Robin D Calfee
Robin Calfee is a Research Biologist at the Columbia Environmental Research Center.
Since joining the USGS in 1991, Robin has devoted her career to investigating the impacts of contaminants to various aquatic organisms and developing methods for quantifying fish swimming behavior. Currently, her research focuses on testing the effectiveness of different control strategies for Asian Carp such as auditory stimuli, food attractants and supplemental capture techniques.
Education and Certifications
M.S. Aquatic Biology, Department of Biology, Missouri State University 1996
B.S. Biology, Department of Biology, Missouri State University 1991
Science and Products
Filter Total Items: 36
Solar UV radiation and amphibians: Factors mitigating injury
No abstract available.
Authors
Edward E. Little, Robin D. Calfee
The effects of simulated solar UVB radiation on early developmental stages of the Northwestern Salamander (Ambystoma gracile) from three lakes
Solar ultraviolet radiation (UV) has received much attention as a factor that could play a role in amphibian population declines. UV can be hazardous to some amphibians, but the resultant effects depend on a variety of environmental and behavioral factors. In this study, the potential effects of UV on the Northwestern Salamander, Ambystoma gracile, from three lakes were assessed in the laboratory
Authors
Robin D. Calfee, Edward E. Little, Christopher A. Pearl, Robert L. Hoffman
Toxicity of cobalt-complexed cyanide to Oncorhynchus mykiss, Daphnia magna, and Ceriodaphnia dubia: Potentiation by ultraviolet radiation and attenuation by dissolved organic carbon and adaptive UV tolerance
BackgroundCobalt cyanide complexes often result when ore is treated with cyanide solutions to extract gold and other metals. These have recently been discovered in low but significant concentrations in effluents from gold leach operations. This study was conducted to determine the potential toxicity of cobalt-cyanide complexes to freshwater organisms and the extent to which ultraviolet radiation (
Authors
Edward E. Little, Robin D. Calfee, Peter M. Theodorakos, Zoe Ann Brown, Craig A. Johnson
Sensitivity of two salamander (Ambystoma) species to ultraviolet radiation
Increased ultraviolet-B (UV-B) radiation reaching the Earth's surface has been implicated in amphibian declines. Recent studies have shown that many amphibian species have differences in sensitivity depending on developmental stage. Embryos and larvae of Ambystoma maculatum (Spotted Salamander) and larvae of Ambystoma talpoideum (Mole Salamander) were exposed to five simulated UV-B treatments in c
Authors
R.D. Calfee, C. M. Bridges, E. E. Little
Behavioral response of young rainbow trout (Oncorhynchus mykiss) to forest fire-retardant chemicals in the laboratory
Fire-retardant chemicals often are applied in relatively pristine and environmentally sensitive areas that are potentially inhabited by endangered or threatened aquatic species. Avoidance of contaminants is an adaptive behavior that may reduce exposure to harmful conditions. We evaluated the avoidance responses of rainbow trout (Oncorhynchus mykiss) to concentrations of fire-retardant chemicals an
Authors
Jason B. Wells, Edward E. Little, Robin D. Calfee
Effects of ultraviolet radiation on toad early life stages
BackgroundExposure to harmful levels of ultraviolet-B radiation (UVB), a component of solar radiation, has been suggested as a potential cause of amphibian declines.MethodsWe measured solar radiation (UVB, ultraviolet-A, and visible) wavebands in breeding ponds of Bufo boreas (boreal toad, a montane species that has undergone severe population declines) and Bufo woodhousii (Woodhouse’s toad, a pla
Authors
E. E. Little, R.D. Calfee, D. L. Fabacher, C. Carey, V. S. Blazer, E.M. Middleton
Effects of a fire-retardant chemical to fathead minnows in experimental streams
BackgroundEach year millions of liters of fire-retardant chemicals are applied to wildfires across the nation. Recent laboratory studies with long-term fire-retardant chemicals indicate a significant photoenhanced toxicity of products containing sodium ferrocyanide corrosion inhibitors. Our objective of this study was to determine the toxicity of fire-retardant chemicals to fathead minnows during
Authors
R.D. Calfee, E. E. Little
The role of the egg jelly coat in protecting Hyla regilla and Bufo canorus embryos from Ultraviolet B radiation during development
