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Bay Barometer: Health and Restoration in the Chesapeake Bay Watershed (2015-2016)

The data in Bay Barometer reflect the Chesapeake Bay’s health over the course of many years and, in some cases, decades. The publication offers a snapshot of the best available information from 2015 and 2016 on ecological health and our efforts to protect and restore the nation’s largest estuary, as well as our progress toward achieving the goals and outcomes of the Chesapeake Bay Watershed Agreement.

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Assessing Water Quality with Submersed Aquatic Vegetation

Submersed aquatic vegetation is comprised of rooted flowering plants that have colonized primarily soft sediment habitats in coastal, esturine, and freshwater habitats. In Chesapeake Bay, seagrasses in saline regions and freshwater angiosperms that have colonized lower-salinity portions of the estuary constitute a diverse (Approximately 20 species) community of submersersed aquatic vegetation (collectively as SAV; Hurley 1990). Seagrasses are typically defined as the approximately 60 species of marine angiosperms (den Hartog, 1970); however respreantatives of the several hundred species of freshwater macrophytes are often found in estuarine habitats (Hutchinson 1975). For the purpose of this article, the term submersed aquatic vegetation is used for both marine angiosperms and freshwater nmacrophytes that are found in Chesapeake Bay.

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Bay Barometer: Health and Restoration in the Chesapeake Bay Watershed (2014-2015)

The data in Bay Barometer reflect the Chesapeake Bay’s health over the course of many years and, in some cases, decades. The publication offers a snapshot of the best available information from 2014 and 2015 on ecological health and our efforts to protect and restore the nation’s largest estuary, as well as our progress toward achieving the goals and outcomes of the Chesapeake Bay Watershed Agreement.

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Bay Barometer: Health and Restoration in the Chesapeake Bay Watershed (2014-2015)

The data in Bay Barometer reflect the Chesapeake Bay’s health over the course of many years and, in some cases, decades. The publication offers a snapshot of the best available information from 2014 and 2015 on ecological health and our efforts to protect and restore the nation’s largest estuary, as well as our progress toward achieving the goals and outcomes of the Chesapeake Bay Watershed Agreement.

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Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Clorophyll a for the Chesapea

In April 2003, the U.S. Environmental Protection Agency (EPA) published the Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a for the Chesapeake Bay and Its Tidal Tributaries which was the foundation document defining Chesapeake Bay water quality criteria and recommended omplementation procedures for monitoring and assessment (U.S. EPA 2003a). In october 2003, EPA published the Technical Support Document for Identification of Chesapeake Bay Designated Uses and Attainability Which defined the five tidal water designated uses to be protected through the published Bay water quality criteria (U.S. EPA 2003b).

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