Dungeness Crab Commercial Fishery Kernel Density Estimate of Effort – full logbook entry protocol 2007/08 - 2010/11, ODFW

Identification Information:
Citation:
Citation Information:
Originator: Kelly Corbett, Oregon Department of Fish and Wildlife , Commercial Dungeness Crab Project Leader
Publication Date: 20211029
Publication Time: 050000
Title: Dungeness Crab Commercial Fishery Kernel Density Estimate of Effort – full logbook entry protocol 2007/08 - 2010/11, ODFW
Geospatial Data Presentation Form: remote-sensing image
Description:
Abstract: This layer depicts the commercial Dungeness crab fishing effort expressed as the total number of pots pulled from 2007/08 to 2010/11 crab seasons. The Oregon commercial Dungeness crab fishery targets Dungeness crab using pots over sandy and muddy habitats off the Oregon coast in both state and federal waters between approximately 0-125 fathoms. The layer was developed using the kernel density function in ArcPro. Kernel density estimates were created using the line density spatial analyst tool. Commercial crab logbook pulled pots string data were used to create polylines that met the following criteria:Pulled pot strings that were missing spatial information were removedPulled pot strings that intersected land were removedPulled pot strings that exceeded the fishery depth (125 fathoms) were removedPulled pot strings that did not meet the rule of three unique vessels per 1km grid cell were removedThese filters removed 18% of the pulled pot strings for all seasons combined.The number of pots pulled per string were used as the population field with an output cell size of 1km and a search radius of 1500. Fishery logbook data are recorded on standardized data sheets by fishermen during their fishing operations. The logbooks are later turned over to ODFW for data entry and processing. All logbook data received by ODFW that could be matched with ODFW fish ticket information (i.e. trips) for these crab seasons (07/08 through 10/11) were entered, although logbook submission non-compliance, poor data quality and filtering for confidentiality are contributing factors to this data set representing less than 100% of the landings made during each crab season. Because the data are recorded by many independent sources, ODFW cannot guarantee the accuracy of all logbook data.
Purpose: This layer was developed for large-scale offshore wind energy development planning off of Oregon, and should be used for that purpose only. Use for offshore wind siting or other purposes would require additional analyses of the data.
Time Period of Content:
Time Period Information:
Multiple Dates/Times:
Single Date/Time:
Calendar Date: 20110501
Single Date/Time:
Calendar Date: 20071201
Currentness Reference: Commercail Dungeness Crab Season 2007/08 - 2010/11
Status:
Progress: Complete
Maintenance and Update Frequency: Unknown
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -124.751297
East Bounding Coordinate: -123.906502
North Bounding Coordinate: 46.465984
South Bounding Coordinate: 41.795471
Keywords:
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: crab
Theme Keyword: KDE
Theme Keyword: Dungeness
Theme Keyword: ODFW
Theme Keyword: Oregon
Access Constraints: None
Use Constraints: This layer was developed for large-scale offshore wind energy development planning off of Oregon, and should be used for that purpose only.
Data Set Credit: If the user intends to use the data for purposes other than large-scale offshore wind energy planning, please contact: ODFW Marine Resources Program Kelly Corbett Commercial Dungeness Crab Project Leader kelly.c.corbett@odfw.oregon.gov
Native Data Set Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.0.12790
Spatial Data Organization Information:
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: GT-polygon composed of chains
Point and Vector Object Count: 9334
Raster Object Information:
Raster Object Type: Grid Cell
Row Count: 388
Column Count: 112
Spatial Reference Information:
Horizontal Coordinate System Definition:
Planar:
Map Projection:
Map Projection Name: WGS 1984 Web Mercator Auxiliary Sphere
Map Projection Parameters:
Other Projection’s Definition: PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]
Planar Coordinate Information:
Planar Coordinate Encoding Method: coordinate pair
Coordinate Representation:
Abscissa Resolution: 0.0001
Ordinate Resolution: 0.0001
Planar Distance Units: meter
Geodetic Model:
Horizontal Datum Name: D WGS 1984
Ellipsoid Name: WGS 1984
Semi-major Axis: 6378137.0
Denominator of Flattening Ratio: 298.257223563
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: Dungeness_Crab_2007_2011_ODFW
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: DN
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.
Attribute:
Attribute Label: Shape_Area
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Metadata Reference Information:
Metadata Date: 20211203
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Oregon Department of Fish and Wildlife
Contact Person: Kelly Corbett
Contact Position: Commercial Dungeness Crab Project Leader
Contact Address:
Address Type: mailing and physical
Address: 2040 SE Marine Science Drive
City: Newport
State or Province: Oregon
Postal Code: 97365
Country: US
Contact Voice Telephone: (541)270-5083
Contact Electronic Mail Address: kelly.c.corbett@odfw.oregon.gov
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time