Search Results - "Soucek, David J"

Temporal dynamics of benthic macroinvertebrate communities and their response to elevated specific conductance in Appalachian coalfield headwater streams by Boehme, Elizabeth A., Zipper, Carl E., Schoenholtz, Stephen H., Soucek, David J., Timpano, Anthony J.

“…•Benthic macroinvertebrates in 12 streams were sampled up to 14 times over 19 months.•Community structure was altered in streams with elevated specific…”
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Full-life chronic toxicity of sodium salts to the mayfly Neocloeon triangulifer in tests with laboratory cultured food by Soucek, David J., Dickinson, Amy

“…Although insects occur in nearly all freshwater ecosystems, few sensitive insect models exist for use in determining the toxicity of contaminants. The…”
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Seasonal pattern of anthropogenic salinization in temperate forested headwater streams by Timpano, Anthony J., Zipper, Carl E., Soucek, David J., Schoenholtz, Stephen H.

“…Salinization of freshwaters by human activities is of growing concern globally. Consequences of salt pollution include adverse effects to aquatic biodiversity,…”
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Combined effects of copper, nickel, and zinc on growth of a freshwater mussel (Villosa iris) in an environmentally relevant context by Timpano, Anthony J., Jones, Jess W., Beaty, Braven, Hull, Matthew, Soucek, David J., Zipper, Carl E.

“…•Combined effects of three metals evident in relevant context of elevated major ions.•Mixture inhibited growth more than single-metal exposures of similar…”
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Influence of Test Method Variables on Sensitivity of Neocloeon Triangulifer to a Reference Toxicant in Short‐Term, Effluent Style Evaluations by Soucek, David J., Dickinson, Amy, Norberg‐King, Teresa J.

“…Recent literature has demonstrated the sensitivity of mayflies to environmental contaminants. However, to date, there are no methods approved by the US…”
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Influence of chloride on the chronic toxicity of sodium nitrate to Ceriodaphnia dubia and Hyalella azteca by Soucek, David J., Dickinson, Amy

“…While it has been well established that increasing chloride concentration in water reduces the toxicity of nitrite to freshwater species, little work has been…”
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Trace Elements and Consequent Ecological Risks in Mining‐Influenced Streams of Appalachia by Clark, Elyse V., Soucek, David J., Schoenholtz, Stephen H., Whitmore, Keridwen M., Zipper, Carl E.

“…Abstract Appalachian (eastern USA) coal surface mines fracture geologic materials, causing release of both major ions and trace elements to water via…”
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Acute and Chronic Toxicity of Nickel and Zinc to a Laboratory Cultured Mayfly (Neocloeon triangulifer) in Aqueous but Fed Exposures by Soucek, David J., Dickinson, Amy, Schlekat, Chris, Van Genderen, Eric, Hammer, Edward J.

“…Aquatic insects are poorly represented in water quality criteria, and previous studies have suggested a lack of sensitivity in acute toxicity tests despite…”
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Selection of food combinations to optimize survival, growth, and reproduction of the amphipod Hyalella azteca in static-renewal, water-only laboratory exposures by Soucek, David J., Dickinson, Amy, Major, Kaley M.

“…Although standardized sediment toxicity testing methods have been developed for the amphipod Hyalella azteca, no standardized chronic water‐only toxicity…”
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Multiple stressors influence benthic macroinvertebrate communities in central Appalachian coalfield streams by Drover, Damion R., Schoenholtz, Stephen H., Soucek, David J., Zipper, Carl E.

“…Headwater streams impacted by surface coal mining in the central Appalachian region of the eastern USA have characteristics not shared by reference-quality…”
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Influence of dilution water ionic composition on acute major ion toxicity to the mayfly Neocloeon triangulifer by Soucek, David J., Mount, David R., Dickinson, Amy, Hockett, J. Russell

“…Field and laboratory studies have shown that mayflies (Ephemeroptera) tend to be relatively sensitive to elevated major ion concentrations, but little is known…”
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Impacts to water quality and biota persist in mining-influenced Appalachian streams by Cianciolo, Thomas R., McLaughlin, Daniel L., Zipper, Carl E., Timpano, Anthony J., Soucek, David J., Schoenholtz, Stephen H.

“…Elevated dissolved major ions (salinization) from surface coal mining are a common impact to central Appalachian headwater streams. Salinization is associated…”
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Salinity as a Limiting Factor for Biological Condition in Mining-Influenced Central Appalachian Headwater Streams by Timpano, Anthony J., Schoenholtz, Stephen H., Soucek, David J., Zipper, Carl E.

“…Recent studies have found that Appalachian coal mining causes increased surface water salinity, and that benthic macroinvertebrate communities in salinized…”
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Selenium dynamics in headwater streams of the central Appalachian coalfield by Whitmore, Keridwen M., Schoenholtz, Stephen H., Soucek, David J., Hopkins, William A., Zipper, Carl E.

“…Coal mining can cause selenium (Se) contamination in US Appalachian streams, but linkages between water‐column Se concentrations and Se bioaccumulation within…”
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Acute and Chronic Toxicity of Sodium Nitrate and Sodium Sulfate to Several Freshwater Organisms in Water‐Only Exposures by Wang, Ning, Dorman, Rebecca A., Ivey, Christopher D., Soucek, David J., Dickinson, Amy, Kunz, Bethany K., Steevens, Jeffery A., Hammer, Edward J., Bauer, Candice R.

“…Elevated nitrate (NO3) and sulfate (SO4) in surface water are of global concern, and studies are needed to generate toxicity data to develop environmental…”
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Selenium Bioaccumulation Across Trophic Levels and Along a Longitudinal Gradient in Headwater Streams by Cianciolo, Thomas R., McLaughlin, Daniel L., Zipper, Carl E., Timpano, Anthony J., Soucek, David J., Whitmore, Keridwen M., Schoenholtz, Stephen H.

“…Toxic effects of selenium (Se) contamination in freshwaters have been well documented. However, study of Se contamination has focused on lentic and larger…”
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The common ecotoxicology laboratory strain of Hyalella azteca is genetically distinct from most wild strains sampled in Eastern North America by Major, Kaley, Soucek, David J., Giordano, Rosanna, Wetzel, Mark J., Soto-Adames, Felipe

“…The amphipod Hyalella azteca is commonly used as a model for determining safe concentrations of contaminants in freshwaters. The authors sequenced the…”
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Influence of water hardness and sulfate on the acute toxicity of chloride to sensitive freshwater invertebrates by Soucek, David J., Linton, Tyler K., Tarr, Christopher D., Dickinson, Amy, Wickramanayake, Nilesh, Delos, Charles G., Cruz, Luis A.

“…Total dissolved solids (TDS) represent the sum of all common ions (e.g., Na, K, Ca, Mg, chloride, sulfate, and bicarbonate) in freshwater. Currently, no…”
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Comparison of benthic macroinvertebrate assessment methods along a salinity gradient in headwater streams by Pence, Rachel A., Cianciolo, Thomas R., Drover, Damion R., McLaughlin, Daniel L., Soucek, David J., Timpano, Anthony J., Zipper, Carl E., Schoenholtz, Stephen H.

“…Benthic macroinvertebrate community assessments are used commonly to characterize aquatic systems and increasingly for identifying their impairment caused by…”
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Effects of environmentally relevant mixtures of major ions on a freshwater mussel by Ciparis, Serena, Phipps, Andrew, Soucek, David J., Zipper, Carl E., Jones, Jess W.

“…The Clinch and Powell Rivers (Virginia, USA) support diverse mussel assemblages. Extensive coal mining occurs in both watersheds. In large reaches of both…”
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