Background. Previous studies have suggested that Ultraviolet B (UVB) radiation may play a role in amphibian population declines. Some of these studies also indicate that egg hatching success is unaltered in some species of anurans as a result of UVB exposure. It has been proposed that the egg mass jelly provides photoprotection to the developing embryos. Methods. Direct spectrophotometric scans of
Authors
L.J. Hansen, D. L. Fabacher, R. Calfee
Quantifying solar spectral irradiance in aquatic habitats for the assessment of photoenhanced toxicity
The spectra and intensity of solar radiation (solar spectral irradiance [SSI]) was quantified in selected aquatic habitats in the vicinity of an oil field on the California coast. Solar spectral irradiance measurements consisted of spectral scans (280–700 nm) and radiometric measurements of ultraviolet (UV): UVB (280–320 nm) and UVA (320–400 nm). Solar spectral irradiance measurements were taken a
Authors
M.G. Barron, E. E. Little, R. Calfee, S. Diamond
Assessment of the photoenhanced toxicity of a weathered oil to the tidewater silverside
Studies were conducted to determine the interactive toxicity of a water-accommodated fraction (WAF) of a weathered middle distillate petroleum and solar radiation to an estuarine organism, the tidewater silverside (Menidia beryllina). Juvenile silversides were monitored for survival and growth during a 7-d static renewal exposure to dilutions of WAFs of an environmentally weathered oil collected i
Authors
Edward E. Little, Laverne Cleveland, Robin D. Calfee, Mace G. Barron
Photoenhanced toxicity of weathered oil to Mysidopsis bahia
The toxicity of a water-accommodated fraction (WAF) prepared from weathered oil was assessed in a 7-day static renewal test with Mysidopsis bahia. Weathered oil was collected from the 5 x monitoring well at the Guadalupe oil field. Solar ultraviolet and visible light intensities were measured in various habitats in the vicinity of the weathered oil sample collection site, and the resultant measure
Authors
L. Cleveland, E. E. Little, R.D. Calfee, M.G. Barron
Photoenhanced toxicity of a weathered oil on Ceriodaphnia dubia reproduction
Traditionally, the toxic effects of petroleum have been investigated by conducting studies in the absence of ultraviolet radiation (UV). Photomediated toxicity is often not considered, and the toxic effects of an oil spill can be grossly underestimated. The toxicity of a weathered oil collected from a monitoring well at an abandoned oil field toCeriodaphnia dubia was examined in the presence of UV
Authors
R.D. Calfee, E. E. Little, L. Cleveland, M.G. Barron
Science and Products
Filter Total Items: 36
Solar UV radiation and amphibians: Factors mitigating injury
No abstract available.
Authors
Edward E. Little, Robin D. Calfee
The effects of simulated solar UVB radiation on early developmental stages of the Northwestern Salamander (Ambystoma gracile) from three lakes
Solar ultraviolet radiation (UV) has received much attention as a factor that could play a role in amphibian population declines. UV can be hazardous to some amphibians, but the resultant effects depend on a variety of environmental and behavioral factors. In this study, the potential effects of UV on the Northwestern Salamander, Ambystoma gracile, from three lakes were assessed in the laboratory
Authors
Robin D. Calfee, Edward E. Little, Christopher A. Pearl, Robert L. Hoffman
Toxicity of cobalt-complexed cyanide to Oncorhynchus mykiss, Daphnia magna, and Ceriodaphnia dubia: Potentiation by ultraviolet radiation and attenuation by dissolved organic carbon and adaptive UV tolerance
BackgroundCobalt cyanide complexes often result when ore is treated with cyanide solutions to extract gold and other metals. These have recently been discovered in low but significant concentrations in effluents from gold leach operations. This study was conducted to determine the potential toxicity of cobalt-cyanide complexes to freshwater organisms and the extent to which ultraviolet radiation (
Authors
Edward E. Little, Robin D. Calfee, Peter M. Theodorakos, Zoe Ann Brown, Craig A. Johnson
Sensitivity of two salamander (Ambystoma) species to ultraviolet radiation
Increased ultraviolet-B (UV-B) radiation reaching the Earth's surface has been implicated in amphibian declines. Recent studies have shown that many amphibian species have differences in sensitivity depending on developmental stage. Embryos and larvae of Ambystoma maculatum (Spotted Salamander) and larvae of Ambystoma talpoideum (Mole Salamander) were exposed to five simulated UV-B treatments in c
