GlaucousWingedGull_Colonies_MARXAN
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project
- Publication_Date: November, 2009
- Title: GlaucousWingedGull_Colonies_MARXAN
- Geospatial_Data_Presentation_Form: vector digital data
- Series_Information:
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- Series_Name: Ecological Data
- Publication_Information:
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- Publisher: BCMCA
- Online_Linkage:
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\\vancouverserver\gis\BCMCA\data4Marxan_May2010\Seabirds\seabird_marxan_features.mdb
- Description:
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- Abstract:
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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.
- Purpose:
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The purpose of this dataset is to identify areal extents of Glaucous-winged Gull colony locations to help inform the marine feature identified at the BCMCA Seabirds Workshop. Data presented in 2x2 km planning units for MARXAN analysis.
- Supplemental_Information:
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Refer to the original metadata document for data limitations and usage and for a full detailed description of survey methodology. Title or link is provided within source information. Data was collected, merged and buffered by target feature layer using the following data sources:
1. CWS Seabird Colony data.
2. Parks Canada Nesting Seabird Colony data.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: unknown
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -133.308832
- East_Bounding_Coordinate: -122.458914
- North_Bounding_Coordinate: 54.715688
- South_Bounding_Coordinate: 48.118791
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus:
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REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
- Theme_Keyword: Glaucous-winged Gull
- Theme_Keyword: Colony locations
- Place:
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- Place_Keyword: British Columbia
- Access_Constraints:
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This dataset is subject to the terms and conditions of the data use agreements for the source datasets.
- Use_Constraints:
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This dataset is subject to the terms and conditions of the data use agreements for the source datasets.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Karin Bodtker
- Contact_Organization: British Columbia Marine Conservation Analysis
- Contact_Position: BCMCA Co-Chair
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 1405-207 West Hastings Street
- City: Vancouver
- State_or_Province: BC
- Postal_Code: V6B 1H7
- Country: Canada
- Contact_Voice_Telephone: 6046965044
- Contact_Electronic_Mail_Address: kbodtker@livingoceans.org
- Native_Data_Set_Environment:
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Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.3500
- Data_Quality_Information:
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- Lineage:
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- Source_Information:
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- Source_Contribution:
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Canadian Wildlife Service (CWS). Dataset Name: Sites.shp. Includes the locations of all known seabird colonies. Points representing seabird colony locations were digitized using a 1:250000 basemap. Locations of all colonies were checked against 1:20000 TRIM and marine digital charts. Some of the colonies were shifted slightly to correspond to visible islands. Contains data from other sources with surveys conducted after 1989. Data sources include BCMOE, Parks Canada, Laskeek Bay Conservation Society and Bamfield Marine Station. Refer to original metadata document for data usage and linitations. Metadata document: bc_seabirdColonies_to_2007_updatedJune2008_meta.doc.
- Source_Information:
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- Source_Contribution:
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Parks Canada. Dataset Name: NestingSeabirdsColonies.shp. Metadata document: Not supplied, however, updated using ArcCatalog. Haida Gwaii known nesting colonies of Petrels, Cormorants, Glaucous-winged Gulls, Murres, Pigeon Guillemots, Ancient Murrelets, Auklets and Puffins.
- Source_Information:
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- Source_Contribution: BCMCA 2 km x 2 km planning units for the Canadian Pacific EEZ.
- Process_Step:
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- Process_Description:
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<<The methods used to combine datasets to identify areal extents of Glaucous-winged Gull colony locations are as follows >>
- Source_Used_Citation_Abbreviation:
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\\CRMLTD03\E$\F\Crm1143\Source\080818_SourceDocs\Original_Data\Plants\BCMCA_Plants.gdb
- Process_Step:
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- Process_Description:
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--> Prepared CWS dataset:
Within SiteSurveys geodatabase table, selected by attributes all GWGU (Glaucous-winged Gull) and exported into seperate table. To maintain one-to-many relationship between spatial and aspatial, joined Sites spatial point layer to GWGU table via GISkey field.
- Process_Step:
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- Process_Description:
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Displayed XY data using newly created X_COOR and Y_COORD fields and using PCS Albers as coordinate system imported from Sites.shp. Exported data into feature class. Added 3 new fields using Add Field tool: Feature, Data_Source, Dataset_ID. Populated fields using Calculate Field tool. Feature field calculated to equal the common name of the marine feature. Data_Source field calculated to equal the name of the dataset the data was derived from. Dataset_ID field calculated to equal the common dataset identifier as categorized by BCMCA.
- Process_Step:
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- Process_Description:
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Re-projected from PCS Albers to NAD 1983 BC Environment Albers using Project tool.
- Process_Step:
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- Process_Description:
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--> Prepared Parks Canada dataset:
**Tables within original geodatabase were corrupted. Created new "File" geodatabase NestingSeabirdColonies2. Exported (right click - export - to dbase (multiple) all geodatabase tables to new geodatabase.** Converted NestingSeabirdColonies shapefile to geodatabase feature class using feature class to feature class tool.
- Process_Step:
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- Process_Description:
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To maintain one-to-many relationship between spatial and aspatial, added 2 new fields to NestingSeabirdsColonies2 point feature class "X_COORD" and "Y_COORD" and calculated geometry. Joined spatial point layer to aspatial "Gulls" table using Site field. Displayed XY coordinates and exported data into feature class using NAD 1983 BC Environment Albers coordinate system.
- Process_Step:
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- Process_Description:
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Added 3 new fields using Add Field tool: Feature, Data_Source, Dataset_ID. Populated fields using Calculate Field tool. Feature field calculated to equal the common name of the marine feature. Data_Source field calculated to equal the name of the dataset the data was derived from. Dataset_ID field calculated to equal the common dataset identifier as categorized by BCMCA.
- Process_Step:
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- Process_Description:
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Overlaid both Parks Canada and CWS colony data and reviewed each point. The following rules were used to create final feature layer: 1. If duplicate inventory years were recorded within CWS dataset, the point representing the most recent inventory year was kept. The same approach was used for the Parks Canada dataset. 2. If attributes (location, count and year) matched between CWS and Parks dataset, the CWS point was used and Parks points deleted. 3. In some cases, the most recent inventory date did not provide population estimates. In these cases, both inventory years were kept. This was generally found within Parks data. 4. In some cases, multiple points (CWS and Parks) were located on one island, attribute review revealed different count data. In these cases, PC points were deleted. 5. In some cases, the Parks data had the most recent inventory date. If the CWS attributes matched Parks, the most recent Parks inventory point was used to represent the seabird colony location and the CWS point was deleted. 6. In some cases, the CWS data summarized all Parks count data within small areas (i.e. Harrison Island) into one generalized point. In these cases, if the summed Parks count data matched CWS count data, the generalized CWS point was used to represent the seabird colony. Note: CWS metadata mentions NestPair estimated numbers are rounded off. In some cases, count attribute comparison between Parks and CWS data were slightly off due to rounding. In these cases, CWS point was kept. Both datasets contain source information in the table of attributes. For the CWS dataset, the source is listed as a number (DataRef field) and the metadata contains a listing of each source dataset by number. For the PC dataset, the source if written out in the file (Source field).
- Process_Step:
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- Process_Description:
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Merged CWS Seabird Colony and Parks Canada Nesting Colony datasets using Merge tool to create one dataset storing all Glaucous-winged Gull colony data. During merge process like fields were combined using Field Map window to eliminate duplicate or redundant column headings. Field Map was also used to eliminate unnecessary fields not applicable for final feature layer requirements.
- Process_Step:
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- Process_Description:
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Buffered colony point data to 2000m (radius) using Buffer tool. This buffer distance follows the methodology used in the CWS Marine Birds Areas of Interest database.
- Process_Step:
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- Process_Description: Created Metadata.
