NFHP Data System Home >> Map Viewers >> NFHP Data Theme Viewer
Information icon
Zoom in and click an area for more information
Retrieving Data...
Loading Layer Icon
Provided by the National Aquatic Gap Analysis Program
Select
Background Map
Low Detail Gray
(Default)
USGS National Map
Microsoft Bing Aerial
Microsoft Bing Street

Data themes available in this viewer are those that have been identified as priority data needed to aid in the scientific assessments of fish habitat and fish populations. The Biological Data theme will primarily consist of fish data until other species occurrence data are identified as priority of NFHP and provided for broader access.

Compiling data for the Connectivity Data Theme will be focused on next. Future priority data themes will be determined through the efforts of the National Science and Data Committee.

Selections from this menu include "All Datasets" or "Linked to Spatial Framework."

"All Datasets" refers to datasets that have been made available to the National Fish Habitat Partnership and follow the NFHP data management requirements including FGDC compliant metadata documentation and approval processes for data release.

In addition to following the NFHP data management requirements, datasets that are "Linked to Spatial Framework" have also undergone additional processing that attributes the data to the finest spatial classification unit in the NFHP spatial framework, which is a reach of the National Hydrography Dataset Plus Version 1 (NHDPlusV1) at 1:100K. By linking these data to the NHDPlusV1, the data are in turn linked to the other coarser units in the NFHP spatial framework including the Hydrologic Unit Code (HUC)12, HUC8, and Ecological Drainage Units.

Selections from this menu include "Number of Datasets" or "Number of Samples". Both selections display counts per 12-digit Hydrologic Unit Code (HUC12).

"Number of Datasets" refers to the count of datasets that have information within each HUC12.

"Number of Samples" refers to the total count of records from the selected datasets within each HUC12.

Change the map display by selecting from the options below
Select a data theme  Data Theme:
Biological Datasets Projects and Monitoring
Select which datasets to display  Datasets:
All Datasets Linked to Framework Only
Select number of datasets or samples  Summary View:
Number of datasets Number of samples
Data Theme: Biological Datasets
All available datasets
Number of datasets available by HUC12
This map depicts the density of the number of biological datasets that are available for download in the NFHP data system, by Hydrologic Unit Code (HUC) 12 watershed. Click on an individual HUC12 to see which of the datasets below contain data for that HUC.
Fewer
Datasets
map legend
More
Datasets
Data Theme: Biological Datasets
All available datasets
Number of samples available by HUC12
This map depicts the density of the number of biological point samples that are available for download in the NFHP data system, by Hydrologic Unit Code (HUC) 12 watershed. Click on an individual HUC12 to see which of the datasets below contain data for that HUC.
Less
Samples
map legend
More
Samples
Data Theme: Biological Datasets
Lnked to NFHAP Framework Only
Number of datasets available by HUC12
This map depicts the density of the number of biological datasets that are available for download in the NFHP data system, by Hydrologic Unit Code (HUC) 12 watershed. Click on an individual HUC12 to see which of the datasets below contain data for that HUC.
Fewer
Datasets
map legend
More
Datasets
Data Theme: Biological Datasets
Lnked to NFHAP Framework Only
Number of samples available by HUC12
This map depicts the density of the number of biological point samples that are available for download in the NFHP data system, by Hydrologic Unit Code (HUC) 12 watershed. Click on an individual HUC12 to see which of the datasets below contain data for that HUC.
Less
Samples
map legend
More
Samples
Data Theme: Project and Monitoring Locations
This map depicts the density of the number of projects and monitoring locations that are available for viewing and/or download (via the NFHP data system), displayed by Hydrologic Unit Code (HUC) 12 watershed. Click on an individual HUC12 to see which of the datasets below contain data for that HUC.
Fewer
Locations
map legend
More
Locations
List of datasets summarized on this map
List of datasets summarized on this map
List of datasets summarized on this map
Reference Layers

Additional map layers may be displayed on top of the map. These layers include State and County Boundaries, Congressional Districts, and NHD Hydrography, three map layers from the National Map effort of the U.S. Geological Survey's National Geospatial Program, and Landscape Conservation Cooperatives (LCCs). LCCs are public-private partnerships working toward a more networked approach to conservation; holistic, collaborative, adaptive and grounded in science to ensure the sustainability of America's land, water, wildlife and cultural resources.

To display a layer on top of the map, select it from the list and make sure the check box next to Reference Layers is also selected.

View:
State/County Boundaries Congressional Districts Landscape Conservation Cooperatives NHD Streams and Watersheds