David F. Ludwig
Arcadis NV
17 Papers
90 Citations
David F. Ludwig is an academic researcher from Arcadis NV. The author has contributed to research in topics: Estuary & Restoration ecology. The author has an hindex of 9, co-authored 17 publications.
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Papers
Characterization of Chemical Contamination in Shallow-Water Estuarine Habitats of an Industrialized River. Part 1: Organic Compounds
Timothy J. Iannuzzi,Tina N. Armstrong,John B. Thelen,David F. Ludwig,Clifford E. Firstenberg +4 more
TL;DR: The lower six miles of the tidal portion of the Passaic River (Study Area) has been heavily industrialized since the mid-1800s as discussed by the authors, and the objectives of this study were to quantify the present extent and...
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Characterization of Chemical Contamination in Shallow-Water Estuarine Habitats of an Industrialized River. Part II. Metals
Tina N. Armstrong,Timothy J. Iannuzzi,John B. Thelen,David F. Ludwig,Clifford E. Firstenberg +4 more
TL;DR: In this paper, the authors quantify the present extent and magnitude of metals contamination in surface sediments in the Passaic River (Study Area), evaluate the contamination in the Study Area relative to a reference area and surrounding regional waterways, assess the potential for adverse effects to aquatic organisms, and identify spatial gradients in concentrations that may indicate potential point-sources of metals.
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Phragmites and environmental management: A question of values
TL;DR: In this article, a review of the literature leads to conclude that Phragmites is simply a biological entity and is not inherently good or bad, since its evolution, biology, and ecology do not give it a value.
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Sediment quality triad assessment of an industrialized estuary of the northeastern USA.
TL;DR: The weight-of-evidence of this sediment quality triad (SQT) assessment indicates that impacts from multiple contaminants are occurring throughout the lower Passaic River and that these impacts must be evaluated further and addressed as part of ongoing restoration initiatives for the river.
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Habitat equivalency in urban estuaries: An analytical hierarchy process for planning ecological restoration
TL;DR: This study develops and applies Analytical Hierarchy Process (AHP) in the context of a specimen HEA for US Mid-Atlantic coast estuaries, andRank various habitat types as potential restoration targets based on their value for a suite of key natural resources are produced.
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