Brittany Perrotta, PhD
Dr. Brittany Perrotta is a Research Biologist at the Columbia Environmental Research Center.
Brittany is broadly interested in understanding how organisms, community assemblages (from microbial to macroinvertebrate), and ecosystems respond to contaminants. She integrates toxicology assessments, host microbiome, aquatic-terrestrial linkages, and food webs spanning lab, mesocosm, and field experiments.
Professional Experience
2021-2023, Postdoctoral Research Fellow, McMaster University
2021-2023, Volunteer, USGS Columbia Environmental Research Center
2020-2021, Student Services Contractor, USGS Columbia Environmental Research Center
Education and Certifications
Ph.D. in Biology, Baylor University
B.S. in Integrative Biology with Research Distinction (minor Spanish), University of Illinois Urbana- Champaign
Affiliations and Memberships*
Society for Environmental Chemistry and Toxicology
Society for Freshwater Science
Science and Products
Effects of chronic metal exposure and metamorphosis on the microbiomes of larval and adult insects and riparian spiders through the aquatic-riparian food web Effects of chronic metal exposure and metamorphosis on the microbiomes of larval and adult insects and riparian spiders through the aquatic-riparian food web
The macroinvertebrate microbiome controls various aspects of the host's physiology, from regulation of environmental contaminants to reproductive output. Aquatic insects provide critical nutritional subsidies linking aquatic and riparian food webs while simultaneously serving as a contaminant pathway for riparian insectivores in polluted ecosystems. Previous studies have characterized...
Authors
Brittany G. Perrotta, Karen A. Kidd, Amy M. Marcarelli, Gordon Paterson, David Walters
Metal-rich lacustrine sediments from legacy mining perpetuate copper exposure to aquatic-riparian food webs Metal-rich lacustrine sediments from legacy mining perpetuate copper exposure to aquatic-riparian food webs
Historic copper mining left a legacy of metal-rich tailings resulting in ecological impacts along and within Torch Lake, an area of concern in the Keweenaw Peninsula, Michigan, USA. Given the toxicity of copper to invertebrates, this study assessed the influence of this legacy on present day nearshore aquatic and terrestrial ecosystems. We measured the metal (Co, Cu, Ni, Zn, Cd) and...
Authors
Brittany G. Perrotta, Karen A. Kidd, Kate M. Campbell, Marie Noële Croteau, Tyler Kane, Amy M. Marcarelli, R. Blaine McCleskey, Gordon Paterson, Craig A. Stricker, David Walters
Seasonal differences and grazing pressure alter the fate of gold nanoparticles in a microcosm experiment Seasonal differences and grazing pressure alter the fate of gold nanoparticles in a microcosm experiment
Gold nanoparticles (AuNPs) are used as models to track and predict NP fates and effects in ecosystems. Previous work found that aquatic macrophytes and their associated biofilm primarily drove the fate of AuNPs within aquatic ecosystems and that seasonality was an important abiotic factor in the fate of AuNPs. Therefore, the present work aims to study if grazers, by feeding on these...
Authors
Christina M. Bergemann, Astrid Avellan, Brittany G. Perrotta, Emily S. Bernhardt, Marie Simonin
Perfluorooctanesulfonate adversely affects a mayfly (Neocloeon triangulifer) at environmentally realistic concentrations Perfluorooctanesulfonate adversely affects a mayfly (Neocloeon triangulifer) at environmentally realistic concentrations
Of the emerging contaminant types thought to threaten freshwater biota, per- and polyfluoroalkyl substances appear to be particularly widespread, and limited studies conducted with these compounds thus far indicate insects may be particularly sensitive to them. This study investigated the short- and long-term effects of two commonly detected compounds on the laboratory-reared mayfly...
