Identification_Information:
Citation:
Citation_Information:
Originator: US Fish and Wildlife Service - Gulf of Maine Coastal Program
Publication_Date: 20010918
Title: Maine Atlantic Salmon Habitat Survey - Level 2
Geospatial_Data_Presentation_Form: Map
Publication_Information:
Publication_Place: Falmouth, ME
Publisher: US Fish and Wildlife Service - Gulf of Maine Coastal Program
Larger_Work_Citation:
Citation_Information:
Originator: Maine Atlantic Salmon Commission
Publication_Date: 20010918
Title: Maine Atlantic Salmon Habitat Survey
Publication_Information:
Publication_Place: Falmouth, ME
Publisher: US Fish and Wildlife Service - Gulf of Maine Coastal Program
Other_Citation_Details:
Description:
Abstract: This coverage was developed from field surveys conducted on selected Penobscot and Kennebec tributaries, and the Dennys, Ducktrap, East Machias, Machias, Pleasant, Narraguagus and Sheepscot Rivers in Maine by staff of the Maine Atlantic Salmon Commission and US Fish and Wildlife Service. 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 and Pro-XL receivers and survey files were differentially corrected to provide 2-5 meter accuracy. Surveys for some reaches were collected during the 1980's and the attributes were overlaid onto a line created from a GPS-acquired centerline, or a single-line stream from MEGIS/USGS 1:24,000 hydrography data. The coverage includes information on habitat categories and areas, and an indication of spawning and rearing potential, as well as detailed attribute information concerning stream dimensions, substrates, vegetation, and other stream characteristics.
Purpose: This dataset is designed to be used in a variety of management and planning activities including fry stocking, developing production estimates and habitat protection efforts.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19840601
Ending_Date: 20000815
Currentness_Reference: In Work
Status:
Progress: In work
Maintenance_and_Update_Frequency: Annually
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -69.813
East_Bounding_Coordinate: -67.226
North_Bounding_Coordinate: 45.171
South_Bounding_Coordinate: 44.084
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Atlantic salmon
Theme_Keyword: habitat survey
Theme_Keyword: spawning habitat
Theme_Keyword: rearing habitat
Access_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.
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.
Native_Data_Set_Environment: Arc/Info
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: The database was audited for data entry errors through a series of reviews that checked for inconsistencies. Survey data was collected using a data library that limited errors in the field.
Logical_Consistency_Report:
Completeness_Report: This coverage contains habitat data for portions of the Dennys, Ducktap, East Machias, Kennebec, Machias, Penobscot, Pleasant, and Sheepscot River watersheds. The survey used sub-meter GPS receivers and other methods to map habitat breaks. There may be other tributaries in the watersheds that have not yet been surveyed and mapped.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: 2 - 5 meters (with differential correction) for Ducktrap, Machias, Pleasant, and most of the Dennys, East Machias, Kennebec, Penobscot and Sheepscot Rivers (see Process Description below for exceptions). In general PDOP values for the receivers were kept below 4.0 and Signal Noise Ratio was greater than 6.0, resulting in sub-meter accuracy. During some parts of the survey the PDOP mask was increased to values of greater than 4.0 due to dense forest cover and elevation masks. Base station files were acquired from the University of Maine Community Base Station. It is not possible to estimate the accuracy of the Narraguagus River, and parts of the Dennys, East Machias, Kennebec, Penobscot and Sheepscot surveys as those surveys fit attribute information collected in the field with only relative positional data onto a stream centerline.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: US Fish & Wildlife Service - Gulf of Maine Coastal Program
Publication_Date: Unpublished
Title: Maine Atlantic Salmon Habitat Surveys
Edition:
Geospatial_Data_Presentation_Form: Electronic
Publication_Information:
Publication_Place:
Publisher:
Other_Citation_Details: Trimble .ssf GPS files differentially corrected with Trimble Pathfinder Office software using University of Maine Community Base Station data.
Online_Linkage:
Larger_Work_Citation:
Citation_Information:
Originator:
Publication_Date:
Title:
Publication_Information:
Publication_Place:
Publisher:
Online_Linkage:
Source_Scale_Denominator:
Type_of_Source_Media: Electronic
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19840601
Ending_Date: 20000815
Source_Currentness_Reference:
Source_Citation_Abbreviation:
Source_Contribution: GPS files of points and lines were created from individual river surveys using Trimble Pro and Pro-XL GPS receivers to represent habitat dimensions and to capture feature attribute data. These data files were converted to Arc/INFO coverages, combined together, checked for inconsistencies, and combined with attribute databases.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey (USGS), Maine Office of Geographic Information Systems (MEGIS) (comp., ed.)
