Nile Kemble (Former Employee)
Science and Products
Filter Total Items: 40
Assessing sediments from Upper Mississippi River navigational pools using a benthic invertebrate community evaluation and the sediment quality triad approach Assessing sediments from Upper Mississippi River navigational pools using a benthic invertebrate community evaluation and the sediment quality triad approach
Benthic invertebrate samples were collected from 23 pools in the Upper Mississippi River (UMR) and from one station in the Saint Croix River (SCR) as part of a study to assess the effects of the extensive flooding of 1993 on sediment contamination in the UMR system. Sediment contaminants of concern included both organic and inorganic compounds. Oligochaetes and chironomids constituted...
Authors
T.J. Canfield, E.L. Brunson, F.J. Dwyer, C.G. Ingersoll, N.E. Kemble
Use of sublethal endpoints in sediment toxicity tests with the amphipod Hyalella azteca Use of sublethal endpoints in sediment toxicity tests with the amphipod Hyalella azteca
Short-term sediment toxicity tests that only measure effects on survival can be used to identify high levels of contamination but may not be able to identify marginally contaminated sediments. The objective of the present study was to develop a method for determining the potential sublethal effects of contaminants associated with sediment on the amphipod Hyalella azteca (e.g...
Authors
Chris G. Ingersoll, Eric L. Brunson, F. James Dwyer, Douglas K. Hardesty, Nile E. Kemble
Assessing sediment toxicity from navigational pools of the Upper Mississippi River using a 28-day Hyalella azteca test Assessing sediment toxicity from navigational pools of the Upper Mississippi River using a 28-day Hyalella azteca test
To assess the extent of sediment contamination in the Upper Mississippi River (UMR) system after the flood of 1993, sediment samples were collected from 24 of the 26 navigational pools in the river and from one site in the Saint Croix River in the summer of 1994. Whole-sediment tests were conducted with the amphipod Hyalella azteca for 28 days measuring the effects on survival, growth...
Authors
N.E. Kemble, E.L. Brunson, T.J. Canfield, F.J. Dwyer, C.G. Ingersoll
Assessing contamination in Great Lakes sediments using benthic invertebrate communities and the sediment quality triad approach Assessing contamination in Great Lakes sediments using benthic invertebrate communities and the sediment quality triad approach
Sediments in many Great Lakes harbors and tributary rivers are contaminated. As part of the USEPA's Assessment and Remediation of Contaminated Sediment (ARCS) program, a number of studies were conducted to determine the nature and extent of sediment contamination in Great Lakes Areas of Concern (AOC). This paper describes the composition of benthic invertebrate communities in...
Authors
Timothy J. Canfield, F. James Dwyer, James F. Fairchild, Pamela S. Haverland, Christopher G. Ingersoll, Nile E. Kemble, David R. Mount, Thomas W. La Point, G. Allen Burton, M. C. Swift
Calculation and evaluation of sediment effect concentrations for the amphipod Hyalella azteca and the midge Chironomus riparius Calculation and evaluation of sediment effect concentrations for the amphipod Hyalella azteca and the midge Chironomus riparius
Procedures are described for calculating and evaluating sediment effect concentrations (SECs) using laboratory data on the toxicity of contaminants associated with field-collected sediment to the amphipod Hyalella azteca and the midge Chironomus riparius. SECs are defined as the concentrations of individual contaminants in sediment below which toxicity is rarely observed and above which...
Authors
Christopher G. Ingersoll, Pamela S. Haverland, Eric L. Brunson, Timothy J. Canfield, F. James Dwyer, Chris Henke, Nile E. Kemble, David R. Mount, Richard G. Fox
Chemical characterization of sediments and pore water from the upper Clark Fork River and Milltown Reservoir, Montana Chemical characterization of sediments and pore water from the upper Clark Fork River and Milltown Reservoir, Montana
The upper Clark Fork River basin in western Montana is widely contaminated by metals from past mining, milling, and smelting activities As part of a comprehensive ecological risk assessment for the upper Clark Fork River, we measured physical and chemical characteristics of surficial sediment samples that were collected from depositional zones for subsequent toxicity evaluations Sampling...