Authors
David J. Soucek, Rebecca A. Consbrock, Erin L. Pulster, Brittany G. Perrotta, David Walters, Jeffery Steevens
PCB exposure is associated with reduction of endosymbionts in riparian spider microbiomes PCB exposure is associated with reduction of endosymbionts in riparian spider microbiomes
Microbial communities, including endosymbionts, play diverse and critical roles in host biology and reproduction, but contaminant exposure may cause an imbalance in the microbiome composition with subsequent impacts on host health. Here, we examined whether there was a significant alteration of the microbiome community within two taxa of riparian spiders (Tetragnathidae and Araneidae)...
Authors
Brittany G. Perrotta, Karen A. Kidd, David Walters
Non-USGS Publications**
Bergemann, C.M., Avellan, A., Perrotta, B.G., Bernhardt, E.S., and Simonin, M., 2023, Seasonal differences and grazing pressure alter the fate of gold nanoparticles in a microcosm experiment: Environmental Science & Technology, v. 57, no. 37, p. 13970-13979. https://doi.org/10.1021/acs.est.3c01839
Perrotta, B.G., Simonin, M., Colman, B.P., Anderson, S.M., Baruch, E., Castellon, B.T., Matson, C.W., Bernhardt, E.S., and King, R.S., 2023, Chronic engineered nanoparticle additions alter insect emergence and result in metal flux from aquatic ecosystems into riparian food webs: Environmental Science & Technology, v. 57, no. 21, p. 8085-8095. https://doi.org/10.1021/acs.est.3c00620
Liu, J., Li, J., Wolfe, K., Perrotta, B., and Cobb, G.P., 2021, Mobility of arsenic in the growth media of rice plants (Oryza sativa subsp. japonica. ‘Koshihikari’) with exposure to copper oxide nanoparticles in a life-cycle greenhouse study: Science of The Total Environment, v. 774, p. 145620. https://doi.org/10.1016/j.scitotenv.2021.145620
Perrotta, B.G., Simonin, M., Back, J.A., Anderson, S.M., Avellan, A., Bergemann, C.M., Castellon, B.T., Colman, B.P., Lowry, G.V., Matson, C.W., Bernhardt, E.S., and King, R.S., 2020, Copper and gold nanoparticles increase nutrient excretion rates of primary consumers: Environmental Science & Technology, v. 54, no. 16, p. 10170-10180. https://doi.org/10.1021/acs.est.0c02197
Avellan, A., Simonin, M., Anderson, S.M., Geitner, N.K., Bossa, N., Spielman-Sun, E., Bernhardt, E.S., Castellon, B.T., Colman, B.P., Cooper, J.L., Ho, M., Hochella, M.F., Jr., Hsu-Kim, H., Inoue, S., King, R.S., Laughton, S., Matson, C.W., Perrotta, B.G., Richardson, C.J., Unrine, J.M., Wiesner, M.R., and Lowry, G.V., 2020, Differential reactivity of copper- and gold-based nanomaterials controls their seasonal biogeochemical cycling and fate in a freshwater wetland mesocosm: Environmental Science & Technology, v. 54, no. 3, p. 1533-1544. https://doi.org/10.1021/acs.est.9b05097
Greathouse, K.L., White, J.R., Padgett, R.N., Perrotta, B.G., Jenkins, G.D., Chia, N., and Chen, J., 2019, Gut microbiome meta-analysis reveals dysbiosis is independent of body mass index in predicting risk of obesity-associated CRC: BMJ Open Gastroenterology, v. 6, no. 1, p. e000247. https://doi.org/10.1136/bmjgast-2018-000247
Simonin, M., Colman, B.P., Anderson, S.M., King, R.S., Ruis, M.T., Avellan, A., Bergemann, C.M., Perrotta, B.G., Geitner, N.K., Ho, M., de la Barrera, B., Unrine, J.M., Lowry, G.V., Richardson, C.J., Wiesner, M.R., and Bernhardt, E.S., 2018, Engineered nanoparticles interact with nutrients to intensify eutrophication in a wetland ecosystem experiment: Ecological Applications, v. 28, no. 6, p. 1435-1449. https://doi.org/10.1002/eap.1742
Geitner, N.K., Cooper, J.L., Avellan, A., Castellon, B.T., Perrotta, B.G., Bossa, N., Simonin, M., Anderson, S.M., Inoue, S., Hochella, M.F., Jr., Richardson, C.J., Bernhardt, E.S., Lowry, G.V., Ferguson, P.L., Matson, C.W., King, R.S., Unrine, J.M., Wiesner, M.R., and Hsu-Kim, H., 2018, Size-based differential transport, uptake, and mass distribution of ceria (CeO2) nanoparticles in wetland mesocosms: Environmental Science & Technology, v. 52, no. 17, p. 9768-9776. https://doi.org/10.1021/acs.est.8b02040.