Publication_Date: 19970101
Title: streams
Edition:
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Augusta, ME
Publisher: Maine Office of Geographic Information Systems (MEGIS)
Other_Citation_Details: 24,000 ArcInfo version 7.2.1 patch 1, Solaris 2.5.1, pathname = /home11/lib83/24kbase/tiles/(quadname)/streams, coverage size = 0.09 MB
Online_Linkage: http://apollo.ogis.state.me.us/
Larger_Work_Citation:
Citation_Information:
Originator:
Publication_Date:
Title:
Publication_Information:
Publication_Place:
Publisher:
Online_Linkage:
Source_Scale_Denominator: 24000
Type_of_Source_Media: Electronic
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19480101
Ending_Date: 19970101
Source_Currentness_Reference: pulication date
Source_Citation_Abbreviation: streams
Source_Contribution: Stream arcs were copied and overlaid with habitat data to create new habitat data sets where no GPS-acquired centerline had been created.
Process_Step:
Process_Description: Three different processes were used to create subsets of the habitat data. The attribute "base" identifies which process was followed for each arc/line in this dataset. ***** (1) The first process (base = 'GPS'), and that which provides the most accurate depiction of the data, comes from river surveys using sub-meter accuracy GPS units to gather data in the field. Discrete habitat units were delineated on the basis of one or more physical characteristics that separated them from adjacent habitat types. Habitat surveys were conducted during low-flow periods. For convenience, surveys were performed from upstream to downstream. Once a habitat unit was defined, appropriate attribute data were measured and recorded for the unit. Trimble Pro-XL GPS receivers were used to record positional and attribute information. Where possible, a PDOP mask was set at 4.0 to generate sub-meter accuracy. Some areas of the survey have higher PDOP values due to dense vegetation or satellite problems. Base station data was acquired from the University of Maine's Community Base Station and from Maine Technical Source's Community Base Station. GPS files were differentially corrected using Pathfinder Office software and exported to Arc/Info generate files. Data created in this way include: the mainstem of the Dennys River surveyed in 1994; the Ducktrap River surveyed in 1996 and 1998; portions of the East Machias River surveyed in 1998, 1999 and 2000; portions of tributaries to the Kennebec River surveyed in 1999; the Machias River surveyed between 1994 and 1998; portions of tributaries to the Penobscot River surveyed in 1999; the Pleasant River surveyed in 1996 and 1998; and portions of the Sheepscot River surveyed in 1997 and 1998. ***** (2) The second process (base = 'GPS-Overlay') created datasets by overlaying historic salmon data on a GPS-acquired centerline. These historic surveys utilized standard transects (e.g., 200 and 600 feet) to measure and record habitat compostion. A centerline of the subject stream was created using a Trimble Pro or Pro-XL GPS receiver, often after the original survey, and the original survey data was overlaid on the centerline using ArcInfo's Dynamic Segmentation module. Data created in this way include: the Dennys River's Cathance Stream surveyed in 1986 and using a 1997 GPS-acquired centerline; portions of the East Machias surveyed in 1984; and the Narraguagus River surveyed between 1991 and 1993. ***** (3) The third process (base = 'Overlay') created datasets by using a similar transect method to the 'GPS-Overlay' method mentioned above. This process used field surveys that collected an abbreviated set of attribute information in 1998 and 1999, and then used Arc/Info's Dynamic Segmentation module to overlay the data onto a stream centerline. The stream centerlines came from the "streams" dataset created by the Maine Office of GIS and USGS, or were digitized with reference to the double-line streams of the "rivers" dataset also from MEGIS and USGS. Data created in this way include: the Dennys tributary, Venture Brook; East Machias tributaries, Barrows Stream and Palmer Brook; Kennebec tributary, Souadabscook Stream; Penobscot tributary, Felts Brook, and Sheepscot tributaries, Ben Brook, Choate Brook, Dyer River and Trout Brook.
Process_Date: 1995-2001
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Organization: US Fish and Wildlife Service - Gulf of Maine Coastal Program
Contact_Person: Jed Wright
Contact_Position: Biologist
Contact_Address:
Address_Type: mailing and physical address
Address: 4R Fundy Rd.
