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:
Default Label: N/A
UniqueValueInfos:
-
Value: 1996
Label: 1996
Description: N/A
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Label: 1997
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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
)
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OBJECTID
(
type: esriFieldTypeOID, alias: OBJECTID
)
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Shape
(
type: esriFieldTypeGeometry, alias: Shape
)
-
Year
(
type: esriFieldTypeInteger, alias: Year
)
Supported Operations:
Query
Query Attachments
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