Greathouse, K.L., White, J.R., Padgett, R.N., Perrotta, B.G., Jenkins, G.D., Chia, N., and Chen, J., 2018, Gut microbiome meta-analysis reveals dysbiosis is independent of body mass index in predicting risk of obesity-associated CRC: bioRxiv, p. 367466. https://doi.org/10.1136/bmjgast-2018-000247
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Comprehensive Research on PFAS Exposomics and Risk Assessment
The Columbia Environmental Research Center (CERC) conducts cutting-edge research on per- and polyfluoroalkyl substances (PFAS) through the lens of the One Health Paradigm, emphasizing the interconnectedness of human, animal, and environmental health.
Water Quality Data from the Clinton River watershed near Detroit, MI Water Quality Data from the Clinton River watershed near Detroit, MI
This data release contains water quality data collected in the field during an in-situ mussel exposure. We collected dissolved oxygen, temperature, conductivity, and water depth data using a sensor silo to assess habitat conditions for a potential mussel restoration. Additionally, we collected particle count data to quantify food availability for mussels and water quality data...
Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021 Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021
Two laboratory experiments were conducted to understand PFOS (perfluorooctanesulfonic acid) bioaccumulation in freshwater benthic diatoms (Mayamaea atomus). The first experiment tested bioconcentration at multiple PFOS concentrations (0, 0.01, 0.1, 1, 10, 100 micrograms per liter) after 7 days of exposure. The second explored uptake and depuration of 0.1 micrograms per liter PFOS at...
Pesticide concentrations in multiple stream matrices collected near Mead, Nebraska, 2022 Pesticide concentrations in multiple stream matrices collected near Mead, Nebraska, 2022
The AltEn bioenergy plant (Mead, Nebraska, USA) previously (2015 to 2021) generated ethanol from almost 100% unused/expired treated corn seeds. This use of treated corn seeds as a feedstock for ethanol production resulted in accumulation of large amounts of contaminated wastewater and solid residue at the plant, a portion of which was applied to surrounding farmland. To better understand...
Water quality, and periphyton growth, copper concentration, and community structure data associated with a nutrient diffusing substrate experiment conducted in Pear Lake, Sequoia National Park, California in 2022 Water quality, and periphyton growth, copper concentration, and community structure data associated with a nutrient diffusing substrate experiment conducted in Pear Lake, Sequoia National Park, California in 2022
This dataset includes files associated with a 21-day nutrient diffusing substrate experiment run in Pear Lake of Sequoia National Park, California in summer 2022. The experiment was designed to evaluate the effects of different treatment levels of a macronutrient (nitrogen) and a micronutrient (copper) on periphyton growth and community structure in an alpine lake. While the effects of...
16S rRNA whole-organism microbiome sequencing for larval insects, adult insects, and riparian spiders collected from Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021 16S rRNA whole-organism microbiome sequencing for larval insects, adult insects, and riparian spiders collected from Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021
This data release includes sampling location data, the information about sequenced organisms and the SRA accession number for the 16S whole-organism sequencing data for larval aquatic insects, emergent adult insects, and two riparian spiders from Torch Lake and Gratiot Lake (N=3 sites at each Lake). Torch Lake (Houghton County, Keweenaw Peninsula, Michigan, USA) is a Great Lakes Area of...
