Aggregated Salmon Gillnet Catch and Effort SCEAs 2001-2007

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:

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

Publication_Date: May 2010

Title: Aggregated Salmon Gillnet Catch and Effort SCEAs 2001-2007

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

Other_Citation_Details:

BCMCA took original DFO source data by species and year and merged to create this aggregated dataset.

Online_Linkage:

\\POTTER\L$\Data Library\Restricted\CommercialFish\BCMCA_hu_CommercialFish_SalmonGillnet_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 Aggregated Salmon Gillnet (GN) dataset has been assembled from source data provided by Fisheries and Oceans Canada, Pacific Biological Station. The dataset is comprised of an aggregate of five species (Chinook, chum, coho, pink, and sockeye) and specifically targets the 2001-2007 fishing seasons. Data has been binned by salmon catch estimate areas (SCEAs).
This is one of thee shapefiles intended to represent the spatial distribution of commercial salmon fishing by different gear types. The salmon catch estimate areas (SCEA) have been created as a means of rolling up the catch and effort values from the many annual openings for commercial salmon fishing. DFO first started to use SCEAs to categorize salmon catch in 2001. Because different fleets fish at different times for different species, the SCEAs have been digitized to represent where all openings took place for the given geographic unit in a given year. When a certain geographic feature is consistently not opened for any gear type (e.g., ribbon boundary around a creek mouth, protected area etc.) that feature has been removed from the SCEA, hence SCEAs may change over time. When a SCEA changes, a new SCEA name is assigned.

Purpose:

The purpose of the data is to display complete, up-to-date information on commercial salmon (Chinook, chum, coho, pink and sockeye) fishing by gillnet activities between 2001 and 2007 along the coast of British Columbia for the BCMCA Atlas and Marxan analyses. This dataset developed with the financial assistance of the British Columbia Marine Conservation Analysis (BCMCA).
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:

Source data was provided in separate shape files for each year (2001-2007), gear type (gillnet, troll, and seine) and species (Chinook, chum, coho, pink, and sockeye). Each source file had information on total effort (boat days), salmon catch by species and salmon released by species for each SCEA. Data was aggregated based on the "SCEA Area_Name" field to calculate a cumulative catch for each species. The "Year" field details which years the SCEA had recorded catch (data were not normalized by the number of years represented by the polygon and SCEAs may overlap from year to year). Recommendations for the division of data came from the Commercial Fisheries Workshop held by the BCMCA in March 2010. Although the time period covered by this dataset is 7 years, the number of years each salmon catch estimate area (SCEA) had an active fishery varies from 1 to 6.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2001

Ending_Date: 2007

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -133.529106

East_Bounding_Coordinate: -121.662680

North_Bounding_Coordinate: 55.988081

South_Bounding_Coordinate: 48.058667

Keywords:

Theme:

Theme_Keyword: Salmon Gillnet

Theme_Keyword: economy

Theme_Keyword: catch

Theme_Keyword: SCEA

Theme_Keyword: Salmon Catchment Estimation Area

Place:

Place_Keyword: BC

Place_Keyword: Pacific Ocean

Temporal:

Temporal_Keyword: 2001

Temporal_Keyword: 2002

Temporal_Keyword: 2003

Temporal_Keyword: 2004

Temporal_Keyword: 2005

Temporal_Keyword: 2006

Temporal_Keyword: 2007

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_Person_Primary:

Contact_Person: Sean MacConnachie

Contact_Organization: Fisheries and Oceans Canada

Contact_Position: Species at Risk Biologist

Contact_Address:

Address: 3190 Hammond Bay Road

City: Nanaimo

State_or_Province: BC

Postal_Code: V9T 6N7

Country: Canada

Contact_Voice_Telephone: 250-756-7223

Contact_Facsimile_Telephone: 250-756-7149

Contact_Electronic_Mail_Address: sean.macconnachie@dfo-mpo.gc.ca

Data_Set_Credit:

Fisheries and Oceans Canada, Pacific Biological Station. Creation of the SCEAs was funded by the BCMCA.

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

For the source SCEA data, about 95% of the lines have been checked and corrected for source attribute accuracy. A similar 95% check has been completed for the polygon attributes.

Logical_Consistency_Report:

SCEAs were first used in 2001 to represent areas that can be open for commercial salmon fishing, recognizing that salmon openings are not static and can vary over time. SCEAs have been revised over time to exclude areas consistently not opened for any gear type and some overlap between SCEAs occur. There are many SCEAs used in 2001 which were modified (shrunk) in subsequent years. Refinements to data collection methods subsequent to 2001 have resulted in DFO recommending that 2001 data not be used.
These data imply an even distribution of catch across any SCEA, however that is typically not the case in reality.

