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Tom Leigh, Riverkeeper at the Chester River Association, measuring Secchi depth, an indicator of water clarity
Water quality monitoring
Brent Walls, Watershed Coordinator/Scientist with the Chester River Association, monitoring water quality in the Chester River
Water quality monitoring
Tom Leigh, Riverkeeper with the Chester River Association, out on a water quality monitoring trip on the Chester River
Water quality monitoring
Tom Leigh, Riverkeeper with the Chester River Association, out on a water quality monitoring trip on the Chester River
Water quality monitoring
Brent Walls, Watershed Coordinator/Scientist with the Chester River Association, monitoring water quality in the Chester River
Water quality monitoring
Brent Walls, Watershed Coordinator/Scientist with the Chester River Association, monitoring water quality in the Chester River
Water quality monitoring
Brent Walls, Watershed Coordinator/Scientist with the Chester River Association, out on a water quality monitoring trip on the Chester River
Water quality monitoring
IAN released their 2008 Chesapeake Bay Report Card on the Patuxent Riverbank
2008 Chesapeake Bay Report Card Press Release
Doing a demonstration of water quality testing for their 2008 Chesapeake Bay Report Card release on the Patuxent Riverbank
Testing Water quality
Doing a demonstration of water quality testing for their 2008 Chesapeake Bay Report Card release on the Patuxent Riverbank
Testing Water quality
Doing a demonstration of water quality testing for their 2008 Chesapeake Bay Report Card release on the Patuxent Riverbank
Testing Water quality
Conceptual diagram illustrating model for anthropogenic nitrogen exchanges in a watershed.
Anthropogenic nitrogen exchanges
Conceptual diagram illustrating aquifers in respect to the Maryland Coastal Bays. These aquifers are both surficial (unconfined) and deeper (confined).
Aquifers underlying the Coastal Bays
Conceptual diagram illustrating the minimum amounts of oxygen that different aquatic organisms needs to survive.
Criteria for dissolved oxygen for aquatic life
Posted by the Florida Department of Health to inform beach visitors on up-to-date water quality information
Healthy Beaches Program
Conceptual diagram illustrating the elements that contribute to a healthy watershed.
Healthy waterways
Conceptual diagram illustrating a mathematical model which represents nitrogen inputs and exports in coastal bays.
Nitrogen exchange in a coastal bay
Conceptual diagram illustrating the differences between surfaces that allow groundwater flow, and surfaces that restrict it, and how each affects groundwater quality.
Pervious vs. impervious surfaces
Conceptual diagram illustrating the factors that influence how much light is absorbed by seagrass. This includes phytoplankton, organic matter, suspended sediment, and the epiphytes that grow on the seagrass.
Relative light attenuation for seagrass
Conceptual Diagram illustrating the elements of a soft shoreline and how they can benefit a habitat, versus the elements of a hard shoreline that offer few benefits towards a habitat, and in some cases can be damaging.
Soft vs. hard shorelines
Filtering water samples for chlorophyll a, total suspended solids, total volatile solids, and suspended particulate matter. Filtered water can be used to measure dissolved nutrients such as nitrogen and phosphorus.
Filtering water samples
Filtering water samples for chlorophyll a, total suspended solids, total volatile solids, and suspended particulate matter. Filtered water can be used to measure dissolved nutrients such as nitrogen and phosphorus.
Filtering water samples
Monitoring the water quality on Monie Bay
Monitoring Water Quality
Recording water quality measurements from a YSI sonde while monitoring in Monie Creek, part of the Monie Bay National Estuarine Research Reserve.
Monitoring water quality
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