Parent Layer: Non-Tidal

Name: MBSS BIBI Random Stations

Display Field: StreamName

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: This layer includes non-tidal Benthic Index of Biotic Integrity (B-IBI) data (1996-2014) for randomly selected stations surveyed by the Maryland Biological Stream Survey (MBSS, http://dnr.maryland.gov/streams/Pages/mbss.aspx). 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 is restricted each year to approximately one-third of the major drainage basins (Mercurio et al., 1999). At each MBSS sampling location, benthic macroinvertebrates are sampled from a 20 ft2 area with a standard D-net (Stranko et al., 2014). Community composition data is used to calculate a suite of summary metrics that are included in the calculation of a B-IBI for the Coastal Plain region (Southerland et al., 2005). This layer displays randomly selected MBSS stations that have been sampled within the Choptank by year.

Copyright Text: 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: 468930.15627190773
YMin: 93461.75712794065
XMax: 510175.255287885
YMax: 164209.08579671197
Spatial Reference: 26985  (26985)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: Year
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: 1996
  Label: 1996
  Description: N/A
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• Value: 1997
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• Value: 2000
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• Value: 2001
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• Value: 2002
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• Value: 2003
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• Value: 2004
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• Value: 2005
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• Value: 2006
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• Value: 2007
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• Value: 2008
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• Value: 2009
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• Value: 2010
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• Value: 2011
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• Value: 2012
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• Value: 2013
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• Value: 2014
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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 )
• Benthic_IB ( type: esriFieldTypeDouble, alias: Benthic Index )
• 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

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