaldSelenium impacts on razorback sucker, Colorado: Colorado River: III. Larvae
Razorback sucker (Xyrauchen texanus) larvae from adults exposed to selenium at three sites near Grand Junction, Colorado, for 9 months were used in a 30-day waterborne and dietary selenium study. Selenium concentrations in water averaged <1.6 μg/L from 24-Road, 0.9 μg/L from Horsethief, 5.5 μg/L from Adobe Creek, and 10.7 μg/L from the North Pond. Selenium in dietary items averaged 2.7 μg/g in briAuthorsSteven J. Hamilton, Kathy M. Holley, Kevin J. Buhl, Fern A. BullardToxicity of selenium and other elements in food organisms to razorback sucker larvae
Elevated selenium concentrations documented in water, sediment, and biota in irrigation drain water studies by U.S. Department of the Interior agencies and academia have raised concerns that selenium may be adversely affecting endangered fish in the upper Colorado River basin. The objective of the study was to determine the effects on endangered razorback sucker (Xyrauchen texanus) larvae from expAuthorsSteven J. Hamilton, Kathy M. Holley, Kevin J. Buhl, Fern A. Bullard, L. Ken Weston, Susan F. McDonaldImpact of selenium and other trace elements on the endangered adult razorback sucker
A study was conducted with endangered the razorback sucker (Xyrauchen texanus) to determine if environmental exposure to selenium in flooded bottomland sites affected survival, growth, and egg-hatching success. Adults were stocked at three sites adjacent to the Colorado River near Grand Junction, Colorado, in July 1996: hatchery ponds at Horsethief Canyon State Wildlife Area (referred to here as HAuthorsSteven J. Hamilton, Kathy M. Holley, Kevin J. Buhl, Fern A. Bullard, L. Ken Weston, Susan F. McDonaldAcute toxicity of fire-control chemicals, nitrogenous chemicals, and surfactants to rainbow trout
Laboratory studies were conducted to determine the acute toxicity of three ammonia-based fire retardants (Fire-Trol LCA-F, Fire-Trol LCM-R, and Phos-Chek 259F), five surfactant-based fire-suppressant foams (FireFoam 103B, FireFoam 104, Fire Quench, ForExpan S, and Pyrocap B-136), three nitrogenous chemicals (ammonia, nitrate, and nitrite), and two anionic surfactants (linear alkylbenzene sulfonateAuthorsKevin J. Buhl, Steven J. HamiltonChronic toxicity and hazard assessment of an inorganic mixture simulating irrigation drainwater to razorback sucker and bonytail
We conducted two 90 day chronic toxicity studies with two endangered fish, razorback sucker and bonytail. Swim-up larvae were exposed in a reconstituted water simulating the middle Green River. The toxicant mixture simulated the environmental ratio and concentrations of inorganics reported in a Department of the Interior study for the mouth of Ashley Creek on the Green River, and was composed of nAuthorsSteven J. Hamilton, Kevin J. Buhl, Fern A. Bullard, Edward E. LittleAcute toxicity of fire-retardant and foam-suppressant chemicals to early life stages of chinook salmon (Oncorhynchus tshawytscha)
Laboratorys studies were conducted to determine the acute toxicity of three fire retardants (Fire-Trol GTS-R, Fire-Trol LCG-R, and Phos-Chek D75-F), and two fire-suppressant foams (Phos-Chek WD-881 and Ansul Silv-Ex) to early life stages of chinook salmon, Oncorhynchus tshawytscha, in hard and soft water. Regardless of water type, swim-up fry and juveniles (60 and 90 d posthatch) exhibited similarAuthorsKevin J. Buhl, Steven J. HamiltonHazard assessment of inorganics, individually and in mixtures, to two endangered fish in the San Juan River, New Mexico
Acute toxicity tests were conducted for 96 h with larval Colorado squawfish (Ptychocheilus lucius) and razorback sucker (Xyrauchen texanus) in a reconstituted water quality simulating the San Juan River near Shiprock, New Mexico, to determine biological effect concentrations. Tests were conducted with arsenate, copper, selenate, selenite, zinc, and five mixtures of seven to nine inorganics simulatAuthorsSteven J. Hamilton, Kevin J. Buhl