City: Falmouth
State_or_Province: ME
Postal_Code: 04105
Country: US
Contact_Voice_Telephone: 207-781-8364
Contact_Facsimile_Telephone: 207-781-8369
Contact_Electronic_Mail_Address: FW5ES_GOMP@fws.gov
Hours_of_Service: 8 am - 5 pm
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Complete Chain
Point_and_Vector_Object_Count: 7858
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 19
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -69
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 1
Ordinate_Resolution: 1
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1983
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.9786982
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: ashabitat.aat
Entity_Type_Definition: Arc Attribute Table
Entity_Type_Definition_Source: None
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: From-node identifier of linear feature
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 6258
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: To-node identifier of linear feature
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 6258
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal number of polygon to left of arc
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
Range_Domain_Maximum:
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal number of polygon to right of arc
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
Range_Domain_Maximum:
Attribute:
Attribute_Label: Length
Attribute_Definition: Length of line
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.50
Range_Domain_Maximum: 10463.15
Attribute:
Attribute_Label: ashab2#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 7858
Attribute:
Attribute_Label: ashab2-id
Attribute_Definition: Feature identification number
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 84445
Attribute:
Attribute_Label: Joinid
Attribute_Definition: Unique identifier for each habitat unit (usually a concatenation of year of survey (YrSurvey), GPS rover file name, and sequential order of GPS feature taken within the rover file).
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: Branch
Attribute_Definition: Branch name. Drainage name followed by either "Mainstem" or a tributary name (usually from USGS 1:24,000 hydrography).
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Dennys Mainstem
Enumerated_Domain_Value_Definition: Mainstem of Dennys River
Enumerated_Domain:
Enumerated_Domain_Value: Ducktrap Mainstem
Enumerated_Domain_Value_Definition: Mainstem of Ducktrap River
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Mainstem
Enumerated_Domain_Value_Definition: Mainstem of East Machias River
Enumerated_Domain:
Enumerated_Domain_Value: Machias Mainstem
Enumerated_Domain_Value_Definition: Mainstem of Machias River
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Mainstem
Enumerated_Domain_Value_Definition: Mainstem of Narraguagus River
Enumerated_Domain:
Enumerated_Domain_Value: Pleasant Mainstem
Enumerated_Domain_Value_Definition: Mainstem of Pleasant River
Enumerated_Domain:
Enumerated_Domain_Value: Sheepscot Mainstem
Enumerated_Domain_Value_Definition: Mainstem of Sheepscot River
Enumerated_Domain:
Enumerated_Domain_Value: Dennys Cathance Stream
Enumerated_Domain_Value_Definition: Cathance Stream tributary of Dennys
Enumerated_Domain:
Enumerated_Domain_Value: Dennys Venture Brook
Enumerated_Domain_Value_Definition: Venture Brook tributary of Dennys
Enumerated_Domain:
Enumerated_Domain_Value: Ducktrap Black Brook
Enumerated_Domain_Value_Definition: Black Brook tributary of Ducktrap
Enumerated_Domain:
Enumerated_Domain_Value: Ducktrap Kendall Brook
Enumerated_Domain_Value_Definition: Kendall Brook tributary of Ducktrap
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Barrows Stream
Enumerated_Domain_Value_Definition: Barrows Stream tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Beaverdam Stream
Enumerated_Domain_Value_Definition:
Beaverdam Stream tributary of East
Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Chase Mills Stream
Enumerated_Domain_Value_Definition:
Chase Mills Stream tributary of East
Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Clifford Stream
Enumerated_Domain_Value_Definition: Clifford Stream tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Creamer Brook
Enumerated_Domain_Value_Definition: Creamer Brook tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Harmon Stream
Enumerated_Domain_Value_Definition: Harmon Stream tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Long Lake Stream
Enumerated_Domain_Value_Definition: Long Lake Stream Stream tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Northern Stream
Enumerated_Domain_Value_Definition: Northern Stream tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Palmer Brook
Enumerated_Domain_Value_Definition: Palmer Brook tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Rocky Lake Stream
Enumerated_Domain_Value_Definition: Rocky Lake Stream tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: East Machias Seavey Stream
Enumerated_Domain_Value_Definition: Seavey Stream tributary of East Machias
Enumerated_Domain:
Enumerated_Domain_Value: Kennebec Bond Brook
Enumerated_Domain_Value_Definition: Bond Brook Tributary of Kennebec
Enumerated_Domain:
Enumerated_Domain_Value: Kennebec Cobbosseecontee Stream
Enumerated_Domain_Value_Definition:
Cobbosseecontee Stream Tributary of
Kennebec
Enumerated_Domain:
