Publications by Michael Williams

IAN is committed to producing practical, user-centered communications that foster a better understanding of science and enable readers to pursue new opportunities in research, education, and environmental problem-solving. Our publications synthesize scientific findings using effective science communication techniques.

Stormwater Management (Page 1)

Stormwater Management

Jane Hawkey, Simon Costanzo, Michael Williams ·
5 August 2013

The Chesapeake and Atlantic Coastal Bays Trust Fund newsletter describes the factors that affect the water quantity and water quality of stormwater. It features one Best Management Practice, a Regenerative Stormwater Conveyance System, and provides the monitoring results from that case study in Anne Arundel County, Maryland.

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Assateague Island National Seashore Natural Resource Condition Assessment (Page 1)

Assateague Island National Seashore Natural Resource Condition Assessment

Carruthers TJB, Beckert KA, Dennison WC, Thomas JE, Saxby TA, Williams MR, Fisher T, Kumer J, Schupp C, Sturgis B, and Zimmerman C ·
17 June 2011

Assateague Island National Seashore with lands and waters in Maryland and Virginia receives some two million visitors per year. After determining key habitats on Assateague Island, potential indicators were identified and data sourced. Attainment of reference condition was assessed for each metric and summarized by habitat and ultimately for the whole park. Based on these key findings, management recommendations were developed.

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Chapter 6: Ecological report cards: integrating indicators into report cards

Williams MR, Longstaff BJ, Wicks EC, Carruthers TJB, and Florkowski LN ·
2010

This chapter continues the discussion of ecological indicators but with the specific application of producing ecological report cards. It explains the reasons for producing report cards, the steps to produce indicators based on ecological thresholds, and the process of combining indicators into overarching indices. Ecological report cards, like the indicators that they are based on, are one of the most important products for directing data collection and analysis.

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Long-Term Trends in Submersed Aquatic Vegetation (SAV) in Chesapeake Bay, USA, Related to Water Quality (Page 1)

Long-Term Trends in Submersed Aquatic Vegetation (SAV) in Chesapeake Bay, USA, Related to Water Quality

Orth RJ, Williams MR, Marion SR, Wilcox DJ, Carruthers TJB, Moore KA, Kemp WM, Dennison WC, Rybicki N, Bergstrom P, and Batiuk RA ·
2010

Chesapeake Bay supports a diverse assemblage of marine and freshwater species of submersed aquatic vegetation (SAV) whose broad distributions are generally constrained by salinity. An annual aerial SAV monitoring program and a bi-monthly to monthly water quality monitoring program have been conducted throughout Chesapeake Bay since 1984. We performed an analysis of SAV abundance and up to 22 environmental variables potentially influencing SAV growth and abundance (1984-2006).

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Long-Term Trends of Water Quality and Biotic Metrics in Chesapeake Bay: 1986 to 2008 (Page 1)

Long-Term Trends of Water Quality and Biotic Metrics in Chesapeake Bay: 1986 to 2008

Williams MR, Filoso S, Longstaff BJ, and Dennison WC ·
2010

We analyzed trends in a 23-year period of water quality and biotic data for Chesapeake Bay. Indicators were used to detect trends of improving and worsening environmental health in 15 regions and 70 segments of the bay and to assess the estuarine ecosystem's responses to reduced nutrient loading from point (i.e., sewage treatment facilities) and nonpoint (e.g., agricultural and urban land use) sources.

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2008 Chesapeake Bay Report Card (Page 1)

2008 Chesapeake Bay Report Card

Ben Longstaff, Michael Williams, Caroline Donovan, Emily Nauman, Heath Kelsey ·
2 April 2009

This report card provides a transparent, timely, and geographically detailed annual assessment of 2008 Chesapeake Bay habitat health. This is the third year that the report card has been released. This report card rates 15 reporting regions of the Bay using six indicators that are combined into a single overarching index of habitat health. The overall health of Chesapeake Bay was poor in 2008, obtaining a grade of C-.

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2008 Chester River report card (Page 1)

2008 Chester River report card

Ben Longstaff, Emily Nauman, Caroline Donovan, Michael Williams, Katie Foreman, Bill Dennison ·
26 March 2009

This newsletter describes the second annual Chester River report card. The Chester River Estuary received an overall grade of D and the Chester River creeks received an overall grade of C+. In addition to the grades, the newsletter includes information on increased monitoring, provides a comparison of a healthy and unhealthy Chester River, and suggests actions that citizens can take to improve the health of the Chester River.

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