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You are browsing all 101 communication products for Chesapeake Bay, Chesapeake Bay

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2008 Chesapeake Bay Summer Review (Report) Permanent Link

Produced by EcoCheck in collaboration with Chesapeake Bay Program's Tidal Monitoring and Analysis Workgroup.

Several large river flow events during winter and spring were forecast to result in worse than average dissolved oxygen and harmful algal bloom conditions this summer. However, observed summer conditions were not as bad as predicted with dissolved oxygen levels being close to the long-term average and Potomac River harmful algal blooms (Microcystis) were relatively small and of shorter duration. These better than predicted levels may in part be attributed to the relatively dry summer. Despite the average mainstem Bay dissolved oxygen levels, harmful algal blooms and fish kills were reported in many of the Bays tributaries. Here we summarize summer conditions and offer some explanations as to why they may have occurred.

Research to improve management of Atlantic menhaden in Chesapeake Bay (Newsletter) Permanent Link

Produced in collaboration with the NOAA Chesapeake Bay Office

From both an economic and ecological standpoint, Atlantic menhaden are one of the most important fish species in Chesapeake Bay. Concerns over localized depletion and a need for improved understanding of the ecological role of menhaden in Chesapeake Bay led the Atlantic States Marine Fisheries Commission to identify research needed to improve menhaden fisheries management. This newsletter provides the status of some of the resulting projects.

Environmental report cards: A tool for better management,  monitoring, and research (Poster) Permanent Link

Environmental report cards are an important tool for integrating assessments of ecosystem health and for communicating scientific understanding to decision makers and the general public. Environmental report cards rely on a suite of environmental indicators (= performance measures, vital signs, reference values) and thresholds (= goals, criteria, standards). The process of combining indicators is an important aspect of ecosystem health assessments and can be accomplished by a variety of mechanisms and influence the results. The specificity of reporting regions can influence the impact of the report cards. Geographically explicit report cards can create a powerful human motivator-peer pressure. Report cards can engender a healthy competition between communities and community leaders to achieve better report card grades. The credibility of the environmental report cards needs to be established by a transparent process in which the data, indices, maps and conceptual foundation are explicit. Report cards can provide timely, synthesized information to a broad audience.

Chesapeake Bay 2007: Land Use and the Chesapeake Bay Report Card (Newsletter) Permanent Link

Produced by EcoCheck and the Integration and Application Network in collaboration with the Chesapeake Bay Program's Monitoring and Analysis Workgroup

The report card aims to inform citizens on the progress Chesapeake Bay is making toward becoming a healthy ecosystem. This year's report card shows that the health of the Bay improved slightly in 2007 when compared to 2006. While the overall health of the Bay and most regions of the Bay improved, the health of some regions of the Bay declined. This newsletter also explores some of the long-term changes in report card scores, making a connection between the scores and influencing factors such as land use and nutrient loads.

Chesapeake Bay Health Report Card: 2007 (Report card) Permanent Link

Prepared by EcoCheck and the Integration and Application Network

This report card provides a transparent, timely, and geographically detailed annual assessment of 2007 Chesapeake Bay habitat health. This is the second 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. Habitat health is defined as progress of the six indicators towards established scientifically derived ecological thresholds or goals. A low score therefore means that the region rarely meets the ecological threshold levels. A high score means that the region often meets the threshold levels. For further details, visit the Report Card website.

A summer of poor water clarity, algal blooms, and fish kills (Newsletter) Permanent Link

Produced by EcoCheck in collaboration with the Chesapeake Bay Program's Monitoring and Analysis Workgroup

This year's drought led to lower than normal nutrient and sediment discharge into the Bay during the summer. With fewer sediments and nutrients entering the Bay, the health of the Bay may have been expected to improve, however, this was not the case for water clarity, harmful algal blooms, and fish kills. While dissolved oxygen in the mainstem was still poor this summer, the volume of oxygen depleted water was relatively small compared to the past 22 years. This newsletter summarizes summer conditions, offers some explanations as to why they may have occurred, and compares observations to the forecast made this past spring.

Incorporating habitat into ecosystem-based fisheries management: Habitat matters! (Newsletter) Permanent Link

Wicks EC, Boicourt K, Longstaff BJ and Townsend H

Habitat consists of the physical, chemical, and biological components that are necessary for the survival and growth of organisms in an ecosystem. In an estuary, habitat provides food and shelter for invertebrates, shellfish, and fish. Habitat is an integral part of an ecosystem, and assessing habitats is important in determining ecosystem health. This newsletter describes the steps in determining optimal habitat conditions, discusses the practical reality of measuring habitats in complex ecosystems, and provides an example of a habitat suitability model. This effort was in collaboration with NOAA's Chesapeake Bay Office.

National Estuarine Eutrophication Assessment: A Decade of Change (Presentation) Permanent Link

Bricker S, Longstaff BJ, Dennison WC, Jones AB, Boicourt K, Wicks EC and Woerner JL

This presentation describes the methods used in the NEEA and focuses on the national results. It also describes the Mid-Atlantic results and International case studies. The presentation was given at the 2007 Estuarine Research Federation conference.

Asian oysters: Science to inform policy decisions (Newsletter) Permanent Link

O'Herron M, King J, Wicks EC, Bushek D and Carnegie R

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. The three newsletters summarize the research topics addressed in the EIS and discuss the current findings on interactions between the Asian oyster and the native oyster and the implications of an introduction on oyster disease. This effort was in collaboration with NOAA's Chesapeake Bay Office.

Defending our National Treasure: A Department of Defense Chesapeake Bay Restoration Partnership 1998-2004 (Book) Permanent Link

Lane H, Woerner JL, Dennison WC, Neill C, Wilson C, Elliott M, Shively M, Graine J and Jeavons R

Defending Our National Treasure: A Department of Defense Chesapeake Bay Restoration Partnership 1998–2004 provides an overview of major issues impacting the Chesapeake Bay, history of the Department of Defense’s involvement in Bay restoration efforts, current Department of Defense Chesapeake Bay restoration initiatives, specific case studies, and viewpoints of various key individuals dedicated to restoration. These topics are presented in a richly illustrated style including maps, photographs, conceptual diagrams, and figures to uniquely communicate information and make it accessible to a broad audience. Each section provides the essence of each topic rather than the complete and comprehensive treatment. For example, there are numerous documents describing Chesapeake Bay and Department of Defense initiatives (www.denix.osd.mil). Defending Our National Treasure provides the context and background for the issues impacting the Chesapeake Bay and describes the restoration activities conducted on the Department of Defense installations within the Bay watershed.

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IAN Press relies extensively on color for photographs, maps, conceptual diagrams, figures and even text and tables to a limited degree. The use of color allows for an increased data density and provides a bigger visual impact considering the amount of the human brain devoted to visual discrimination of colors. Color allows for greater discrimination of visual elements and in data presentation, a closer juxtaposition of different elements and greater comparative utility. The preponderance of color printers and the ability of electronic versions to be displayed in color promote the inexpensive dissemination of full color documents. In order to help color-blind people compensate, an effort is made to provide other visual clues in graphics, such as symbols with different shapes or map delineations with different shading or texture, but some of the visual impact will be compromised.


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