Folders: ROOT > ScienceBase Catalog > USGS Gap Analysis Project (GAP) > USGS Aquatic Gap Analysis Project ( Show direct descendants )
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This item contains a service link that returns the count of catchments having high risk to habitat degradation in the Northeastern States, which can be used to populate the Current Degradation Chart. In addition, it returns the geometry for the selected catchments, which can be used to spatially display the location of the catchments having high disturbance.
This database contains physical and biological data for the Lower Colorado River Basin. The metrics include information on geology, hydrology, landcover, stewardship, topography, soil types and characteristics, stream characteristics, connectivity, and watershed position (information on where a stream segment or catchment is located in relationship to other segments or catchments; e.g. distance from a catchment to the mouth of the Colorado River, Shreve Link). In addition, there is a table with predicted probability of species occurrence for the connected stream segments and tables with the data used in those models. The species distribution models were completed for 18 native fish species and 21 non-native fish...
Conservation priority ranks and threat metrics for each drainage catchment in the Lower Colorado River Basin. Catchments are the drainage area (local watersheds) for each individual stream segment within the 1:100,000 scale National Hydrography Plus Version 1 (NHDPlusV1) dataset. Catchments are assigned conservation priority ranks (C_ConsVal) between 0 - 1 with 1 being the highest priority.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Habitat Characterization,
NFHP Cooperator,
NHDPlusV1,
Regional Assessment,
Spatial Data,
This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the Eastern Brook Trout Joint Venture. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the boundary of the Eastern Brook Trout Joint Venture. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled;...
Categories: Data;
Types: ArcGIS REST Map Service,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Anthropogenic factors,
Aquatic habitats,
Atlantic Coast FHP,
Catchment areas,
Connecticut,
The main objective of this project was to develop a dataset of large, anthropogenic barriers that are spatially linked to the National Hydrography Dataset Plus Version 1 (NHDPlusV1) for the conterminous U.S. and the high resolution National Hydrography Dataset (NHD) for Alaska (1:63,000 scale) and Hawaii (1:24,000 scale) to facilitate GIS analyses based on the NHDPlusV1/NHD and NID datasets. To meet this objective, Michigan State University conducted a spatial linkage of the point dataset of the 2009 National Inventory of Dams (NID) created by the U.S. Army Corps of Engineers (USACE) to the NHDPlusV1/NHD. The pool of dam data included were modified based on 1) dam removals that occurred after development of the...
This item contains a service link that returns the count of catchments having low risk to habitat degradation in the Northeastern States, which can be used to populate the Current Degradation Chart. In addition, it returns the geometry for the selected catchments, which can be used to spatially display the location of the catchments having low disturbance.
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