Enumerated_Domain_Value: Kennebec Togus Stream
Enumerated_Domain_Value_Definition: Togus Stream Tributary of Kennebec
Enumerated_Domain:
Enumerated_Domain_Value: Machias 2nd Lake Stream
Enumerated_Domain_Value_Definition: 2nd Lake Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias 3rd Lake Stream
Enumerated_Domain_Value_Definition: 3rd Lake Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias 4th Lake Stream
Enumerated_Domain_Value_Definition: 4th Lake Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias 5th Lake Stream
Enumerated_Domain_Value_Definition: 5th Lake Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias Bowles Brook
Enumerated_Domain_Value_Definition: Bowles Brook tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias Chain Lakes Stream
Enumerated_Domain_Value_Definition: Chain Lakes Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias Crooked River
Enumerated_Domain_Value_Definition: Crooked River tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias Holmes Brook
Enumerated_Domain_Value_Definition: Holmes Brook tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias Mopang Stream
Enumerated_Domain_Value_Definition: Mopang Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias New Stream
Enumerated_Domain_Value_Definition: New Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias Old Stream
Enumerated_Domain_Value_Definition: Old Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias Pembroke Stream
Enumerated_Domain_Value_Definition: Pembroke Stream tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Machias West Branch
Enumerated_Domain_Value_Definition: West Branch Machias tributary of Machias
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Thirtyfive Brook
Enumerated_Domain_Value_Definition: Thirtyfive Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Baker Brook
Enumerated_Domain_Value_Definition: Baker Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Bog Brook
Enumerated_Domain_Value_Definition: Bog Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Gould Brook
Enumerated_Domain_Value_Definition: Gould Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Great Falls Branch
Enumerated_Domain_Value_Definition: Great Falls Branch tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Humpback Brook
Enumerated_Domain_Value_Definition: Humpback Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Lawrence Brook
Enumerated_Domain_Value_Definition: Lawrence Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Little Narraguagus River
Enumerated_Domain_Value_Definition: Little Narraguagus River tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Pork Brook
Enumerated_Domain_Value_Definition: Pork Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Rocky Brook
Enumerated_Domain_Value_Definition: Rocky Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Schoodic Brook
Enumerated_Domain_Value_Definition: Schoodic Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Shorey Brook
Enumerated_Domain_Value_Definition: Shorey Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Sinclair Brook
Enumerated_Domain_Value_Definition: Sinclair Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus Spring Brook
Enumerated_Domain_Value_Definition: Spring Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus West Branch
Enumerated_Domain_Value_Definition: West Branch Narraguagus River
Enumerated_Domain:
Enumerated_Domain_Value: Narraguagus West Branch Brook
Enumerated_Domain_Value_Definition: West Branch Brook tributary of Narraguagus
Enumerated_Domain:
Enumerated_Domain_Value: Penobscot Cove Brook
Enumerated_Domain_Value_Definition: Cove Brook tributary of Penobscot
Enumerated_Domain:
Enumerated_Domain_Value: Penobscot Felts Brook
Enumerated_Domain_Value_Definition: Felts Brook tributary of Penobscot
Enumerated_Domain:
Enumerated_Domain_Value: Penobscot Souadabscook Stream
Enumerated_Domain_Value_Definition: Souadabscook Stream tributary of Penobscot
Enumerated_Domain:
Enumerated_Domain_Value: Pleasant Eastern Little River
Enumerated_Domain_Value_Definition: Eastern Little River tributary of Pleasant
Enumerated_Domain:
Enumerated_Domain_Value: Pleasant Western Little River
Enumerated_Domain_Value_Definition: Western Little River tributary of Pleasant
Enumerated_Domain:
Enumerated_Domain_Value: Sheepscot Ben Brook
Enumerated_Domain_Value_Definition: Ben Brook tributary of Sheepscot
Enumerated_Domain:
Enumerated_Domain_Value: Sheepscot Choate Brook
Enumerated_Domain_Value_Definition: Choate Brook tributary of Sheepscot
Enumerated_Domain:
Enumerated_Domain_Value: Sheepscot Dyer River
Enumerated_Domain_Value_Definition: Dyer River tributary of Sheepscot
Enumerated_Domain:
Enumerated_Domain_Value: Sheepscot Trout Brook
Enumerated_Domain_Value_Definition: Trout Brook tributary of Sheepscot
Enumerated_Domain:
Enumerated_Domain_Value: Sheepscot West Branch
Enumerated_Domain_Value_Definition: West Branch Sheepscot River
Attribute:
Attribute_Label: Yr_survey
Attribute_Definition: Year habitat unit was surveyed. Field may be blank if that portion of the stream channel was taken from existing GIS coverages.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1984
Range_Domain_Maximum: 2000
Attribute:
Attribute_Label: Base
Attribute_Definition: Habitat survey method
Attribute_Definition_Source: User Defined
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 overlaid onto GPS-acquired centerline, but with less detail than GPS above.