Lake depth profile, water quality, sediment, periphyton, tadpole (Pseudacris regilla), and landscape data from six lakes and two stream sites of the Tokopah Basin in Sequoia National Park, California, 2021-2022 Lake depth profile, water quality, sediment, periphyton, tadpole (Pseudacris regilla), and landscape data from six lakes and two stream sites of the Tokopah Basin in Sequoia National Park, California, 2021-2022
This dataset includes a collection of files related to a project investigating the ecology of six lakes in the Tokopah Basin. The primary purpose of the research project was to understand the dynamics of periphyton growth and the potential relationships with nitrogen and copper concentrations in high elevation lakes of the Sierra Nevada mountains in Sequoia National Park, California...
Water chemistry, stable isotopes, and trace metals in sediment, water and biota in Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021 Water chemistry, stable isotopes, and trace metals in sediment, water and biota in Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021
This data release includes sampling location data, laboratory processed surface water chemistry data (anions, cations, total nitrogen, dissolved organic carbon, deuterium, trace metals), laboratory processed pore water chemistry data (anions, cations, total nitrogen, dissolved organic carbon, trace metals), laboratory process sediment data (trace metals), and whole-body trace metal...
Water chemistry data observed in experimental laboratory mesocosms exposed to different nitrapyrin and nitrogen amendments in the presence or absence of a nitrifier enriched microbial (NEM) community Water chemistry data observed in experimental laboratory mesocosms exposed to different nitrapyrin and nitrogen amendments in the presence or absence of a nitrifier enriched microbial (NEM) community
These data describe the results of a controlled laboratory mesocosm experiment evaluating the effect of nitrapyrin, a nitrification inhibitor, on nitrification in a nitrifier enriched microbial (NEM) community. Parameters described include the water chemistry and nitrapyrin measurement results of experimental mesocosms. Microbial community data is described in a separate data release.
Acute and chronic toxicity of two perfluoroalkyl substances to Neocloeon triangulifer Acute and chronic toxicity of two perfluoroalkyl substances to Neocloeon triangulifer
Dataset consists of 4-day, 14-day, and full life responses of laboratory cultured mayflies (Neocloeon triangulifer) to perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA). Responses were measured as survival at 4 days, 14 days, pre-emergent nymph (PEN) stage, and emergence; 14-day length; number of days to PEN stage, and imago live weight. Water quality and analytical...
Science and Products
Effects of chronic metal exposure and metamorphosis on the microbiomes of larval and adult insects and riparian spiders through the aquatic-riparian food web Effects of chronic metal exposure and metamorphosis on the microbiomes of larval and adult insects and riparian spiders through the aquatic-riparian food web
The macroinvertebrate microbiome controls various aspects of the host's physiology, from regulation of environmental contaminants to reproductive output. Aquatic insects provide critical nutritional subsidies linking aquatic and riparian food webs while simultaneously serving as a contaminant pathway for riparian insectivores in polluted ecosystems. Previous studies have characterized...
Authors
Brittany G. Perrotta, Karen A. Kidd, Amy M. Marcarelli, Gordon Paterson, David Walters
Metal-rich lacustrine sediments from legacy mining perpetuate copper exposure to aquatic-riparian food webs Metal-rich lacustrine sediments from legacy mining perpetuate copper exposure to aquatic-riparian food webs
Historic copper mining left a legacy of metal-rich tailings resulting in ecological impacts along and within Torch Lake, an area of concern in the Keweenaw Peninsula, Michigan, USA. Given the toxicity of copper to invertebrates, this study assessed the influence of this legacy on present day nearshore aquatic and terrestrial ecosystems. We measured the metal (Co, Cu, Ni, Zn, Cd) and...
Authors
Brittany G. Perrotta, Karen A. Kidd, Kate M. Campbell, Marie Noële Croteau, Tyler Kane, Amy M. Marcarelli, R. Blaine McCleskey, Gordon Paterson, Craig A. Stricker, David Walters
Seasonal differences and grazing pressure alter the fate of gold nanoparticles in a microcosm experiment Seasonal differences and grazing pressure alter the fate of gold nanoparticles in a microcosm experiment
Gold nanoparticles (AuNPs) are used as models to track and predict NP fates and effects in ecosystems. Previous work found that aquatic macrophytes and their associated biofilm primarily drove the fate of AuNPs within aquatic ecosystems and that seasonality was an important abiotic factor in the fate of AuNPs. Therefore, the present work aims to study if grazers, by feeding on these...
Authors
Christina M. Bergemann, Astrid Avellan, Brittany G. Perrotta, Emily S. Bernhardt, Marie Simonin
Perfluorooctanesulfonate adversely affects a mayfly (Neocloeon triangulifer) at environmentally realistic concentrations Perfluorooctanesulfonate adversely affects a mayfly (Neocloeon triangulifer) at environmentally realistic concentrations
Of the emerging contaminant types thought to threaten freshwater biota, per- and polyfluoroalkyl substances appear to be particularly widespread, and limited studies conducted with these compounds thus far indicate insects may be particularly sensitive to them. This study investigated the short- and long-term effects of two commonly detected compounds on the laboratory-reared mayfly...
Authors
David J. Soucek, Rebecca A. Consbrock, Erin L. Pulster, Brittany G. Perrotta, David Walters, Jeffery Steevens
PCB exposure is associated with reduction of endosymbionts in riparian spider microbiomes PCB exposure is associated with reduction of endosymbionts in riparian spider microbiomes
Microbial communities, including endosymbionts, play diverse and critical roles in host biology and reproduction, but contaminant exposure may cause an imbalance in the microbiome composition with subsequent impacts on host health. Here, we examined whether there was a significant alteration of the microbiome community within two taxa of riparian spiders (Tetragnathidae and Araneidae)...
Authors
Brittany G. Perrotta, Karen A. Kidd, David Walters
Non-USGS Publications**
Bergemann, C.M., Avellan, A., Perrotta, B.G., Bernhardt, E.S., and Simonin, M., 2023, Seasonal differences and grazing pressure alter the fate of gold nanoparticles in a microcosm experiment: Environmental Science & Technology, v. 57, no. 37, p. 13970-13979. https://doi.org/10.1021/acs.est.3c01839
Perrotta, B.G., Simonin, M., Colman, B.P., Anderson, S.M., Baruch, E., Castellon, B.T., Matson, C.W., Bernhardt, E.S., and King, R.S., 2023, Chronic engineered nanoparticle additions alter insect emergence and result in metal flux from aquatic ecosystems into riparian food webs: Environmental Science & Technology, v. 57, no. 21, p. 8085-8095. https://doi.org/10.1021/acs.est.3c00620
Liu, J., Li, J., Wolfe, K., Perrotta, B., and Cobb, G.P., 2021, Mobility of arsenic in the growth media of rice plants (Oryza sativa subsp. japonica. ‘Koshihikari’) with exposure to copper oxide nanoparticles in a life-cycle greenhouse study: Science of The Total Environment, v. 774, p. 145620. https://doi.org/10.1016/j.scitotenv.2021.145620
Perrotta, B.G., Simonin, M., Back, J.A., Anderson, S.M., Avellan, A., Bergemann, C.M., Castellon, B.T., Colman, B.P., Lowry, G.V., Matson, C.W., Bernhardt, E.S., and King, R.S., 2020, Copper and gold nanoparticles increase nutrient excretion rates of primary consumers: Environmental Science & Technology, v. 54, no. 16, p. 10170-10180. https://doi.org/10.1021/acs.est.0c02197
