Parent Layer: Fish Habitats

Name: Choptank MBSS Fish IBI - Condition

Display Field: StreamName

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: This layer includes non-tidal Fish Index of Biotic Integrity (F-IBI) data (1996-2014) for randomly selected stations surveyed by the Maryland Biological Stream Survey (MBSS, http://dnr.maryland.gov/streams/Pages/mbss.aspx), represented as points. The goals of the MBSS, which began in 1995, are to assess current condition and changes in ecological resources of Maryland’s 1st through 4th order non-tidal streams, as well as provide an inventory of biodiversity and identify effects of stressors on the natural resources (Stranko et al., 2014). The MBSS is a stratified random survey with a lattice design. Year and basin are included as strata and sampling has been restricted to approximately one-third of the major drainage basins each year (Mercurio et al., 1999). An electrofishing component is utilized to survey fish communities. Community composition data is used to calculate a suite of summary metrics that are included in the calculation of a F-IBI for the Coastal Plain region (Southerland et al., 2005). Established criteria are then used to score the metrics 1, 3, or 5, and the average of all individual metric scores represents the F-IBI (Stribling et al., 1998). The MBSS F-IBI scores can be further classified into four condition ranges: “Good“ (≥4.0), “Fair” (3.0-3.9), “Poor” (2.0-2.9), and “Very Poor“ (1.0-1.9). The F-IBI values for each station and sampling date were coded for condition based on these criteria.

Copyright Text: The Maryland Biological Stream Survey

Default Visibility: false

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:

XMin: 468939.8624137264
YMin: 93461.75720597152
XMax: 510175.2552868053
YMax: 163097.88593596034
Spatial Reference: 26985  (26985)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: CONDITION
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Good
  Label: Good
  Description: N/A
  Symbol:
  Style: esriSMSCircle
  Color: [0, 97, 0, 255]
  Size: 8.0
  Angle: 0.0
  XOffset: 0
  YOffset: 0
  Outline:
  [0, 0, 0, 255] Width: 0
• Value: Fair
  Label: Fair
  Description: N/A
  Symbol:
  Style: esriSMSCircle
  Color: [164, 196, 0, 255]
  Size: 8.0
  Angle: 0.0
  XOffset: 0
  YOffset: 0
  Outline:
  [0, 0, 0, 255] Width: 0
• Value: Poor
  Label: Poor
  Description: N/A
  Symbol:
  Style: esriSMSCircle
  Color: [255, 187, 0, 255]
  Size: 8.0
  Angle: 0.0
  XOffset: 0
  YOffset: 0
  Outline:
  [0, 0, 0, 255] Width: 0
• Value: Very Poor
  Label: Very Poor
  Description: N/A
  Symbol:
  Style: esriSMSCircle
  Color: [255, 38, 0, 255]
  Size: 8.0
  Angle: 0.0
  XOffset: 0
  YOffset: 0
  Outline:
  [0, 0, 0, 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
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• StreamName ( type: esriFieldTypeString, alias: Stream Name, length: 30 )
• Latitude83 ( type: esriFieldTypeDouble, alias: Latitude )
• Longitude8 ( type: esriFieldTypeDouble, alias: Longitude )
• Fish_IBI ( type: esriFieldTypeDouble, alias: Fish Index of Biological Integrity )
• CONDITION ( type: esriFieldTypeString, alias: Condition, length: 9 )
• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• Year ( type: esriFieldTypeInteger, alias: Year )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata