Layers:

Layer: Percent reduction in native fish species diversity in the contiguous U.S. from historical levels to 2014 (0)

Name: Percent reduction in native fish species diversity in the contiguous U.S. from historical levels to 2014

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Percent reduction is based on the number of native species determined to be present as of 2015, compared with historical numbers documented prior to 1970. Data are displayed by 6-digit hydrologic unit code (HUC-6) watershed. A species is considered "present" if there is at least one record of its presence in any 8-digit HUC within the 6-digit HUC. This indicator presents a summary of data available from the NatureServe Explorer database (http://www.natureserve.org/conservation-tools/data-maps-tools/natureserve-explorer). The identity and status (current vs. historical) of all native fish species recorded in each 8-digit HUC are available from this database, along with species-by-species distribution maps at the 8-digit HUC level. Analyses based on these data have previously been reported in Master et al. (1998, 2003) and Stein et al. (2000). Data were provided by NatureServe.<br><A HREF="https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid={ABDB79AF-455C-4C17-97B8-B969BC1A9107}" target="_blank"><IMG SRC="https://edg.epa.gov/clipship/doc/metadata.png" BORDER=0></A>

Copyright Text:

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MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:
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YMin: 2816696.3038999997
XMax: -7453285.4516
YMax: 6340548.171899997
Spatial Reference: 102100  (3857)



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