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You are browsing all 93 communication products for Chesapeake Bay, Chesapeake Bay

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Chesapeake Bay Habitat Health Report Card: 2006 (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 2006 Chesapeake Bay habitat health. A report card will be released each year, in early to mid April, providing an assessment of the previous year’s habitat health. 2006 is the first 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.



Development of an Integrated and Spatially Explicit Index of Chesapeake Bay Health (Bay Habitat Health Index - BHHI) (Report) Permanent Link

Author(s): Williams M, Longstaff BJ, Buchanan C, Llansó R and Bergstrom P

This technical document provides a detailed of the methodology employed in generating the Bay Habitat Health Index used in the Chesapeake Bay Report Card.



Beneficial use of dredged material to restore Chesapeake Bay wetlands (Newsletter) Permanent Link

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. The purpose of this effort is to develop a study plan that will evaluate the key ecological, economic, and engineering issues associated with a large scale marsh restoration project in Dorchester County.



Future directions of fisheries management: An ecosystem-based approach (Newsletter) Permanent Link

Author(s): Boicourt K, Longstaff BJ and Townsend H

This newsletter describes current and future directions of Ecosystem-Based Fisheries Management (EBFM). While the standard approach to fisheries management has been to focus on one species at a time, EBFM characterizes a greater number of ecosystem components, including the physical and chemical properties of systems. The newsletter explores the current and potential applications of the ecosystem-based approach. This newsletter is a collaboration between EcoCheck and NOAA's Chesapeake Bay Office.



Weather extremes lead to typical conditions (Newsletter) Permanent Link

Newsletter prepared by Caroline Wicks and Ben Longstaff on behalf of the Tidal and Monitoring Analysis Workgroup members

This newsletter addresses the extreme weather conditions that the Bay area experienced during the spring and summer of 2006 and how these weather conditions affected the summer ecological forecast that was released in May 2006 and other aspects of Bay health. The forecast focuses on dissolved oxygen in the mainstem, harmful algal blooms in the Potomac River and aquatic grasses in three locations in the Bay. Scientists have been tracking these conditions through the summer to provide an assessment of summer conditions and to evaluate the forecast.



Investigating menhaden recruitment variability: Modeling the relationship between striped bass recovery and menhaden recruitment (Newsletter) Permanent Link

Author(s): Zhang X, Wood RJ, Wicks EC and Longstaff BJ

This newsletter summarizes ongoing development of a model that describes fluctuations in the number of young menhaden within Chesapeake Bay. Using both menhaden spawning stock and striped bass predation potential, the model successfully accounts for most of the variability (~70%) seen in Chesapeake Bay menhaden recruitment. With our ongoing work suggesting that weather patterns can improve the model, this approach appears to have the potential to support ecosystem based management for the Bay's menhaden and striped bass fisheries.



Modeling Atlantic menhaden recruitment in Chesapeake Bay: Is the striped bass recovery a problem? (Presentation) Permanent Link

Author(s): Zhang X, Wood RJ, Houde ED, Townsend, H and Wicks EC

This presentation discusses a modeling approach to formally test the often-referenced role of striped bass predation on Atlantic menhaden recruitment in Chesapeake Bay. In addition, this presentation also briefly discusses some preliminary results from on-going research on the menhaden stock recruitment issue.



Early summer rain event (Newsletter) Permanent Link

Newsletter prepared by Caroline Wicks and Ben Longstaff on behalf of Tidal Monitoring and Analysis Workgroup members

This newsletter describes some of the monitoring data and the response from the Chesapeake Bay community to the high rainfall event that moved through the Bay watershed from June 24 to June 28, 2006. In some areas of the watershed, up to 15 inches of rain fell and much of the area received 5 inches or more. The Chesapeake Bay Program quickly organized an effort to monitor and analyze dissolved oxygen, turbidity, chlorophyll a and aquatic grass in the Bay.



Indicator and communication redesign effort: Progress and development of a spatial health index (Presentation) Permanent Link

Author(s): Longstaff BJ, Dennison WC, Batiuk R, Sylvester N, Haywood C, Conner C and Williams M

This presentation summarizes the progress made towards redesigning the Chesapeake Bay Program’s indicator framework and communication strategy. The presentation provides an overview of a draft ecosystem health report card developed for Chesapeake Bay. The presentation was given at the Scientific and Technical Advisory Committee meeting in June 2006.



MASC Newsletter 5 - Ecological Forecast, Summer 2006 (Newsletter) Permanent Link

Newsletter prepared by Ben Longstaff and Caroline Wicks on behalf of Tidal monitoring and analysis workgroup members

This newsletter describes the methods used and the predictions for the 2006 summer ecological conditions in Chesapeake Bay. The forecast focuses on three important elements of the Bay's health-dissolved oxygen (DO), harmful algal blooms (HABs) and changes in bay grass distribution. This summer it is predicted that the amount of mainstem anoxia (low dissolved oxygen) will be moderate compared to previous years, that there is a moderate to high likelihood of harmful algal blooms in the Potomac River and that a small expansion in aquatic grasses is expected in the northern Bay and lower Potomac River.



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"Writing crystallizes thought and thought produces action." Paul J. Meyer

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