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Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks collected as part of the Dragonfly Mercury Project (DMP)
Categories: Data, Data Release - Revised; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Amistad National Recreation Area, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, All tags...
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Water-quality samples were collected from the Upper Delaware Scenic and Recreational River (UPDE) and its tributaries during the period October 1, 2005, to September 30, 2007, to document existing water quality, determine relations between land use and water quality, and identify areas of water-quality concern. A tiered water-quality monitoring framework was used, with the tiers consisting of intensively sampled sites, gradient sites representing the range of land uses present in the basin, and regional stream-survey sites. Median nitrate and total phosphorous concentrations were 1.15 and 0.01 milligrams per liter (mg/L) for three sites on the mainstem Delaware River, 1.27 and 0.009 mg/L for the East Branch Delaware...
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Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a citizen science framework.
Categories: Data; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, Aquatic Biology, All tags...
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Vegetation map of the Upper Delaware Scenic and Recreational River provides local park-specific names for vegetation types, as well as crosswalks to the National Vegetation Classification System (NVCS), including association, alliance and formation level attributes. Crosswalks to the NVCS were determined on March 7, 2006.
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Jointly managed by multiple states and the federal government, there are many ongoing efforts to characterize and understand water quality in the Delaware River Basin (DRB). Many State, Federal and non-profit organizations have collected surface-water-quality samples across the DRB for decades and many of these data are available through the National Water Quality Monitoring Council's Water Quality Portal (WQP). For this data release, WQP data in the DRB were harmonized, meaning that they were processed to create a clean and readily usable dataset. The harmonization process included the synthesis of parameter names and fractions, the condensation of remarks and other data qualifiers, the resolution of duplicate...
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Data is included for three sets of laboratory experiments where various fish species were tested in several multi-week trials to determine their suitability in serving as parasitic hosts for larvae of the freshwater mussel named dwarf wedgemussel (Alasmidonta heterodon) from the Mid-Atlantic region and New England of the United States. The first set of experiments tested host suitability of multiple fish species, the second compared host suitability of groups of tessellated darters (Etheostoma olmstedi; a known host) from multiple locations, and the third tested host suitability of individual tessellated darters. Results are reported in numbers of juvenile mussels per fish (JPF; total juvenile mussels produced by...
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Data is included for two types of field surveys conducted for freshwater mussels in the mainstem of the middle and upper Delaware River in the Mid-Atlantic region of the United States from 2000-2002. Timed search (qualitative) surveys were conducted during 2000-2001 from a point at the confluence of the East and West Branches of the Delaware River near Hancock, NY continuously downstream to a point at the mouth of the Paulins Kill River near Columbia, NJ. In this qualitative survey, mussel species and counts were collected in the field catch-per-unit-effort (CPUE) data was determined for all mussel species within each of 1,095 consecutive stream sections ~200 m in length. Subsequent quantitative surveys were conducted...


    map background search result map search result map Upper Delaware Scenic and Recreational River Vegetation Mapping Project - Spatial Vegetation Data Water Quality of the Upper Delaware Scenic and Recreational River and Tributary Streams, New York and Pennsylvania Host fishes for the endangered dwarf wedgemussel (Alasmidonta heterodon) from various locations in the northeastern United States (1999-2007) Qualitative and quantitative surveys of native freshwater mussels in the upper and middle Delaware River (2000-2002) Total Mercury Concentrations in Dragonfly Larvae from U.S. National Parks (ver. 6.0, June 2021) Multisource surface-water-quality data and U.S. Geological Survey streamgage match for the Delaware River Basin Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018 Upper Delaware Scenic and Recreational River Vegetation Mapping Project - Spatial Vegetation Data Qualitative and quantitative surveys of native freshwater mussels in the upper and middle Delaware River (2000-2002) Water Quality of the Upper Delaware Scenic and Recreational River and Tributary Streams, New York and Pennsylvania Multisource surface-water-quality data and U.S. Geological Survey streamgage match for the Delaware River Basin Host fishes for the endangered dwarf wedgemussel (Alasmidonta heterodon) from various locations in the northeastern United States (1999-2007) Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018 Total Mercury Concentrations in Dragonfly Larvae from U.S. National Parks (ver. 6.0, June 2021)