Enumerated_Domain:
Enumerated_Domain_Value: Overlay
Enumerated_Domain_Value_Definition: Least detailed attribute collection (e.g., no substrate percentages included) used for certain branches that do not contain large amounts of salmon habitat. Attribute data with relative positions overlaid onto MEGIS/USGS 1:24,000 streams.
Attribute:
Attribute_Label: Habcat
Attribute_Definition: Broad habitat category
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Flat
Enumerated_Domain_Value_Definition: Where Habtype = Pond, Dead, Pool, or Glide (see Habtype for description of Habtype = Pond, Dead, Pool, or Glide).
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: Run
Enumerated_Domain_Value_Definition: Where Habtype = Run (see Habtype for description of Habtype = Run).
Enumerated_Domain:
Enumerated_Domain_Value: Riffle
Enumerated_Domain_Value_Definition: Where Habtype = LRF, HRF, or PW (see Habtype for description of Habtype = LRF, HRF, or PW).
Enumerated_Domain:
Enumerated_Domain_Value: Riffle/Run
Enumerated_Domain_Value_Definition: Where Habtype = Riffle/Run (see Habtype for description of Habtype = Riffle/Run).
Attribute:
Attribute_Label: M2Area
Attribute_Definition: Habitat unit area in square meters. Can be either from tape-measured lengths and widths or linear distance between GPS points as measured with GIS multiplied by average width.
Attribute_Definition_Source: User computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.8
Range_Domain_Maximum: 299307.5
Attribute:
Attribute_Label: Spawn
Attribute_Definition: The assessment of the habitat unit that is designated by the survey crew as usable spawning habitat. The primary characteristic considered is substrate. Flows and depths are considered secondarily.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Y
Enumerated_Domain_Value_Definition: Spawning habitat is located within this unit.
Enumerated_Domain:
Enumerated_Domain_Value: N
Enumerated_Domain_Value_Definition: Spawning habitat is not located within this unit.
Attribute:
Attribute_Label: Sparea
Attribute_Definition:
Amount of area within the habitat unit in square meters that is considered suitable for spawning (substrate based). 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; 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 potentially useful for spawning was made and multiplied by M2area to yield Sparea.
Attribute_Definition_Source: User computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 2845.7
Attribute:
Attribute_Label: Rearing
Attribute_Definition: Low gradient riffles and runs
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Y
Enumerated_Domain_Value_Definition: Rearing habitat is located within this unit.
Enumerated_Domain:
Enumerated_Domain_Value: N
Enumerated_Domain_Value_Definition: Rearing habitat is not located within this unit.
Attribute:
Attribute_Label: RiverPt
Attribute_Definition: A sequential number representing the order in which habitat units were surveyed and thus combined into the GIS coverage. The sequence represents the order of habitat units as they were encountered and surveyed while moving linearly (generally) along the stream channel.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10900.0001
Range_Domain_Maximum: 120200.0065
Attribute:
Attribute_Label: Habnum
Attribute_Definition: A sequential number representing the order in which habitat units were surveyed and thus combined into the GIS coverage. The sequence represents the order of habitat units as they were encountered and surveyed while moving linearly (generally) along the stream channel.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: Channel
Attribute_Definition: Stream channel type
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mainstem
Enumerated_Domain_Value_Definition: Mainstem of major river or tributary stream
Enumerated_Domain:
Enumerated_Domain_Value: Main Isle Chan
Enumerated_Domain_Value_Definition: Primary channel where mainstem is divided by island(s).