- Process_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person:
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Steps up to and including this one completed by Melissa Meneghetti
- Contact_Organization: Coastal Resource Mapping
- Process_Step:
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- Process_Description:
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Relative Importance (RI) field created and populated based on the values in NestPairs. Highly Important = 3 (>5% of total BC population); Moderately Important = 2 (1-5% of total BC population); and Less Important = 1 (<1% of total BC population). One record in NestPairs was found to be Null (NestPairs = '9999'). For this record the value in the Individuals field was used in place of nest paris to calculate RI.
- Process_Date: April 2010
- Process_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Carrie Robb
- Contact_Organization: Living Oceans Society (for BCMCA)
- Contact_Position: GIS Specialist
- Process_Step:
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- Process_Description:
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Colonies dissolved based on RI and intersected with BCMCA planning units. ID field added to hold marxan ID. Extraneous fields were removed. Lastly, the file was dissolved again based on the Unit ID and ID fields to ensure there was a unique record for each planning unit and importance class.
- Source_Used_Citation_Abbreviation: C:\DOCUME~1\CARRIE~1\LOCALS~1\Temp\xml89.tmp
- Process_Date: April 2010
- Process_Time: 19415700
- Process_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Carrie Robb
- Contact_Organization: Living Oceans Society (for BCMCA)
- Contact_Position: GIS Specialist
- Process_Step:
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- Process_Description: Unit ID updated to match new BCMCA planning unit IDs
- Source_Used_Citation_Abbreviation:
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O:\BCMCA\Data_Andy_temp_June07\GlaucousWingedGull_Colonies_MARXAN.xml
- Process_Date: June 2010
- Process_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Andy Pettersson
- Contact_Organization: BCMCA
- Contact_Position: GIS Contractor
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: G-polygon
- Point_and_Vector_Object_Count: 2222
- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Label point
- Point_and_Vector_Object_Count: 39346
- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
- Point_and_Vector_Object_Count: 39346
- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Point
- Point_and_Vector_Object_Count: 4
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Map_Projection:
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- Map_Projection_Name: Albers Conical Equal Area
- Albers_Conical_Equal_Area:
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- 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:
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- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
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- Abscissa_Resolution: 0.000349
- Ordinate_Resolution: 0.000349
- Planar_Distance_Units: meters
- Geodetic_Model:
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- 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
- Vertical_Coordinate_System_Definition:
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- Altitude_System_Definition:
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- Altitude_Resolution: 0.000100
- Altitude_Encoding_Method:
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Explicit elevation coordinate included with horizontal coordinates
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: GlaucousWingedGull_Colonies_MARXAN
- Attribute:
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- Attribute_Label: Shape_Length
- Attribute_Definition: Length of feature in internal units.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Positive real numbers that are automatically generated.
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: Shape_Area
- Attribute_Definition: Area of feature in internal units squared.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Positive real numbers that are automatically generated.
- Attribute:
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- Attribute_Label: UNIT_ID
- Attribute:
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- Attribute_Label: OBJECTID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: RI
- Attribute_Definition:
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Relative Importance (RI) based on the count of birds at this colony vs. the BC population.
- Attribute:
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- Attribute_Label: ID
- Attribute_Definition: Marxan ID
- Overview_Description:
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: British Columbia Marine Conservation Analysis
- Contact_Instructions: See www.bcmca.ca for distribution details
- Resource_Description: Downloadable Data
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Transfer_Size: 50.954
- Metadata_Reference_Information:
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- Metadata_Date: 20100617
- Metadata_Contact:
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- Contact_Information:
-
- Contact_Person_Primary:
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- Contact_Person: Carrie Robb
- Contact_Organization: Living Oceans Society (for BCMCA)
- Contact_Position: GIS Specialist
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 1405-207 West Hastings Street
- City: Vanvouver
- State_or_Province: BC
- Postal_Code: V6B 1H7
- Country: Canada
- Contact_Voice_Telephone: 604-696-5044
- Contact_Electronic_Mail_Address: crobb@livingoceans.org
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.6 on Thu Aug 26 15:17:50 2010