Nutrient reduction efforts have been undertaken in recent decades to mitigate the impacts of eutrophication in coastal and estuarine systems worldwide. To track progress in response to one of these efforts we use Generalized Additive Models (GAMs) to evaluate a diverse suite of water quality constituents over a 32-year period in the Chesapeake Bay, an estuary on the east coast of the United States.

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This guide includes detailed instructions for volunteers who are using the Water Reporter platform to collect and submit data for the Chesapeake Bay SAV Watchers Introductory Monitoring Program.

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The Methods Manual includes background information on SAV and the Chesapeake Bay SAV Watchers Monitoring Program, detailed protocol for the Advanced Monitoring Program (Tier 2), safety information, an updated SAV species guide, and many other resources.

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A pocket-sized SAV species identification guide that also includes a field packing list, protocol reminders, and reference photos of other macrophytes. For use in the field by volunteers participating in the Chesapeake Bay SAV Watchers Introductory and Advanced Monitoring Programs. This version is designed to be viewed on a phone or computer screen.

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A pocket-sized SAV species identification guide that also includes a field packing list, protocol reminders, and reference photos of other macrophytes. For use in the field by volunteers participating in the Chesapeake Bay SAV Watchers Introductory and Advanced Monitoring Programs. This version is designed for double-sided printing.

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The Tuul River Basin Report Card—the first of its kind in Mongolia—assesses the basin's health through social, environmental and economic values that can be tracked over time in response to management actions and/or external pressures. The Tuul River Basin has been evaluated in this assessment as “moderate” health or ‘C’, meaning urgent management interventions are required to maintain the health of the river.

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Tuul River Basin Report Card Methods Document in Mongolian.

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Tuul River Basin Report Card in Mongolian

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Over the past century, the environment of the Gulf of Mexico has been significantly altered and impaired by extensive human activities. A national commitment to restore the Gulf was finally initiated in response to the unprecedented Deepwater Horizon oil spill in 2010. Consequently, there is a critical need for an assessment framework and associated set of indicators that can characterize the health and sustainability of an ecosystem having the scale and complexity of the Gulf.

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Natural Resource Condition Assessments (NRCAs) assess and report on park resource conditions and are meant to complement traditional issue and threat-based resource assessments. NRCAs report on current conditions, trends, and critical data gaps for a subset of natural resource indicators.

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