Authors
R.D. Calfee, C. M. Bridges, E. E. Little
Behavioral response of young rainbow trout (Oncorhynchus mykiss) to forest fire-retardant chemicals in the laboratory
Fire-retardant chemicals often are applied in relatively pristine and environmentally sensitive areas that are potentially inhabited by endangered or threatened aquatic species. Avoidance of contaminants is an adaptive behavior that may reduce exposure to harmful conditions. We evaluated the avoidance responses of rainbow trout (Oncorhynchus mykiss) to concentrations of fire-retardant chemicals an
Authors
Jason B. Wells, Edward E. Little, Robin D. Calfee
Effects of ultraviolet radiation on toad early life stages
BackgroundExposure to harmful levels of ultraviolet-B radiation (UVB), a component of solar radiation, has been suggested as a potential cause of amphibian declines.MethodsWe measured solar radiation (UVB, ultraviolet-A, and visible) wavebands in breeding ponds of Bufo boreas (boreal toad, a montane species that has undergone severe population declines) and Bufo woodhousii (Woodhouse’s toad, a pla
Authors
E. E. Little, R.D. Calfee, D. L. Fabacher, C. Carey, V. S. Blazer, E.M. Middleton
Effects of a fire-retardant chemical to fathead minnows in experimental streams
BackgroundEach year millions of liters of fire-retardant chemicals are applied to wildfires across the nation. Recent laboratory studies with long-term fire-retardant chemicals indicate a significant photoenhanced toxicity of products containing sodium ferrocyanide corrosion inhibitors. Our objective of this study was to determine the toxicity of fire-retardant chemicals to fathead minnows during
Authors
R.D. Calfee, E. E. Little
The role of the egg jelly coat in protecting Hyla regilla and Bufo canorus embryos from Ultraviolet B radiation during development
Background. Previous studies have suggested that Ultraviolet B (UVB) radiation may play a role in amphibian population declines. Some of these studies also indicate that egg hatching success is unaltered in some species of anurans as a result of UVB exposure. It has been proposed that the egg mass jelly provides photoprotection to the developing embryos. Methods. Direct spectrophotometric scans of
Authors
L.J. Hansen, D. L. Fabacher, R. Calfee
Quantifying solar spectral irradiance in aquatic habitats for the assessment of photoenhanced toxicity
The spectra and intensity of solar radiation (solar spectral irradiance [SSI]) was quantified in selected aquatic habitats in the vicinity of an oil field on the California coast. Solar spectral irradiance measurements consisted of spectral scans (280–700 nm) and radiometric measurements of ultraviolet (UV): UVB (280–320 nm) and UVA (320–400 nm). Solar spectral irradiance measurements were taken a
Authors
M.G. Barron, E. E. Little, R. Calfee, S. Diamond
Assessment of the photoenhanced toxicity of a weathered oil to the tidewater silverside
Studies were conducted to determine the interactive toxicity of a water-accommodated fraction (WAF) of a weathered middle distillate petroleum and solar radiation to an estuarine organism, the tidewater silverside (Menidia beryllina). Juvenile silversides were monitored for survival and growth during a 7-d static renewal exposure to dilutions of WAFs of an environmentally weathered oil collected i
Authors
Edward E. Little, Laverne Cleveland, Robin D. Calfee, Mace G. Barron
Photoenhanced toxicity of weathered oil to Mysidopsis bahia
The toxicity of a water-accommodated fraction (WAF) prepared from weathered oil was assessed in a 7-day static renewal test with Mysidopsis bahia. Weathered oil was collected from the 5 x monitoring well at the Guadalupe oil field. Solar ultraviolet and visible light intensities were measured in various habitats in the vicinity of the weathered oil sample collection site, and the resultant measure
Authors
L. Cleveland, E. E. Little, R.D. Calfee, M.G. Barron
Photoenhanced toxicity of a weathered oil on Ceriodaphnia dubia reproduction
Traditionally, the toxic effects of petroleum have been investigated by conducting studies in the absence of ultraviolet radiation (UV). Photomediated toxicity is often not considered, and the toxic effects of an oil spill can be grossly underestimated. The toxicity of a weathered oil collected from a monitoring well at an abandoned oil field toCeriodaphnia dubia was examined in the presence of UV
Authors
R.D. Calfee, E. E. Little, L. Cleveland, M.G. Barron