Enumerated_Domain:
Enumerated_Domain_Value: Side Chan
Enumerated_Domain_Value_Definition: Secondary channel where mainstem is divided by island(s).
Attribute:
Attribute_Label: Habtype
Attribute_Definition: Specific habitat type
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Pond
Enumerated_Domain_Value_Definition: Naturally or artificially impounded area (a hydraulic control is implicit).
Enumerated_Domain:
Enumerated_Domain_Value: Dead
Enumerated_Domain_Value_Definition: No or very slow visible velocity except at high flows. Depths usually greater than glide and run in the same stream and substrates tend to be smaller (usually but not always soft-bottom types). Thalweg is apparent.
Enumerated_Domain:
Enumerated_Domain_Value: Pool
Enumerated_Domain_Value_Definition: Characteristically basin-shaped (i.e. deeper and wider than adjacent channel). Flow vectors not uniform across channel width.
Enumerated_Domain:
Enumerated_Domain_Value: Glide
Enumerated_Domain_Value_Definition: Water velocity is apparent, but depth and substrate combine such that the water surface remains unbroken. Usually, relatively lower water velocity than run. Major distinction from run is deeper water depth and smaller substrates. Negligible gradient (<0.25%).
Enumerated_Domain:
Enumerated_Domain_Value: Run
Enumerated_Domain_Value_Definition: Water velocity is apparent, but depth and substrate combine such that the water surface remains unbroken. Usually, relatively higher water velocity than glide. Major distinction from glide is shallower water depth and larger substrates. Negligible gradient (<0.25%).
Enumerated_Domain:
Enumerated_Domain_Value: PW
Enumerated_Domain_Value_Definition: PW (pocket water)- Often associated with step falls, sometimes present in habitat units with large boulders. Significant gradient (>0.25%).
Enumerated_Domain:
Enumerated_Domain_Value: LRF
Enumerated_Domain_Value_Definition: LRF (low gradient riffle)- Characterized by broken water surface at all but high flows. Gradient is <3% for small (subjective classification) streams and <2% for larger (subjective classification) streams.
Enumerated_Domain:
Enumerated_Domain_Value: HRF
Enumerated_Domain_Value_Definition: HRF (high gradient riffle)- Characterized by broken water surface at all but high flows. Gradient >3% for small (subjective classification) streams and >2% for larger (subjective classification) streams.
Enumerated_Domain:
Enumerated_Domain_Value: Riffle/Run
Enumerated_Domain_Value_Definition: A mixture of riffle and run habitat categories. Riffle type can be implied to be LRF unless otherwise specified.
Enumerated_Domain:
Enumerated_Domain_Value: Falls
Enumerated_Domain_Value_Definition: Classification is qualitative. Usually characterized by high percentages of ledge substrate and >6.0% gradient for small (subjective classification) streams, >4.0% gradient for larger (subjective classification) streams.
Attribute:
Attribute_Label: Mlength
Attribute_Definition: Habitat unit length in meters. Can be either from tape-measured length or linear distance between GPS points as measured with GIS.
Attribute_Definition_Source: User Computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 10463.2
Attribute:
Attribute_Label: Mwidth
Attribute_Definition: Average habitat unit width in meters. Calculated as the average of the upstream, downstream, and middle width (if measured).
Attribute_Definition_Source: User computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 91.5
Attribute:
Attribute_Label: MeanDepth
Attribute_Definition: Average habitat unit depth in meters. Calculated as the average depth as measured at the habitat unit boundaries, (3 downstream depths, 3 upstream depths).
Attribute_Definition_Source: User computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 47.6
Attribute:
Attribute_Label: Maxdepth
Attribute_Definition: The maximum depth in meters of the habitat unit.
Attribute_Definition_Source: User computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 32
Attribute:
Attribute_Label: Gradient
Attribute_Definition: The percent gradient over the length of the habitat unit. Usually measured for Habcat riffles and falls only.
Attribute_Definition_Source: User computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 37
Attribute:
Attribute_Label: Substrate
Attribute_Definition:
Algorithm based on observed relative proportions of 8 substrate categories (ledge:, large boulder: diameter>24", small boulder: 12"<diameter<24", cobble: 3"<diameter<12", gravel = 1"<diameter<3", pea gravel: 0.2"<diameter<1" , sand: diameter<0.2 , fines: ).
