ASHAB_March21


Identification Information:
Citation:
Citation Information:
Publication Date: 20170331
Publication Time: 120000
Title: ASHAB_March21
Edition: 2017
Geospatial Data Presentation Form: vector digital data
Other Citation Details: Contains data updates through 2016
Description:
Abstract: UPDATED: March 21, 2019 with data through the 2018 survey year.This coverage was developed from field surveys conducted on the mainstem and selected tributaries of the Aroostook, Dennys, Ducktap, East Machias, Kennebec, Machias, Passagassawakeag, Penobscot, Pleasant, Presumpscot, Saco, Sheepscot, St. George, Tunk and Union Rivers in Maine by staff of the Maine Dept. of Marine Resources - Division of Sea Run Fisheries and Habitat. These surveys were conducted to identify important Atlantic salmon habitat including spawning and rearing areas. The majority of the survey data was collected using Trimble Pro, Pro-XL and GeoExplorer3 receivers and survey files were differentially corrected to provide 2-5 meter accuracy. Surveys for some reaches were collected with minimal or no GPS control points and the attributes were overlaid on a stream centerline created using either a GPS-acquired line, a line derived from MEGIS/USGS 1:24,000 hydrography data, or a line drawn as a centerline based on MEGIS digital orthophotography. The dataset includes information on habitat categories and areas, and an indication of spawning and rearing potential. This data is referred to as Level 3, or detailed habitat survey data, to be contrasted with the Level 2 habitat data which contains the most detailed data for individual habitat units.
Purpose: Atlantic salmon habitat from DMR surveys.
Status:
Progress: In work
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -71.108594
East Bounding Coordinate: -67.130169
North Bounding Coordinate: 46.982379
South Bounding Coordinate: 43.483104
Keywords:
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: biota
Theme Keyword: environment
Theme Keyword: inlandWaters
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: Atlantic salmon
Theme Keyword: habitat survey
Theme Keyword: spawning habitat
Theme Keyword: rearing habitat
Theme Keyword: MaineDMR
Theme Keyword: sea run
Theme Keyword: opendata
Theme Keyword: spatial
Theme Keyword: ESI
Access Constraints: None
Use Constraints: There are no restrictions on the use of this data. However, this coverage should not be redistributed without permission from the Data Source and/or the Automation Agency. Secondary distribution must have this documentation appended. Credit should always be given to the Data source and/or the Automation Agency when the data is transferred or printed.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Maine Dept. of Marine Resources - Division of Sea Run Fisheries and Habitat
Contact Person: Colby Bruchs
Contact Position: Fisheries Scientist
Contact Address:
Address Type: mailing
Address: P.O. Box 178
City: Jonesboro
State or Province: Maine
Postal Code: 04648
Country: UNITED STATES
Contact Voice Telephone: 207-434-5920
Contact Facsimile Telephone: 207-434-5923
Contact Electronic Mail Address: colby.w.b.bruchs@maine.gov
Hours: M-F 8-4
Native Data Set Environment: Esri ArcGIS 12.3.0.15769
Spatial Data Organization Information:
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: String
Point and Vector Object Count: 0
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: ASHAB_March21
Entity Type Definition: Attribute Table
Entity Type Definition Source: MeSRFH
Attribute:
Attribute Label: OBJECTID
Attribute Definition: Internal feature number.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: JoinID
Attribute Definition: Unique Identifier
Attribute Definition Source: MeSRFH
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: YrSurvey
Attribute Definition: Year survey was completed
Attribute Definition Source: MeSRFH
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 1983
Range Domain Maximum: 2015
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: SurveyType
Attribute Definition: Type of survey conducted
Attribute Definition Source: USFWS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: GPS
Enumerated Domain Value Definition: Spatial and detailed attribute information collected with GPS receivers.
Enumerated Domain:
Enumerated Domain Value: GPS-Overlay
Enumerated Domain Value Definition: Historic salmon transect survey or recent simplified (fewer point locations collected; attribute data recorded elsewhere) GPS survey overlaid onto stream centerline in GIS, and with less accuracy than GPS surveys above.
Enumerated Domain:
Enumerated Domain Value: Overlay
Enumerated Domain Value Definition: Least detailed attribute collection used for digitizing of historic paper surveys, or for certain branches that do not contain large amounts of salmon habitat. Attribute data with relative positions overlaid onto stream centerline from MEGIS orthophotography or MEGIS/USGS 1:24,000 hydrography data.
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: HabCat
Attribute Definition: Broad habitat category
Attribute Definition Source: MeSRFH
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Falls
Enumerated Domain Value Definition: Where Habtype = Falls (see Habtype for description of Habtype = Falls).
Enumerated Domain:
Enumerated Domain Value: Flat
Enumerated Domain Value Definition: Where Habtype = Deadwater, Pool, or Glide (see Habtype for description of Habtype = Deadwater, Pool, or Glide).