Authors
W. G. Brumbaugh, C.G. Ingersoll, N.E. Kemble, T.W. May, J.L. Zajicek
Science and Products
Filter Total Items: 40
Assessing sediments from Upper Mississippi River navigational pools using a benthic invertebrate community evaluation and the sediment quality triad approach Assessing sediments from Upper Mississippi River navigational pools using a benthic invertebrate community evaluation and the sediment quality triad approach
Benthic invertebrate samples were collected from 23 pools in the Upper Mississippi River (UMR) and from one station in the Saint Croix River (SCR) as part of a study to assess the effects of the extensive flooding of 1993 on sediment contamination in the UMR system. Sediment contaminants of concern included both organic and inorganic compounds. Oligochaetes and chironomids constituted...
Authors
T.J. Canfield, E.L. Brunson, F.J. Dwyer, C.G. Ingersoll, N.E. Kemble
Use of sublethal endpoints in sediment toxicity tests with the amphipod Hyalella azteca Use of sublethal endpoints in sediment toxicity tests with the amphipod Hyalella azteca
Short-term sediment toxicity tests that only measure effects on survival can be used to identify high levels of contamination but may not be able to identify marginally contaminated sediments. The objective of the present study was to develop a method for determining the potential sublethal effects of contaminants associated with sediment on the amphipod Hyalella azteca (e.g...
Authors
Chris G. Ingersoll, Eric L. Brunson, F. James Dwyer, Douglas K. Hardesty, Nile E. Kemble
Assessing sediment toxicity from navigational pools of the Upper Mississippi River using a 28-day Hyalella azteca test Assessing sediment toxicity from navigational pools of the Upper Mississippi River using a 28-day Hyalella azteca test
To assess the extent of sediment contamination in the Upper Mississippi River (UMR) system after the flood of 1993, sediment samples were collected from 24 of the 26 navigational pools in the river and from one site in the Saint Croix River in the summer of 1994. Whole-sediment tests were conducted with the amphipod Hyalella azteca for 28 days measuring the effects on survival, growth...
Authors
N.E. Kemble, E.L. Brunson, T.J. Canfield, F.J. Dwyer, C.G. Ingersoll
Assessing contamination in Great Lakes sediments using benthic invertebrate communities and the sediment quality triad approach Assessing contamination in Great Lakes sediments using benthic invertebrate communities and the sediment quality triad approach
Sediments in many Great Lakes harbors and tributary rivers are contaminated. As part of the USEPA's Assessment and Remediation of Contaminated Sediment (ARCS) program, a number of studies were conducted to determine the nature and extent of sediment contamination in Great Lakes Areas of Concern (AOC). This paper describes the composition of benthic invertebrate communities in...
Authors
Timothy J. Canfield, F. James Dwyer, James F. Fairchild, Pamela S. Haverland, Christopher G. Ingersoll, Nile E. Kemble, David R. Mount, Thomas W. La Point, G. Allen Burton, M. C. Swift
Calculation and evaluation of sediment effect concentrations for the amphipod Hyalella azteca and the midge Chironomus riparius Calculation and evaluation of sediment effect concentrations for the amphipod Hyalella azteca and the midge Chironomus riparius
Procedures are described for calculating and evaluating sediment effect concentrations (SECs) using laboratory data on the toxicity of contaminants associated with field-collected sediment to the amphipod Hyalella azteca and the midge Chironomus riparius. SECs are defined as the concentrations of individual contaminants in sediment below which toxicity is rarely observed and above which...
Authors
Christopher G. Ingersoll, Pamela S. Haverland, Eric L. Brunson, Timothy J. Canfield, F. James Dwyer, Chris Henke, Nile E. Kemble, David R. Mount, Richard G. Fox
Chemical characterization of sediments and pore water from the upper Clark Fork River and Milltown Reservoir, Montana Chemical characterization of sediments and pore water from the upper Clark Fork River and Milltown Reservoir, Montana
The upper Clark Fork River basin in western Montana is widely contaminated by metals from past mining, milling, and smelting activities As part of a comprehensive ecological risk assessment for the upper Clark Fork River, we measured physical and chemical characteristics of surficial sediment samples that were collected from depositional zones for subsequent toxicity evaluations Sampling...
Authors
W. G. Brumbaugh, C.G. Ingersoll, N.E. Kemble, T.W. May, J.L. Zajicek