Completeness_Report:

See the Marine Atlas of British Columbia, pp157, 163, & 167, for reviewer comments and caveats of use.
To protect confidentiality some data catch and effort values have been removed. The count of commercial fishing vessels for each spatial unit within which data are provided had to be greater than 2 for the information to be made public. This screen was set by DFO staff for each year before data were binned across years. Notations in the comment field of the attribute table for the individual source shape file of that fishing type and year will reflect if data had to be removed. This information has not been transferred to the aggregated file. The number of years that each SCEA had an active fishery that met privacy standards varies from 1 to 6.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Fisheries and Oceans Canada, Pacific Biological Station

Publication_Date: August 2008

Title: scea_statsV3_8_23 - Salmon Catchment Estimation Area (SCEA)

Source_Scale_Denominator: 1:20,000 to 1:500,000

Source_Contribution:

Salmon Catchment Estimation Area boundaries were digitized by Catherine Griffiths, with funding provided by the BC Marine Conservation Analysis, and are represented as polygons. The SCEA coordinates have been closed with a 1:50,000 scale digital coastline, extracted from the BC Watershed Atlas, and are intended for display purposes from about 1:500,000 to 1:20,000.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Fisheries and Oceans Canada, Pacific Biological Station

Publication_Date: Unpublished Material

Title: SCEA Catch and Effort tables

Type_of_Source_Media: computer program

Source_Contribution:

Catch and effort values and SCEA descriptions from Bruce Patton, Fisheries Operating System (FOS) Fisheries and Oceans Canada,

Process_Step:

Process_Description:

Commercial salmon fishery catch and efforts values are collected from all commercial salmon opening for all gear types and fleets. The spatial resolution for each opening varies, as does the consistency in reporting. At a minimum, all openings (and their resulting catch and effort values) are rolled up to non-standardized polygons loosely based on aggregates of PFMA sub-areas. These aggregate areas are termed salmon catch estimation areas (SCEA).
Creation of the SCEAs involved creating a digitized GIS layer from a MS Excel table (provided by DFO) that described the geographic boundaries of each SCEA. In most instances the aggregates layers corresponded exactly with PFMA-sub-areas. However in a few instances a more precise description of individual SCEA was required, which necessitated contacting individual fishery managers to more accurately describe where fishery openings take place in their area of responsibility.
Steps: 1. Review the excel spreadsheet and establish land locations in descriptions. 2. Sort queries into the management areas and contact manager by phone and email to define the boundaries more precisely. 3. Using the Statistical Area Version 3 of the BC watershed atlas coastline in ArcGIS 9.2, a new shapefile for the subareas covering the SCEA were developed. 4. Create a new line file to split the polygons as needed for the SCEA. Images of the lines and the stat areas were created and sent to the area managers as needed to confirm the positions. (Cases of ‘mid-channel’ and ‘portions of” were clarified). 5. When the SCEA was confirmed the subareas were merged to create the SCEA polygon with the unique FA_ID from the spreadsheet as the identifier. 6. Append the attribute table in the shapefile with the management area and fishery area descriptions. (It appears that the numeric identifier is not the usual reference for the fishery managers so this step should make the file more accessible for the DFO staff). 7. Metadata was prepared for the shapefile. 8. The process for shapefile creation was repeated for latest CHS coastline version of the PFMA GIS dataset. The shapefiles were compared to confirm they contain the same polygons and labels.

Source_Used_Citation_Abbreviation: scea_statsV3_8_23

Process_Date: August 2008

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Catherine J. Griffiths

Contact_Organization: GIS Consultant

Contact_Address:

Address_Type: mailing and physical address

Address: 122 Dover Place

City: Salt Spring Island

State_or_Province: BC

Postal_Code: V8K 1R8

Country: Canada

Contact_Voice_Telephone: 250-537-5642

Contact_Facsimile_Telephone: 250-537-5643

Contact_Electronic_Mail_Address: cjgrif@telus.net

Process_Step:

Process_Description:

- Further edits made to refine SCEA as further input received from different managers. - Pacific Fishery Management Areas (PFMA) added to SCEA shape file. Some instances where the SCEA coincide with the PFMA. - SCEAs are joined by year and gear type. Selected data exported to create new shapefiles for each gear type and year. - Attribute table modified to remove invalid and or replicated fields resulting from spatial join.