Avellan, A., Simonin, M., Anderson, S.M., Geitner, N.K., Bossa, N., Spielman-Sun, E., Bernhardt, E.S., Castellon, B.T., Colman, B.P., Cooper, J.L., Ho, M., Hochella, M.F., Jr., Hsu-Kim, H., Inoue, S., King, R.S., Laughton, S., Matson, C.W., Perrotta, B.G., Richardson, C.J., Unrine, J.M., Wiesner, M.R., and Lowry, G.V., 2020, Differential reactivity of copper- and gold-based nanomaterials controls their seasonal biogeochemical cycling and fate in a freshwater wetland mesocosm: Environmental Science & Technology, v. 54, no. 3, p. 1533-1544. https://doi.org/10.1021/acs.est.9b05097
Greathouse, K.L., White, J.R., Padgett, R.N., Perrotta, B.G., Jenkins, G.D., Chia, N., and Chen, J., 2019, Gut microbiome meta-analysis reveals dysbiosis is independent of body mass index in predicting risk of obesity-associated CRC: BMJ Open Gastroenterology, v. 6, no. 1, p. e000247. https://doi.org/10.1136/bmjgast-2018-000247
Simonin, M., Colman, B.P., Anderson, S.M., King, R.S., Ruis, M.T., Avellan, A., Bergemann, C.M., Perrotta, B.G., Geitner, N.K., Ho, M., de la Barrera, B., Unrine, J.M., Lowry, G.V., Richardson, C.J., Wiesner, M.R., and Bernhardt, E.S., 2018, Engineered nanoparticles interact with nutrients to intensify eutrophication in a wetland ecosystem experiment: Ecological Applications, v. 28, no. 6, p. 1435-1449. https://doi.org/10.1002/eap.1742
Geitner, N.K., Cooper, J.L., Avellan, A., Castellon, B.T., Perrotta, B.G., Bossa, N., Simonin, M., Anderson, S.M., Inoue, S., Hochella, M.F., Jr., Richardson, C.J., Bernhardt, E.S., Lowry, G.V., Ferguson, P.L., Matson, C.W., King, R.S., Unrine, J.M., Wiesner, M.R., and Hsu-Kim, H., 2018, Size-based differential transport, uptake, and mass distribution of ceria (CeO2) nanoparticles in wetland mesocosms: Environmental Science & Technology, v. 52, no. 17, p. 9768-9776. https://doi.org/10.1021/acs.est.8b02040.
Greathouse, K.L., White, J.R., Padgett, R.N., Perrotta, B.G., Jenkins, G.D., Chia, N., and Chen, J., 2018, Gut microbiome meta-analysis reveals dysbiosis is independent of body mass index in predicting risk of obesity-associated CRC: bioRxiv, p. 367466. https://doi.org/10.1136/bmjgast-2018-000247
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Comprehensive Research on PFAS Exposomics and Risk Assessment
The Columbia Environmental Research Center (CERC) conducts cutting-edge research on per- and polyfluoroalkyl substances (PFAS) through the lens of the One Health Paradigm, emphasizing the interconnectedness of human, animal, and environmental health.
Water Quality Data from the Clinton River watershed near Detroit, MI Water Quality Data from the Clinton River watershed near Detroit, MI
This data release contains water quality data collected in the field during an in-situ mussel exposure. We collected dissolved oxygen, temperature, conductivity, and water depth data using a sensor silo to assess habitat conditions for a potential mussel restoration. Additionally, we collected particle count data to quantify food availability for mussels and water quality data...
Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021 Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021
Two laboratory experiments were conducted to understand PFOS (perfluorooctanesulfonic acid) bioaccumulation in freshwater benthic diatoms (Mayamaea atomus). The first experiment tested bioconcentration at multiple PFOS concentrations (0, 0.01, 0.1, 1, 10, 100 micrograms per liter) after 7 days of exposure. The second explored uptake and depuration of 0.1 micrograms per liter PFOS at...
