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.

Asian oysters: Science to inform policy decisions (Page 1)

Asian oysters: Science to inform policy decisions

O'Herron M, King J, Wicks EC, Bushek D and Carnegie R ·
2 November 2007

This is a three part series on the Asian oyster Environmental Impact Statement. It has been proposed to introduce the Asian oyster (Crassostrea ariakensis) into Chesapeake Bay as one potential solution to the loss of the historic oyster fishery, and the ecological functions that oysters perform for Chesapeake Bay.

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Protecting Palau's natural heritage

Bill Dennison, Ben Longstaff, Jane Thomas ·
6 August 2007

The Republic of Palau, an island nation in the tropical western Pacific Ocean, harbors diverse mangrove, seagrass, and coral communities. Palau is at a crossroads due to improved access to, and development of, its largest island, Babeldaob. This is leading to increased sediment runoff, particularly in the Ngerikiil River/Airai Bay watershed, the most developed region of Babeldaob Island.

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Breath of Life: Dissolved oxygen in Chesapeake Bay (Page 1)

Breath of Life: Dissolved oxygen in Chesapeake Bay

Wicks EC, Jasinski DA and Longstaff BJ ·
29 May 2007

This newsletter describes why dissolved oxygen is an important indicator of ecosystem health. It focuses on dissolved oxygen in Chesapeake Bay and its tributaries and describes the factors that affect dissolved oxygen. Additionally, the management decisions and actions that are being taken to reduce the amount of low dissolved oxygen in the Bay are described.

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Morro Bay: working together for a healthy ecosystem (Page 1)

Morro Bay: working together for a healthy ecosystem

Bill Dennison, Jane Hawkey ·
21 May 2007

Morro Bay, on the central California coast, was the site of a workshop to develop a conceptual framework for an ecosystem-based management initiative. IAN staff worked with Morro Bay scientists, resource managers, and stakeholders to develop conceptual diagrams for Morro Bay, offshore Estero Bay and the Morro Bay watershed. These diagrams examined key features, threats, and management objectives of the Morro Bay ecosystem.

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Measuring the Health of our National Parks: Rock Creek Park (Page 1)

Measuring the Health of our National Parks: Rock Creek Park

Lisa Florkowski, Tim Carruthers, Bill Dennison ·
1 May 2007

The Inventory and Monitoring (I&M) Program has subdivided the 270 National Park units with significant natural resources into 32 Networks. All of the parks within a Network share similar natural resource challenges. The purpose of these Networks is to conduct long-term resource monitoring. The National Capital Region Netwok (NCRN) consists of 11 parks within Maryland, Virginia, West Virginia, and the District of Columbia.

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Calculating the 2006 Chesapeake Bay report card scores (Page 1)

Calculating the 2006 Chesapeake Bay report card scores

Caroline Donovan, Ben Longstaff, Bill Dennison ·
18 April 2007

Ecosystem health report cards are an effective means of tracking and reporting the health of a waterway at both local and regional scales. A report card is being developed within the Chesapeake Bay science and management community in order to provide a transparent, timely, and geographically detailed annual assessment of Chesapeake Bay habitat health. This newsletter summarizes the methods and data used to calculate the report card scores for 2006.

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Biological indicators enhance water quality monitoring in Maryland's Coastal Bays

Ben Fertig, Tim Carruthers, Bill Dennison ·
2 March 2007

Nutrient point sources such as wastewater treatment plants and non-point sources including agricultural runoff degrade the water quality of Maryland's Coastal Bays through excessive nutrient loading. Identifying specific sources is difficult due to their variety and mixture. Biological indicators can identify nitrogen sources, integrate nitrogen from these sources over time, and detect biologically important nutrients.

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Beneficial use of dredged material to restore Chesapeake Bay wetlands (Page 1)

Beneficial use of dredged material to restore Chesapeake Bay wetlands

Emily Benson, Heather Lane, Jane Thomas ·
23 February 2007

A Mid-Chesapeake Bay Marshlands Restoration project is being developed by the Integration and Application Network, the US Army Corps of Engineers, Maryland Port Administration, US Fish & Wildlife Service, and Maryland Department of Natural Resources. This newsletter discusses the ecological, economic, and engineering issues associated with using dredged material to restore the eroding marshes of the mid-Chesapeake Bay.

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Restore vs. Retreat: Securing ecosystem services provided by coastal Louisiana (Page 1)

Restore vs. Retreat: Securing ecosystem services provided by coastal Louisiana

5 February 2007

This newsletter is based on the findings of the Conceptual Ecological Model Focus Group—March 2006 and considers restoration options in the context of the valuable national ecosystem services supplied from Coastal Louisiana. Ecosystem goods & services provided to Louisiana & the nation by coastal landscapes include wildlife & fisheries habitat, support for petrochemical production,improved water quality & flood protection, ecotourism & aesthetic appeal.

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