Name: NFHP 2015 Conterminous US Assessment of Fish Habitat Degradation

Display Field: hci_lc_hcitxt

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: These data contain cumulative fish habitat condition index (HCI) scores generated for river reaches of the conterminous United States as well as indices generated specifically for four spatial units including local and network catchments and 90 m local and network buffers of river reaches. Note that the cumulative HCI score is determined from limiting index scores generated for the four spatial units listed above. Detailed methods for calculating cumulative fish habitat condition index scores as well as the indices for each spatial extent can be found on the following website: https://assessment.fishhabitat.org/: The variables used to create indices in catchments vs. buffers differ due to differences in resolution of datasets. The following anthropogenic disturbance variables were used to create local and network catchment indices: Percent of urban land use, percent of impervious surface, human population density, road density, percent of pasture/hay, percent of cultivated crops, density of point source pollution sites (National Pollution Discharge Elimination, Toxic Inventory Release and National Superfund), nutrient and sediment loading to watersheds, habitat fragmentation metrics (density of dams and road crossings), density of mines and water withdrawals. The following anthropogenic disturbance variables were analyzed to create the local and network buffer indices: percent of urban land use, percent of agriculture, percent of pasture/hay and percent of impervious surface. 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; (3) representative of conditions in the past 10 years, and (4) of sufficient spatial resolution that they could be used to make valid comparisons among local catchment and buffer units. Also included in these data are the most limiting and severe disturbances to stream reaches operating within each of the four spatial extents. Limiting disturbances are defined as those disturbances that result in a stream reach not being in the best available condition determined for the region. Severe disturbances are a subset of limiting disturbances that are associated with stream reaches in a given region that were scored as having high or very high risk of habitat degradation (red and orange color groups). In this dataset, indices as well as limiting and severe disturbances are linked to the stream reaches, catchments and buffers created for the National Hydrography Dataset Plus Version 1 (NHDPlusV1) using the COMID identifier. It is important to recognize that these broadly-defined disturbance variables often act together with other measured or unmeasured threats to degrade habitat. Thus, while we may identify “urbanization” as a major threat to fish habitat in some regions, “urbanization” represents an umbrella term that describes many facets of urban development that could cause degradation to habitats. Fields in this dataset that begin with the "L_" prefix represent the local catchment whereas network catchments (defined by all upstream contributing catchments to the reach's outlet, including the reach's own local catchment; attributes begin with "N_" prefix. Like the catchment variables the buffer variables are labeled using a "LB_" and "NB_" prefix for local buffer and network buffer variables, respectively. More information about the processes used to create scores can be found in the processes section. Version 2.0 includes the addition of severe disturbances for each spatial scale and fixes errors documented in the change log. These data are part of the NFHP 2015 National Assessment. Data Citation: Daniel, W.M, Infante, D.M, Herreman, K., Cooper, A., and Ross, J., 2019, National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Indices and Limiting Disturbances for the Conterminous United States linked to NHDPlusV1, (ver. 2.0, March 2019): U.S. Geological Survey data release, https://doi.org/10.5066/P94C5B06.

Copyright Text: Michigan State University, National Fish Habitat Partnership

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON

Min Scale: 35000000

Max Scale: 10000

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:

XMin: -1.3885276673401516E7
YMin: 2856028.7001785003
XMax: -7452795.6740304455
YMax: 6960849.831611931
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: hci_cu_hcitext
Field 2: null
Field 3: null
Field Delimiter: ,
Default Symbol:
N/A
Default Label: null
UniqueValueInfos:
• Value: Very low
  Label: Very Low Risk of Fish Habitat Degradation
  Description: Very Low Risk of Fish Habitat Degradation
  Symbol:
  Style: esriSFSSolid
  Color: [197, 0, 255, 255]
  Outline:
  Style: esriSLSNull
  Color: [110, 110, 110, 255]
  Width: 0
• Value: Low
  Label: Low Risk of Fish Habitat Degradation
  Description: Low Risk of Fish Habitat Degradation
  Symbol:
  Style: esriSFSSolid
  Color: [0, 197, 255, 255]
  Outline:
  Style: esriSLSNull
  Color: [110, 110, 110, 255]
  Width: 0
• Value: Moderate
  Label: Moderate Risk of Fish Habitat Degradation
  Description: Moderate Risk of Fish Habitat Degradation
  Symbol:
  Style: esriSFSSolid
  Color: [233, 255, 190, 255]
  Outline:
  Style: esriSLSNull
  Color: [110, 110, 110, 255]
  Width: 0
• Value: High
  Label: High Risk of Fish Habitat Degradation
  Description: High Risk of Fish Habitat Degradation
  Symbol:
  Style: esriSFSSolid
  Color: [255, 170, 0, 255]
  Outline:
  Style: esriSLSNull
  Color: [110, 110, 110, 255]
  Width: 0
• Value: Very high
  Label: Very High Risk of Fish Habitat Degradation
  Description: Very High Risk of Fish Habitat Degradation
  Symbol:
  Style: esriSFSSolid
  Color: [255, 0, 0, 255]
  Outline:
  Style: esriSLSNull
  Color: [110, 110, 110, 255]
  Width: 0
• Value: Not scored
  Label: Not scored
  Description: Catchment Not Scored
  Symbol:
  Style: esriSFSSolid
  Color: [178, 178, 178, 255]
  Outline:
  Style: esriSLSNull
  Color: [110, 110, 110, 255]
  Width: 0
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• hci_comid ( type: esriFieldTypeDouble, alias: comid )
• hci_ecoid ( type: esriFieldTypeInteger, alias: ecoid )
• hci_lc_hci ( type: esriFieldTypeDouble, alias: lc_hci )
• hci_nc_hci ( type: esriFieldTypeDouble, alias: nc_hci )
• hci_lb_hci ( type: esriFieldTypeDouble, alias: lb_hci )
• hci_nb_hci ( type: esriFieldTypeInteger, alias: nb_hci )
• hci_cumu_hci ( type: esriFieldTypeDouble, alias: cumu_hci )
• hci_lc_hcitxt ( type: esriFieldTypeString, alias: lc_hcitxt, length: 8000 )
• hci_nc_hcitext ( type: esriFieldTypeString, alias: nc_hcitext, length: 8000 )
• hci_lb_hcitext ( type: esriFieldTypeString, alias: lb_hcitext, length: 8000 )
• hci_nb_hcitext ( type: esriFieldTypeString, alias: nb_hcitext, length: 8000 )
• hci_cu_hcitext ( type: esriFieldTypeString, alias: cu_hcitext, length: 8000 )
• hci_lc_severe ( type: esriFieldTypeString, alias: lc_severe, length: 8000 )
• hci_lb_severe ( type: esriFieldTypeString, alias: lb_severe, length: 8000 )
• hci_nc_severe ( type: esriFieldTypeString, alias: nc_severe, length: 8000 )
• hci_nb_severe ( type: esriFieldTypeString, alias: nb_severe, length: 8000 )
• hci_lc_limit ( type: esriFieldTypeString, alias: lc_limit, length: 8000 )
• hci_lb_limit ( type: esriFieldTypeString, alias: lb_limit, length: 8000 )
• hci_nc_limit ( type: esriFieldTypeString, alias: nc_limit, length: 8000 )
• hci_nb_limit ( type: esriFieldTypeString, alias: nb_limit, length: 8000 )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata