Shimon C. Anisfeld

Learn More
[1] Wetlands represent the largest component of the terrestrial biological carbon pool and thus play an important role in global carbon cycles. Most global carbon budgets, however, have focused on dry land ecosystems that extend over large areas and have not accounted for the many small, scattered carbon-storing ecosystems such as tidal saline wetlands. We(More)
We present an expanded training set of salt-marsh foraminifera for reconstructing Holocene relative sea-level change from 12 sites in New Jersey that represent varied physiographic environments. Seven groups of foraminifera are recognized, including four highor transitional-marsh assemblages and a low-salinity assemblage. A weighted-averaging transfer(More)
We used the dual isotope approach to identify sources of nitrate (NO3-) to two mixed land-use watersheds draining to Long Island Sound. In contrastto previous work, we found that sewage effluent NO3- was not consistently enriched in 15N. However, these effluents followed a characteristic denitrification line in delta15N-delta18O space, which could be used(More)
Relative sea-level changes during the last w2500 years in New Jersey, USA were reconstructed to test if late Holocene sea level was stable or included persistent and distinctive phases of variability. Foraminifera and bulk-sediment d13C values were combined to reconstruct paleomarsh elevation with decimeter precision from sequences of salt-marsh sediment at(More)
Accurately evaluating whether a water body is meeting water quality criteria for indicator bacteria requires an understanding of the spatial and temporal variability in concentrations of these indicators. We have collected data on concentrations of Escherichia coli at 12 sites within the upper Hoosic River Basin, spanning a range of land uses and levels of(More)
a Department of Earth and Ocean Sciences, Tufts University, Medford, MA 02155, USA b Department of Geography and Geology, University of North Carolina Wilmington, Wilmington, NC 28403, USA c Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA d British Geological Survey, Center for Environmental(More)
Hydraulic fracturing of shale for gas production in Pennsylvania generates large quantities of wastewater, the composition of which has been inadequately characterized. We compiled a unique data set from state-required wastewater generator reports filed in 2009-2011. The resulting data set, comprising 160 samples of flowback, produced water, and drilling(More)
Upslope migration of a Long Island Sound tidal marsh as a function of upland land use. Shimon C. Anisfeld, Katharine Cooper, Andrew C. Kemp,Yale University,Tufts University. To thrive in a time of rapid sea-level rise, marshes will need to migrate upslope into adjacent uplands. Yet little is known about the mechanics of migration,(More)
To thrive in a time of rapid sea-level rise, tidal marshes will need to migrate upslope into adjacent uplands. Yet little is known about the mechanics of this process, especially in urbanized estuaries, where the adjacent upland is likely to be a mowed lawn rather than a wooded natural area. We studied marsh migration in a Long Island Sound salt marsh using(More)
  • 1