Keywords
Theme:
barrier, dam, culvert, road crossing, stream, fish migration, corridor, habitat connectivity, obstacle, impediment, passage, inventory, in-stream structure, passage assessment, anadromy, diversion, salmon, steelhead, fragmentation
Place:
anadromous, California, coastal, Pacific, Central Valley
Description
Abstract
The Passage Assessment Database shapefile includes locations of existing and potential barriers to salmonid migration in California streams with basic information about each record.
Purpose
The Passage Assessment Database (PAD) is an ongoing inventory of known and potential barriers to anadromous fish in California. It compiles currently available fish passage information from more than 100 data sources, and allows past and future barrier assessments to be standardized and stored in one place. The inventory is to be used to identify barriers suitable for removal or modification to restore spawning and riparian habitat for salmon and steelhead, and to enhance aquatic and riparian habitat.
The PAD is intended to be compatible with a variety of other data sets related to anadromous fish issues. All PAD records are saved with geographic location information. This file can be used to represent the known and potential barriers on maps or to provide latitude/longitude coordinates. Each barrier record is indexed to the 24k high-resolution NHD allowing the user to combine the PAD with other fisheries data tied to the same hydrography. For a more detailed description of the digitizing process refer to the PAD Methodology.
A module containing information specific to the DFG Fish Screen and Fish Passage Program has been added. The Fish Screen and Fish Passage Program (FSFPP) conducts inventories of all screened and unscreened diversions and fish passage problems via site visits; it gathers information on the size and number of diversions at each site and presence of existing fish protective facilities. The FSFPP database is fairly comprehesive for the Central Valley streams (Sacramento and San Joaquin Rivers systems) and complements PAD that focuses mainly on California's coastal region.
A module specific to water rights obtained from the State Water Resource Control Board has been also added to the PAD. The Water Rights Module contains locations of water rights (WR) in coastal watersheds, WR application number and permit issue date, maximum permitted direct diversion and storage rates and season of operation.
For PAD records that have additional details regarding passage issues specific to certain salmonid and life stages and species, a Fish Barrier Module was developed. Mostly for road culverts assessed by FishXing software, information is available to determine whether the culvert blocks upstream passage for adult and for juvenile fish. In addition, an overlay with observation-based distribution data provided two data fields that identify if a barrier is located on a stream with positive observation of coho or steelhead. Please refer for the PAD Methodology document for additional details about specific PAD data categories.
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Status of the data
In work
Data update frequency:
Quarterly
Time period for which the data is relevant
Date and time:
August 2008
Description:
publication date
Publication Information
Who created the data: Pacific States Marine Fisheries Commission
Date and time:
August 2008
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Data storage and access information
File name: PAD_August2008
Type of data: vector digital data
Location of the data:
www.calfish.org
Data processing environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.5.1450
Accessing the data
Size of the data: 0.680 MB
Data transfer size: 0.680 MB
Constraints on accessing and using the data
Details about this document
Contents last updated: 20080827
at time 15123000
Who completed this document
Martina Koller
Pacific States Marine Fisheries Commission
mailing and physical address:
916-327-3837 (voice)
mkoller@dfg.ca.gov
Standards used to create this document
Standard name: FGDC Content Standards for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention used in this document: local time
Metadata profiles defining additonal information
ESRI Metadata Profile: http://www.esri.com/metadata/esriprof80.html
Horizontal coordinate system
Projected coordinate system name: NAD_1983_California_Teale_Albers
Geographic coordinate system name: GCS_North_American_1983
Details
Map Projection Name: Albers Conical Equal Area
Standard Parallel: 34.000000
Standard Parallel: 40.500000
Longitude of Central Meridian: -120.000000
Latitude of Projection Origin: 0.000000
False Easting: 0.000000
False Northing: -4000000.000000
Planar Coordinate Information
Planar Distance Units: meters
Coordinate Encoding Method: coordinate pair
Coordinate Representation
Abscissa Resolution: 0.000000
Ordinate Resolution: 0.000000
Geodetic Model
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257222
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Bounding coordinates
Horizontal
In decimal degrees
West:
-124.467341
East:
-113.508886
North:
42.085439
South:
32.484002
In projected or local coordinates
Left: -370672.148700
Right: 539036.060770
Top: 451899.944740
Bottom: -597877.691470
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Spatial data description
Vector data information
ESRI description
PAD_August2008
ESRI feature type: Simple
Geometry type: Point
Topology: FALSE
Feature count: 25474
Spatial Index: TRUE
Linear referencing: FALSE
SDTS description
Feature class: SDTS feature type, feature count
PAD_August2008:
Entity point, 25474