Pesticide concentrations in multiple stream matrices collected near Mead, Nebraska, 2022 Pesticide concentrations in multiple stream matrices collected near Mead, Nebraska, 2022
The AltEn bioenergy plant (Mead, Nebraska, USA) previously (2015 to 2021) generated ethanol from almost 100% unused/expired treated corn seeds. This use of treated corn seeds as a feedstock for ethanol production resulted in accumulation of large amounts of contaminated wastewater and solid residue at the plant, a portion of which was applied to surrounding farmland. To better understand...
Water quality, and periphyton growth, copper concentration, and community structure data associated with a nutrient diffusing substrate experiment conducted in Pear Lake, Sequoia National Park, California in 2022 Water quality, and periphyton growth, copper concentration, and community structure data associated with a nutrient diffusing substrate experiment conducted in Pear Lake, Sequoia National Park, California in 2022
This dataset includes files associated with a 21-day nutrient diffusing substrate experiment run in Pear Lake of Sequoia National Park, California in summer 2022. The experiment was designed to evaluate the effects of different treatment levels of a macronutrient (nitrogen) and a micronutrient (copper) on periphyton growth and community structure in an alpine lake. While the effects of...
16S rRNA whole-organism microbiome sequencing for larval insects, adult insects, and riparian spiders collected from Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021 16S rRNA whole-organism microbiome sequencing for larval insects, adult insects, and riparian spiders collected from Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021
This data release includes sampling location data, the information about sequenced organisms and the SRA accession number for the 16S whole-organism sequencing data for larval aquatic insects, emergent adult insects, and two riparian spiders from Torch Lake and Gratiot Lake (N=3 sites at each Lake). Torch Lake (Houghton County, Keweenaw Peninsula, Michigan, USA) is a Great Lakes Area of...
Lake depth profile, water quality, sediment, periphyton, tadpole (Pseudacris regilla), and landscape data from six lakes and two stream sites of the Tokopah Basin in Sequoia National Park, California, 2021-2022 Lake depth profile, water quality, sediment, periphyton, tadpole (Pseudacris regilla), and landscape data from six lakes and two stream sites of the Tokopah Basin in Sequoia National Park, California, 2021-2022
This dataset includes a collection of files related to a project investigating the ecology of six lakes in the Tokopah Basin. The primary purpose of the research project was to understand the dynamics of periphyton growth and the potential relationships with nitrogen and copper concentrations in high elevation lakes of the Sierra Nevada mountains in Sequoia National Park, California...
Water chemistry, stable isotopes, and trace metals in sediment, water and biota in Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021 Water chemistry, stable isotopes, and trace metals in sediment, water and biota in Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021
This data release includes sampling location data, laboratory processed surface water chemistry data (anions, cations, total nitrogen, dissolved organic carbon, deuterium, trace metals), laboratory processed pore water chemistry data (anions, cations, total nitrogen, dissolved organic carbon, trace metals), laboratory process sediment data (trace metals), and whole-body trace metal...
Water chemistry data observed in experimental laboratory mesocosms exposed to different nitrapyrin and nitrogen amendments in the presence or absence of a nitrifier enriched microbial (NEM) community Water chemistry data observed in experimental laboratory mesocosms exposed to different nitrapyrin and nitrogen amendments in the presence or absence of a nitrifier enriched microbial (NEM) community
These data describe the results of a controlled laboratory mesocosm experiment evaluating the effect of nitrapyrin, a nitrification inhibitor, on nitrification in a nitrifier enriched microbial (NEM) community. Parameters described include the water chemistry and nitrapyrin measurement results of experimental mesocosms. Microbial community data is described in a separate data release.
Acute and chronic toxicity of two perfluoroalkyl substances to Neocloeon triangulifer Acute and chronic toxicity of two perfluoroalkyl substances to Neocloeon triangulifer
Dataset consists of 4-day, 14-day, and full life responses of laboratory cultured mayflies (Neocloeon triangulifer) to perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA). Responses were measured as survival at 4 days, 14 days, pre-emergent nymph (PEN) stage, and emergence; 14-day length; number of days to PEN stage, and imago live weight. Water quality and analytical...
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government