Publications by Bill Dennison

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.

More habitat means more fish (Page 1)

More habitat means more fish

Jane Thomas, Heath Kelsey, Bill Dennison ·
6 May 2013

Restoring and expanding coastal and estuarine habitat leads to increases in fish populations, which have a positive impact on the communities and the industries that depend on thriving and sustainable fisheries. This report makes a powerful case that investing in our nation’s coastlines and estuaries leads to healthy habitat and strong fisheries, which has a positive impact on the businesses and industries, both recreational and commercial, that need healthy fisheries to survive and thrive.

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Red Tides of the West Florida Shelf: Science and Management (Page 1)

Red Tides of the West Florida Shelf: Science and Management

Garrett M, Heil C and O'Neil JM ·
4 February 2013

Native to the Gulf of Mexico, Karenia brevis is a toxic dinoflagellate that blooms almost annually off the west coast of Florida. K. brevis blooms are not a new phenomenon on the west Florida shelf, and ships' logs suggest bloom-related events (fish kills) dating back to the 1500s. Coastal regions of Florida have experienced some of the most rapid population growth and development in the United States.

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Red Tides on the West Florida Shelf (Page 1)

Red Tides on the West Florida Shelf

Garrett M, Heil C and O'Neil JM ·
4 February 2013

Native to the Gulf of Mexico, Karenia brevis is a toxic dinoflagellate that blooms almost annually off the west coast of Florida. K. brevis blooms are not a new phenomenon on the west Florida shelf, and ships' logs suggest bloom-related events (fish kills) dating back to the 1500s. Coastal regions of Florida have experienced some of the most rapid population growth and development in the United States.

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Elucidating terrestrial nutrient sources to a coastal lagoon, Chincoteague Bay, Maryland, USA (Page 1)

Elucidating terrestrial nutrient sources to a coastal lagoon, Chincoteague Bay, Maryland, USA

Fertig BM, O’Neil JM, Beckert KA, Cain CJ, Needham DM, Carruthers TJB, and Dennison WC ·
2013

Long-term non-linear ecosystem-scale changes in water quality and biotic communities in coastal lagoons have been associated with intensification of anthropogenic pressures. In light of incipient changes in Johnson Bay (an embayment of Chincoteague Bay, Maryland-Virginia, USA), examination of nitrogen sources was conducted through synoptic water quality monitoring, stable nitrogen isotope signatures (deltaN-15) of in situ bioindicators, and denitrification estimates.

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Improving management of a mid-Atlantic coastal barrier island through assessment of habitat condition (Page 1)

Improving management of a mid-Atlantic coastal barrier island through assessment of habitat condition

Carruthers TJB, Beckert K, Schupp CA, Saxby TA, Kumer JP, Thomas JE, Sturgis B, Dennison WC, Williams M, Fisher T, and Zimmerman CS ·
2013

To achieve desired environmental outcomes, environmental condition and trends need to be rigorously measured and communicated to resource managers, scientists, and a broader general audience. However, there is often a disconnect between responsive ecosystem monitoring and decision making for strategic long-term management. This project demonstrates how historical monitoring data can be synthesized and used for future planning and decision making, thereby closing the management feedback cycle.

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Oyster deltaN-15 as a Bioindicator of Potential Wastewater and Poultry Farming Impacts and Degraded Water Quality in a Subestuary of Chesapeake Bay (Page 1)

Oyster deltaN-15 as a Bioindicator of Potential Wastewater and Poultry Farming Impacts and Degraded Water Quality in a Subestuary of Chesapeake Bay

Fertig BM, Carruthers TJB, and Dennison WC ·
2013

Anthropogenic nitrogen contributes to water quality degradation, but it is difficult to distinguish sources once they are mixed in coastal ecosystems. Natural abundances of stable nitrogen isotopes (deltaN-15) were measured in oyster (Crassostrea virginica) tissues (muscle, gills, and mantle) during summer 2006 to summer 2008 to identify nitrogen sources in Monie Bay (a subestuary of Chesapeake Bay) receiving freshwater inputs from three tributary creeks. The creeks (estimated flushing times:

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Popular Education for Water Sustainability: Three Lessons from Reflective Practice (Page 1)

Popular Education for Water Sustainability: Three Lessons from Reflective Practice

Oliver P, Dennison WC ·
2013

Between them, the authors of this paper have over sixty years experience in water education working in primary and secondary schools, universities, field study centres, professional development programs; and with community, industry, and government groups, focusing on coastal zones and catchments. Over the last three years, they have undertaken a systematic process of personal and dialogic reflection and deliberation on this experience, particularly in the area of popular education.

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Studying Nature In Situ: Immersive Education for Better Integrated Water Management (Page 1)

Studying Nature In Situ: Immersive Education for Better Integrated Water Management

Dennison WC, Oliver P ·
2013

The term immersive education is currently used in two educational areas – language education, which involves students being totally immersed in a language and its culture; and virtual education, where teachers use computers and simulation games to immerse learners in a virtual, computer-generated environment that mimics a real-world environment and allows learners to interact with it.

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2011 Maryland Coastal Bays report card (Page 1)

2011 Maryland Coastal Bays report card

Jane Thomas, Bill Dennison, Adrian Jones ·
19 November 2012

The aim of this report card is to provide a transparent, timely, and geographically detailed assessment of 2011 Coastal Bays health. Coastal Bays health is defined as the progress of four water quality indicators (total nitrogen, total phoshorus, Chlorophyll a, dissolved oxygen) and two biotic indicators (seagrass, hard clams) toward scientifically derived ecological thresholds or goals.

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