Source_Used_Citation_Abbreviation: scea_statsV3_8_23

Process_Date: January 2009

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Sean MacConnachie

Contact_Organization: Fisheries and Oceans Canada

Contact_Position: Species at Risk Biologist

Contact_Address:

Address_Type: mailing and physical address

Address: 3190 Hammond Bay Road

City: Nanaimo

State_or_Province: BC

Postal_Code: V9K 6N7

Country: Canada

Contact_Voice_Telephone: 250-756-7223

Contact_Electronic_Mail_Address: sean.macconnachie@dfo-mpo.gc.ca

Process_Step:

Process_Description:

- Data was aggregated by gear type (gillnet, troll, and seine) for all years (2001-2007) and all species (Chinook, chum, coho, pink, and sockeye) based on the "Area_Name" field. This resulted in three shapefiles, one for each gear type. - Cumulative catch for each species in a SCEA was calculated by summing catch for each year. Fields for catch for individual years was dropped, as was fields populated with the number of fish released for each species. - The "Year" field details which years the SCEA had recorded catch (data were not normalized by the number of years represented by the polygon and SCEAs may overlap from year to year). - Recommendations for the division of data came from the Commercial Fisheries Workshop held by the BCMCA in March 2010.

Process_Date: May 2010

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Lindsay McBlane

Contact_Organization:

Parks Canada, Western and Northern Service Centre (on behalf of the BCMCA)

Contact_Position: Resource Conservation Technician

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: 102

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_SalmonGillnet_data

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: FA_ID

Attribute_Definition: Unique identifier for each SCEA

Attribute:

Attribute_Label: AREA_NAME

Attribute_Definition: Fishery area name

Attribute:

Attribute_Label: FA_ID_1

Attribute_Definition: Unique identifier for each SCEA

Attribute:

Attribute_Label: FISHERY

Attribute_Definition: Fishery type

Attribute:

Attribute_Label: ESTIMATE_T

Attribute_Definition: When catch values were collected

Attribute:

Attribute_Label: YEAR

Attribute_Definition: Calendar years SCEA has fishing catch and effort values

Attribute:

Attribute_Label: AREA_NAM_1

Attribute_Definition: Name of SCEA

Attribute_Definition_Source: based on Pacific Fishery Management Area

Attribute:

Attribute_Label: BOAT_DAYS

Attribute_Definition:

Total number of boat days (effort) in the SCEA for all calendar years SCEA has data

Attribute:

Attribute_Label: SOCKEYE_KE

Attribute_Definition: Number of sockeye kept for all calendar years SCEA has data

Attribute:

Attribute_Label: COHO_KEPT

Attribute_Definition: Number of coho kept for all calendar years SCEA has data

Attribute:

Attribute_Label: PINK_KEPT

Attribute_Definition: Number of pink kept for all calendar years SCEA has data

Attribute:

Attribute_Label: CHUM_KEPT

Attribute_Definition: Number of chum kept for all calendar years SCEA has data

Attribute:

Attribute_Label: CHINOOK_KE

Attribute_Definition: Number of Chinook kept for all calendar years SCEA has data

Attribute:

Attribute_Label: STEELHEAD_

Attribute_Definition: Number of Steelhead kept for all calendar years SCEA has data

Attribute:

Attribute_Label: STEELHEAD1

Attribute_Definition:

Number of steelhead released for all calendar years SCEA has data

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dwight McCullough

Contact_Organization: Fisheries and Oceans Canada

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: mailing and physical address

Address: Suite 200 401 Burrard Street

City: Vancouver

State_or_Province: BC

Postal_Code: V6C 3S4

Country: Canada

Contact_Voice_Telephone: 604-666-2044

Contact_Electronic_Mail_Address: Dwight.McCullough@dfo-mpo.gc.ca

Resource_Description: Downloadable Data

Distribution_Liability:

All errors or omissions are the fault of the author. In case of error or omissions that do not coincide with Regional Data Unit, the Regional Data Unit values will take precedence.
Not for navigational purposes. Although DFO has undertaken all reasonable precautions and error checking procedures, these datasets may contain errors. They may not be current. There may be incorrect or missing information. They should never be used for navigation. DFO is not responsible for damages resulting from any omissions, deletions, or errors in these datasets. DFO specifically does not guarantee suitability or fitness for a particular purpose. DFO must be acknowledged as the source of these datasets in any maps or reports. Please forward any error information to DFO for remedial action.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 22.392

Available_Time_Period:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2001

Ending_Date: 2007

Metadata_Reference_Information:

Metadata_Date: 20111230

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Nicolson

Contact_Organization: British Columbia Marine Conservation Analysis

Contact_Position: Project Manager

Contact_Address:

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