Search Results - "NEBEKER, A. V"

Comparative effects of ammonium and nitrate compounds on Pacific treefrog and african clawed frog embryos by SCHUYTEMA, G. S, NEBEKER, A. V

“…The effects of ammonium nitrate, ammonium chloride, ammonium sulfate, and sodium nitrate on survival and growth of Pacific treefrog (Pseudacris regilla) and…”
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Chronic effects of the herbicide diuron on freshwater cladocerans, amphipods, midges, minnows, worms, and snails by NEBEKER, A. V, SCHUYTEMA, G. S

“…The chronic effects of the herbicide diuron on survival and reproduction of Daphnia pulex, and survival and growth of the amphipod Hyalella azteca, the midge…”
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Effects of ammonium nitrate, sodium nitrate, and urea on red-legged frogs, pacific treefrogs, and African clawed frogs by SCHUYTEMA, G. S, NEBEKER, A. V

“…The Pacific treefrog, Pseudacris regilla (Baird and Girard), is the most common frog in the Pacific Northwest and is found in shallow wetland areas which are…”
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Comparative toxicity of diuron on survival and growth of Pacific treefrog, bullfrog, red-legged frog, and African clawed frog embryos and tadpoles by Schuytema, G.S, Nebeker, A.V

“…The effects of the herbicide diuron on survival and growth of Pacific treefrog (Pseudacris regilla), bullfrog (Rana catesbeiana), red-legged frog (Rana…”
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Salinity tolerance of Daphnia magna and potential use for estuarine sediment toxicity tests by SCHUYTEMA, G. S, NEBEKER, A. V, STUTZMAN, T. W

“…Daphnia magna Straus, a common organism used for freshwater sediment toxicity tests, was evaluated to determine its tolerance to salinity and suitability for…”
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Comparative toxicity of ammonium and nitrate compounds to Pacific treefrog and African clawed frog tadpoles by Schuytema, G.S, Nebeker, A.V

“…The effects of ammonium nitrate, ammonium chloride, ammonium sulfate, and sodium nitrate on survival and growth of Pacific treefrog (Pseudacris regilla [Baird…”
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Effects of ammonium sulfate on growth of larval Northwestern salamanders, red-legged and Pacific treefrog tadpoles, and juvenile fathead minnows by Nebeker, A.V, Schuytema, G.S

“…Flow-through tests were conducted to determine the effects of ammonium sulfate on the growth of three native amphibian species and one introduced fish species…”
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Impact of Guthion on survival and growth of the frog Pseudacris regilla and the salamanders Ambystoma gracile and Ambystoma maculatum by NEBEKER, A. V, SCHUYTEMA, G. S, GRIFFIS, W. L, CATALDO, A

“…The effects of the insecticides Guthion (technical grade) and Guthion 2S (commercial formulation) on survival and growth of tadpoles of the Pacific treefrog…”
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Effects of cadmium on growth and bioaccumulation in the Northwestern Salamander Ambystoma gracile by NEBEKER, A. V, SCHUYTEMA, G. S, OTT, S. L

“…The effect of cadmium in water on the survival, bioaccumulation and growth of larvae and juveniles of the Northwestern salamander (Ambystoma gracile) were…”
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Effect of low dissolved oxygen on aquatic life stages of the caddisfly Clistoronia magnifica (Limnephilidae) by NEBEKER, A. V, ONJUKKA, S. T, STEVENS, D. G, CHAPMAN, G. A

“…Embryos, larval stages (instars I-V), pupal stages, and pharate adults of the caddisfly Clistoronia magnifica (Limnephilidae) were exposed to a range of…”
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Temperature Selection by Hatchling and Yearling Florida Red-Bellied Turtles (Pseudemys nelsoni) in Thermal Gradients by Nebeker, Alan V., Bury, R. Bruce

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Effects of dietary exposure to forest pesticides on the brown garden snail Helix aspersa Muller by Schuytema, G.S, Nebeker, A.V, Griffis, W.L

“…Brown golden snails, Helix aspersa, were fed diets contaminated with 5000 mg/kg of acephate, atrazine, glyphosate, hexazinone, picloram, carbaryl,…”
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Toxicity of Guthion and Guthion 2S to Xenopus laevis embryos by Schuytema, G.S, Nebeker, A.V, Griffis, W.L

“…The development of Xenopus laevis (African clawed frog) embryos exposed to the pesticide Guthion (technical grade) and Guthion 2S (commercial formulation) was…”
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Comparison of recirculating, static, and elutriate aquatic sediment bioassay procedures by SCHUYTEMA, G. S, NEBEKER, A. V, CAIRNS, M. A

“…Acute sediment toxicity tests are commonly used to measure potential harm to biological communities. Results are presented from a study that compared the data…”
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Effects of cadmium on limb regeneration in the Northwestern salamander Ambystoma gracile by NEBEKER, A. V, SCHUYTEMA, G. S, OTT, S. L

“…Cadmium significantly affected limb regrowth in Ambystoma gracile larvae, the lowest observed adverse effect level being 193.1 ug per litre in a 24-d test and…”
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Comparative toxicity of guthion and guthion 2S to Xenopus laevis and Pseudacris regilla tadpoles by SCHUYTEMA, G. S, NEBEKER, A. V, GRIFFIS, W. L

“…Tadpoles (Xenopus laevis and Pseudacris regilla) were exposed to Gutha and Guthian 2S, at concentrations ranging form 0.01-11.40 mg per litre in 4 and 8-d…”
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Estimation of waterborne selenium concentrations that are toxicity thresholds for wildlife by PETERSON, J. A, NEBEKER, A. V

“…Contamination of freshwater systems can lead to mortality and impaired reproduction in wildlife. There is a growing need for methods to estimate waterborne…”
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Effects of dieldrin in food on growth and bioaccumulation in mallard ducklings by Nebekar, A.V, Dunn, K.D, Griffis, W.L, Schuytema, G.S

“…The effects of dieldrin in food organisms and commercial feed on the growth, and bioaccumulation in newly-hatched mallard ducks (Anas platyrhynchos) fed with…”
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Toxicity and estimated water quality criteria values in mallard ducklings exposed to pentachlorophenol by Nebeker, A.V, Griffis, W.L, Schuytema, G.S

“…Tests were conducted to determine the effects of pentachlorophenol (PCP) in feed on growth and bioaccumulation in mallard ducklings (Anas platyrhynchos)…”
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Teratogenesis, toxicity, and bioconcentration in frogs exposed to dieldrin by Schuytema, G.S. (U.S. Environmental Protection Agency, Corvallis, OR), Nebeker, A.V, Griffis, W.L, Wilson, K.N

“…Teratogenesis, acute and chronic toxicity, growth and bioconcentration were investigated in various life stages (embryos, tadpoles, juveniles, adults) of the…”
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