BCMCA_hu_CommercialFish_crab_marxan_data

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

Fisheries and Oceans Canada / BC Marine Conservation Analysis, a Tides Canada Initiatives Project

Publication_Date: January 2012

Title: BCMCA_hu_CommercialFish_crab_marxan_data

Edition: 1

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Marine Atlas of Pacific Canada

Publication_Information:

Publisher:

The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project

Online_Linkage:

\\data-server\gis\BCMCA\HumanUse\Repository\Commercial Fish\updates\BCMCA_hu_CommercialFish_crab_marxan_data.shp

Larger_Work_Citation:

Citation_Information:

Originator:

The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project

Publication_Date: May 2011

Title: Marine Atlas of Pacific Canada

Online_Linkage: www.bcmca.ca/atlas

Description:

Abstract:

The Dungeness Crab catch and effort grid dataset has been assembled directly from the Shellfish Stock Assessment harvest log database located at the Pacific Biological Station (PBS). The dataset has been modified to meet the sensitive nature of the data as per the Access to Information Act20(1)(b,c); which specifies that Fisheries and Oceans Canada will not disclose to a third party confidential information that may prejudice the competitive position of the fisher, in which fishing location has been identified as one of the entities to be protected. There was a 4km x 4km grid used in the desensitization process as well information was limited to total Effort (# traps and soak time) and total Catch (calculated lbs and number of pieces). The dataset is comprised of an aggregate of only dungeness and specifically targets the 2000-2004 fishing seasons.

Purpose:

The purpose of the data is to display complete, up-to-date information on commercial Dungeness crab fishing activities along the coast of British Columbia for the BCMCA Atlas and Marxan analyses. This dataset was originally developed in fulfillment of a request by the Oceans Action Plan (OAP) committee with the intent to contribute to management plans within the Pacific North Coast Integrated Management Area (PNCIMA). It was subsequently provided to the British Columbia Marine Conservation Analysis (BCMCA). Data presented as 2 km x 2 km planning units for MARXAN analysis.
The British Columbia Marine Conservation Analysis (BCMCA) is a collaborative project assembling and analyzing spatial information about Canada's Pacific Ocean. The overall goal of the BCMCA is to identify marine areas of high conservation value and marine areas important to human use. Results of the project are intended to inform and help advance marine planning initiatives in BC by providing collaborative, peer-reviewed scientific analyses based on the best ecological and human use spatial data at scales relevant to a BC coast-wide analysis.

Supplemental_Information:

Due to the variable nature of the data not all of the information in the database can be shown spatially. The data availability for this data set is 90.01%

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2000

Ending_Date: 2004

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -132.899734

East_Bounding_Coordinate: -122.255438

North_Bounding_Coordinate: 55.532329

South_Bounding_Coordinate: 48.188938

Keywords:

Theme:

Theme_Keyword_Thesaurus:

REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.

Theme_Keyword: Crab

Theme_Keyword: Trap

Theme_Keyword: Shellfish

Theme_Keyword: economy

Theme_Keyword: catch

Theme_Keyword: effort

Theme_Keyword: Dungeness

Theme_Keyword: Marxan

Place:

Place_Keyword: BC

Place_Keyword: Pacific Ocean

Temporal:

Temporal_Keyword: 2000

Temporal_Keyword: 2001

Temporal_Keyword: 2002

Temporal_Keyword: 2003

Temporal_Keyword: 2004

Access_Constraints:

A Limited Use Agreement must be completed and returned to Fisheries and Oceans Canada

Use_Constraints: As outlined in the Limited Use Agreement

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: BC Marine Conservation Analysis

Contact_Address:

Address_Type: mailing and physical address

Contact_Electronic_Mail_Address: info@bcmca.ca

Data_Set_Credit: Fisheries and Oceans Canada, Pacific Biological Station

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.3500

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

4km x 4km grid cells that meet the requirements of the Access to Information Act five attributes were obtained : soak_hrs, #_Traps,#_landed, catch_lbs, soak_days

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: soak_hours

Attribute_Accuracy_Explanation: A total soak time in hours from the CrabLogs database

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: #_landed

Attribute_Accuracy_Explanation:

Value is num_landed where given, or calculated from weight using table 'weights_by_area' where not given.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: catch_lbs

Attribute_Accuracy_Explanation:

Value is weight (converted to pounds) where given, or calculated from num_landed using table 'weights_by_area' where not given

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: soak_days

Attribute_Accuracy_Explanation: Number of Days fisher said Traps were Soaked

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: #_Traps

Attribute_Accuracy_Explanation: Number of Traps fisher reports pulling.

Logical_Consistency_Report:

Data has been cleaned using a dangle length of .001m and fuzzy tolerance of .0001m A 4km x 4km grid was used with an grid origin of: Easting -27940m, Northing 94650m To meet the sensitivity requirements of the Access to Information Act a count of 3 or more vessles (CFV field used), that were fishing within the same grid cell was used. To allow for more data to be shown the data was amalgamated across all years where accurate spatial information was provided.

