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From 2 April - 29 April 2022, a Virginia Tech team of 2-3 sampled the macroinvertebrate community in 30 Coastal Plain streams (Delaware, Maryland and Virginia, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature,fish community, and fish health at the same 30 streams. Macroinvertebrates were sampled using a 250 micrometer mesh slack sampler on a known area. At each stream, samples were collected in two ways. 1) Five slack samples were taken in riffles according to the USGS National Water-Quality Assessment protocol, and 2) Five additional slack samples were collected in the most productive available habitat types such as woody debris, undercut...
Tags: Aquatic Biology,
Aquatic Macroinvertebrates,
Caroline County,
Chester River,
Choptank River, All tags...
Delaware,
Delmarva Peninsula,
Dorchester County,
Ecology,
Geomorphology,
Hydrology,
Kent County,
Land Use Change,
Maryland,
Nanticoke River,
New Castle County,
Pocomoke River,
Queen Anne's County,
Somerset County,
Sussex County,
Talbot County,
USGS Science Data Catalog (SDC),
United States,
Virginia,
Water Quality,
Wicomico County,
Wicomico River,
biota,
community ecology,
field sampling,
freshwater ecosystems,
river systems, Fewer tags
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Tree growth (annual tree ring measurements) and plant community composition data of tidal freshwater forested wetlands along longitudinal riverine positions (upper, lower, and stressed tidal river sites, and nearby upstream non-tidal forested floodplains) of the adjoining Pamunkey and Mattaponi Rivers, Virginia.
Categories: Data;
Tags: Botany,
Chesapeake,
Ecology,
Forestry,
Freshwater Tidal Forest/Woodland, All tags...
Land Use Change,
Mattaponi,
Pamunkey,
USGS Science Data Catalog (SDC),
Virginia,
Water Resources,
biota,
community ecology,
dendrochronology,
ecology,
ecosystem monitoring,
river discharge,
salinity,
sea-level change,
stream discharge,
tree cores,
vascular plants,
vegetation, Fewer tags
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The USGS and Virginia Tech are determining if and how the implementation of conservation practices, such as best management practices (BMPs), in watersheds have improved the health of Chesapeake nontidal streams. Our goal is to identify the effects of BMPs and land-use on stream ecosystems by linking upstream landscape change to stream physical habitat, water quality, flow and temperature, and macroinvertebrate and fish responses. We are also determining the specific sources of stress to streams and fish populations to help identify which management practices are most likely to improve stream health. Each year from 2021 to 2024 we study a different Chesapeake landscape setting that is a focus area for stakeholders...
Categories: Data;
Tags: Chesapeake,
best management practices,
ecosystem,
fish,
land use, All tags...
macroinvertebrates,
stream,
stream health,
stressor,
water quality,
watershed, Fewer tags
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The data presented in this data release includes 11 field/water quality parameters, concentrations of 16 nutrients/anions, dissolved organic carbon, 14 organic contaminants, net estrogenicity concentrations, and 51 inorganic constituents in surface water collected twice from 28 stream sites and collected once from 2 stream sites in the Shenandoah Valley (Virginia and West Virginia, USA), in the summer of 2021 (Table_1_Sites and Table_2_Methods). The estrogenicity, inorganic, and organic chemical characteristics of river waters were analyzed using 19 separate analytical methods at 5 laboratories (Table_2_Methods). Surface water was analyzed for water quality and nutrients (Table_3_WQ_Nutrients_Anions_DOC), toxic...
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This study evaluated surface elevation change and vertical accretion of sediments in hollows and on top of hummocks associated with the base of tree stems in tidal freshwater forested wetlands. Sites were along a gradient of habitat change from freshwater forest to marsh and tracked hollow subsidence and in-filling with transgression over 6 (Virginia) to 12 (South Carolina/Georgia) years. Both deep and shallow Surface Elevation Tables (SETs) were used and compared with accretion of surficial sediments during overlapping assessment periods.
Categories: Data;
Tags: Ecology,
Mattaponi River, Virginia, USA,
Pamunkey River, Virginia, USA,
Savannah River, Georgia, USA,
USGS Science Data Catalog (SDC), All tags...
Waccamaw River, South Carolina, USA,
biota,
hollow,
hummock,
sediment elevation tables,
tidal freshwater rivers, Fewer tags
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