Attribute_Definition_Source: User computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FINE
Enumerated_Domain_Value_Definition: %sand+%fines > 50%
Enumerated_Domain:
Enumerated_Domain_Value: MODERATE
Enumerated_Domain_Value_Definition: %ledge+%large boulder+%small boulder+%cobble < 50%
Enumerated_Domain:
Enumerated_Domain_Value: COARSE
Enumerated_Domain_Value_Definition: %ledge+%large boulder+%small boulder+%cobble < 50%
Enumerated_Domain:
Enumerated_Domain_Value: UNCATEGORIZED
Enumerated_Domain_Value_Definition: No classification possible due to insufficient data, most likely resulting from an Overlay survey (attribute base = 'Overlay') of less detail than a full GPS survey.
Attribute:
Attribute_Label: Canopy
Attribute_Definition: Percentage of channel covered by over-story.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute:
Attribute_Label: Rootveg
Attribute_Definition: Percentage of unit bottom covered by rooted vegetation.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 95
Attribute:
Attribute_Label: Attachveg
Attribute_Definition: Percentage of unit substrate covered by attached vegetation.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute:
Attribute_Label: LocCode
Attribute_Definition: Identification code for physical location of the habitat unit (sub-reach, reach, branch, sub-drainage, and drainage). Code is the concatenation of the branch name, upstream extent and downstream extent of the sub-reach boundaries as measured in kilometers (nearest 0.01 km) from the mouth of the branch.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: Drainage
Attribute_Definition: Drainage or watershed name. Based on a unique connection to the ocean with respect to other drainages.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: SubDrain
Attribute_Definition: Sub-drainage name. For these purposes, a sub-drainage is defined for the mainstem of the drainage and for tributaries that flow directly into the mainstem.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: Reach
Attribute_Definition: Reach name. Defined by a fixed upstream boundary name and downstream boundary name. Usually boundaries are convenient and easily identifiable landmarks. All reaches fall in one and only one Branch.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: SubReach
Attribute_Definition: Sub-Reach name. Defined by a fixed upstream boundary name and downstream boundary name. Boundaries define the extent of segments of fairly contiguous segments of habitat comprised of riffles and run habitat categories. All habitat units fall in one and only one sub-reach; all sub-reaches fall in one and only one Reach.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: Altname
Attribute_Definition: Alternative name of the sub-reach used as a convenient way to refer to the stream segment.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: Landmark
Attribute_Definition: Landmark name or description that helps to describe the geographic location of the habitat unit.
Attribute_Definition_Source: User Defined
Attribute:
Attribute_Label: Comment
Attribute_Definition: Some description of a survey event or feature of the habitat unit that is not covered elsewhere in the record
Attribute_Definition_Source: User Defined
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: US Fish and Wildlife Service - Gulf of Maine Coastal Program
Contact_Person: Jed Wright
Contact_Position: Biologist
Contact_Address:
Address_Type: mailing and physical address
Address: 4R Fundy Rd.
City: Falmouth
State_or_Province: ME
Postal_Code: 04105
Country: US
Contact_Voice_Telephone: 207-781-8364
Contact_Facsimile_Telephone: 207-781-8369
Contact_Electronic_Mail_Address: FW5ES_GOMP@fws.gov
Hours_of_Service: 8 am - 5 pm
Resource_Description: Maine Atlantic Salmon Habitat Survey
Distribution_Liability: Users must assume responsibility to determine the usability of these data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcInfo
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: IS0 9660
Compatibility_Information: ISO 966 format allows the CDROM to be read by most computer operating systems.
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20000918
Metadata_Review_Date:20000920
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: US Fish and Wildlife Service - Gulf of Maine Coastal Program
Contact_Person: Jed Wright
Contact_Position: Biologist
Contact_Address:
Address_Type: mailing and physical address
Address: 4R Fundy Rd.
City: Falmouth
State_or_Province: ME
Postal_Code: 04105
Country: US
Contact_Voice_Telephone: 207-781-8364
Contact_Facsimile_Telephone: 207-781-8369
Contact_Electronic_Mail_Address: FW5ES_GOMP@fws.gov
Hours_of_Service: 8 am - 5 pm
Metadata_Standard_Name: FGDC CSDGM
Metadata_Standard_Version: FGDC-STD-001-1998