Completeness_Report:

See the Marine Atlas of British Columbia, p121, for reviewer comments and caveats of use.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

A 4km x 4km grid was used with an grid origin of: Easting -27940m, Northing 94650m. Grid converted to a 2 km x 2 km grid for the BCMCA Marxan analyses.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

A 4km x 4km grid was used with an grid origin of: Easting -27940m, Northing 94650m

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: PBS Shellfish Data Unit

Publication_Date: Unknown

Title: Crab Trap Logs

Geospatial_Data_Presentation_Form: tabular digital data

Source_Scale_Denominator: Variable

Type_of_Source_Media: online Database

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2000

Ending_Date: 2004

Source_Currentness_Reference: publication date

Process_Step:

Process_Description:

- Queries crablog database for CFV, Catch, Effort, lat and long and year range fields - In ArcMap using Lon & Lat fields as XY coordinates created a shape file - Using XTOOLS XY field and coordinates were assigned. - Exported dbf file to uniquecfv.mdb database provided by Norm Olson (PBS) to populate index fields which were required to spatially sort unique CFV. XY fields were used to assign a point value associated with a unique grid value. Fields were than summed by CFV to provide a summed value for each unique CFV in each grid. - Within ArcMap imported the new dbf file into ArcMap and use XY coordinates to map the points. - Joined the 4km x 4km grid to the point file. During the joining all fields are summed. A newly created Sum of Count field indicated number of unique vessels in the grid. - Select only those records that have a sum vessel count greater than 2. - Export selected records and create new shape file. - Eliminated all irrelevant fields keeping only the GridCell, #_vessels, Effort and Catch attribute items

Process_Date: February 2006

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Sean MacConnachie

Contact_Organization: Fisheries and Oceans Canada

Contact_Position: Project Co-ordiantor

Contact_Address:

Address_Type: mailing and physical address

Address: 4166 Departure Bay Road

City: Nanaimo

State_or_Province: BC

Postal_Code: V9T 6B7

Country: Canada

Contact_Voice_Telephone: 250-756-7265

Process_Step:

Process_Description:

The individual datasets for Salmon (Chinook, Chum, Coho, Pink, Sockeye), Dungeness Crab, Geoduck, Green Sea Urchin, Groundfish Trawl, Halibut, Herring Roe, Humpback Shrimp, Krill, Pink Shrimp, Prawn, Red Sea Urchin, Sablefish (longline and trap), Sardines, Schedule II, Sea Cucumber, Sidestripe Shrimp and Rockfish Hook and Line were processed following a defined set of parameters and then combined together to provide a per planning unit catch for each individual fishery.
Processing Steps for data are as follows: 1. Have a clean PU file with only the Unit_ID 2. Make sure projection is in NAD 83 Environment Albers 3. Union the PU file with the fishery 4. Remove any polygons outside the study area 5. Add New_Area field + calculate the area in square meters 6. Determine Frequency (Toolbox>Analysis>Stats>Frequency) where the input is the unioned shapefile, the frequency file is FID_commer and the summary field is New_Area 7. Join the Frequency table to the Union Output (FID_commer to FID_commer) 8. Export joined file with new name (use _v2 at the end) 9. Add new field (Catch_PU) as a Double 10. Calculate the Catch per PU: Catch x New_Area / New_Area1 11. Open up the dbf in Excel and save as .xlsx. 12. Insert Pivot Table, Select Unit_ID as the row label and Catch_PU as the ? values. Then select all values for Catch_PU and copy and paste special (values) into new excel worksheet. 13. In Excel, generate full commercial fisheries table by selecting the values from the individual excel worksheets, providing the proper coding, and ensuring the numbers are correct. 14. Save completed fisheries database in Excel as .xlsx, Open the table in Microsoft Access, and re-save as a .dbase IV 15. Open the new .dbf in ArcInfo and join the commercial fisheries table to a clean PU file

Source_Used_Citation_Abbreviation: C:\DOCUME~1\CARRIE~1\LOCALS~1\Temp\xml1E.tmp

Process_Date: January 2012

Process_Time: 15301300

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Lindsay McBlane

Contact_Organization: Parks Canada, Western and Northern Service Centre (for BCMCA)

Contact_Position: Resource Conservation Technician

Process_Step:

Process_Description:

Planning units with a value for the crab fishery were selected and exported to a new file. Extraneous fields were removed.

Process_Date: January 2012

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Carrie Robb

Contact_Organization: BCMCA

Contact_Position: Data Manager

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 2256

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 50.000000

Standard_Parallel: 58.500000

Longitude_of_Central_Meridian: -126.000000

Latitude_of_Projection_Origin: 45.000000

False_Easting: 1000000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000

Ordinate_Resolution: 0.000000

Planar_Distance_Units: meters

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

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: BCMCA_hu_CommercialFish_crab_marxan_data

Entity_Type_Definition:

Crab by trap, 2000-2004, 4km x 4km grid, Greater than two vessls per grid

Attribute:

Attribute_Label: FID

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: UNIT_ID

Attribute_Definition: BCMCA planning unit ID

Attribute:

Attribute_Label: AREA

Attribute_Definition: Area of the planning unit

Attribute:

Attribute_Label: COST

Attribute_Definition: Planning unit cost

Attribute:

Attribute_Label: STATUS

Attribute_Definition: Planning unit status

Attribute:

Attribute_Label: X510

Attribute_Definition: Catch within the planning unit

Attribute:

Attribute_Label: ID

Attribute_Definition: Marxan ID

Overview_Description:

Entity_and_Attribute_Overview:

The 4km x 4km gridcells present in this dataset have met the 3 vessle rule. The attribute information have been rolled-up per gridcell include the Total "soak_days and Total "Catch_lbs".

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: BC Marine Conservation Analysis

Contact_Address:

Address_Type: mailing and physical address

Contact_Instructions: See www.bmca.ca for distribution details

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.016

Available_Time_Period:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2000

Ending_Date: 2004

Metadata_Reference_Information:

Metadata_Date: 20120116

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Carrie Robb

Contact_Organization: BCMCA

Contact_Position: Data Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 1405-207 W. Hastings St.

City: Vancouver

State_or_Province: BC

Postal_Code: V6B1H7

Contact_Voice_Telephone: (604) 696-5044

Contact_Electronic_Mail_Address: info@bcmca.ca

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

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