Enumerated Domain:
Enumerated Domain Value: Riffle
Enumerated Domain Value Definition: Where Habtype = Riffle, Low Gradient Riffle or High Gradient Riffle (see Habtype for description of Habtype = Riffle, Low Gradient Riffle or High Gradient Riffle).
Enumerated Domain:
Enumerated Domain Value: Run
Enumerated Domain Value Definition: Where Habtype = Run or Run1 (see Habtype for description of Habtype = Run or Run1).
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: Area
Attribute Definition: Habitat unit area in square meters.
Attribute Definition Source: Calculated
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0.8
Range Domain Maximum: 1,479,011.1
Attribute Units of Measure: Square Meters
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: Rearing
Attribute Definition: All riffles and runs.
Attribute Definition Source: MeSRFH
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Yes
Enumerated Domain Value Definition: Habitat unit has potential for rearing juvenile Atlantic salmon.
Enumerated Domain:
Enumerated Domain Value: No
Enumerated Domain Value Definition: Habitat unit has no potential for rearing juvenile Atlantic salmon based on the habitat surveys of record.
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: Spawning
Attribute Definition: The survey crew's assessment that usable spawning habitat is present. The primary characteristic considered is substrate. Flows and depths are considered secondarily. The survey crew assigns a percentage of the habitat unit that is suitable for spawning, or identifies one or more limited spawning patches.
Attribute Definition Source: USFWS, MeSRFH
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Yes
Enumerated Domain Value Definition: The entire habitat unit is considered to have spawning potential though it may be limited spatially or qualitatively. Potential spawning area within a flatwater (Habcat = Flat) unit that constitutes more than 30 % of the unit area, mean the entire unit is coded as potential spawning habitat. Refer to the SpawnArea field to verify the amount of spawning habitat in a particular habitat unit.
Enumerated Domain:
Enumerated Domain Value: Limited
Enumerated Domain Value Definition: The habitat unit is considered to have limited spawning potential. If the potential spawning area in a flatwater (HabCat = Flat) unit constitutes less than 30 % of the unit area, the entire unit is coded as limited spawning habitat. Refer to the SpawnArea field to verify the amount of spawning habitat in a particular habitat unit.
Enumerated Domain:
Enumerated Domain Value: No
Enumerated Domain Value Definition: No spawning potential was identified for this area in the field surveys of record.
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: Stream
Attribute Definition: The name of the stream as derived from the Maine Dept. of Marine Resources, Sea Run Fisheries and Habitat Division MaineSalmon database, and based primarily on names taken from USGS 1:24,000 topographic map data.
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: Drainage
Attribute Definition: Name of the major watershed in which the habitat unit is located.
Attribute Definition Source: MeSRFH
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: SpawnArea
Attribute Definition: Area within the habitat unit in square meters that is considered suitable for spawning. Defined by one of two methods: Spawning Patch Dimensions - if a single, small, discrete portion of the habitat unit was considered potentially useful for spawning, the dimensions of the patch were recorded (units coded as Habcat = "Flat" can be coded as spawning units); or Proportion of Habitat Unit - if multiple spawning patches were present, or a single, large spawning patch was identified such that obtaining dimensions of the patch was difficult, estimation of the proportion of the habitat unit potentially useful for spawning was made and applied to Area to yield SpawnArea.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 54,447
Attribute Units of Measure: Square Meters
Beginning Date of Attribute Values: 19830101
Ending Date of Attribute Values: 20161231
Attribute:
Attribute Label: Shape_Leng
Attribute:
Attribute Label: Shape_Length
Attribute Definition: Length of feature in internal units.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Overview Description:
Entity and Attribute Overview:
This dataset represents habitat units as lines, and includes attributes identifying spawning and rearing areas, habitat categories, habitat unit areas, as well as stream and drainage names.  Note that codes of -99 signify that no data exists for that record.
Distribution Information:
Distribution Liability: See access and use constraints information.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: Personal GeoDatabase Feature Class
Transfer Size: 0.000
Metadata Reference Information:
Metadata Date: 20190321
Metadata Future Review Date: 20180331
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Maine Dept. of Marine Resources - Divison of Sea Run Fisheries and Habitat
Contact Person: Colby Bruchs
Contact Position: Fisheries Scientist
Contact Address:
Address Type: mailing
Address: P.O. Box 178
City: Jonesboro
State or Province: Maine
Postal Code: 04648
Country: UNITED STATES
Contact Voice Telephone: 207-434-5920
Contact Facsimile Telephone: 207-434-5923
Contact Electronic Mail Address: colby.w.b.bruchs@maine.gov
Hours: M-F 8-4
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Use Constraints: There are no restrictions on the use of this data. However, this coverage should not be redistributed without permission from the Data Source and/or the Automation Agency. Secondary distribution must have this documentation appended. Credit should always be given to the Data source and/or the Automation Agency when the data is transferred or printed.