Maryland’s extensive aquatic ecosystems range from freshwater swamps and bogs to freshwater rivers and marshes to coastal bays and salt marshes. These ecosystems are influenced by precipitation, temperature, tropical storms, and human activity. Human development and pollution have degraded their natural resilience, leaving them more vulnerable to climate change and extreme events.

This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. In 2012, the methods for the report card have changed to include five water quality indicators and two biotic indicators. In 2012, the overall grade for Chesapeake Bay is a 47%, a C. This means the Bay is in moderate health. Fisheries indicators as well as trajectories of reporting region health are also presented. For further details, visit the Report Card website .

This document provides guidelines for the successful production of non-tidal stream health report cards. Specifically, this document develops clear and consistent protocols for the identification, collection, and analysis of indicators to be used by report card-producing organizations in Mid-Atlantic rivers and streams.

Anthropogenic nitrogen contributes to water quality degradation, but it is difficult to distinguish sources once they are mixed in coastal ecosystems. Natural abundances of stable nitrogen isotopes (deltaN-15) were measured in oyster (Crassostrea virginica) tissues (muscle, gills, and mantle) during summer 2006 to summer 2008 to identify nitrogen sources in Monie Bay (a subestuary of Chesapeake Bay) receiving freshwater inputs from three tributary creeks. The creeks (estimated flushing times:

The National Fish and Wildlife Foundation established a Hurricane Sandy Wildlife Response Fund to conduct a rapid assessment of the ecological impacts of Hurricane Sandy from North Carolina to Rhode Island, with emphasis on habitats and associated wildlife.

The Chesapeake and Atlantic Coastal Bays Trust Fund was created in 2007 in an effort to reduce nutrient and sediment pollution to these bays. The Trust Fund has focused its financial resources on the implementation of effective non-point source pollution control projects using best management practices (BMPs) in high priority watersheds. Examples of projects supported by the Trust Fund include stream channel restorations, stormwater retrofits, and cover crops.

The Chesapeake Bay Trust, West/Rhode Riverkeeper, and OpinionWorks have conducted an audience evaluation of tributary report cards, conducted through focus groups. This report provides the findings and recommendations that arise from this research. The report also serves as a best management guide for creating report cards that not only report on water quality, but also engage the public in the work of protecting the Bay and its tributaries.

This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. The overall health of Chesapeake Bay, determined using water quality and biotic indicators, declined slightly in 2011. The overall grade of D+ was a decrease for the second year in a row, down from a C- in 2010. Only two reporting regions, the Patapsco and Back Rivers, and the Lower Western Shore (MD), had improved grades in 2011.

The Chesapeake and Atlantic Coastal Bays Trust Fund was created in 2007 in an effort to reduce nutrient and sediment pollution to these bays. The Trust Fund has focused its financial resources on the implementation of effective non-point (i.e., diffuse) source pollution control projects in high priority watersheds. This newsletter details examples of projects supported by the Trust Fund including stream channel restorations, stormwater retrofits, and cover crops.

This document provides guidelines for the successful production of tidal ecosystem health report cards. Specifically, this document serves as an addendum to the Sampling and data analysis protocols for Mid-Atlantic tidal tributary indicators which develops a clear and consistent protocol for the identification, collection, and analysis of the indicator of bacteria.