Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Roger B. Yeardley"'
Publikováno v:
Journal of environmental protection
The unique challenges associated with sampling of macroinvertebrates in flashy urban streams create a methods gap. These streams form isolated pools for much of the year, interspersed with spates that scour and deposit excessive amounts of sediment.
Autor:
David P. Krabbenhoft, Ryan F. Lepak, Jacob M. Ogorek, Michael T. Tate, Joel C. Hoffman, Marc A. Mills, Roger B. Yeardley, Sarah E. Janssen, Mark S. Pearson, Anne M. Cotter, Greg S. Peterson, John F. DeWild, Collin A. Eagles-Smith, David M. Walters
Publikováno v:
Sci Total Environ
Industrial chemical contamination within coastal regions of the Great Lakes can pose serious risks to wetland habitat and offshore fisheries, often resulting in fish consumption advisories that directly affect human and wildlife health. Mercury (Hg)
Autor:
Roger B. Yeardley
Publikováno v:
Environmental Monitoring and Assessment. 65:559-585
Selection of fish species for sampling to assess extent and potential effects of fish tissue contaminants is a criticalconsideration in the design of regional probability-designsurveys. The ideal species would be ubiquitous, bioaccumulatetoxic chemic
Publikováno v:
Journal of Freshwater Ecology. 14:301-312
We determined effects of acidification on sediment aerobic heterotrophic exo-amylase and exo-protease producing microbial populations in addition to effects on the total microbial population. Acidification of microcosms to sediment pHs of 6, 5, 4, an
Publikováno v:
Environmental Toxicology and Chemistry. 17:1875-1884
The approach of the Environmental Monitoring and Assessment Program (EMA) to monitoring of fish tissue contaminants is shown to have utility for regional assessment, and for discrimination of regional from local contamination. The survey sampling des
Publikováno v:
Environmental Toxicology and Chemistry. 15:1532-1537
An earthworm avoidance test has potential advantages for use in evaluation of hazardous wastes sites. Because organisms often exhibit behavioral responses at lower levels of stress than those that acute toxicity tests are able to detect, avoidance te
Autor:
Tim C. Keener, Adison Sasivongpakdi, Joo-Youp Lee, Edwin F. Barth, Roger B. Yeardley, Nicole M. Bujalski, Patrick J. Clark, Hari Krishna Bharadwaj
Publikováno v:
Journal of the AirWaste Management Association (1995). 62(11)
The characteristics of petroleum-contaminated sediment (PCS) have been evaluated to assess whether the practice of its beneficial reuse as a sole or supplemental energy source is sustainable relative to other sediment remediation options such as moni
Publikováno v:
Environmental Toxicology and Chemistry. 14:1189-1194
The use of the 14-d earthworm toxicity test to aid in the evaluation of the ecological impact of contaminated soils is becoming increasingly widespread. However, the method is in need of further standardization. As part of this continuing process, th